$153+ Cheap flights from Boston (BOS) to San Francisco Bay Area
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/1. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SFO
Jun 25 — Jul 21
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Boston to San Francisco Bay Area with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Boston to San Francisco Bay Area
Cheapest
Best
Last-minute
One-way
Cheapest flights from Boston to San Francisco Bay AreaExplore the most affordable flight options available from Boston to San Francisco Bay Area. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 26, 2026.
Explore the most affordable flight options available from Boston to San Francisco Bay Area. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 26, 2026.
This Delta deal was found by Cheapflights users on 5/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/106:30 am
BOS
- SJC
1 stop9h 23m
Delta
Mon 10/1211:33 am
SJC
- BOS
1 stop9h 47m
Delta
Deal found 5/21![Delta logo]()
$265
This United Airlines deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/55:01 pm
BOS
- SJC
1 stop8h 49m
United Airlines
Thu 9/106:37 pm
SJC
- BOS
2 stops10h 40m
United Airlines
Deal found 5/25![United Airlines logo]()
$270
This American Airlines deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/266:45 am
BOS
- SJC
1 stop9h 48m
American Airlines
Sat 9/56:00 am
SJC
- BOS
2 stops11h 00m
American Airlines
Deal found 5/22![American Airlines logo]()
$271
This CheapOair deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/208:00 am
BOS
- SJC
1 stop8h 45m
Alaska Airlines
Mon 8/245:06 pm
SJC
- BOS
1 stop9h 43m
Alaska Airlines
Deal found 5/25![Alaska Airlines logo]()
$275
This American Airlines deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/57:30 am
BOS
- SJC
1 stop9h 10m
American Airlines
Thu 9/107:08 pm
SJC
- BOS
1 stop7h 45m
American Airlines
Deal found 5/25![American Airlines logo]()
$278
This Southwest deal was found by Cheapflights users on 5/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/261:00 pm
BOS
- SJC
1 stop10h 55m
Southwest
Wed 9/307:00 pm
SJC
- BOS
1 stop8h 00m
Southwest
Deal found 5/21![Southwest logo]()
$280
This Southwest deal was found by Cheapflights users on 5/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/24:30 pm
BOS
- SJC
1 stop8h 55m
Southwest
Wed 7/810:40 am
SJC
- BOS
2 stops9h 50m
Southwest
Deal found 5/21![Southwest logo]()
$285
This American Airlines deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/266:45 am
BOS
- SJC
1 stop9h 54m
American Airlines
Wed 9/307:13 pm
SJC
- BOS
2 stops10h 15m
American Airlines
Deal found 5/22![American Airlines logo]()
$286
This CheapOair deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/28:00 am
BOS
- SJC
1 stop8h 30m
Alaska Airlines
Wed 9/99:39 am
SJC
- BOS
1 stop17h 30m
Alaska Airlines
Deal found 5/22![Alaska Airlines logo]()
$290
This Delta deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/144:05 pm
BOS
- SJC
1 stop9h 40m
Delta
Fri 10/21:23 pm
SJC
- BOS
1 stop7h 36m
Delta
Deal found 5/25![Delta logo]()
$292
This American Airlines deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/47:00 am
BOS
- SJC
1 stop7h 55m
American Airlines
Mon 7/67:23 pm
SJC
- BOS
2 stops10h 20m
American Airlines
Deal found 5/24![American Airlines logo]()
$294
This Southwest deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/157:30 am
BOS
- SJC
2 stops16h 20m
Southwest
Fri 9/251:25 pm
SJC
- BOS
1 stop8h 05m
Southwest
Deal found 5/24![Southwest logo]()
$296
Best flights from Boston to San Francisco Bay AreaDiscover carefully curated flight deals from Boston to San Francisco Bay Area that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 26, 2026.
Discover carefully curated flight deals from Boston to San Francisco Bay Area that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 26, 2026.
