$115+ Cheap flights from Boston to San Diego (BOS - SAN)
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 1/28. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SAN
Dec 10 — Dec 171
Round-trip
1 adult, Economy
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Find cheap flights from Boston to San Diego 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 Boston Logan Intl to San Diego are usually found in January or March, booked 34 days in advance, depart on a Wednesday or Tuesday and return on a Wednesday
Cheap flight deals from Boston to San Diego
Cheapest
Best
Last-minute
One-way
Cheapest flights from Boston to San DiegoExplore the most affordable flight options available from Boston to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 10, 2026.
Explore the most affordable flight options available from Boston to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 10, 2026.
This JetBlue deal was found by Cheapflights users on 11/9. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/112:45 pm -
1 stop8h 34m
Tue 12/159:29 pm -
Nonstop5h 29m
Deal found 11/9![JetBlue logo]()
$205
This JetBlue deal was found by Cheapflights users on 11/5. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/105:45 am -
1 stop8h 38m
Thu 12/178:35 pm -
Nonstop5h 29m
Deal found 11/5![JetBlue logo]()
$207
This JetBlue deal was found by Cheapflights users on 11/5. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/112:45 pm -
1 stop8h 34m
Mon 12/149:29 pm -
Nonstop5h 29m
Deal found 11/5![JetBlue logo]()
$208
This Alaska Airlines deal was found by Cheapflights users on 11/9. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/36:13 pm -
Nonstop6h 42m
Mon 12/78:32 am -
Nonstop5h 36m
Deal found 11/9![Alaska Airlines logo]()
$209
This Expedia deal was found by Cheapflights users on 11/6. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/76:50 am -
Nonstop6h 34m
Mon 12/149:29 pm -
Nonstop5h 29m
Deal found 11/6![JetBlue logo]()
$210
This JetBlue deal was found by Cheapflights users on 11/6. 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.
Thu 12/105:45 am -
1 stop8h 38m
Tue 12/1510:35 am -
1 stop10h 42m
Deal found 11/6![JetBlue logo]()
$211
This Alaska Airlines deal was found by Cheapflights users on 11/9. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/46:13 pm -
Nonstop6h 42m
Sat 12/128:32 am -
Nonstop5h 36m
Deal found 11/9![Alaska Airlines logo]()
$213
This American Airlines deal was found by Cheapflights users on 11/9. 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.
Thu 12/35:58 pm -
1 stop8h 58m
Tue 12/812:00 pm -
1 stop7h 59m
Deal found 11/9![American Airlines logo]()
$214
This Super.com deal was found by Cheapflights users on 11/9. 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 12/44:05 pm -
Nonstop6h 34m
Mon 12/79:29 pm -
Nonstop5h 29m
Deal found 11/9![JetBlue logo]()
$217
Best flights from Boston to San DiegoDiscover carefully curated flight deals from Boston to San Diego that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 10, 2026.
Discover carefully curated flight deals from Boston to San Diego that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 10, 2026.
This Delta deal was found by Cheapflights users on 11/5. 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.
Sat 1/235:05 pm -
Nonstop6h 36m
Wed 2/1710:22 pm -
Nonstop5h 18m
Deal found 11/5![Delta logo]()
$217
This Southwest deal was found by Cheapflights users on 11/5. 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 12/18:25 am -
Nonstop6h 20m
Tue 12/811:25 am -
Nonstop5h 25m
Deal found 11/5![Southwest logo]()
$227
This JetBlue deal was found by Cheapflights users on 11/6. 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.
Thu 1/212:40 pm -
1 stop8h 40m
Sun 1/249:45 pm -
1 stop10h 02m
Deal found 11/6![JetBlue logo]()
$260
This Alaska Airlines deal was found by Cheapflights users on 11/5. 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.
Thu 12/36:13 pm -
Nonstop6h 42m
Fri 12/114:08 pm -
1 stop10h 32m
Deal found 11/5![Alaska Airlines logo]()
$302
This United Airlines deal was found by Cheapflights users on 11/6. 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.
