$129+ Cheap flights from San Diego to Boston (SAN - BOS)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/10. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — BOS
Oct 17 — Oct 241
Round-trip
1 adult, Economy
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Find cheap flights from San Diego to Boston 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.Cheapflights Tip: The best prices from San Diego to Boston Logan Intl are usually found in January or October, booked 81 days in advance, depart on a Saturday or Wednesday and return on a Wednesday
Cheap flight deals from San Diego to Boston
Cheapest
Best
Last-minute
One-way
Cheapest flights from San Diego to BostonExplore the most affordable flight options available from San Diego to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2026.
Explore the most affordable flight options available from San Diego to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2026.
This Southwest deal was found by Cheapflights users on 9/14. 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 10/279:20 am -
Nonstop5h 30m
Tue 11/38:25 am -
Nonstop6h 20m
Deal found 9/14![Southwest logo]()
$236
This Delta deal was found by Cheapflights users on 9/15. 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 11/89:53 pm -
Nonstop5h 42m
Wed 11/115:10 pm -
Nonstop6h 30m
Deal found 9/15![Delta logo]()
$237
This Southwest deal was found by Cheapflights users on 9/15. 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 11/1711:25 am -
Nonstop5h 25m
Tue 12/12:35 pm -
1 stop9h 35m
Deal found 9/15![Southwest logo]()
$238
This Southwest deal was found by Cheapflights users on 9/14. 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 10/219:50 pm -
1 stop7h 20m
Fri 10/235:15 am -
1 stop8h 15m
Deal found 9/14![Southwest logo]()
$239
This JetBlue deal was found by Cheapflights users on 9/16. 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 10/238:20 pm -
Nonstop6h 06m
Tue 10/271:00 pm -
1 stop10h 25m
Deal found 9/16![JetBlue logo]()
$240
This Southwest deal was found by Cheapflights users on 9/14. 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 10/2610:40 pm -
1 stop7h 55m
Thu 10/2910:50 am -
Nonstop6h 15m
Deal found 9/14![Southwest logo]()
$241
This JetBlue deal was found by Cheapflights users on 9/16. 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 11/19:40 pm -
1 stop10h 01m
Sat 11/141:00 pm -
1 stop10h 22m
Deal found 9/16![JetBlue logo]()
$242
This Southwest deal was found by Cheapflights users on 9/16. 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 10/2312:45 pm -
2 stops9h 30m
Tue 10/272:50 pm -
1 stop9h 35m
Deal found 9/16![Southwest logo]()
$244
This Delta deal was found by Cheapflights users on 9/15. 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.
Wed 11/49:53 pm -
Nonstop5h 42m
Wed 11/116:45 pm -
1 stop8h 08m
Deal found 9/15![Delta logo]()
$247
This Southwest deal was found by Cheapflights users on 9/15. 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 11/311:25 am -
Nonstop5h 20m
Thu 11/58:15 am -
Nonstop6h 25m
Deal found 9/15![Southwest logo]()
$248
This Southwest deal was found by Cheapflights users on 9/14. 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 10/292:10 pm -
1 stop8h 05m
Thu 11/54:20 pm -
1 stop10h 30m
Deal found 9/14![Southwest logo]()
$251
Best flights from San Diego to BostonDiscover carefully curated flight deals from San Diego to Boston that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 17, 2026.
Discover carefully curated flight deals from San Diego to Boston that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 17, 2026.
This JetBlue deal was found by Cheapflights users on 9/12. 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 10/279:40 pm -
1 stop10h 01m
Sat 10/313:50 pm -
Nonstop6h 24m
Deal found 9/12![JetBlue logo]()
$277
This Delta deal was found by Cheapflights users on 9/15. 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 10/1910:25 pm -
1 stop8h 19m
Mon 10/267:55 am -
1 stop13h 07m
Deal found 9/15![Delta logo]()
$289
This Southwest deal was found by Cheapflights users on 9/15. 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.
Sun 11/1510:35 pm -
1 stop8h 10m
Thu 11/191:20 pm -
1 stop10h 40m
Deal found 9/15![Southwest logo]()
$294
This United Airlines deal was found by Cheapflights users on 9/15. 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 11/192:08 pm -
1 stop7h 38m
Mon 11/237:15 am -
1 stop9h 09m
Deal found 9/15![United Airlines logo]()
$313
This JetBlue deal was found by Cheapflights users on 9/14. 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 12/310:35 am -
1 stop10h 42m
Mon 12/74:45 pm -
Nonstop6h 34m
Deal found 9/14![JetBlue logo]()
$294
This Southwest deal was found by Cheapflights users on 9/13. 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.