This Delta deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1010:55 am
BOS
- SJC
1 stop11h 40m
Delta
Mon 10/55:45 pm
SJC
- BOS
1 stop10h 55m
Delta
Deal found 5/24![Delta logo]()
$265
This JetBlue deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/28:55 pm
BOS
- SFO
Nonstop6h 36m
JetBlue
Wed 7/83:18 pm
SFO
- BOS
Nonstop5h 41m
JetBlue
Deal found 5/25![JetBlue logo]()
$337
This Southwest deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/96:45 pm
BOS
- OAK
1 stop8h 30m
Southwest
Wed 7/157:35 am
OAK
- BOS
1 stop12h 45m
Southwest
Deal found 5/25![Southwest logo]()
$342
This CheapOair deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/34:33 pm
BOS
- SJC
1 stop10h 21m
Alaska Airlines
Mon 7/65:02 pm
SJC
- BOS
1 stop9h 38m
Alaska Airlines
Deal found 5/25![Alaska Airlines logo]()
$357
This United Airlines deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/176:21 am
BOS
- SFO
1 stop9h 09m
United Airlines
Fri 6/1911:05 pm
SFO
- BOS
Nonstop5h 56m
United Airlines
Deal found 5/22![United Airlines logo]()
$442
This Delta deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/145:51 am
BOS
- SJC
1 stop9h 36m
Delta
Mon 8/2412:37 pm
SJC
- BOS
1 stop9h 48m
Delta
Deal found 5/25![Delta logo]()
$265
This Delta deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/1410:55 am
BOS
- SJC
1 stop9h 17m
Delta
Mon 7/2011:33 am
SJC
- BOS
1 stop9h 18m
Delta
Deal found 5/22![Delta logo]()
$292
This Southwest deal was found by Cheapflights users on 5/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/24:30 pm
BOS
- SJC
1 stop8h 55m
Southwest
Fri 7/107:00 pm
SJC
- BOS
2 stops10h 05m
Southwest
Deal found 5/23![Southwest logo]()
$352
This Southwest deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/83:45 pm
BOS
- SJC
2 stops10h 20m
Southwest
Wed 7/159:55 am
SJC
- BOS
1 stop10h 25m
Southwest
Deal found 5/25![Southwest logo]()
$352
This Delta deal was found by Cheapflights users on 5/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/285:30 am
BOS
- SJC
1 stop9h 00m
Delta
Mon 8/310:10 pm
SJC
- BOS
1 stop8h 29m
Delta
Deal found 5/23![Delta logo]()
$332
This Alaska Airlines deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/117:44 pm
BOS
- SJC
1 stop16h 39m
Alaska Airlines
Tue 8/189:09 am
SJC
- BOS
1 stop17h 31m
Alaska Airlines
Deal found 5/25![Alaska Airlines logo]()
$404
This JetBlue deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/167:55 am
BOS
- SFO
Nonstop6h 35m
JetBlue
Tue 8/2511:26 am
SFO
- BOS
Nonstop5h 50m
JetBlue
Deal found 5/25![JetBlue logo]()
$418
This Alaska Airlines deal was found by Cheapflights users on 5/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/37:00 am
BOS
- STS
1 stop17h 56m
Alaska Airlines
Sat 10/106:16 am
STS
- BOS
1 stop20h 05m
Alaska Airlines
Deal found 5/23![Alaska Airlines logo]()
$407
This United Airlines deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/209:20 am
BOS
- SFO
Nonstop6h 23m
United Airlines
Sun 8/3011:30 pm
SFO
- BOS
1 stop8h 24m
United Airlines
Deal found 5/25![United Airlines logo]()
$457
This Southwest deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/174:45 pm
BOS
- OAK
2 stops10h 30m
Southwest
Fri 7/2410:10 am
OAK
- BOS
1 stop10h 00m
Southwest
Deal found 5/24![Southwest logo]()
$380
This JetBlue deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/105:00 pm
BOS
- SFO
Nonstop6h 34m
JetBlue
Mon 7/1311:50 pm
SFO
- BOS
1 stop8h 43m
JetBlue
Deal found 5/22![JetBlue logo]()
$420