Fri 12/119:20 am -
1 stop8h 35m
Mon 12/148:00 am -
1 stop8h 12m
Deal found 11/6![United Airlines logo]()
$379
This Alaska Airlines deal was found by Cheapflights users on 11/8. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/46:13 pm -
Nonstop6h 42m
Fri 12/114:08 pm -
1 stop10h 32m
Deal found 11/8![Alaska Airlines logo]()
$326
This JetBlue deal was found by Cheapflights users on 11/6. 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.
Thu 11/266:10 am -
Nonstop6h 30m
Fri 12/410:35 am -
1 stop10h 42m
Deal found 11/6![JetBlue logo]()
$335
This Southwest deal was found by Cheapflights users on 11/5. 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.
Sat 2/612:30 pm -
2 stops10h 45m
Thu 2/1110:35 pm -
1 stop9h 20m
Deal found 11/5![Southwest logo]()
$360
This Delta deal was found by Cheapflights users on 11/9. 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.
Thu 1/149:00 am -
1 stop8h 32m
Wed 1/2010:15 pm -
Nonstop5h 22m
Deal found 11/9![Delta logo]()
$375
This Southwest deal was found by Cheapflights users on 11/8. 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.
Thu 1/218:10 am -
2 stops10h 35m
Thu 1/2812:05 pm -
2 stops8h 45m
Deal found 11/8![Southwest logo]()
$364
This Southwest deal was found by Cheapflights users on 11/8. 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.
Wed 12/29:10 am -
2 stops10h 10m
Tue 12/810:55 am -
2 stops9h 50m
Deal found 11/8![Southwest logo]()
$364
This Southwest deal was found by Cheapflights users on 11/9. 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.
Mon 1/258:10 am -
2 stops13h 35m
Tue 2/211:25 am -
2 stops9h 25m
Deal found 11/9![Southwest logo]()
$374
Last-minute flights from Boston to San DiegoDiscover last-minute flight deals from Boston to San Diego. Data last updated November 10, 2026 and is based on user searches.
Discover last-minute flight deals from Boston to San Diego. Data last updated November 10, 2026 and is based on user searches.
This Alaska Airlines deal was found by Cheapflights users on 11/9. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/36:13 pm -
Nonstop6h 42m
Mon 12/78:32 am -
Nonstop5h 36m
Deal found 11/9![Alaska Airlines logo]()
$209
This American Airlines deal was found by Cheapflights users on 11/9. 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.
Thu 12/35:58 pm -
1 stop8h 58m
Tue 12/812:00 pm -
1 stop7h 59m
Deal found 11/9![American Airlines logo]()
$214
This Delta deal was found by Cheapflights users on 11/9. 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.
Fri 12/45:10 pm -
Nonstop6h 33m
Tue 12/1510:13 pm -
Nonstop5h 26m
Deal found 11/9![Delta logo]()
$213
This Super.com deal was found by Cheapflights users on 11/9. 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 12/44:05 pm -
Nonstop6h 34m
Mon 12/79:29 pm -
Nonstop5h 29m
Deal found 11/9![JetBlue logo]()
$217
This Expedia deal was found by Cheapflights users on 11/6. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/76:50 am -
Nonstop6h 34m
Mon 12/149:29 pm -
Nonstop5h 29m
Deal found 11/6![JetBlue logo]()
$210
This JetBlue deal was found by Cheapflights users on 11/5. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/105:45 am -
1 stop8h 38m
Thu 12/178:35 pm -
Nonstop5h 29m
Deal found 11/5![JetBlue logo]()
$207
This JetBlue deal was found by Cheapflights users on 11/6. 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.