Sun 10/1810:40 pm -
1 stop9h 30m
Sat 10/241:40 pm -
Nonstop6h 15m
Deal found 9/13![Southwest logo]()
$307
This JetBlue deal was found by Cheapflights users on 9/11. 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.
Mon 10/269:40 pm -
1 stop10h 01m
Mon 11/27:00 am -
Nonstop6h 31m
Deal found 9/11![JetBlue logo]()
$297
This Southwest deal was found by Cheapflights users on 9/13. 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 10/176:30 am -
1 stop10h 20m
Sat 10/245:15 am -
2 stops10h 05m
Deal found 9/13![Southwest logo]()
$308
This JetBlue deal was found by Cheapflights users on 9/14. 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.
Mon 11/1611:41 am -
Nonstop5h 48m
Wed 12/25:45 am -
1 stop8h 38m
Deal found 9/14![JetBlue logo]()
$297
This JetBlue deal was found by Cheapflights users on 9/13. 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 10/208:20 pm -
Nonstop6h 06m
Fri 10/231:12 pm -
1 stop9h 44m
Deal found 9/13![JetBlue logo]()
$305
This Southwest deal was found by Cheapflights users on 9/11. 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 11/69:55 pm -
1 stop7h 15m
Mon 11/95:00 am -
2 stops9h 30m
Deal found 9/11![Southwest logo]()
$342
This Southwest deal was found by Cheapflights users on 9/14. 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 11/145:45 pm -
2 stops11h 20m
Mon 11/163:30 pm -
2 stops10h 40m
Deal found 9/14![Southwest logo]()
$347
Last-minute flights from San Diego to BostonDiscover last-minute flight deals from San Diego to Boston. Data last updated September 17, 2026 and is based on user searches.
Discover last-minute flight deals from San Diego to Boston. Data last updated September 17, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 9/15. 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 9/2210:04 pm -
Nonstop5h 36m
Tue 10/65:15 pm -
1 stop9h 27m
Deal found 9/15![Delta logo]()
$424
This Southwest deal was found by Cheapflights users on 9/15. 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 9/233:55 pm -
Nonstop5h 35m
Tue 10/64:15 pm -
1 stop9h 55m
Deal found 9/15![Southwest logo]()
$394
This United Airlines deal was found by Cheapflights users on 9/15. 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 9/232:15 pm -
1 stop7h 55m
Tue 10/610:07 am -
1 stop8h 33m
Deal found 9/15![United Airlines logo]()
$398
This American Airlines deal was found by Cheapflights users on 9/16. 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 9/236:15 am -
1 stop8h 20m
Tue 10/63:31 pm -
1 stop9h 02m
Deal found 9/16![American Airlines logo]()
$403
This Alaska Airlines deal was found by Cheapflights users on 9/15. 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 9/239:31 am -
1 stop11h 23m
Tue 10/67:51 am -
Nonstop6h 18m
Deal found 9/15![Alaska Airlines logo]()
$426
This Southwest deal was found by Cheapflights users on 9/11. 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 9/253:55 pm -
Nonstop5h 35m
Tue 9/292:10 pm -
1 stop9h 30m
Deal found 9/11![Southwest logo]()
$387
This American Airlines deal was found by Cheapflights users on 9/12. 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.
Fri 9/2510:46 pm -
1 stop7h 53m
Mon 9/285:45 pm -
1 stop8h 40m
Deal found 9/12![American Airlines logo]()
$417
This Delta deal was found by Cheapflights users on 9/12. 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.
Sat 9/2610:04 pm -
Nonstop5h 36m
Sat 10/35:15 pm -
Nonstop6h 05m
Deal found 9/12![Delta logo]()
$367
This American Airlines deal was found by Cheapflights users on 9/12. 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 9/2610:04 am -
1 stop9h 23m
Tue 9/296:00 am -
1 stop9h 15m
Deal found 9/12![American Airlines logo]()
$377
This Alaska Airlines deal was found by Cheapflights users on 9/12. 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 9/2611:06 am -
1 stop16h 03m
Sat 10/37:51 am -
Nonstop6h 18m
Deal found 9/12![Alaska Airlines logo]()
$397
This Alaska Airlines deal was found by Cheapflights users on 9/12. 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 9/266:12 pm -
1 stop8h 57m
Wed 9/308:00 am -
Nonstop6h 12m
Deal found 9/12![Alaska Airlines logo]()
$407
One-way flights from San Diego to BostonSearch for one-way flight options from San Diego to Boston. Find affordable one-way fares based on user searches. Data last updated September 17, 2026.