This Delta deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/1110:05 am
BOS
- SFO
Nonstop6h 40m
Delta
Tue 6/167:10 am
SFO
- BOS
Nonstop5h 36m
Delta
Deal found 5/25![Delta logo]()
$380
This Southwest deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/106:35 pm
BOS
- SFO
1 stop8h 30m
Southwest
Mon 8/1711:40 pm
SFO
- BOS
1 stop9h 35m
Southwest
Deal found 5/24![Southwest logo]()
$385
This United Airlines deal was found by Cheapflights users on 5/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/176:21 am
BOS
- SFO
1 stop9h 09m
United Airlines
Sun 6/216:00 am
SFO
- BOS
1 stop8h 57m
United Airlines
Deal found 5/21![United Airlines logo]()
$467
This Alaska Airlines deal was found by Cheapflights users on 5/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/178:28 am
BOS
- OAK
1 stop28h 29m
Alaska Airlines
Tue 7/212:50 pm
OAK
- BOS
1 stop11h 50m
Alaska Airlines
Deal found 5/21![Alaska Airlines logo]()
$448
This Southwest deal was found by Cheapflights users on 5/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/155:00 am
BOS
- SFO
1 stop13h 50m
Southwest
Fri 8/216:15 pm
SFO
- BOS
1 stop8h 45m
Southwest
Deal found 5/21![Southwest logo]()
$392
This Alaska Airlines deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/277:50 am
BOS
- STS
1 stop10h 10m
Alaska Airlines
Wed 10/287:00 am
STS
- BOS
2 stops13h 54m
Alaska Airlines
Deal found 5/25![Alaska Airlines logo]()
$466
This Southwest deal was found by Cheapflights users on 5/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/307:55 am
BOS
- SJC
2 stops11h 30m
Southwest
Thu 8/131:25 pm
SJC
- BOS
1 stop8h 05m
Southwest
Deal found 5/21![Southwest logo]()
$392
This Alaska Airlines deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/59:33 am
BOS
- STS
1 stop10h 23m
Alaska Airlines
Tue 9/88:07 am
STS
- BOS
1 stop19h 02m
Alaska Airlines
Deal found 5/25![Alaska Airlines logo]()
$477
This Southwest deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/255:20 am
BOS
- SJC
1 stop10h 25m
Southwest
Mon 7/2710:55 pm
SJC
- BOS
1 stop10h 20m
Southwest
Deal found 5/25![Southwest logo]()
$406
This Alaska Airlines deal was found by Cheapflights users on 5/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/19:33 am
BOS
- STS
1 stop9h 23m
Alaska Airlines
Mon 10/55:04 pm
STS
- BOS
1 stop11h 25m
Alaska Airlines
Deal found 5/21![Alaska Airlines logo]()
$477
This Southwest deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/304:30 pm
BOS
- OAK
1 stop9h 05m
Southwest
Mon 8/35:30 am
OAK
- BOS
1 stop8h 10m
Southwest
Deal found 5/22![Southwest logo]()
$408
This Alaska Airlines deal was found by Cheapflights users on 5/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/24:33 pm
BOS
- STS
1 stop9h 25m
Alaska Airlines
Wed 7/811:04 am
STS
- BOS
1 stop15h 36m
Alaska Airlines
Deal found 5/21![Alaska Airlines logo]()
$488
This Southwest deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/293:45 pm
BOS
- SJC
2 stops10h 20m
Southwest
Sun 8/27:35 pm
SJC
- BOS
2 stops9h 35m
Southwest
Deal found 5/22![Southwest logo]()
$415
This Alaska Airlines deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/167:44 pm
BOS
- OAK
1 stop16h 42m
Alaska Airlines
Wed 7/226:49 am
OAK
- BOS
1 stop19h 51m
Alaska Airlines
Deal found 5/22![Alaska Airlines logo]()
$495
Last-minute flights from Boston to San Francisco Bay AreaDiscover last-minute flight deals from Boston to San Francisco Bay Area. Data last updated May 26, 2026 and is based on user searches.
