$140+ 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 10/24. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SAN
Oct 28 — Nov 41
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 May, booked 88 days in advance, depart on a Wednesday or Tuesday and return on a Saturday
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 September 28, 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 September 28, 2026.
This JetBlue deal was found by Cheapflights users on 9/25. 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 10/311:00 pm -
1 stop10h 25m
Tue 11/179:40 pm -
1 stop10h 01m
Deal found 9/25![JetBlue logo]()
$251
This JetBlue deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/101:00 pm -
1 stop10h 22m
Tue 11/1711:48 am -
1 stop9h 00m
Deal found 9/26![JetBlue logo]()
$252
This Trip.com 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/247:51 am -
Nonstop6h 18m
Sat 10/318:15 am -
Nonstop5h 52m
Deal found 9/27![Alaska Airlines logo]()
$253
This JetBlue deal was found by Cheapflights users on 9/23. 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 11/121:00 pm -
1 stop10h 22m
Mon 11/169:40 pm -
1 stop10h 01m
Deal found 9/23![JetBlue logo]()
$255
This lol.travel deal was found by Cheapflights users on 9/24. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/243:35 pm -
Nonstop6h 11m
Sat 10/319:44 pm -
Nonstop5h 31m
Deal found 9/24![JetBlue logo]()
$256
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/47:03 am -
Nonstop6h 31m
Tue 11/108:03 am -
Nonstop5h 38m
Deal found 9/27![Alaska Airlines logo]()
$257
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/237:00 am -
Nonstop6h 09m
Mon 10/268:26 pm -
Nonstop5h 34m
Deal found 9/28![JetBlue logo]()
$258
This JetBlue deal was found by Cheapflights users on 9/23. 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 11/41:00 pm -
1 stop10h 25m
Mon 11/99:40 pm -
1 stop10h 01m
Deal found 9/23![JetBlue logo]()
$261
This JetBlue deal was found by Cheapflights users on 9/25. 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 11/181:00 pm -
1 stop10h 22m
Tue 12/110:35 am -
1 stop10h 42m
Deal found 9/25![JetBlue logo]()
$263
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 September 28, 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 September 28, 2026.
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 11/111:00 pm -
1 stop10h 22m
Mon 11/169:40 pm -
1 stop10h 01m
Deal found 9/27![JetBlue logo]()
$251
This Alaska Airlines deal was found by Cheapflights users on 9/23. 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 10/227:51 am -
Nonstop6h 18m
Sat 10/248:15 am -
Nonstop5h 52m
Deal found 9/23![Alaska Airlines logo]()
$307
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.
Fri 11/65:00 am -
2 stops9h 30m
Tue 11/1010:55 am -
2 stops9h 50m
Deal found 9/27![Southwest logo]()
$357
This JetBlue deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/279:30 am -
Nonstop6h 26m
Sat 10/3112:33 pm -
1 stop8h 16m
Deal found 9/23![JetBlue logo]()
$257
This JetBlue deal was found by Cheapflights users on 9/24. 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 10/243:35 pm -
Nonstop6h 11m
Sat 10/3112:33 pm -
1 stop8h 16m
Deal found 9/24![JetBlue logo]()
$257
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/119:03 am -
1 stop12h 44m
Mon 11/169:07 pm -
Nonstop5h 39m
Deal found 9/27![Alaska Airlines logo]()
$309
This JetBlue deal was found by Cheapflights users on 9/23. 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 10/299:30 am -
Nonstop6h 26m
Mon 11/211:40 am -
1 stop9h 09m
Deal found 9/23![JetBlue logo]()
$257
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.
Fri 10/231:12 pm -
1 stop9h 44m
Mon 10/269:40 pm -
1 stop10h 01m
Deal found 9/27![JetBlue logo]()
$260
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/127:03 am -
Nonstop6h 31m
Sun 11/156:15 am -
1 stop14h 43m
Deal found 9/27![Alaska Airlines logo]()
$335
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/207:40 am -
Nonstop6h 35m
Fri 11/278:05 am -
Nonstop5h 37m
Deal found 9/27![Alaska Airlines logo]()
$357
Last-minute flights from Boston to San DiegoDiscover last-minute flight deals from Boston to San Diego. Data last updated September 28, 2026 and is based on user searches.
Discover last-minute flight deals from Boston to San Diego. Data last updated September 28, 2026 and is based on user searches.
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/237:00 am -
Nonstop6h 09m
Mon 10/262:07 pm -
Nonstop5h 53m
Deal found 9/28![JetBlue logo]()
$258
This Trip.com 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/247:51 am -
Nonstop6h 18m
Sat 10/318:15 am -
Nonstop5h 52m
Deal found 9/27![Alaska Airlines logo]()
$253
This lol.travel deal was found by Cheapflights users on 9/24. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/243:35 pm -
Nonstop6h 11m
Sat 10/319:44 pm -
Nonstop5h 31m
Deal found 9/24![JetBlue logo]()
$256
This JetBlue deal was found by Cheapflights users on 9/23. 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 10/243:35 pm -
Nonstop6h 11m
Mon 10/269:40 pm -
1 stop10h 01m
Deal found 9/23![JetBlue logo]()
$257
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 10/2710:35 am -
Nonstop6h 15m
Tue 11/310:55 am -
2 stops9h 45m
Deal found 9/27![Southwest logo]()
$272
This JetBlue deal was found by Cheapflights users on 9/25. 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 10/311:00 pm -
1 stop10h 25m
Tue 11/39:40 pm -
1 stop10h 01m
Deal found 9/25![JetBlue logo]()
$251
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 September 28, 2026.
