$129+ Cheap flights from San Diego to Boston (SAN - BOS)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/24. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — BOS
Nov 1 — Nov 81
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 September, booked 81 days in advance, depart on a Saturday or Wednesday and return on a Wednesday
Cheap flight deals from San Diego to Boston
Cheapest
Best
Last-minute
One-way
Cheapest flights from San Diego to BostonExplore the most affordable flight options available from San Diego to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 2, 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 October 2, 2026.
This JetBlue deal was found by Cheapflights users on 10/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/269:40 pm -
1 stop10h 01m
Wed 11/47:00 am -
Nonstop6h 31m
Deal found 10/2![JetBlue logo]()
$236
This Alaska Airlines deal was found by Cheapflights users on 10/1. 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 10/218:34 pm -
Nonstop5h 47m
Sat 10/246:14 pm -
Nonstop6h 21m
Deal found 10/1![Alaska Airlines logo]()
$237
This American Airlines deal was found by Cheapflights users on 10/1. 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 10/2110:06 am -
1 stop9h 31m
Wed 10/286:00 am -
1 stop8h 20m
Deal found 10/1![American Airlines logo]()
$238
This Super.com deal was found by Cheapflights users on 10/1. 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 11/1711:48 am -
1 stop9h 00m
Thu 11/191:24 pm -
1 stop9h 20m
Deal found 10/1![JetBlue logo]()
$239
This FlightHub deal was found by Cheapflights users on 10/1. 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 10/298:26 pm -
Nonstop5h 34m
Wed 11/47:03 am -
Nonstop6h 31m
Deal found 10/1![Multiple Airlines logo]()
$241
This Southwest deal was found by Cheapflights users on 10/1. 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 10/2110:40 pm -
1 stop7h 15m
Wed 10/2810:55 am -
2 stops10h 55m
Deal found 10/1![Southwest logo]()
$242
This Super.com deal was found by Cheapflights users on 10/1. 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 10/238:20 pm -
Nonstop6h 06m
Tue 10/273:50 pm -
Nonstop6h 24m
Deal found 10/1![JetBlue logo]()
$244
This Super.com deal was found by Cheapflights users on 10/2. 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 10/208:20 pm -
Nonstop6h 06m
Sat 10/2410:00 am -
Nonstop6h 13m
Deal found 10/2![JetBlue logo]()
$246
This Cheapflightsfares deal was found by Cheapflights users on 9/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2211:19 am -
Nonstop5h 56m
Mon 10/267:00 am -
Nonstop6h 31m
Deal found 9/30![JetBlue logo]()
$248
This JetBlue deal was found by Cheapflights users on 10/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/221:46 pm -
Nonstop6h 12m
Tue 10/271:00 pm -
1 stop10h 25m
Deal found 10/2![JetBlue logo]()
$249
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 October 2, 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 October 2, 2026.
This JetBlue deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/239:30 pm -
1 stop10h 21m
Sat 10/311:00 pm -
1 stop10h 25m
Deal found 9/28![JetBlue logo]()
$260
This Southwest deal was found by Cheapflights users on 9/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/232:10 pm -
1 stop8h 05m
Sat 10/245:25 am -
2 stops14h 45m
Deal found 9/30![Southwest logo]()
$322
This JetBlue deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/221:46 pm -
Nonstop6h 12m
Thu 11/51:00 pm -
1 stop10h 25m
Deal found 10/1![JetBlue logo]()
$299
This Southwest deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1312:10 pm -
2 stops8h 15m
Fri 11/208:15 am -
Nonstop6h 25m
Deal found 9/29![Southwest logo]()
$332
This Southwest deal was found by Cheapflights users on 9/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2411:40 am -
Nonstop5h 35m
Mon 10/2612:55 pm -
1 stop11h 10m
Deal found 9/30![Southwest logo]()
$347
This JetBlue deal was found by Cheapflights users on 10/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/168:25 pm -
Nonstop6h 06m
Sat 10/2410:00 am -
Nonstop6h 13m
Deal found 10/2![JetBlue logo]()
$357
This Southwest deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/216:30 am -
2 stops11h 50m
Wed 12/25:00 am -
2 stops9h 25m
Deal found 9/29![Southwest logo]()
$377
This JetBlue deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/188:25 pm -
Nonstop6h 06m
Fri 10/231:12 pm -
1 stop9h 44m
Deal found 10/1![JetBlue logo]()
$380
This Southwest deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/110:55 am -
2 stops9h 50m
Thu 12/103:30 pm -
1 stop8h 25m
Deal found 9/27![Southwest logo]()
$377
This JetBlue deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/3011:39 am -
1 stop9h 53m
Thu 12/34:45 pm -
Nonstop6h 34m
Deal found 10/1![JetBlue logo]()
$386
This Southwest deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/196:30 am -
2 stops12h 15m
Sun 11/225:20 am -
1 stop10h 50m
Deal found 9/27![Southwest logo]()
$437
This JetBlue deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2110:13 am -
1 stop10h 46m
Sun 10/257:00 am -
Nonstop6h 31m
Deal found 9/27![JetBlue logo]()
$439
Last-minute flights from San Diego to BostonDiscover last-minute flight deals from San Diego to Boston. Data last updated October 2, 2026 and is based on user searches.