Discover last-minute flight deals from Boston to San Francisco Bay Area. Data last updated May 26, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 5/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/49:01 am
BOS
- SFO
1 stop10h 03m
Alaska Airlines
Thu 6/116:03 am
SFO
- BOS
1 stop9h 38m
Alaska Airlines
Deal found 5/23![Alaska Airlines logo]()
$331
This United Airlines deal was found by Cheapflights users on 5/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/69:07 am
BOS
- SFO
Nonstop6h 27m
United Airlines
Sat 6/1311:05 pm
SFO
- BOS
Nonstop5h 56m
United Airlines
Deal found 5/21![United Airlines logo]()
$322
This Expedia deal was found by Cheapflights users on 5/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/69:15 pm
BOS
- SFO
Nonstop6h 42m
Multiple Airlines
Tue 6/94:44 pm
SFO
- BOS
1 stop10h 00m
Multiple Airlines
Deal found 5/23![Multiple Airlines logo]()
$328
This Travelocity deal was found by Cheapflights users on 5/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/86:40 pm
BOS
- SFO
1 stop17h 53m
Alaska Airlines
Tue 6/166:00 am
SFO
- BOS
1 stop20h 40m
Alaska Airlines
Deal found 5/23![Alaska Airlines logo]()
$317
This Priceline deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/812:01 pm
BOS
- SFO
1 stop10h 56m
Multiple Airlines
Tue 6/99:31 pm
SFO
- BOS
Nonstop5h 42m
Multiple Airlines
Deal found 5/24![Multiple Airlines logo]()
$333
This Expedia deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/1010:25 am
BOS
- SFO
Nonstop6h 28m
Multiple Airlines
Tue 6/167:55 am
SFO
- BOS
1 stop18h 45m
Multiple Airlines
Deal found 5/25![Multiple Airlines logo]()
$318
This Delta deal was found by Cheapflights users on 5/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/116:20 am
BOS
- SJC
1 stop10h 59m
Delta
Tue 6/2312:46 pm
SJC
- BOS
1 stop9h 45m
Delta
Deal found 5/21![Delta logo]()
$292
This Expedia deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/119:10 am
BOS
- SFO
1 stop13h 45m
Multiple Airlines
Tue 6/166:00 am
SFO
- BOS
1 stop20h 40m
Multiple Airlines
Deal found 5/24![Multiple Airlines logo]()
$324
This Travelocity deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/1212:01 pm
BOS
- SFO
1 stop10h 54m
Multiple Airlines
Tue 6/167:55 am
SFO
- BOS
1 stop18h 45m
Multiple Airlines
Deal found 5/22![Multiple Airlines logo]()
$313
This Priceline deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/266:35 am
BOS
- SFO
Nonstop6h 33m
Multiple Airlines
Mon 7/611:00 pm
SFO
- BOS
1 stop8h 57m
Multiple Airlines
Deal found 5/25![Multiple Airlines logo]()
$321
This Priceline deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/2612:01 pm
BOS
- SFO
1 stop10h 54m
Frontier
Mon 7/611:00 pm
SFO
- BOS
1 stop8h 57m
Frontier
Deal found 5/25![Frontier logo]()
$329
This American Airlines deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/307:00 am
BOS
- SFO
1 stop10h 37m
American Airlines
Sat 7/48:15 am
SFO
- BOS
1 stop9h 24m
American Airlines
Deal found 5/25![American Airlines logo]()
$327
One-way flights from Boston to San Francisco Bay AreaSearch for one-way flight options from Boston to San Francisco Bay Area. Find affordable one-way fares based on user searches. Data last updated May 26, 2026.
Search for one-way flight options from Boston to San Francisco Bay Area. Find affordable one-way fares based on user searches. Data last updated May 26, 2026.
