$132+ 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 9/11. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — BOS
Sep 9 — Sep 161
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 10, 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 10, 2026.
This Southwest deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/53:55 pm -
Nonstop5h 35m
Sat 9/128:40 am -
2 stops11h 30m
Deal found 8/6![Southwest logo]()
$252
This Southwest deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/123:55 pm -
Nonstop5h 35m
Sat 9/197:05 am -
1 stop12h 05m
Deal found 8/7![Southwest logo]()
$253
This Super.com deal was found by Cheapflights users on 8/6. 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 9/159:05 pm -
Nonstop5h 47m
Sun 9/209:30 am -
Nonstop6h 04m
Deal found 8/6![JetBlue logo]()
$254
This Cheapflightsfares deal was found by Cheapflights users on 8/7. 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 8/7![JetBlue logo]()
$255
This United Airlines deal was found by Cheapflights users on 8/7. 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 9/2910:40 am -
1 stop8h 19m
Sat 10/310:36 am -
1 stop8h 13m
Deal found 8/7![United Airlines logo]()
$257
This Cheapflightsfares deal was found by Cheapflights users on 8/7. 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.
Mon 8/318:17 pm -
Nonstop5h 43m
Sat 9/1210:00 am -
Nonstop6h 07m
Deal found 8/7![JetBlue logo]()
$258
This JetBlue deal was found by Cheapflights users on 8/6. 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 10/288:40 pm -
Nonstop5h 31m
Sun 11/16:30 am -
Nonstop6h 35m
Deal found 8/6![JetBlue logo]()
$259
This JetBlue deal was found by Cheapflights users on 8/6. 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 9/18:17 pm -
Nonstop5h 43m
Sat 9/54:30 pm -
Nonstop6h 08m
Deal found 8/6![JetBlue logo]()
$260
This American Airlines deal was found by Cheapflights users on 8/7. 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 10/38:00 am -
1 stop10h 27m
Sat 10/104:48 pm -
1 stop9h 45m
Deal found 8/7![American Airlines logo]()
$261
This Southwest deal was found by Cheapflights users on 8/7. 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 9/113:30 pm -
1 stop13h 30m
Wed 9/169:05 am -
Nonstop5h 55m
Deal found 8/7![Southwest logo]()
$263
This FlightHub deal was found by Cheapflights users on 8/7. 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.
Wed 9/91:48 pm -
Nonstop6h 12m
Thu 9/176:17 pm -
Nonstop6h 13m
Deal found 8/7![Multiple Airlines logo]()
$264
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 10, 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 10, 2026.
This Southwest deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/127:35 am -
1 stop11h 10m
Sat 9/192:10 pm -
Nonstop6h 00m
Deal found 8/8![Southwest logo]()
$253
This Delta deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2810:02 pm -
Nonstop5h 38m
Thu 9/35:20 pm -
Nonstop6h 15m
Deal found 8/7![Delta logo]()
$290
This United Airlines deal was found by Cheapflights users on 8/6. 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 9/32:15 pm -
1 stop7h 56m
Sat 9/125:00 pm -
1 stop8h 10m
Deal found 8/6![United Airlines logo]()
$298
This Alaska Airlines deal was found by Cheapflights users on 8/7. 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.
Mon 9/216:12 pm -
1 stop8h 57m
Thu 9/246:17 pm -
Nonstop6h 13m
Deal found 8/7![Alaska Airlines logo]()
$313
This Southwest deal was found by Cheapflights users on 8/6. 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 8/283:55 pm -
Nonstop5h 30m
Mon 8/3111:15 am -
Nonstop5h 55m
Deal found 8/6![Southwest logo]()
$290
This Delta deal was found by Cheapflights users on 8/9. 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 8/2510:02 pm -
Nonstop5h 38m
Wed 9/25:20 pm -
Nonstop6h 15m
Deal found 8/9![Delta logo]()
$297
This Southwest deal was found by Cheapflights users on 8/5. 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 8/263:55 pm -
Nonstop5h 30m
Mon 8/315:40 am -
1 stop7h 40m
Deal found 8/5![Southwest logo]()
$293
This Delta deal was found by Cheapflights users on 8/8. 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
Thu 9/175:10 pm -
Nonstop6h 05m
Deal found 8/8![Delta logo]()
$297
This Southwest deal was found by Cheapflights users on 8/9. 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 10/56:05 pm -
1 stop9h 25m
Deal found 8/9![Southwest logo]()
$295
This Southwest deal was found by Cheapflights users on 8/5. 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 10/2810:40 pm -
1 stop7h 15m
Sun 11/15:20 am -
1 stop8h 10m
Deal found 8/5![Southwest logo]()
$305
This Southwest deal was found by Cheapflights users on 8/5. 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 9/23:55 pm -
Nonstop5h 30m
Sun 9/62:25 pm -
1 stop10h 00m
Deal found 8/5![Southwest logo]()
$330
This Southwest deal was found by Cheapflights users on 8/6. 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 stop7h 15m
Wed 10/212:50 pm -
2 stops10h 10m
Deal found 8/6![Southwest logo]()
$355
Last-minute flights from San Diego to BostonDiscover last-minute flight deals from San Diego to Boston. Data last updated August 10, 2026 and is based on user searches.