Search for one-way flight options from San Diego to Boston. Find affordable one-way fares based on user searches. Data last updated September 17, 2026.
This JetBlue deal was found by Cheapflights users on 9/12. 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 11/109:40 pm -
1 stop10h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![JetBlue logo]()
$129
This Southwest deal was found by Cheapflights users on 9/16. 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 10/2912:45 pm -
2 stops9h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Southwest logo]()
$131
This Southwest deal was found by Cheapflights users on 9/16. 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 10/199:50 pm -
1 stop9h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Southwest logo]()
$133
This Southwest deal was found by Cheapflights users on 9/16. 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 12/167:05 am -
2 stops8h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Southwest logo]()
$134
This KAYAK deal was found by Cheapflights users on 9/14. 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.
Wed 10/148:25 pm -
Nonstop6h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![JetBlue logo]()
$135
This Southwest deal was found by Cheapflights users on 9/13. 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 11/29:25 am -
Nonstop5h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![Southwest logo]()
$136
This Super.com deal was found by Cheapflights users on 9/12. 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.
Tue 10/278:26 pm -
Nonstop5h 34m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![JetBlue logo]()
$137
This United Airlines deal was found by Cheapflights users on 9/16. 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 10/219:45 am -
1 stop8h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![United Airlines logo]()
$138
This Delta deal was found by Cheapflights users on 9/13. 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.
Wed 11/1110:17 pm -
Nonstop5h 23m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![Delta logo]()
$139
This Southwest deal was found by Cheapflights users on 9/14. 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 10/309:50 pm -
1 stop10h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Southwest logo]()
$140
This JetBlue deal was found by Cheapflights users on 9/16. 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.
Wed 11/2512:30 pm -
1 stop8h 23m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![JetBlue logo]()
$144
This Southwest deal was found by Cheapflights users on 9/15. 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 10/2312:45 pm -
2 stops9h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Southwest logo]()
$145
Find flight deals from San Diego to Boston
Discover tips and strategies to find the most affordable flight options for your journey from San Diego (SAN) to Boston (BOS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 17, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $236 (Southwest) |
One-way from | $129 (JetBlue) |
Popular in | December |
Cheapest in | January |
Average price | $342 |
Good round-trip deal | $304 or less |
Good one-way deal | $180 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from San Diego to Boston 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 7,457,451 searches. Data last updated September 17, 2026.
Use the filters below to find and compare flights from San Diego to Boston that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
San DiegoBoston
SAN San Diego - BOS Boston Logan Intl
SANBOS
San Diego
Thu 11/5
12:10 pm-11:25 pm
2 stops8h 15m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$138
San DiegoBoston
SAN San Diego - BOS Boston Logan Intl
SANBOS
San Diego
Fri 10/23
12:45 pm-1:15 am
2 stops9h 30m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$145
San DiegoBoston
SAN San Diego - BOS Boston Logan Intl
SANBOS
San Diego
Fri 12/11
4:08 pm-5:40 am
1 stop10h 32m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$169
San DiegoBoston
SAN San Diego - BOS Boston Logan Intl
SANBOS
San Diego
Sat 11/7
6:30 pm-8:05 am
2 stops10h 35m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$174
Quickest round-trip
San DiegoBoston
SAN San Diego - BOS Boston Logan Intl
SANBOS
San Diego
Sat 10/3
10:04 pm-6:40 am
Nonstop5h 36m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$179
San DiegoBoston
SAN San Diego - BOS Boston Logan Intl
SANBOS
San Diego
Thu 11/19
6:30 am-9:45 pm
2 stops12h 15m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$180
San DiegoBoston
SAN San Diego - BOS Boston Logan Intl
SANBOS
San Diego
Wed 10/7
8:34 pm-5:21 am
Nonstop5h 47m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$187
San DiegoBoston
SAN San Diego - BOS Boston Logan Intl
SANBOS
San Diego
Tue 12/15
6:50 am-9:59 pm
2 stops12h 09m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$188
San DiegoBoston
SAN San Diego - BOS Boston Logan Intl
SANBOS
San Diego
Tue 10/27
9:45 pm-10:51 am
2 stops10h 06m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$188
San DiegoBoston
SAN San Diego - BOS Boston Logan Intl
SANBOS
San Diego
Sat 10/31
6:45 am-12:46 am
3 stops15h 01m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$193
Showing 1-10 of 24 resultsSorted by cheapest first
Compare providers for flights from San Diego to Boston
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Diego to Boston in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*1 star |
- Most accurate provider: When it comes to deals on San Diego-Boston flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Diego-Boston flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Diego-Boston flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on San Diego-Boston flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Diego-Boston flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from San Diego to Boston
Have a flexible travel schedule? Discover the best time to fly to Boston from San Diego with our price prediction graph.
