$129+ Cheap flights from San Diego to Boston (SAN - BOS)
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 9/14. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — BOS
Sep 19 — Sep 261
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 October or January, booked 90 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 August 20, 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 August 20, 2026.
This Delta deal was found by Cheapflights users on 8/20. 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 9/1910:04 pm -
Nonstop5h 36m
Sat 9/265:10 pm -
Nonstop6h 05m
Deal found 8/20![Delta logo]()
$239
This Alaska Airlines deal was found by Cheapflights users on 8/19. 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 9/28:25 am -
Nonstop5h 47m
Thu 9/106:17 pm -
Nonstop6h 13m
Deal found 8/19![Alaska Airlines logo]()
$242
This Cheapflightsfares deal was found by Cheapflights users on 8/16. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/221:17 pm -
Nonstop6h 08m
Tue 10/273:35 pm -
Nonstop6h 19m
Deal found 8/16![JetBlue logo]()
$245
This Delta deal was found by Cheapflights users on 8/18. 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 9/910:04 pm -
Nonstop5h 36m
Wed 9/235:10 pm -
Nonstop6h 05m
Deal found 8/18![Delta logo]()
$247
This Trip.com deal was found by Cheapflights users on 8/19. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/308:41 pm -
Nonstop5h 47m
Tue 11/37:03 am -
Nonstop6h 31m
Deal found 8/19![Alaska Airlines logo]()
$251
This United Airlines deal was found by Cheapflights users on 8/18. 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 9/192:15 pm -
1 stop7h 55m
Sat 9/263:54 pm -
1 stop8h 30m
Deal found 8/18![United Airlines logo]()
$252
This Super.com deal was found by Cheapflights users on 8/18. 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 10/68:25 pm -
Nonstop6h 06m
Sun 10/186:35 am -
Nonstop6h 17m
Deal found 8/18![JetBlue logo]()
$254
This Cheapflightsfares deal was found by Cheapflights users on 8/16. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/221:17 pm -
Nonstop6h 08m
Mon 10/266:30 am -
Nonstop6h 35m
Deal found 8/16![JetBlue logo]()
$255
This United Airlines deal was found by Cheapflights users on 8/17. 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 9/2610:20 pm -
1 stop7h 27m
Tue 9/296:00 am -
1 stop8h 25m
Deal found 8/17![United Airlines logo]()
$257
This American Airlines deal was found by Cheapflights users on 8/17. 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 9/197:32 am -
1 stop8h 58m
Sat 9/2610:30 am -
1 stop9h 59m
Deal found 8/17![American Airlines logo]()
$258
This Alaska Airlines deal was found by Cheapflights users on 8/17. 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 9/108:59 pm -
Nonstop5h 48m
Tue 9/158:00 am -
Nonstop6h 12m
Deal found 8/17![Alaska Airlines logo]()
$260
This American Airlines deal was found by Cheapflights users on 8/18. 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 10/36:15 am -
1 stop10h 15m
Sat 10/104:48 pm -
1 stop9h 45m
Deal found 8/18![American Airlines logo]()
$261
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 August 20, 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 August 20, 2026.
This Southwest deal was found by Cheapflights users on 8/16. 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 9/163:55 pm -
Nonstop5h 35m
Sat 9/195:00 am -
1 stop7h 50m
Deal found 8/16![Southwest logo]()
$257
This United Airlines deal was found by Cheapflights users on 8/19. 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 9/2610:20 pm -
1 stop7h 27m
Tue 9/296:00 am -
1 stop8h 25m
Deal found 8/19![United Airlines logo]()
$257
This Delta deal was found by Cheapflights users on 8/19. 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
Tue 9/295:10 pm -
Nonstop6h 05m
Deal found 8/19![Delta logo]()
$285
This Alaska Airlines deal was found by Cheapflights users on 8/15. 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.
