$117+ 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 5/13. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SFO
Apr 29 — May 61
Round-trip
1 adult, Economy
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Find cheap flights from Boston to San Francisco Bay Area with Cheapflights
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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
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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 March 30, 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 March 30, 2026.
This Southwest deal was found by Cheapflights users on 3/26. 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 4/226:20 pm
BOS
- OAK
1 stop8h 05m
Southwest
Wed 4/291:30 pm
OAK
- BOS
1 stop7h 35m
Southwest
Deal found 3/26![Southwest logo]()
$234
This Southwest deal was found by Cheapflights users on 3/25. 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.
Mon 4/276:55 pm
BOS
- OAK
1 stop8h 30m
Southwest
Tue 5/511:55 pm
OAK
- BOS
1 stop8h 05m
Southwest
Deal found 3/25![Southwest logo]()
$257
This flugladen.de deal was found by Cheapflights users on 3/28. 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 flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/236:00 am
BOS
- SFO
1 stop14h 34m
Multiple Airlines
Wed 4/292:00 pm
SFO
- BOS
Nonstop5h 45m
Multiple Airlines
Deal found 3/28![Multiple Airlines logo]()
$263
This CheapOair deal was found by Cheapflights users on 3/27. 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 5/16:00 am
BOS
- SFO
1 stop14h 34m
Multiple Airlines
Tue 5/58:45 pm
SFO
- BOS
Nonstop5h 42m
Multiple Airlines
Deal found 3/27![Multiple Airlines logo]()
$264
This CheapOair deal was found by Cheapflights users on 3/29. 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.
Mon 4/139:15 pm
BOS
- SFO
Nonstop6h 49m
Multiple Airlines
Sun 4/1910:38 pm
SFO
- BOS
1 stop9h 47m
Multiple Airlines
Deal found 3/29![Multiple Airlines logo]()
$266
This Expedia deal was found by Cheapflights users on 3/28. 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.
Tue 5/59:12 am
BOS
- SFO
1 stop13h 22m
Multiple Airlines
Mon 5/115:31 pm
SFO
- BOS
1 stop10h 41m
Multiple Airlines
Deal found 3/28![Multiple Airlines logo]()
$267
This SmartFares deal was found by Cheapflights users on 3/28. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/238:19 pm
BOS
- SFO
Nonstop6h 40m
JetBlue
Wed 4/298:45 pm
SFO
- BOS
Nonstop5h 42m
JetBlue
Deal found 3/28![JetBlue logo]()
$268
This Expedia deal was found by Cheapflights users on 3/27. 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 4/156:00 am
BOS
- SFO
1 stop14h 34m
Multiple Airlines
Wed 4/227:00 am
SFO
- BOS
Nonstop5h 37m
Multiple Airlines
Deal found 3/27![Multiple Airlines logo]()
$269
This Frontier deal was found by Cheapflights users on 3/27. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/256:00 am
BOS
- SFO
1 stop14h 34m
Frontier
Sun 5/310:38 pm
SFO
- BOS
1 stop9h 47m
Frontier
Deal found 3/27![Frontier logo]()
$270
This Frontier deal was found by Cheapflights users on 3/26. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/256:00 am
BOS
- SFO
1 stop14h 34m
Frontier
Sat 5/210:38 pm
SFO
- BOS
1 stop9h 47m
Frontier
Deal found 3/26![Frontier logo]()
$271
This Frontier deal was found by Cheapflights users on 3/26. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/25:30 am
BOS
- SFO
1 stop16h 44m
Frontier
Sat 5/210:38 pm
SFO
- BOS
1 stop9h 47m
Frontier
Deal found 3/26![Frontier logo]()
$272
This Expedia deal was found by Cheapflights users on 3/29. 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.
Tue 4/286:00 am
BOS
- SFO
1 stop14h 34m
Multiple Airlines
Sat 5/27:59 pm
SFO
- BOS
1 stop16h 34m
Multiple Airlines
Deal found 3/29![Multiple Airlines logo]()
$273
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 March 30, 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 March 30, 2026.
This Southwest deal was found by Cheapflights users on 3/25. 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.
