$145+ 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 6/1. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — BOS
May 10 — May 171
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 67 days in advance, depart on a Wednesday or Saturday and return on a Wednesday
Cheap flight deals from San Diego to Boston
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Best
Last-minute
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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 April 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 April 10, 2026.
This American Airlines deal was found by Cheapflights users on 4/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/296:15 am
SAN
- BOS
1 stop7h 49m
American Airlines
Wed 5/66:00 am
BOS
- SAN
1 stop8h 17m
American Airlines
Deal found 4/9![American Airlines logo]()
$227
This United Airlines deal was found by Cheapflights users on 4/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/302:14 pm
SAN
- BOS
1 stop7h 45m
United Airlines
Mon 5/46:20 pm
BOS
- SAN
1 stop8h 39m
United Airlines
Deal found 4/9![United Airlines logo]()
$232
This United Airlines deal was found by Cheapflights users on 4/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/271:53 pm
SAN
- BOS
1 stop8h 06m
United Airlines
Fri 5/295:45 am
BOS
- SAN
1 stop7h 53m
United Airlines
Deal found 4/8![United Airlines logo]()
$242
This Delta deal was found by Cheapflights users on 4/7. 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.
Wed 4/299:59 pm
SAN
- BOS
Nonstop5h 31m
Delta
Tue 5/55:44 pm
BOS
- SAN
Nonstop6h 29m
Delta
Deal found 4/7![Delta logo]()
$243
This Delta deal was found by Cheapflights users on 4/8. 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 4/299:59 pm
SAN
- BOS
Nonstop5h 31m
Delta
Wed 5/610:20 am
BOS
- SAN
1 stop8h 35m
Delta
Deal found 4/8![Delta logo]()
$245
This Delta deal was found by Cheapflights users on 4/8. 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.
Tue 4/289:59 pm
SAN
- BOS
Nonstop5h 31m
Delta
Wed 5/65:44 pm
BOS
- SAN
Nonstop6h 29m
Delta
Deal found 4/8![Delta logo]()
$247
This Delta deal was found by Cheapflights users on 4/8. 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 4/299:59 pm
SAN
- BOS
Nonstop5h 31m
Delta
Sat 5/305:10 pm
BOS
- SAN
Nonstop6h 21m
Delta
Deal found 4/8![Delta logo]()
$252
This American Airlines deal was found by Cheapflights users on 4/5. 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.
Sat 5/168:15 am
SAN
- BOS
1 stop9h 45m
American Airlines
Wed 5/2712:39 pm
BOS
- SAN
1 stop10h 28m
American Airlines
Deal found 4/5![American Airlines logo]()
$257
This American Airlines deal was found by Cheapflights users on 4/7. 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.
Sun 5/310:40 pm
SAN
- BOS
1 stop7h 47m
American Airlines
Tue 5/123:16 pm
BOS
- SAN
1 stop8h 27m
American Airlines
Deal found 4/7![American Airlines logo]()
$258
This CheapOair deal was found by Cheapflights users on 4/8. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/98:07 am
SAN
- BOS
Nonstop5h 46m
Alaska Airlines
Tue 5/125:56 pm
BOS
- SAN
Nonstop6h 33m
Alaska Airlines
Deal found 4/8![Alaska Airlines logo]()
$260
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 April 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 April 10, 2026.
This Delta deal was found by Cheapflights users on 4/7. 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.
Wed 4/299:59 pm
SAN
- BOS
Nonstop5h 31m
Delta
Wed 5/65:44 pm
BOS
- SAN
Nonstop6h 29m
Delta
Deal found 4/7![Delta logo]()
$243
This United Airlines deal was found by Cheapflights users on 4/7. 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.
Wed 7/226:55 pm
SAN
- BOS
1 stop8h 03m
United Airlines
Wed 9/169:30 am
BOS
- SAN
1 stop8h 27m
United Airlines
Deal found 4/7![United Airlines logo]()
$257
This Southwest deal was found by Cheapflights users on 4/5. 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.