Discover last-minute flight deals from San Diego to Boston. Data last updated October 2, 2026 and is based on user searches.
This Super.com deal was found by Cheapflights users on 10/2. 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 10/208:20 pm -
Nonstop6h 06m
Sat 10/2410:00 am -
Nonstop6h 13m
Deal found 10/2![JetBlue logo]()
$246
This Alaska Airlines deal was found by Cheapflights users on 10/1. 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 10/218:34 pm -
Nonstop5h 47m
Sat 10/246:14 pm -
Nonstop6h 21m
Deal found 10/1![Alaska Airlines logo]()
$237
This American Airlines deal was found by Cheapflights users on 10/1. 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 10/2110:06 am -
1 stop9h 31m
Wed 10/286:00 am -
1 stop8h 20m
Deal found 10/1![American Airlines logo]()
$238
This Southwest deal was found by Cheapflights users on 10/1. 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 10/2110:40 pm -
1 stop7h 15m
Wed 10/2810:55 am -
2 stops10h 55m
Deal found 10/1![Southwest logo]()
$242
This Cheapflightsfares deal was found by Cheapflights users on 9/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2211:19 am -
Nonstop5h 56m
Mon 10/267:00 am -
Nonstop6h 31m
Deal found 9/30![JetBlue logo]()
$248
This JetBlue deal was found by Cheapflights users on 10/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/221:46 pm -
Nonstop6h 12m
Tue 10/271:00 pm -
1 stop10h 25m
Deal found 10/2![JetBlue logo]()
$249
This Super.com deal was found by Cheapflights users on 10/1. 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 10/238:20 pm -
Nonstop6h 06m
Tue 10/273:50 pm -
Nonstop6h 24m
Deal found 10/1![JetBlue logo]()
$244
This JetBlue deal was found by Cheapflights users on 10/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/269:40 pm -
1 stop10h 01m
Wed 11/47:00 am -
Nonstop6h 31m
Deal found 10/2![JetBlue logo]()
$236
This FlightHub deal was found by Cheapflights users on 10/1. 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 10/298:26 pm -
Nonstop5h 34m
Wed 11/47:03 am -
Nonstop6h 31m
Deal found 10/1![Multiple Airlines logo]()
$241
This Super.com deal was found by Cheapflights users on 10/1. 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 11/1711:48 am -
1 stop9h 00m
Thu 11/191:24 pm -
1 stop9h 20m
Deal found 10/1![JetBlue logo]()
$239
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 October 2, 2026.
Search for one-way flight options from San Diego to Boston. Find affordable one-way fares based on user searches. Data last updated October 2, 2026.
This JetBlue deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2410:24 am -
1 stop10h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/1![JetBlue logo]()
$129
This Orbitz deal was found by Cheapflights users on 9/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2111:19 am -
Nonstop5h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/30![JetBlue logo]()
$134
This Jetabroad deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/228:35 pm -
Nonstop5h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![JetBlue logo]()
$135
This Super.com deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/2311:19 am -
Nonstop5h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/29![JetBlue logo]()
$137
This JetBlue deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/611:48 am -
1 stop9h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/29![JetBlue logo]()
$138
This United Airlines deal was found by Cheapflights users on 9/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/219:45 am -
1 stop8h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/30![United Airlines logo]()
$139
This Super.com deal was found by Cheapflights users on 10/1. 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.