Mon 4/276:55 pm
BOS
- OAK
1 stop8h 30m
Southwest
Tue 5/511:55 pm
OAK
- BOS
1 stop8h 05m
Southwest
Deal found 3/25![Southwest logo]()
$257
This Delta deal was found by Cheapflights users on 3/25. 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 5/296:15 am
BOS
- SJC
1 stop10h 54m
Delta
Wed 6/35:45 pm
SJC
- BOS
1 stop10h 48m
Delta
Deal found 3/25![Delta logo]()
$291
This United Airlines deal was found by Cheapflights users on 3/29. 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.
Fri 5/16:00 am
BOS
- SFO
Nonstop6h 45m
United Airlines
Tue 5/512:30 pm
SFO
- BOS
Nonstop5h 57m
United Airlines
Deal found 3/29![United Airlines logo]()
$297
This JetBlue deal was found by Cheapflights users on 3/28. 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.
Tue 5/126:20 am
BOS
- SFO
Nonstop6h 45m
JetBlue
Tue 5/193:20 pm
SFO
- BOS
Nonstop5h 48m
JetBlue
Deal found 3/28![JetBlue logo]()
$297
This Alaska Airlines deal was found by Cheapflights users on 3/26. 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 5/27:00 am
BOS
- SJC
1 stop9h 50m
Alaska Airlines
Tue 5/510:24 am
SJC
- BOS
1 stop10h 35m
Alaska Airlines
Deal found 3/26![Alaska Airlines logo]()
$340
This Southwest deal was found by Cheapflights users on 3/25. 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 4/232:30 pm
BOS
- SFO
1 stop11h 50m
Southwest
Wed 4/297:15 pm
SFO
- BOS
2 stops9h 50m
Southwest
Deal found 3/25![Southwest logo]()
$280
This United Airlines deal was found by Cheapflights users on 3/26. 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.
Tue 5/124:52 pm
BOS
- SFO
1 stop8h 50m
United Airlines
Sat 5/1611:20 pm
SFO
- BOS
Nonstop6h 03m
United Airlines
Deal found 3/26![United Airlines logo]()
$307
This Delta deal was found by Cheapflights users on 3/28. 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 4/236:54 pm
BOS
- OAK
1 stop8h 00m
Delta
Fri 5/15:04 pm
OAK
- BOS
1 stop9h 56m
Delta
Deal found 3/28![Delta logo]()
$317
This Alaska Airlines deal was found by Cheapflights users on 3/25. 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.
Wed 5/278:05 am
BOS
- OAK
1 stop9h 09m
Alaska Airlines
Mon 6/16:02 am
OAK
- BOS
1 stop20h 42m
Alaska Airlines
Deal found 3/25![Alaska Airlines logo]()
$347
This Delta deal was found by Cheapflights users on 3/28. 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 5/56:54 pm
BOS
- OAK
1 stop8h 00m
Delta
Thu 5/75:05 pm
OAK
- BOS
1 stop10h 15m
Delta
Deal found 3/28![Delta logo]()
$317
This Southwest deal was found by Cheapflights users on 3/30. 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 5/92:20 pm
BOS
- SJC
1 stop9h 35m
Southwest
Mon 5/117:30 pm
SJC
- BOS
2 stops9h 45m
Southwest
Deal found 3/30![Southwest logo]()
$319
This KAYAK deal was found by Cheapflights users on 3/25. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/252:40 pm
BOS
- SFO
Nonstop6h 47m
JetBlue
Tue 4/288:45 pm
SFO
- BOS
Nonstop5h 42m
JetBlue
Deal found 3/25![JetBlue logo]()
$377
This Delta deal was found by Cheapflights users on 3/25. 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 5/286:10 am
BOS
- OAK
1 stop8h 38m
Delta
Thu 5/285:05 pm
OAK
- BOS
1 stop10h 15m
Delta
Deal found 3/25![Delta logo]()
$318
This Southwest deal was found by Cheapflights users on 3/29. 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 4/274:45 pm
BOS
- OAK
2 stops10h 40m
Southwest
Mon 5/411:55 pm
OAK
- BOS
1 stop8h 05m
Southwest
Deal found 3/29![Southwest logo]()
$322
This United Airlines deal was found by Cheapflights users on 3/26. 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 6/46:00 am
BOS
- SFO
1 stop8h 25m
United Airlines
Sun 6/149:25 pm
SFO
- BOS
Nonstop5h 56m
United Airlines
Deal found 3/26![United Airlines logo]()
$363
This JetBlue deal was found by Cheapflights users on 3/26. 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.