Discover last-minute flight deals from San Diego to Boston. Data last updated August 10, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 8/7. 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 8/1810:00 am -
2 stops22h 47m
Mon 8/2412:45 pm -
1 stop26h 24m
Deal found 8/7![Multiple Airlines logo]()
$314
This Southwest deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1810:40 pm -
1 stop8h 15m
Fri 8/2111:15 am -
Nonstop5h 55m
Deal found 8/5![Southwest logo]()
$347
This United Airlines deal was found by Cheapflights users on 8/5. 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 8/192:15 pm -
1 stop7h 56m
Sat 8/226:01 am -
1 stop8h 14m
Deal found 8/5![United Airlines logo]()
$312
This American Airlines deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/199:40 am -
1 stop8h 05m
Wed 9/27:26 am -
1 stop8h 22m
Deal found 8/5![American Airlines logo]()
$315
This Southwest deal was found by Cheapflights users on 8/5. 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 8/193:55 pm -
Nonstop5h 30m
Sat 8/222:10 pm -
Nonstop5h 55m
Deal found 8/5![Southwest logo]()
$352
This American Airlines deal was found by Cheapflights users on 8/5. 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.
Thu 8/206:15 am -
1 stop9h 25m
Mon 8/318:15 am -
1 stop7h 52m
Deal found 8/5![American Airlines logo]()
$320
This American Airlines deal was found by Cheapflights users on 8/5. 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.
Thu 8/209:48 am -
1 stop8h 12m
Sun 8/236:45 am -
1 stop10h 30m
Deal found 8/5![American Airlines logo]()
$327
This United Airlines deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/206:55 pm -
1 stop8h 04m
Sat 8/226:01 am -
1 stop8h 14m
Deal found 8/6![United Airlines logo]()
$342
This Delta deal was found by Cheapflights users on 8/5. 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 8/2010:02 pm -
Nonstop5h 38m
Mon 8/315:20 pm -
Nonstop6h 15m
Deal found 8/5![Delta logo]()
$350
This Southwest deal was found by Cheapflights users on 8/5. 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 8/2010:40 pm -
1 stop7h 20m
Mon 8/3111:15 am -
Nonstop5h 55m
Deal found 8/5![Southwest logo]()
$355
This Delta deal was found by Cheapflights users on 8/6. 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 8/2010:02 pm -
Nonstop5h 38m
Sat 8/225:20 pm -
Nonstop6h 15m
Deal found 8/6![Delta logo]()
$357
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 10, 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 10, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/7. 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.
Fri 9/114:54 pm -
2 stops39h 04m
Deal found 8/7![Frontier logo]()
$132
This Kiwi.com deal was found by Cheapflights users on 8/8. 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.
Mon 9/219:03 pm -
2 stops36h 06m
Deal found 8/8![Frontier logo]()
$133
This Southwest deal was found by Cheapflights users on 8/6. 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 11/310:55 am -
2 stops9h 45m
Deal found 8/6![Southwest logo]()
$134
This Kiwi.com deal was found by Cheapflights users on 8/9. 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 9/510:00 am -
2 stops22h 47m
Deal found 8/9![Frontier logo]()
$135
This Super.com deal was found by Cheapflights users on 8/9. 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 10/231:17 pm -
Nonstop6h 08m
Deal found 8/9![JetBlue logo]()
$136
This Southwest deal was found by Cheapflights users on 8/9. 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
Deal found 8/9![Southwest logo]()
$137
This United Airlines deal was found by Cheapflights users on 8/7. 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 12/256:50 am -
1 stop7h 34m
Deal found 8/7![United Airlines logo]()
$139
This Cheapflightsfares deal was found by Cheapflights users on 8/7. 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.