Thu 10/158:25 pm -
Nonstop6h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/1![JetBlue logo]()
$140
This Alaska Airlines deal was found by Cheapflights users on 10/1. 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 10/198:34 pm -
Nonstop5h 47m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/1![Alaska Airlines logo]()
$141
This Southwest deal was found by Cheapflights users on 9/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/276:30 am -
2 stops11h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/30![Southwest logo]()
$144
This United Airlines deal was found by Cheapflights users on 9/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/2510:20 am -
1 stop7h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/30![United Airlines logo]()
$149
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 October 2, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $236 (JetBlue) |
One-way from | $129 (JetBlue) |
Popular in | December |
Cheapest in | January |
Average price | $348 |
Good round-trip deal | $309 or less |
Good one-way deal | $184 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 October 2, 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 12/16
10:35 am-12:17 am
1 stop10h 42m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$129
San DiegoBoston
SAN San Diego - BOS Boston Logan Intl
SANBOS
San Diego
Thu 12/24
6:45 am-8:05 pm
1 stop10h 20m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$139
San DiegoBoston
SAN San Diego - BOS Boston Logan Intl
SANBOS
San Diego
Fri 10/30
9:30 am-6:00 pm
Nonstop5h 30m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$149
San DiegoBoston
SAN San Diego - BOS Boston Logan Intl
SANBOS
San Diego
Wed 11/4
11:32 am-11:58 pm
1 stop9h 26m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$174
San DiegoBoston
SAN San Diego - BOS Boston Logan Intl
SANBOS
San Diego
Sat 10/24
6:00 pm-6:12 am
1 stop9h 12m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$194
Quickest round-trip
San DiegoBoston
SAN San Diego - BOS Boston Logan Intl
SANBOS
San Diego
Sun 12/27
10:30 pm-6:45 am
Nonstop5h 15m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$197
San DiegoBoston
SAN San Diego - BOS Boston Logan Intl
SANBOS
San Diego
Sat 3/27
10:30 pm-10:53 am
1 stop9h 23m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$197
San DiegoBoston
SAN San Diego - BOS Boston Logan Intl
SANBOS
San Diego
Sun 11/8
9:53 pm-6:35 am
Nonstop5h 42m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$199
San DiegoBoston
SAN San Diego - BOS Boston Logan Intl
SANBOS
San Diego
Sat 2/13
8:20 pm-8:05 am
2 stops8h 45m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$199
San DiegoBoston
SAN San Diego - BOS Boston Logan Intl
SANBOS
San Diego
Mon 2/15
10:35 pm-1:40 pm
1 stop12h 05m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$204
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 October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*1 star |
- Most accurate provider: When it comes to deals on San Diego-Boston flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Diego-Boston flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Diego-Boston flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on San Diego-Boston flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Diego-Boston flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from San Diego to Boston
Have a flexible travel schedule? Discover the best time to fly to Boston from San Diego with our price prediction graph.
SAN-BOS
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from San Diego to Boston
Prices
Delays
How far ahead should I book a flight from San Diego to Boston?
To ensure you get the cheapest price possible for a flight from San Diego to Boston, you should look to book at least 80 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest month to book a flight from San Diego to Boston?
Currently, January is the cheapest month in which you can book a flight from San Diego to Boston (average of $298). Flying from San Diego to Boston in December is currently the most expensive (average of $452). 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 October 2, 2026.
When flying from San Diego to Boston, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 25% versus a flight in the morning.
What is the cheapest day to fly from San Diego to Boston?
Use this chart to determine the cheapest time to fly round-trip from San Diego to Boston. Price data was last updated on September 26, 2026.
Travelers seeking maximum savings on their San Diego to Boston flight should consider departing on Saturday afternoons when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
How often are flights from San Diego to Boston delayed?
About 19% of weekly flights between San Diego and Boston have experienced delays in the past year, with the average delay time being 174 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
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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 October 2, 2026.
Peruse reviews from past customers who have flown with Southwest,Alaska Airlines, andDelta from San Diego to Boston to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.0
Boarding
8.1
Overall
8.0
Crew
8.6
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Food
7.0
Boarding
8.1
Overall
8.0
Crew
8.6
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Food
7.0
Boarding
8.1
Overall
8.0
Crew
8.6
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Food
7.0
Boarding
8.1
Overall
8.0
Crew
8.6
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Food
7.0
Boarding
8.1
Overall
8.0
Crew
8.6
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Food
7.0
Boarding
8.1
Overall
8.0
Crew
8.6
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Related info for your journey
Find useful and relevant information for your journey from San Diego to Boston. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Boston?
Book flights to Boston if you plan to visit one of these locationsWaltham
Randolph
Concord
Cambridge
Brockton
Dedham
Cranston
Revere
Warwick
Pawtucket
Peabody
Auburn
Londonderry
York Beach
Fitchburg
North Falmouth
Swansea
Chelsea
Braintree
Sandwich
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
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San Diego and Boston flights
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Other flights from San Diego
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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 October 2, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$135 | Average$335 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$161 | Average$364 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$178 | Average$406 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$219 | Average$421 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$238 | Average$418 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$247 | Average$399 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$256 | Average$469 | FlexibilityNo cancel fee | On-time71% |