SAN-BOS
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 San Diego to Boston
Prices
Airlines
Delays
How far ahead should I book a flight from San Diego to Boston?
To ensure you get the cheapest price possible for a flight from San Diego to Boston, you should look to book at least 80 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest month to book a flight from San Diego to Boston?
Currently, January is the cheapest month in which you can book a flight from San Diego to Boston (average of $298). Flying from San Diego to Boston in December is currently the most expensive (average of $444). 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 SAN to BOS?
Find hourly flight availability from San Diego to Boston. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 17, 2026.
When flying from San Diego to Boston, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 25% versus a flight in the morning.
What is the cheapest day to fly from San Diego to Boston?
Use this chart to determine the cheapest time to fly round-trip from San Diego to Boston. Price data was last updated on September 12, 2026.
Travelers seeking maximum savings on their San Diego to Boston flight should consider departing on Saturday 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.
How often are flights from San Diego to Boston delayed?
About 19% of weekly flights between San Diego and Boston have experienced delays in the past year, with the average delay time being 172 minutes.
What is the most punctual flight time for San Diego to Boston flights?
Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Saturday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on San Diego to Boston flights?
Over the last year, Delta have had the lowest number of delays on this route, with just 12% of flights being delayed.
The best insider tips for San Diego to Boston flights
AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your San Diego to Boston trip
Our travel experts
Reviews of airlines servicing Boston
Get insights into the airlines that provide service to Boston. 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 Boston. Reviews last updated September 17, 2026.
Peruse reviews from past customers who have flown with Southwest,Alaska Airlines, andDelta from San Diego to Boston to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.0
Entertainment
7.5
Crew
8.6
Boarding
8.1
Overall
8.0
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Food
7.0
Entertainment
7.5
Crew
8.6
Boarding
8.1
Overall
8.0
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Food
7.0
Entertainment
7.5
Crew
8.6
Boarding
8.1
Overall
8.0
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Food
7.0
Entertainment
7.5
Crew
8.6
Boarding
8.1
Overall
8.0
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Food
7.0
Entertainment
7.5
Crew
8.6
Boarding
8.1
Overall
8.0
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Food
7.0
Entertainment
7.5
Crew
8.6
Boarding
8.1
Overall
8.0
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Related info for your journey
Find useful and relevant information for your journey from San Diego to Boston. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Boston?
Book flights to Boston if you plan to visit one of these locationsWaltham
Randolph
Concord
Cambridge
Brockton
Dedham
Cranston
Revere
Warwick
Pawtucket
Peabody
Auburn
Londonderry
York Beach
Fitchburg
North Falmouth
Swansea
Chelsea
Braintree
Sandwich
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Alternative routes for San Diego to Boston
See prices for flight routes from nearby airports that may be better suited for you.
Other flights to Boston
Explore flights to Boston departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 17, 2026.
Complete your trip
Complete your trip to Boston by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from San Diego to Boston by cabin class
Find flights from San Diego to Boston, based on your preferred cabin class, be it economy, premium economy, business, or first class.
San Diego and Boston flights
Browse other San Diego and Boston flight options. Last updated on September 17, 2026.
Other flights from San Diego
Browse through other flights departing from San Diego. Flights are based on user searches made on Cheapflights and were last updated on September 17, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 7 airlines flying from San Diego to Boston
Discover the top 7 airlines that operate flights from San Diego to Boston. 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 7,457,451 searches. Data last updated September 17, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$135 | Average$336 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$155 | Average$360 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$168 | Average$418 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$198 | Average$403 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$222 | Average$420 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$245 | Average$399 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$256 | Average$465 | FlexibilityNo cancel fee | On-time71% |