Thu 12/105:45 am -
1 stop8h 38m
Tue 12/1510:35 am -
1 stop10h 42m
Deal found 11/6![JetBlue logo]()
$211
This JetBlue deal was found by Cheapflights users on 11/9. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/112:45 pm -
1 stop8h 34m
Tue 12/159:29 pm -
Nonstop5h 29m
Deal found 11/9![JetBlue logo]()
$205
This JetBlue deal was found by Cheapflights users on 11/5. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/112:45 pm -
1 stop8h 34m
Mon 12/149:29 pm -
Nonstop5h 29m
Deal found 11/5![JetBlue logo]()
$208
One-way flights from Boston to San DiegoSearch for one-way flight options from Boston to San Diego. Find affordable one-way fares based on user searches. Data last updated November 10, 2026.
Search for one-way flight options from Boston to San Diego. Find affordable one-way fares based on user searches. Data last updated November 10, 2026.
This American Airlines deal was found by Cheapflights users on 11/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/283:13 pm -
1 stop11h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/8![American Airlines logo]()
$115
This Delta deal was found by Cheapflights users on 11/5. 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 12/35:10 pm -
Nonstop6h 33m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/5![Delta logo]()
$119
This JetBlue deal was found by Cheapflights users on 11/7. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/1910:45 am -
1 stop11h 34m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/7![JetBlue logo]()
$122
This JetBlue deal was found by Cheapflights users on 11/10. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/112:45 pm -
1 stop8h 34m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/10![JetBlue logo]()
$123
This United Airlines deal was found by Cheapflights users on 11/9. 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.
Fri 1/156:01 pm -
1 stop9h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/9![United Airlines logo]()
$125
This Southwest deal was found by Cheapflights users on 11/9. 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 12/1110:10 am -
2 stops9h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/9![Southwest logo]()
$130
This Alaska Airlines deal was found by Cheapflights users on 11/5. 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.
Thu 12/177:40 am -
Nonstop6h 37m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/5![Alaska Airlines logo]()
$134
This Expedia deal was found by Cheapflights users on 11/7. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/18:32 am -
Nonstop6h 38m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/7![Alaska Airlines logo]()
$138
This Delta deal was found by Cheapflights users on 11/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/25:10 pm -
Nonstop6h 33m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/10![Delta logo]()
$139
This American Airlines deal was found by Cheapflights users on 11/5. 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.
Mon 1/46:00 am -
1 stop8h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/5![American Airlines logo]()
$144
This American Airlines deal was found by Cheapflights users on 11/9. 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.
Fri 12/185:27 am -
1 stop10h 47m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/9![American Airlines logo]()
$149
This American Airlines deal was found by Cheapflights users on 11/5. 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.
Mon 12/141:13 pm -
1 stop9h 21m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/5![American Airlines logo]()
$154
Find flight deals from Boston to San Diego
Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to San Diego (SAN). 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 November 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $202 (Cheapflightsfares) |
One-way from | $115 (American Airlines) |
Popular in | December |
Cheapest in | January |
Average price | $358 |
Good round-trip deal | $269 or less |
Good one-way deal | $150 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Boston to San Diego 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 November 10, 2026.
Use the filters below to find and compare flights from Boston to San Diego that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BostonSan Diego
BOS Boston Logan Intl - SAN San Diego
BOSSAN
Boston Logan Intl
Tue 12/8
5:10 am-11:50 am
2 stops9h 40m
San Diego
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$179
BostonSan Diego
BOS Boston Logan Intl - SAN San Diego
BOSSAN
Boston Logan Intl
Mon 12/21
8:05 pm-1:30 am
1 stop8h 25m
San Diego
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$180
BostonSan Diego
BOS Boston Logan Intl - SAN San Diego
BOSSAN
Boston Logan Intl
Sat 12/12
7:15 am-5:45 pm
2 stops13h 30m
San Diego
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$183
BostonSan Diego
BOS Boston Logan Intl - SAN San Diego
BOSSAN
Boston Logan Intl
Fri 11/27
9:12 am-3:12 pm
1 stop9h 00m
San Diego
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$188
BostonSan Diego
BOS Boston Logan Intl - SAN San Diego
BOSSAN
Boston Logan Intl
Sun 1/24
5:45 am-11:20 am
1 stop8h 35m
San Diego
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$192
BostonSan Diego
BOS Boston Logan Intl - SAN San Diego
BOSSAN
Boston Logan Intl
Fri 2/19
11:31 am-12:26 am
2 stops15h 55m
San Diego
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$195
BostonSan Diego
BOS Boston Logan Intl - SAN San Diego
BOSSAN
Boston Logan Intl
Sat 2/13
6:05 pm-11:45 pm
1 stop8h 40m
San Diego
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$195
BostonSan Diego
BOS Boston Logan Intl - SAN San Diego
BOSSAN
Boston Logan Intl
Wed 1/6
12:26 pm-10:31 pm
3 stops13h 05m
San Diego
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$200
BostonSan Diego
BOS Boston Logan Intl - SAN San Diego
BOSSAN
Boston Logan Intl
Sat 1/2
8:15 am-11:40 am
Nonstop6h 25m
San Diego
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$211
Quickest round-trip
BostonSan Diego
BOS Boston Logan Intl - SAN San Diego
BOSSAN
Boston Logan Intl
Thu 12/31
8:25 am-11:45 am
Nonstop6h 20m
San Diego
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$214
Showing 1-10 of 23 resultsSorted by cheapest first
Compare providers for flights from Boston to San Diego
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 Boston to San Diego in November.