Sat 4/253:11 pm
BOS
- SFO
1 stop9h 46m
JetBlue
Sat 5/22:00 pm
SFO
- BOS
Nonstop5h 45m
JetBlue
Deal found 3/26![JetBlue logo]()
$379
This Alaska Airlines deal was found by Cheapflights users on 3/25. 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.
Wed 5/278:05 am
BOS
- OAK
1 stop9h 09m
Alaska Airlines
Fri 5/297:03 pm
OAK
- BOS
1 stop8h 17m
Alaska Airlines
Deal found 3/25![Alaska Airlines logo]()
$385
This Delta deal was found by Cheapflights users on 3/30. 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 4/236:54 pm
BOS
- OAK
1 stop8h 00m
Delta
Wed 4/295:04 pm
OAK
- BOS
1 stop9h 56m
Delta
Deal found 3/30![Delta logo]()
$332
This Southwest deal was found by Cheapflights users on 3/26. 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 6/103:45 pm
BOS
- OAK
1 stop10h 45m
Southwest
Wed 6/247:35 am
OAK
- BOS
1 stop12h 25m
Southwest
Deal found 3/26![Southwest logo]()
$332
This Alaska Airlines deal was found by Cheapflights users on 3/25. 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.
Fri 5/298:05 am
BOS
- SJC
1 stop9h 08m
Alaska Airlines
Wed 6/32:00 pm
SJC
- BOS
2 stops13h 20m
Alaska Airlines
Deal found 3/25![Alaska Airlines logo]()
$400
This United Airlines deal was found by Cheapflights users on 3/25. 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 4/255:30 am
BOS
- SFO
Nonstop6h 41m
United Airlines
Tue 4/2811:05 pm
SFO
- BOS
1 stop8h 10m
United Airlines
Deal found 3/25![United Airlines logo]()
$410
This Southwest deal was found by Cheapflights users on 3/25. 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.
Fri 5/17:20 am
BOS
- SJC
2 stops10h 45m
Southwest
Sun 5/310:55 pm
SJC
- BOS
1 stop9h 00m
Southwest
Deal found 3/25![Southwest logo]()
$346
This Delta deal was found by Cheapflights users on 3/25. 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 5/148:59 pm
BOS
- SFO
Nonstop6h 33m
Delta
Wed 9/210:00 pm
SFO
- BOS
Nonstop5h 54m
Delta
Deal found 3/25![Delta logo]()
$362
This Alaska Airlines deal was found by Cheapflights users on 3/26. 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 4/235:56 pm
BOS
- SFO
1 stop32h 05m
Alaska Airlines
Sat 5/99:00 am
SFO
- BOS
1 stop11h 59m
Alaska Airlines
Deal found 3/26![Alaska Airlines logo]()
$403
This United Airlines deal was found by Cheapflights users on 3/27. 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.
Sun 5/106:00 am
BOS
- SFO
Nonstop6h 45m
United Airlines
Fri 5/154:15 pm
SFO
- BOS
Nonstop5h 55m
United Airlines
Deal found 3/27![United Airlines logo]()
$421
This Southwest deal was found by Cheapflights users on 3/29. 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 6/45:30 pm
BOS
- SJC
1 stop8h 25m
Southwest
Mon 6/811:50 am
SJC
- BOS
1 stop8h 10m
Southwest
Deal found 3/29![Southwest logo]()
$357
This Delta deal was found by Cheapflights users on 3/29. 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.