This Southwest deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/13:45 pm
BOS
- SJC
1 stop9h 40m
Southwest
Deal found 5/22![Southwest logo]()
$153
This American Airlines deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/166:20 am
BOS
- SJC
1 stop8h 45m
American Airlines
Deal found 5/25![American Airlines logo]()
$155
This Southwest deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/58:40 am
BOS
- SJC
2 stops12h 45m
Southwest
Deal found 5/22![Southwest logo]()
$158
This CheapOair deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/18:00 am
BOS
- OAK
1 stop9h 33m
Alaska Airlines
Deal found 5/25![Alaska Airlines logo]()
$159
This Delta deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/145:55 am
BOS
- SJC
1 stop9h 06m
Delta
Deal found 5/25![Delta logo]()
$160
This Super.com deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/1212:01 pm
BOS
- SFO
1 stop10h 54m
Frontier
Deal found 5/25![Frontier logo]()
$163
This Southwest deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/184:45 pm
BOS
- OAK
1 stop8h 45m
Southwest
Deal found 5/25![Southwest logo]()
$164
This Southwest deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/145:50 am
BOS
- SFO
1 stop7h 40m
Southwest
Deal found 5/25![Southwest logo]()
$164
This American Airlines deal was found by Cheapflights users on 5/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/306:00 am
BOS
- SFO
1 stop9h 17m
American Airlines
Deal found 5/23![American Airlines logo]()
$167
This Super.com deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/119:10 am
BOS
- SFO
1 stop13h 45m
Frontier
Deal found 5/25![Frontier logo]()
$168
This CheapOair deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/288:00 am
BOS
- SJC
1 stop8h 45m
Alaska Airlines
Deal found 5/25![Alaska Airlines logo]()
$168
This Delta deal was found by Cheapflights users on 5/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/910:05 am
BOS
- SFO
Nonstop6h 40m
Delta
Deal found 5/21![Delta logo]()
$169
Find flight deals from Boston to San Francisco Bay Area
Keep the following information in mind while searching for Boston to San Francisco Bay Area flight deals. Data was last updated May 26, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $265 (Delta) |
One-way from | $153 (Southwest) |
Popular in | April |
Cheapest in | January |
Average price | $427 |
Cheapflights Fare Finder
Customize your flight search to find flights from Boston to San Francisco Bay Area that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 26, 2026.
Use the filters below to find and compare flights from Boston to San Francisco Bay Area that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BostonSan Jose
BOS - SJC
BOSSJC
Boston Logan Intl
Thu 9/10
10:55 am-7:35 pm
1 stop11h 40m
San Jose
Mon 10/5
5:45 pm-7:40 am
1 stop10h 55m
$265
BostonSan Jose
BOS - SJC
BOSSJC
Boston Logan Intl
Fri 8/14
5:51 am-12:27 pm
1 stop9h 36m
San Jose
Mon 8/24
12:37 pm-1:25 am
1 stop9h 48m
$265
BostonSan Jose
BOS - SJC
BOSSJC
Boston Logan Intl
Tue 7/14
10:55 am-5:12 pm
1 stop9h 17m
San Jose
Mon 7/20
11:33 am-11:51 pm
1 stop9h 18m
$292
BostonSan Jose
BOS - SJC
BOSSJC
Boston Logan Intl
Tue 7/28
5:30 am-11:30 am
1 stop9h 00m
San Jose
Mon 8/3
10:10 pm-9:39 am
1 stop8h 29m
$332
BostonSan Francisco
BOS - SFO
BOSSFO
Boston Logan Intl
Thu 7/2
8:55 pm-12:31 am
Nonstop6h 36m
San Francisco
Wed 7/8
3:18 pm-11:59 pm
Nonstop5h 41m
$337
BostonOakland
BOS - OAK
BOSOAK
Boston Logan Intl
Thu 7/9
6:45 pm-12:15 am
1 stop8h 30m
Oakland
Wed 7/15
7:35 am-11:20 pm
1 stop12h 45m
$342
BostonSan Jose
BOS - SJC
BOSSJC
Boston Logan Intl
Thu 7/2
4:30 pm-10:25 pm
1 stop8h 55m
San Jose
Fri 7/10
7:00 pm-8:05 am
2 stops10h 05m
$352
BostonSan Jose
BOS - SJC
BOSSJC
Boston Logan Intl
Wed 7/8
3:45 pm-11:05 pm
2 stops10h 20m
San Jose
Wed 7/15
9:55 am-11:20 pm
1 stop10h 25m
$352
BostonSan Jose
BOS - SJC
BOSSJC
Boston Logan Intl
Fri 7/3
4:33 pm-11:54 pm
1 stop10h 21m
San Jose
Mon 7/6
5:02 pm-5:40 am
1 stop9h 38m
$357
BostonOakland
BOS - OAK
BOSOAK
Boston Logan Intl
Fri 7/17
4:45 pm-12:15 am
2 stops10h 30m
Oakland
Fri 7/24
10:10 am-11:10 pm
1 stop10h 00m
$380
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Boston to San Francisco Bay Area
Have a flexible travel schedule? Discover the best time to fly to San Francisco Bay Area from Boston with our price prediction graph.