Mon 8/318:17 pm -
Nonstop5h 43m
Deal found 8/7![JetBlue logo]()
$140
This Kiwi.com deal was found by Cheapflights users on 8/7. 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 9/86:25 am -
2 stops26h 34m
Deal found 8/7![Frontier logo]()
$141
This Southwest deal was found by Cheapflights users on 8/7. 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 9/13:55 pm -
Nonstop5h 30m
Deal found 8/7![Southwest logo]()
$142
This Kiwi.com deal was found by Cheapflights users on 8/5. 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 10/136:25 am -
2 stops24h 44m
Deal found 8/5![Frontier logo]()
$143
This United Airlines deal was found by Cheapflights users on 8/7. 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 11/269:45 pm -
2 stops11h 41m
Deal found 8/7![United Airlines logo]()
$144
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 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $252 (Southwest) |
One-way from | $132 (Kiwi.com) |
Popular in | December |
Cheapest in | October |
Average price | $354 |
Good round-trip deal | $273 or less |
Good one-way deal | $165 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 2,558,603 searches. Data last updated August 10, 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
Sat 9/12
7:35 am-9:45 pm
1 stop11h 10m
Boston Logan Intl
Sat 9/19
2:10 pm-5:10 pm
Nonstop6h 00m
$253
San DiegoBoston
SAN San Diego - BOS Boston Logan Intl
SANBOS
San Diego
Fri 8/28
10:02 pm-6:40 am
Nonstop5h 38m
Boston Logan Intl
Thu 9/3
5:20 pm-8:35 pm
Nonstop6h 15m
$290
Quickest round-trip
San DiegoBoston
SAN San Diego - BOS Boston Logan Intl
SANBOS
San Diego
Fri 8/28
3:55 pm-12:25 am
Nonstop5h 30m
Boston Logan Intl
Mon 8/31
11:15 am-2:10 pm
Nonstop5h 55m
$290
San DiegoBoston
SAN San Diego - BOS Boston Logan Intl
SANBOS
San Diego
Wed 8/26
3:55 pm-12:25 am
Nonstop5h 30m
Boston Logan Intl
Mon 8/31
5:40 am-10:20 am
1 stop7h 40m
$293
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
6:05 pm-12:30 am
1 stop9h 25m
$295
San DiegoBoston
SAN San Diego - BOS Boston Logan Intl
SANBOS
San Diego
Tue 8/25
10:02 pm-6:40 am
Nonstop5h 38m
Boston Logan Intl
Wed 9/2
5:20 pm-8:35 pm
Nonstop6h 15m
$297
San DiegoBoston
SAN San Diego - BOS Boston Logan Intl
SANBOS
San Diego
Wed 9/9
10:04 pm-6:40 am
Nonstop5h 36m
Boston Logan Intl
Thu 9/17
5:10 pm-8:15 pm
Nonstop6h 05m
$297
San DiegoBoston
SAN San Diego - BOS Boston Logan Intl
SANBOS
San Diego
Thu 9/3
2:15 pm-1:11 am
1 stop7h 56m
Boston Logan Intl
Sat 9/12
5:00 pm-10:10 pm
1 stop8h 10m
$298
San DiegoBoston
SAN San Diego - BOS Boston Logan Intl
SANBOS
San Diego
Wed 10/28
10:40 pm-8:55 am
1 stop7h 15m
Boston Logan Intl
Sun 11/1
5:20 am-10:30 am
1 stop8h 10m
$305
San DiegoBoston
SAN San Diego - BOS Boston Logan Intl
SANBOS
San Diego
Mon 9/21
6:12 pm-6:09 am
1 stop8h 57m
Boston Logan Intl
Thu 9/24
6:17 pm-9:30 pm
Nonstop6h 13m
$313
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 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 $305). Flying from San Diego to Boston in December is currently the most expensive (average of $450). 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 10, 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 1, 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 10, 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.
Entertainment
7.5
Food
7.0
Comfort
8.0
Crew
8.6
Overall
8.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Entertainment
7.5
Food
7.0
Comfort
8.0
Crew
8.6
Overall
8.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Entertainment
7.5
Food
7.0
Comfort
8.0
Crew
8.6
Overall
8.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Entertainment
7.5
Food
7.0
Comfort
8.0
Crew
8.6
Overall
8.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Entertainment
7.5
Food
7.0
Comfort
8.0
Crew
8.6
Overall
8.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Entertainment
7.5
Food
7.0
Comfort
8.0
Crew
8.6
Overall
8.0
Boarding
8.1
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
Cambridge
Concord
Brockton
Seekonk
Cranston
Dedham
Warwick
Peabody
Auburn
Chelsea
York Beach
Londonderry
Swansea
Revere
Fitchburg
North Falmouth
Braintree
Sandwich
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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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 August 10, 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 10, 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 10, 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 2,558,603 searches. Data last updated August 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$118 | Average$297 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$129 | Average$333 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$149 | Average$351 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$203 | Average$414 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$223 | Average$423 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$247 | Average$409 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$256 | Average$465 | FlexibilityNo cancel fee | On-time71% |