Sun 4/266:15 am
BOS
- SJC
1 stop9h 08m
Delta
Sun 5/34:00 pm
SJC
- BOS
1 stop10h 30m
Delta
Deal found 3/29![Delta logo]()
$388
This Alaska Airlines deal was found by Cheapflights users on 3/28. 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 5/24:33 pm
BOS
- STS
1 stop9h 24m
Alaska Airlines
Tue 5/57:23 am
STS
- BOS
1 stop30h 30m
Alaska Airlines
Deal found 3/28![Alaska Airlines logo]()
$441
This Southwest deal was found by Cheapflights users on 3/29. 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 5/143:45 pm
BOS
- SJC
1 stop10h 15m
Southwest
Wed 5/206:15 am
SJC
- BOS
1 stop8h 30m
Southwest
Deal found 3/29![Southwest logo]()
$368
This Southwest deal was found by Cheapflights users on 3/28. 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 4/2911:40 am
BOS
- OAK
2 stops10h 10m
Southwest
Fri 5/17:30 pm
OAK
- BOS
2 stops9h 35m
Southwest
Deal found 3/28![Southwest logo]()
$372
Last-minute flights from Boston to San Francisco Bay AreaDiscover last-minute flight deals from Boston to San Francisco Bay Area. Data last updated March 30, 2026 and is based on user searches.
Discover last-minute flight deals from Boston to San Francisco Bay Area. Data last updated March 30, 2026 and is based on user searches.
This Expedia deal was found by Cheapflights users on 3/27. 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.
Tue 4/75:45 am
BOS
- SFO
1 stop16h 34m
Multiple Airlines
Fri 4/106:40 pm
SFO
- BOS
1 stop8h 13m
Multiple Airlines
Deal found 3/27![Multiple Airlines logo]()
$284
This CheapOair deal was found by Cheapflights users on 3/30. 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 4/75:45 am
BOS
- SFO
1 stop16h 34m
Multiple Airlines
Mon 4/1310:00 pm
SFO
- BOS
Nonstop5h 40m
Multiple Airlines
Deal found 3/30![Multiple Airlines logo]()
$299
This Frontier deal was found by Cheapflights users on 3/30. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/85:45 am
BOS
- SFO
1 stop16h 34m
Frontier
Mon 4/1310:03 pm
SFO
- BOS
1 stop10h 42m
Frontier
Deal found 3/30![Frontier logo]()
$280
This Expedia deal was found by Cheapflights users on 3/26. 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 4/95:30 am
BOS
- SFO
1 stop16h 49m
Multiple Airlines
Thu 4/162:00 pm
SFO
- BOS
Nonstop5h 45m
Multiple Airlines
Deal found 3/26![Multiple Airlines logo]()
$269
This CheapOair deal was found by Cheapflights users on 3/26. 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 4/95:30 am
BOS
- SFO
1 stop16h 49m
Multiple Airlines
Wed 4/158:45 pm
SFO
- BOS
Nonstop5h 42m
Multiple Airlines
Deal found 3/26![Multiple Airlines logo]()
$274
This Expedia deal was found by Cheapflights users on 3/27. 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 4/95:30 am
BOS
- SFO
1 stop16h 49m
Multiple Airlines
Sun 4/122:39 pm
SFO
- BOS
1 stop12h 14m
Multiple Airlines
Deal found 3/27![Multiple Airlines logo]()
$290
This Southwest deal was found by Cheapflights users on 3/26. 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 4/145:35 am
BOS
- SJC
1 stop8h 00m
Southwest
Thu 4/166:00 am
SJC
- BOS
1 stop9h 45m
Southwest
Deal found 3/26![Southwest logo]()
$279
This Southwest deal was found by Cheapflights users on 3/26. 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 4/226:20 pm
BOS
- OAK
1 stop8h 05m
Southwest
Wed 4/291:30 pm
OAK
- BOS
1 stop7h 35m
Southwest
Deal found 3/26![Southwest logo]()
$234
This American Airlines deal was found by Cheapflights users on 3/28. 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 4/258:00 am
BOS
- SJC
2 stops10h 47m
American Airlines
Sat 5/26:10 am
SJC
- BOS
2 stops11h 51m
American Airlines
Deal found 3/28![American Airlines logo]()
$282
This Southwest deal was found by Cheapflights users on 3/25. 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.