BOS-SJC
BOS-SFO
BOS-OAK
BOS-STS
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Boston to San Francisco Bay Area
BOS-zzXIH
BOS-SJC
BOS-SFO
BOS-OAK
BOS-STS
What is the cheapest month to book a flight from Boston to San Francisco Bay Area?
Currently, January is the cheapest month in which you can book a flight from Boston to San Francisco Bay Area (average of $308). Flying from Boston to San Francisco Bay Area in May is currently the most expensive (average of $502). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from BOS to XIH?
Find hourly flight availability from Boston to San Francisco Bay Area. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 26, 2026.
It’s optimal to fly from Boston to San Francisco Bay Area in the evening. By choosing this option you can save up to 57% on the cost of your flight, compared to a flight at noon.
Weekly flight availability from Boston to San Francisco Bay Area
Explore weekly flight availability from Boston to San Francisco Bay Area. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated May 26, 2026.
The most flights from BOS to zzXIH are scheduled on a Monday (50 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (41 on average).
How far ahead should I book a flight from Boston to San Francisco Bay Area?
The price you pay for your flight from Boston to San Francisco Bay Area may vary depending on when you book. For the best chance of a lower fare, look to book 87 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest day to fly from Boston to San Francisco Bay Area?
Use this chart to determine the cheapest time to fly round-trip from Boston to San Francisco Bay Area. Price data was last updated on May 23, 2026.
Travelers seeking maximum savings on their Boston to San Francisco Bay Area flight should consider departing on Thursday afternoons when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Reviews of airlines servicing San Francisco Bay Area
Get insights into the airlines that provide service to San Francisco Bay Area. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Francisco Bay Area. Reviews last updated May 26, 2026.
See what other customers who have flown with Alaska Airlines,Southwest, andDelta from Boston to San Francisco Bay Area have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.8
Overall
7.9
Boarding
8.1
Entertainment
7.0
Crew
8.5
Food
7.0
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Comfort
7.8
Overall
7.9
Boarding
8.1
Entertainment
7.0
Crew
8.5
Food
7.0
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Comfort
7.8
Overall
7.9
Boarding
8.1
Entertainment
7.0
Crew
8.5
Food
7.0
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Comfort
7.8
Overall
7.9
Boarding
8.1
Entertainment
7.0
Crew
8.5
Food
7.0
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Comfort
7.8
Overall
7.9
Boarding
8.1
Entertainment
7.0
Crew
8.5
Food
7.0
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Comfort
7.8
Overall
7.9
Boarding
8.1
Entertainment
7.0
Crew
8.5
Food
7.0
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Related info for your journey
Find useful and relevant information for your journey from Boston to San Francisco Bay Area. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights
Alternative routes for Boston to San Francisco Bay Area
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to San Francisco Bay Area by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Boston to San Francisco Bay Area by cabin class
Find flights from Boston to San Francisco Bay Area, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Boston and San Francisco Bay Area flights
Browse other Boston and San Francisco Bay Area flight options. Last updated on May 26, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 9 airlines flying from Boston to San Francisco Bay Area
Discover the top 9 airlines that operate flights from Boston to San Francisco Bay Area. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 26, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$118 | Average$318 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$123 | Average$221 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$153 | Average$414 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$158 | Average$375 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$159 | Average$414 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$183 | Average$357 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$207 | Average$334 | FlexibilityNo cancel fee | On-time83% | |
| Cheapest$234 | Average$421 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$246 | Average$517 | FlexibilityNo cancel fee | On-time71% |