Fri 10/302:59 pm -
1 stop13h 27m
Wed 11/47:03 am -
Nonstop6h 31m
Deal found 8/15![Alaska Airlines logo]()
$295
This Southwest deal was found by Cheapflights users on 8/19. 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 9/163:55 pm -
Nonstop5h 35m
Wed 9/231:20 pm -
1 stop9h 15m
Deal found 8/19![Southwest logo]()
$257
This United Airlines deal was found by Cheapflights users on 8/16. 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.
Fri 1/1510:30 pm -
1 stop7h 54m
Tue 1/194:57 pm -
1 stop8h 31m
Deal found 8/16![United Airlines logo]()
$290
This Southwest deal was found by Cheapflights users on 8/19. 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 9/91:40 pm -
1 stop7h 30m
Sat 9/122:10 pm -
Nonstop6h 00m
Deal found 8/19![Southwest logo]()
$267
This Alaska Airlines deal was found by Cheapflights users on 8/20. 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 9/108:59 pm -
Nonstop5h 48m
Thu 9/177:59 pm -
1 stop17h 47m
Deal found 8/20![Alaska Airlines logo]()
$347
This Delta deal was found by Cheapflights users on 8/15. 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 9/710:02 pm -
Nonstop5h 38m
Fri 9/115:10 pm -
Nonstop6h 05m
Deal found 8/15![Delta logo]()
$350
This Southwest deal was found by Cheapflights users on 8/18. 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 11/1210:40 pm -
1 stop9h 30m
Mon 11/163:30 pm -
2 stops10h 35m
Deal found 8/18![Southwest logo]()
$292
This Southwest deal was found by Cheapflights users on 8/16. 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.
Tue 9/293:55 pm -
Nonstop5h 35m
Mon 10/55:10 pm -
1 stop10h 00m
Deal found 8/16![Southwest logo]()
$307
Last-minute flights from San Diego to BostonDiscover last-minute flight deals from San Diego to Boston. Data last updated August 20, 2026 and is based on user searches.
Discover last-minute flight deals from San Diego to Boston. Data last updated August 20, 2026 and is based on user searches.
This Alaska Airlines deal was found by Cheapflights users on 8/19. 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 9/28:25 am -
Nonstop5h 47m
Thu 9/106:17 pm -
Nonstop6h 13m
Deal found 8/19![Alaska Airlines logo]()
$242
This Delta deal was found by Cheapflights users on 8/18. 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 9/910:04 pm -
Nonstop5h 36m
Wed 9/235:10 pm -
Nonstop6h 05m
Deal found 8/18![Delta logo]()
$247
This United Airlines deal was found by Cheapflights users on 8/18. 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 9/92:15 pm -
1 stop7h 55m
Wed 9/233:45 pm -
1 stop8h 39m
Deal found 8/18![United Airlines logo]()
$262
This Alaska Airlines deal was found by Cheapflights users on 8/17. 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 9/108:59 pm -
Nonstop5h 48m
Tue 9/158:00 am -
Nonstop6h 12m
Deal found 8/17![Alaska Airlines logo]()
$260
This FlightHub deal was found by Cheapflights users on 8/18. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/108:20 pm -
Nonstop5h 55m
Tue 9/158:00 am -
Nonstop6h 12m
Deal found 8/18![Multiple Airlines logo]()
$264
This Cheapflightsfares deal was found by Cheapflights users on 8/16. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/188:20 pm -
Nonstop5h 55m
Tue 9/223:41 pm -
Nonstop6h 05m
Deal found 8/16![JetBlue logo]()
$255
This Delta deal was found by Cheapflights users on 8/20. 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 9/1910:04 pm -
Nonstop5h 36m
Sat 9/265:10 pm -
Nonstop6h 05m
Deal found 8/20![Delta logo]()
$239
This United Airlines deal was found by Cheapflights users on 8/18. 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 9/192:15 pm -
1 stop7h 55m
Sat 9/263:54 pm -
1 stop8h 30m
Deal found 8/18![United Airlines logo]()
$252
This American Airlines deal was found by Cheapflights users on 8/17. 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 9/197:32 am -
1 stop8h 58m
Sat 9/2610:30 am -
1 stop9h 59m
Deal found 8/17![American Airlines logo]()
$258
This Super.com deal was found by Cheapflights users on 8/17. 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.