Fri 5/11:20 pm
SAN
- BOS
1 stop6h 50m
Southwest
Wed 5/62:25 pm
BOS
- SAN
2 stops10h 05m
Southwest
Deal found 4/5![Southwest logo]()
$302
This Alaska Airlines deal was found by Cheapflights users on 4/5. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/96:34 pm
SAN
- BOS
1 stop9h 38m
Alaska Airlines
Tue 5/125:56 pm
BOS
- SAN
Nonstop6h 33m
Alaska Airlines
Deal found 4/5![Alaska Airlines logo]()
$317
This Southwest deal was found by Cheapflights users on 4/5. 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 7/142:35 pm
SAN
- BOS
Nonstop5h 25m
Southwest
Wed 7/295:00 pm
BOS
- SAN
1 stop9h 25m
Southwest
Deal found 4/5![Southwest logo]()
$307
This United Airlines deal was found by Cheapflights users on 4/5. 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.
Sat 5/92:14 pm
SAN
- BOS
1 stop7h 45m
United Airlines
Tue 5/125:45 am
BOS
- SAN
1 stop8h 31m
United Airlines
Deal found 4/5![United Airlines logo]()
$332
This Alaska Airlines deal was found by Cheapflights users on 4/7. 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.
Tue 6/308:52 pm
SAN
- BOS
Nonstop5h 48m
Alaska Airlines
Sat 7/188:28 am
BOS
- SAN
Nonstop6h 15m
Alaska Airlines
Deal found 4/7![Alaska Airlines logo]()
$336
This Southwest deal was found by Cheapflights users on 4/6. 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 7/42:35 pm
SAN
- BOS
Nonstop5h 25m
Southwest
Thu 7/95:20 pm
BOS
- SAN
1 stop9h 00m
Southwest
Deal found 4/6![Southwest logo]()
$315
This Southwest deal was found by Cheapflights users on 4/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/32:35 pm
SAN
- BOS
Nonstop5h 25m
Southwest
Sat 8/158:40 am
BOS
- SAN
2 stops11h 30m
Southwest
Deal found 4/10![Southwest logo]()
$332
This Southwest deal was found by Cheapflights users on 4/9. 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.
Sat 6/66:20 am
SAN
- BOS
1 stop9h 00m
Southwest
Sun 7/1210:05 pm
BOS
- SAN
1 stop12h 45m
Southwest
Deal found 4/9![Southwest logo]()
$332
This Southwest deal was found by Cheapflights users on 4/5. 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.
Fri 6/510:40 pm
SAN
- BOS
1 stop7h 00m
Southwest
Mon 6/83:55 pm
BOS
- SAN
1 stop10h 25m
Southwest
Deal found 4/5![Southwest logo]()
$337
This Southwest deal was found by Cheapflights users on 4/7. 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.
Sun 5/3110:40 pm
SAN
- BOS
1 stop9h 15m
Southwest
Thu 6/46:25 am
BOS
- SAN
1 stop8h 40m
Southwest
Deal found 4/7![Southwest logo]()
$357
Last-minute flights from San Diego to BostonDiscover last-minute flight deals from San Diego to Boston. Data last updated April 10, 2026 and is based on user searches.
Discover last-minute flight deals from San Diego to Boston. Data last updated April 10, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 4/8. 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.
Tue 4/289:59 pm
SAN
- BOS
Nonstop5h 31m
Delta
Wed 5/65:44 pm
BOS
- SAN
Nonstop6h 29m
Delta
Deal found 4/8![Delta logo]()
$247
This American Airlines deal was found by Cheapflights users on 4/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/296:15 am
SAN
- BOS
1 stop7h 49m
American Airlines
Wed 5/66:00 am
BOS
- SAN
1 stop8h 17m
American Airlines
Deal found 4/9![American Airlines logo]()
$227
This Delta deal was found by Cheapflights users on 4/7. 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.
Wed 4/299:59 pm
SAN
- BOS
Nonstop5h 31m
Delta
Tue 5/55:44 pm
BOS
- SAN
Nonstop6h 29m
Delta
Deal found 4/7![Delta logo]()
$243
This Delta deal was found by Cheapflights users on 4/8. 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 4/299:59 pm
SAN
- BOS
Nonstop5h 31m
Delta
Wed 5/610:20 am
BOS
- SAN
1 stop8h 35m
Delta
Deal found 4/8![Delta logo]()
$245
This Delta deal was found by Cheapflights users on 4/8. 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 4/299:59 pm
SAN
- BOS
Nonstop5h 31m
Delta
Sat 5/305:10 pm
BOS
- SAN
Nonstop6h 21m
Delta
Deal found 4/8![Delta logo]()
$252
This United Airlines deal was found by Cheapflights users on 4/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/302:14 pm
SAN
- BOS
1 stop7h 45m
United Airlines
Mon 5/46:20 pm
BOS
- SAN
1 stop8h 39m
United Airlines
Deal found 4/9![United Airlines logo]()
$232
This American Airlines deal was found by Cheapflights users on 4/7. 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.