| 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 Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Boston-San Diego flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boston-San Diego flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Boston-San Diego flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Boston-San Diego 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 Boston-San Diego 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 Boston to San Diego
Have a flexible travel schedule? Discover the best time to fly to San Diego from Boston with our price prediction graph.
BOS-SAN
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 Boston to San Diego
Prices
Airlines
Delays
How far ahead should I book a flight from Boston to San Diego?
The price you pay for your flight from Boston to San Diego may vary depending on when you book. For the best chance of a lower fare, look to book 33 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from Boston to San Diego?
Currently, January is the cheapest month in which you can book a flight from Boston to San Diego (average of $304). Flying from Boston to San Diego in December is currently the most expensive (average of $478). 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 BOS to SAN?
Find hourly flight availability from Boston to San Diego. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 10, 2026.
When flying from Boston to San Diego, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
How often are flights from Boston to San Diego delayed?
About 19% of weekly flights between Boston and San Diego have experienced delays in the past year, with the average delay time being 159 minutes.
What is the most punctual flight time for Boston to San Diego flights?
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Monday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Boston to San Diego flights?
Over the last year, JetBlue have had the lowest number of delays on this route, with just 15% of flights being delayed.
The best insider tips for Boston to San Diego 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 Boston to San Diego trip
Our travel experts
Reviews of airlines servicing San Diego
Get insights into the airlines that provide service to San Diego. 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 San Diego. Reviews last updated November 10, 2026.
Get a feel of what it's like to fly with Southwest,Alaska Airlines, andDelta from Boston to San Diego by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Crew
8.6
Entertainment
7.5
Overall
8.0
Comfort
8.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Boarding
8.1
Crew
8.6
Entertainment
7.5
Overall
8.0
Comfort
8.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Boarding
8.1
Crew
8.6
Entertainment
7.5
Overall
8.0
Comfort
8.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Boarding
8.1
Crew
8.6
Entertainment
7.5
Overall
8.0
Comfort
8.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Boarding
8.1
Crew
8.6
Entertainment
7.5
Overall
8.0
Comfort
8.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Boarding
8.1
Crew
8.6
Entertainment
7.5
Overall
8.0
Comfort
8.0
Food
7.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Related info for your journey
Find useful and relevant information for your journey from Boston to San Diego. 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 San Diego?
Book flights to San Diego if you plan to visit one of these locationsEl Cajon
National City
Chula Vista
San Ysidro
Poway
Coronado
La Mesa
Julian
Santee
Lemon Grove
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Top 6 airlines flying from Boston to San Diego
Discover the top 6 airlines that operate flights from Boston to San Diego. 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 November 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$135 | Average$370 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$181 | Average$362 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$196 | Average$398 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$236 | Average$413 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$237 | Average$391 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$244 | Average$454 | FlexibilityNo cancel fee | On-time71% |