Mon 9/218:20 pm -
Nonstop5h 55m
Tue 9/294:00 pm -
Nonstop6h 07m
Deal found 8/17![JetBlue logo]()
$245
This Southwest deal was found by Cheapflights users on 8/19. 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 9/223:55 pm -
Nonstop5h 35m
Thu 10/12:35 pm -
1 stop12h 35m
Deal found 8/19![Southwest logo]()
$263
This United Airlines deal was found by Cheapflights users on 8/17. 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 9/2610:20 pm -
1 stop7h 27m
Tue 9/296:00 am -
1 stop8h 25m
Deal found 8/17![United Airlines logo]()
$257
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 August 20, 2026.
Search for one-way flight options from San Diego to Boston. Find affordable one-way fares based on user searches. Data last updated August 20, 2026.
This Delta deal was found by Cheapflights users on 8/17. 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 9/1410:04 pm -
Nonstop5h 36m
Deal found 8/17![Delta logo]()
$129
This Kiwi.com deal was found by Cheapflights users on 8/19. 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 9/196:25 am -
2 stops25h 33m
Deal found 8/19![Frontier logo]()
$130
This Booking.com deal was found by Cheapflights users on 8/18. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/228:34 pm -
Nonstop5h 47m
Deal found 8/18![Alaska Airlines logo]()
$131
This Jetabroad deal was found by Cheapflights users on 8/16. 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 Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/59:30 pm -
1 stop7h 22m
Deal found 8/16![JetBlue logo]()
$132
This Trip.com deal was found by Cheapflights users on 8/18. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/188:59 pm -
Nonstop5h 48m
Deal found 8/18![Alaska Airlines logo]()
$133
This Southwest deal was found by Cheapflights users on 8/19. 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 11/108:05 pm -
2 stops9h 15m
Deal found 8/19![Southwest logo]()
$134
This Jetabroad deal was found by Cheapflights users on 8/18. 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 Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/169:40 pm -
Nonstop5h 25m
Deal found 8/18![JetBlue logo]()
$135
This Super.com deal was found by Cheapflights users on 8/15. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/98:40 pm -
Nonstop5h 44m
Deal found 8/15![JetBlue logo]()
$136
This Cheapflightsfares deal was found by Cheapflights users on 8/16. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/18:40 pm -
Nonstop5h 31m
Deal found 8/16![JetBlue logo]()
$137
This Kiwi.com deal was found by Cheapflights users on 8/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/166:25 am -
2 stops24h 57m
Deal found 8/16![Frontier logo]()
$138
This Southwest deal was found by Cheapflights users on 8/18. 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 9/183:55 pm -
Nonstop5h 35m
Deal found 8/18![Southwest logo]()
$139
This Cheapflightsfares deal was found by Cheapflights users on 8/16. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/2511:41 am -
Nonstop5h 38m
Deal found 8/16![JetBlue logo]()
$140
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 August 20, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $242 (Alaska Airlines) |
One-way from | $129 (Delta) |
Popular in | December |
Cheapest in | October |
Average price | $361 |
Good round-trip deal | $270 or less |
Good one-way deal | $176 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 August 20, 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
Wed 9/16
3:55 pm-12:30 am
Nonstop5h 35m
Boston Logan Intl
Sat 9/19
5:00 am-9:50 am
1 stop7h 50m
$257
San DiegoBoston
SAN San Diego - BOS Boston Logan Intl
SANBOS
San Diego
Sat 9/26
10:20 pm-8:47 am
1 stop7h 27m
Boston Logan Intl
Tue 9/29
6:00 am-11:25 am
1 stop8h 25m
$257
San DiegoBoston
SAN San Diego - BOS Boston Logan Intl
SANBOS
San Diego