Sun 5/310:40 pm
SAN
- BOS
1 stop7h 47m
American Airlines
Tue 5/123:16 pm
BOS
- SAN
1 stop8h 27m
American Airlines
Deal found 4/7![American Airlines logo]()
$258
This CheapOair deal was found by Cheapflights users on 4/8. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/98:07 am
SAN
- BOS
Nonstop5h 46m
Alaska Airlines
Tue 5/125:56 pm
BOS
- SAN
Nonstop6h 33m
Alaska Airlines
Deal found 4/8![Alaska Airlines logo]()
$260
This American Airlines deal was found by Cheapflights users on 4/5. 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.
Sat 5/168:15 am
SAN
- BOS
1 stop9h 45m
American Airlines
Wed 5/2712:39 pm
BOS
- SAN
1 stop10h 28m
American Airlines
Deal found 4/5![American Airlines logo]()
$257
This United Airlines deal was found by Cheapflights users on 4/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/271:53 pm
SAN
- BOS
1 stop8h 06m
United Airlines
Fri 5/295:45 am
BOS
- SAN
1 stop7h 53m
United Airlines
Deal found 4/8![United Airlines logo]()
$242
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 April 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 April 10, 2026.
This KAYAK deal was found by Cheapflights users on 4/8. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/18:44 pm
SAN
- BOS
Nonstop5h 39m
JetBlue
Deal found 4/8![JetBlue logo]()
$145
This Kiwi.com deal was found by Cheapflights users on 4/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/206:43 pm
SAN
- BOS
2 stops14h 02m
Frontier
Deal found 4/6![Frontier logo]()
$146
This KAYAK deal was found by Cheapflights users on 4/6. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/78:40 pm
SAN
- BOS
Nonstop5h 39m
JetBlue
Deal found 4/6![JetBlue logo]()
$147
This Kiwi.com deal was found by Cheapflights users on 4/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/58:52 pm
SAN
- BOS
Nonstop5h 48m
Alaska Airlines
Deal found 4/6![Alaska Airlines logo]()
$148
This Southwest deal was found by Cheapflights users on 4/7. 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.
Mon 6/152:35 pm
SAN
- BOS
Nonstop5h 25m
Southwest
Deal found 4/7![Southwest logo]()
$149
This Kiwi.com deal was found by Cheapflights users on 4/10. Clicking the “Pick Dates” 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 5/66:25 am
SAN
- BOS
2 stops15h 59m
Frontier
Deal found 4/10![Frontier logo]()
$151
This Cheapflightsfares deal was found by Cheapflights users on 4/6. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/29:35 pm
SAN
- BOS
Nonstop5h 35m
JetBlue
Deal found 4/6![JetBlue logo]()
$152
This United Airlines deal was found by Cheapflights users on 4/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/1410:40 pm
SAN
- BOS
1 stop7h 45m
United Airlines
Deal found 4/9![United Airlines logo]()
$153
This Southwest deal was found by Cheapflights users on 4/7. 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 5/810:30 pm
SAN
- BOS
2 stops13h 15m
Southwest
Deal found 4/7![Southwest logo]()
$154
This Kiwi.com deal was found by Cheapflights users on 4/8. 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.
Tue 4/212:12 pm
SAN
- BOS
2 stops32h 19m
Frontier
Deal found 4/8![Frontier logo]()
$155
This United Airlines deal was found by Cheapflights users on 4/5. 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.
Sun 6/710:40 pm
SAN
- BOS
1 stop7h 59m
United Airlines
Deal found 4/5![United Airlines logo]()
$156
This Kiwi.com deal was found by Cheapflights users on 4/8. 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.