Mon 4/276:55 pm
BOS
- OAK
1 stop8h 30m
Southwest
Tue 5/511:55 pm
OAK
- BOS
1 stop8h 05m
Southwest
Deal found 3/25![Southwest logo]()
$257
This CheapOair deal was found by Cheapflights users on 3/26. 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.
Mon 4/275:56 pm
BOS
- SJC
1 stop18h 48m
Alaska Airlines
Mon 5/49:42 pm
SJC
- BOS
1 stop14h 51m
Alaska Airlines
Deal found 3/26![Alaska Airlines logo]()
$299
This Southwest deal was found by Cheapflights users on 3/29. 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 4/282:25 pm
BOS
- SJC
2 stops10h 45m
Southwest
Tue 5/511:25 am
SJC
- BOS
2 stops9h 40m
Southwest
Deal found 3/29![Southwest logo]()
$281
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 March 30, 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 March 30, 2026.
This Southwest deal was found by Cheapflights users on 3/26. 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 5/132:25 pm
BOS
- SJC
1 stop9h 05m
Southwest
Deal found 3/26![Southwest logo]()
$117
This Delta deal was found by Cheapflights users on 3/26. 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 6/26:10 am
BOS
- SJC
1 stop9h 38m
Delta
Deal found 3/26![Delta logo]()
$129
This Southwest deal was found by Cheapflights users on 3/29. 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 4/251:50 pm
BOS
- SJC
1 stop9h 05m
Southwest
Deal found 3/29![Southwest logo]()
$136
This Southwest deal was found by Cheapflights users on 3/25. 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 4/142:30 pm
BOS
- SJC
1 stop9h 35m
Southwest
Deal found 3/25![Southwest logo]()
$140
This American Airlines deal was found by Cheapflights users on 3/29. 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 4/258:00 am
BOS
- SJC
2 stops10h 47m
American Airlines
Deal found 3/29![American Airlines logo]()
$141
This Kiwi.com deal was found by Cheapflights users on 3/28. 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.
Sat 4/256:30 am
BOS
- SFO
2 stops29h 43m
Multiple Airlines
Deal found 3/28![Multiple Airlines logo]()
$142
This Super.com deal was found by Cheapflights users on 3/30. 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.
Wed 5/1312:01 pm
BOS
- SFO
1 stop10h 33m
Frontier
Deal found 3/30![Frontier logo]()
$143
This Kiwi.com deal was found by Cheapflights users on 3/30. 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.
Tue 4/216:00 pm
BOS
- SFO
2 stops26h 34m
Multiple Airlines
Deal found 3/30![Multiple Airlines logo]()
$144
This Priceline deal was found by Cheapflights users on 3/26. 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 5/1512:01 pm
BOS
- SFO
1 stop10h 33m
Frontier
Deal found 3/26![Frontier logo]()
$145
This Southwest deal was found by Cheapflights users on 3/27. 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 5/305:25 am
BOS
- SJC
2 stops12h 45m
Southwest
Deal found 3/27![Southwest logo]()
$145
This Frontier deal was found by Cheapflights users on 3/26. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2712:01 pm
BOS
- SFO
1 stop10h 33m
Frontier
Deal found 3/26![Frontier logo]()
$146
This Super.com deal was found by Cheapflights users on 3/29. 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.