Wed 9/16
3:55 pm-12:30 am
Nonstop5h 35m
Boston Logan Intl
Wed 9/23
1:20 pm-7:35 pm
1 stop9h 15m
$257
San DiegoBoston
SAN San Diego - BOS Boston Logan Intl
SANBOS
San Diego
Wed 9/9
1:40 pm-12:10 am
1 stop7h 30m
Boston Logan Intl
Sat 9/12
2:10 pm-5:10 pm
Nonstop6h 00m
$267
Quickest round-trip
San DiegoBoston
SAN San Diego - BOS Boston Logan Intl
SANBOS
San Diego
Sat 9/26
10:04 pm-6:40 am
Nonstop5h 36m
Boston Logan Intl
Tue 9/29
5:10 pm-8:15 pm
Nonstop6h 05m
$285
San DiegoBoston
SAN San Diego - BOS Boston Logan Intl
SANBOS
San Diego
Fri 1/15
10:30 pm-9:24 am
1 stop7h 54m
Boston Logan Intl
Tue 1/19
4:57 pm-10:28 pm
1 stop8h 31m
$290
San DiegoBoston
SAN San Diego - BOS Boston Logan Intl
SANBOS
San Diego
Thu 11/12
10:40 pm-11:10 am
1 stop9h 30m
Boston Logan Intl
Mon 11/16
3:30 pm-11:05 pm
2 stops10h 35m
$292
San DiegoBoston
SAN San Diego - BOS Boston Logan Intl
SANBOS
San Diego
Fri 10/30
2:59 pm-7:26 am
1 stop13h 27m
Boston Logan Intl
Wed 11/4
7:03 am-10:34 am
Nonstop6h 31m
$295
San DiegoBoston
SAN San Diego - BOS Boston Logan Intl
SANBOS
San Diego
Tue 9/29
3:55 pm-12:30 am
Nonstop5h 35m
Boston Logan Intl
Mon 10/5
5:10 pm-12:10 am
1 stop10h 00m
$307
San DiegoBoston
SAN San Diego - BOS Boston Logan Intl
SANBOS
San Diego
Thu 9/10
8:59 pm-5:47 am
Nonstop5h 48m
Boston Logan Intl
Thu 9/17
7:59 pm-10:46 am
1 stop17h 47m
$347
Showing 1-10 of 23 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 August.
| 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 |
- 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 89 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, October is the cheapest month in which you can book a flight from San Diego to Boston (average of $306). Flying from San Diego to Boston in December is currently the most expensive (average of $449). 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 August 20, 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 26% 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 August 15, 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 17% 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 August 20, 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.
Overall
8.0
Crew
8.6
Boarding
8.1
Comfort
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Overall
8.0
Crew
8.6
Boarding
8.1
Comfort
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Overall
8.0
Crew
8.6
Boarding
8.1
Comfort
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Overall
8.0
Crew
8.6
Boarding
8.1
Comfort
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Overall
8.0
Crew
8.6
Boarding
8.1
Comfort
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Overall
8.0
Crew
8.6
Boarding
8.1
Comfort
8.0
Food
7.0
Entertainment
7.5
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
Seekonk
Cranston
Dedham
Warwick
Peabody
Auburn
Chelsea
York Beach
Londonderry
Revere
Fitchburg
Swansea
North Falmouth
Braintree
Sandwich
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for San Diego to Boston
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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 August 20, 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 August 20, 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 August 20, 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 August 20, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$118 | Average$367 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$129 | Average$332 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$151 | Average$349 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$198 | Average$403 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$222 | Average$421 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$247 | Average$406 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$255 | Average$464 | FlexibilityNo cancel fee | On-time71% |