Tue 6/912:54 pm
SAN
- BOS
1 stop19h 11m
Multiple Airlines
Deal found 4/8![Multiple Airlines logo]()
$157
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 April 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $227 (American Airlines) |
One-way from | $145 (KAYAK) |
Popular in | December |
Cheapest in | January |
Average price | $442 |
Good round-trip deal | $314 or less |
Good one-way deal | $188 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 April 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
Quickest round-trip
San DiegoBoston
SAN - BOS
SANBOS
San Diego
Wed 4/29
9:59 pm-6:30 am
Nonstop5h 31m
Boston Logan Intl
Wed 5/6
5:44 pm-9:13 pm
Nonstop6h 29m
$243
San DiegoBoston
SAN - BOS
SANBOS
San Diego
Wed 7/22
6:55 pm-5:58 am
1 stop8h 03m
Boston Logan Intl
Wed 9/16
9:30 am-2:57 pm
1 stop8h 27m
$257
San DiegoBoston
SAN - BOS
SANBOS
San Diego
Fri 5/1
1:20 pm-11:10 pm
1 stop6h 50m
Boston Logan Intl
Wed 5/6
2:25 pm-9:30 pm
2 stops10h 05m
$302
San DiegoBoston
SAN - BOS
SANBOS
San Diego
Tue 7/14
2:35 pm-11:00 pm
Nonstop5h 25m
Boston Logan Intl
Wed 7/29
5:00 pm-11:25 pm
1 stop9h 25m
$307
San DiegoBoston
SAN - BOS
SANBOS
San Diego
Sat 7/4
2:35 pm-11:00 pm
Nonstop5h 25m
Boston Logan Intl
Thu 7/9
5:20 pm-11:20 pm
1 stop9h 00m
$315
San DiegoBoston
SAN - BOS
SANBOS
San Diego
Sat 5/9
6:34 pm-7:12 am
1 stop9h 38m
Boston Logan Intl
Tue 5/12
5:56 pm-9:29 pm
Nonstop6h 33m
$317
San DiegoBoston
SAN - BOS
SANBOS
San Diego
Sat 5/9
2:14 pm-12:59 am
1 stop7h 45m
Boston Logan Intl
Tue 5/12
5:45 am-11:16 am
1 stop8h 31m
$332
San DiegoBoston
SAN - BOS
SANBOS
San Diego
Mon 8/3
2:35 pm-11:00 pm
Nonstop5h 25m
Boston Logan Intl
Sat 8/15
8:40 am-5:10 pm
2 stops11h 30m
$332
San DiegoBoston
SAN - BOS
SANBOS
San Diego
Sat 6/6
6:20 am-6:20 pm
1 stop9h 00m
Boston Logan Intl
Sun 7/12
10:05 pm-7:50 am
1 stop12h 45m
$332
San DiegoBoston
SAN - BOS
SANBOS
San Diego
Tue 6/30
8:52 pm-5:40 am
Nonstop5h 48m
Boston Logan Intl
Sat 7/18
8:28 am-11:43 am
Nonstop6h 15m
$336
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 April.
| 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 Accuracy- | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | 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?
Use this chart to determine the optimal time to book a round-trip flight from San Diego to Boston. Price data was last updated on April 9, 2026.
To ensure you get the cheapest price possible for a flight from San Diego to Boston, you should look to book at least 67 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, March is the cheapest month in which you can book a flight from San Diego to Boston (average of $133). Flying from San Diego to Boston in January is currently the most expensive (average of $217). 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 April 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 April 4, 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. Monday mornings 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 16% of weekly flights between San Diego and Boston have experienced delays in the past year, with the average delay time being 168 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 morning 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 Sunday 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 13% 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 April 10, 2026.
Peruse reviews from past customers who have flown with Alaska Airlines,Delta, andHawaiian Airlines 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.
Boarding
8.1
Food
7.0
Entertainment
7.0
Overall
7.9
Comfort
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Boarding
8.1
Food
7.0
Entertainment
7.0
Overall
7.9
Comfort
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Boarding
8.1
Food
7.0
Entertainment
7.0
Overall
7.9
Comfort
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Boarding
8.1
Food
7.0
Entertainment
7.0
Overall
7.9
Comfort
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Boarding
8.1
Food
7.0
Entertainment
7.0
Overall
7.9
Comfort
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Boarding
8.1
Food
7.0
Entertainment
7.0
Overall
7.9
Comfort
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
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 locationsMedford
Cambridge
Concord
Hampton Beach
Watertown
Brockton
Seekonk
Cranston
Chelsea
Seabrook
Warwick
Peabody
York Beach
Londonderry
Swansea
Old Orchard Beach
Lincoln
Quincy
Waltham
Lowell
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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 April 10, 2026.
Complete your trip
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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 April 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 April 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 April 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$118 | Average$318 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$128 | Average$327 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$149 | Average$340 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$203 | Average$418 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$233 | Average$426 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$236 | Average$413 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$255 | Average$446 | FlexibilityNo cancel fee | On-time71% |