Search for one-way flight options from Boston to San Diego. Find affordable one-way fares based on user searches. Data last updated September 28, 2026.
This American Airlines deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/246:00 am -
1 stop8h 08m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/26![American Airlines logo]()
$140
This JetBlue deal was found by Cheapflights users on 9/24. 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 11/235:30 am -
1 stop8h 48m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![JetBlue logo]()
$143
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 10/2210:00 pm -
1 stop12h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/27![Southwest logo]()
$144
This Southwest deal was found by Cheapflights users on 9/24. 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 10/241:40 pm -
Nonstop6h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![Southwest logo]()
$145
This Super.com deal was found by Cheapflights users on 9/25. 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 12/115:45 am -
1 stop8h 38m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/25![JetBlue logo]()
$148
This Southwest deal was found by Cheapflights users on 9/25. 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 10/305:35 pm -
1 stop8h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/25![Southwest logo]()
$149
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.
Sat 11/149:30 am -
2 stops11h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/27![Southwest logo]()
$154
This American Airlines deal was found by Cheapflights users on 9/24. 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 10/164:48 pm -
1 stop9h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![American Airlines logo]()
$159
This Southwest deal was found by Cheapflights users on 9/23. 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 11/58:15 am -
Nonstop6h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/23![Southwest logo]()
$163
This Southwest deal was found by Cheapflights users on 9/25. 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 11/45:10 am -
2 stops9h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/25![Southwest logo]()
$164
This Super.com deal was found by Cheapflights users on 9/24. 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 11/205:30 am -
1 stop8h 48m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![JetBlue logo]()
$166
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 September 28, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $250 (Expedia) |
One-way from | $140 (American Airlines) |
Popular in | December |
Cheapest in | January |
Average price | $386 |
Good round-trip deal | $300 or less |
Good one-way deal | $202 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 September 28, 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
Quickest round-trip
BostonSan Diego
BOS Boston Logan Intl - SAN San Diego
BOSSAN
Boston Logan Intl
Tue 10/27
5:10 pm-8:28 pm
Nonstop6h 18m
San Diego
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$166
BostonSan Diego
BOS Boston Logan Intl - SAN San Diego
BOSSAN
Boston Logan Intl
Fri 11/20
8:15 am-11:40 am
Nonstop6h 25m
San Diego
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$169
BostonSan Diego
BOS Boston Logan Intl - SAN San Diego
BOSSAN
Boston Logan Intl
Sat 10/24
5:15 am-12:20 pm
2 stops10h 05m
San Diego
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$170
BostonSan Diego
BOS Boston Logan Intl - SAN San Diego
BOSSAN
Boston Logan Intl
Tue 10/27
2:50 pm-10:10 pm
2 stops10h 20m
San Diego
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$170
BostonSan Diego
BOS Boston Logan Intl - SAN San Diego
BOSSAN
Boston Logan Intl
Sat 10/31
7:03 am-2:38 pm
1 stop10h 35m
San Diego
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$176
BostonSan Diego
BOS Boston Logan Intl - SAN San Diego
BOSSAN
Boston Logan Intl
Fri 12/25
5:00 am-11:25 am
2 stops9h 25m
San Diego
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$202
BostonSan Diego
BOS Boston Logan Intl - SAN San Diego
BOSSAN
Boston Logan Intl
Thu 10/22
6:00 am-1:44 pm
1 stop10h 44m
San Diego
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$204
BostonSan Diego
BOS Boston Logan Intl - SAN San Diego
BOSSAN
Boston Logan Intl
Mon 11/23
5:00 pm-10:58 pm
1 stop8h 58m
San Diego
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$204
BostonSan Diego
BOS Boston Logan Intl - SAN San Diego
BOSSAN
Boston Logan Intl
Sat 10/10
6:14 pm-9:35 pm
Nonstop6h 21m
San Diego
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$229
BostonSan Diego
BOS Boston Logan Intl - SAN San Diego
BOSSAN
Boston Logan Intl
Tue 10/20
5:10 pm-8:28 pm
Nonstop6h 18m
San Diego
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$239
Showing 1-10 of 22 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 September.
| 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*3 stars | |
| Price Accuracy2 stars | Trust Score*1 star |
- 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 87 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 $319). Flying from Boston to San Diego in December is currently the most expensive (average of $469). 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 September 28, 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 September 28, 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.
Food
7.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Crew
8.6
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Food
7.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Crew
8.6
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Food
7.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Crew
8.6
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Food
7.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Crew
8.6
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Food
7.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Crew
8.6
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Food
7.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Crew
8.6
Overall
8.0
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.
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Book flights to San Diego if you plan to visit one of these locationsEl Cajon
National City
Chula Vista
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Poway
Coronado
La Mesa
Julian
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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 September 28, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$135 | Average$368 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$185 | Average$365 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$198 | Average$399 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$236 | Average$395 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$244 | Average$471 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$252 | Average$395 | FlexibilityNo cancel fee | On-time63% |