Sat 4/258:19 pm
BOS
- SFO
Nonstop6h 40m
JetBlue
Deal found 3/29![JetBlue logo]()
$147
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 March 30, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $234 (Southwest) |
One-way from | $117 (Southwest) |
Popular in | December |
Cheapest in | September |
Average price | $392 |
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 March 30, 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
BostonOakland
BOS - OAK
BOSOAK
Boston Logan Intl
Mon 4/27
6:55 pm-12:25 am
1 stop8h 30m
Oakland
Tue 5/5
11:55 pm-11:00 am
1 stop8h 05m
$257
BostonSan Francisco
BOS - SFO
BOSSFO
Boston Logan Intl
Thu 4/23
2:30 pm-11:20 pm
1 stop11h 50m
San Francisco
Wed 4/29
7:15 pm-8:05 am
2 stops9h 50m
$280
BostonSan Jose
BOS - SJC
BOSSJC
Boston Logan Intl
Fri 5/29
6:15 am-2:09 pm
1 stop10h 54m
San Jose
Wed 6/3
5:45 pm-7:33 am
1 stop10h 48m
$291
BostonSan Francisco
BOS - SFO
BOSSFO
Boston Logan Intl
Fri 5/1
6:00 am-9:45 am
Nonstop6h 45m
San Francisco
Tue 5/5
12:30 pm-9:27 pm
Nonstop5h 57m
$297
BostonSan Francisco
BOS - SFO
BOSSFO
Boston Logan Intl
Tue 5/12
6:20 am-10:05 am
Nonstop6h 45m
San Francisco
Tue 5/19
3:20 pm-12:08 am
Nonstop5h 48m
$297
BostonSan Francisco
BOS - SFO
BOSSFO
Boston Logan Intl
Tue 5/12
4:52 pm-10:42 pm
1 stop8h 50m
San Francisco
Sat 5/16
11:20 pm-8:23 am
Nonstop6h 03m
$307
BostonOakland
BOS - OAK
BOSOAK
Boston Logan Intl
Thu 4/23
6:54 pm-11:54 pm
1 stop8h 00m
Oakland
Fri 5/1
5:04 pm-6:00 am
1 stop9h 56m
$317
BostonOakland
BOS - OAK
BOSOAK
Boston Logan Intl
Tue 5/5
6:54 pm-11:54 pm
1 stop8h 00m
Oakland
Thu 5/7
5:05 pm-6:20 am
1 stop10h 15m
$317
BostonOakland
BOS - OAK
BOSOAK
Boston Logan Intl
Thu 5/28
6:10 am-11:48 am
1 stop8h 38m
Oakland
Thu 5/28
5:05 pm-6:20 am
1 stop10h 15m
$318
BostonSan Jose
BOS - SJC
BOSSJC
Boston Logan Intl
Sat 5/9
2:20 pm-8:55 pm
1 stop9h 35m
San Jose
Mon 5/11
7:30 pm-8:15 am
2 stops9h 45m
$319
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-STS
BOS-OAK
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-STS
BOS-OAK
What is the cheapest month to book a flight from Boston to San Francisco Bay Area?
Currently, November is the cheapest month in which you can book a flight from Boston to San Francisco Bay Area (average of $149). Flying from Boston to San Francisco Bay Area in January is currently the most expensive (average of $197). 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 March 30, 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 59% on the cost of your flight, compared to a flight at noon.
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 March 28, 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 afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
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 March 30, 2026.
The most flights from BOS to zzXIH are scheduled on a Monday (44 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (16 on average).
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 March 30, 2026.
See what other customers who have flown with Alaska Airlines,Delta, andUnited Airlines 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.
Food
7.0
Crew
8.5
Overall
7.9
Comfort
7.8
Entertainment
7.0
Boarding
8.1
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Food
7.0
Crew
8.5
Overall
7.9
Comfort
7.8
Entertainment
7.0
Boarding
8.1
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Food
7.0
Crew
8.5
Overall
7.9
Comfort
7.8
Entertainment
7.0
Boarding
8.1
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Food
7.0
Crew
8.5
Overall
7.9
Comfort
7.8
Entertainment
7.0
Boarding
8.1
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Food
7.0
Crew
8.5
Overall
7.9
Comfort
7.8
Entertainment
7.0
Boarding
8.1
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Food
7.0
Crew
8.5
Overall
7.9
Comfort
7.8
Entertainment
7.0
Boarding
8.1
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.
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Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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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 March 30, 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 March 30, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$119 | Average$238 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$129 | Average$303 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$153 | Average$411 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$157 | Average$383 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$172 | Average$345 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$177 | Average$418 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$207 | Average$334 | FlexibilityNo cancel fee | On-time83% | |
| Cheapest$224 | Average$388 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$246 | Average$495 | FlexibilityNo cancel fee | On-time71% |