HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
San Diego

$125+ Cheap flights from Boston to San Diego (BOS - SAN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/31. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SAN
Feb 13 — Feb 201
Fri 2/13
Fri 2/20
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

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 October, booked 73 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

Cheap 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 January 14, 2026.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$227
(Delta)

One-way from

$125
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$323

Good round-trip deal

$287 or less

Good one-way deal

$158 or less
Provider with most accurate pricing for Boston Logan Intl-San Diego flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boston Logan Intl-San Diego flights.
Search Deals
From Boston Logan Intl to San Diego
Search Deals
One-way flight from Boston Logan Intl to San Diego
Search Deals
Highest demand for flights based on searches. 1% potential increase in price ($7 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals
Price to beat on a round-trip flight from Boston Logan Intl to San Diego.
Search Deals
Price to beat on a one-way flight from Boston Logan Intl to San Diego.
Search Deals

Find flight deals from Boston to San Diego

Cheapest flights from Boston to San Diego
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 January 14, 2026.

This Delta deal was found by Cheapflights users on 1/13. 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 2/195:05 pm
BOS
-
SAN
Nonstop6h 40m
Delta
Wed 2/259:55 pm
SAN
-
BOS
Nonstop5h 30m
Delta
Deal found 1/13$227
This JetBlue deal was found by Cheapflights users on 1/13. 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 2/224:00 pm
BOS
-
SAN
Nonstop6h 24m
JetBlue
Wed 2/253:35 pm
SAN
-
BOS
Nonstop5h 13m
JetBlue
Deal found 1/13$228
This Trip.com deal was found by Cheapflights users on 1/12. 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.
Mon 2/27:00 am
BOS
-
SAN
1 stop11h 29m
Alaska Airlines
Tue 2/109:10 am
SAN
-
BOS
Nonstop5h 29m
Alaska Airlines
Deal found 1/12$229
This Kiwi.com deal was found by Cheapflights users on 1/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/225:44 pm
BOS
-
SAN
Nonstop6h 45m
Hawaiian Airlines
Tue 3/38:39 am
SAN
-
BOS
1 stop12h 20m
Hawaiian Airlines
Deal found 1/14$231
This Alaska Airlines deal was found by Cheapflights users on 1/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/37:00 am
BOS
-
SAN
1 stop11h 29m
Alaska Airlines
Wed 2/119:10 am
SAN
-
BOS
Nonstop5h 29m
Alaska Airlines
Deal found 1/12$232
This JetBlue deal was found by Cheapflights users on 1/12. 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 2/64:54 pm
BOS
-
SAN
Nonstop6h 36m
JetBlue
Fri 2/138:34 pm
SAN
-
BOS
Nonstop5h 11m
JetBlue
Deal found 1/12$233
This Super.com deal was found by Cheapflights users on 1/11. 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 2/64:54 pm
BOS
-
SAN
Nonstop6h 36m
JetBlue
Mon 2/99:30 pm
SAN
-
BOS
Nonstop5h 25m
JetBlue
Deal found 1/11$234
This Delta deal was found by Cheapflights users on 1/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/105:10 pm
BOS
-
SAN
Nonstop6h 40m
Delta
Sat 2/149:55 pm
SAN
-
BOS
Nonstop5h 30m
Delta
Deal found 1/12$237
This JetBlue deal was found by Cheapflights users on 1/13. 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 2/224:00 pm
BOS
-
SAN
Nonstop6h 24m
JetBlue
Thu 2/268:44 pm
SAN
-
BOS
Nonstop5h 16m
JetBlue
Deal found 1/13$238
This CheapOair deal was found by Cheapflights users on 1/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/104:44 pm
BOS
-
SAN
Nonstop6h 36m
JetBlue
Thu 2/128:34 pm
SAN
-
BOS
Nonstop5h 11m
JetBlue
Deal found 1/13$239
This Delta deal was found by Cheapflights users on 1/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/35:10 pm
BOS
-
SAN
Nonstop6h 40m
Delta
Thu 2/510:04 pm
SAN
-
BOS
Nonstop5h 26m
Delta
Deal found 1/12$242
This Super.com deal was found by Cheapflights users on 1/12. 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 2/277:00 am
BOS
-
SAN
Nonstop6h 32m
JetBlue
Mon 3/28:44 pm
SAN
-
BOS
Nonstop5h 16m
JetBlue
Deal found 1/12$243

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 2,558,603 searches. Data last updated January 14, 2026.
Use the filters below to find and compare flights from Boston to San Diego that are best for you.

Fly from

Boston

Fly to

San Diego

Route

Depart

Return

Price

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Sat 2/21

5:05 pm-8:45 pm

Nonstop6h 40m

San Diego

Mon 2/23

9:55 pm-6:25 am

Nonstop5h 30m

$227

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Tue 2/3

4:20 pm-8:00 pm

Nonstop6h 40m

San Diego

Sat 2/7

6:15 am-11:54 pm

1 stop14h 39m

$232

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Tue 2/3

5:10 pm-8:50 pm

Nonstop6h 40m

San Diego

Wed 2/11

10:04 pm-6:30 am

Nonstop5h 26m

$237

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Mon 2/2

4:20 pm-8:00 pm

Nonstop6h 40m

San Diego

Tue 2/10

9:10 am-5:39 pm

Nonstop5h 29m

$237

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Fri 2/6

5:10 pm-8:50 pm

Nonstop6h 40m

San Diego

Mon 2/9

10:04 pm-6:30 am

Nonstop5h 26m

$237

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Thu 2/26

5:44 pm-9:29 pm

Nonstop6h 45m

San Diego

Tue 3/10

8:50 am-5:24 pm

Nonstop5h 34m

$237

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Tue 3/10

7:00 am-10:31 am

Nonstop6h 31m

San Diego

Tue 3/17

8:36 pm-5:00 am

Nonstop5h 24m

$247

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Thu 2/19

6:00 am-11:38 am

1 stop8h 38m

San Diego

Wed 2/25

10:30 pm-9:15 am

1 stop7h 45m

$247

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Thu 2/26

5:05 pm-8:45 pm

Nonstop6h 40m

San Diego

Mon 3/2

9:55 pm-6:25 am

Nonstop5h 30m

$247

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Fri 3/6

5:05 pm-8:45 pm

Nonstop6h 40m

San Diego

Fri 3/13

10:03 pm-6:25 am

Nonstop5h 22m

$247

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/13

Showing 1-10 of 24 results
1
2
3

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 January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
PricelinePrice Accuracy1 starTrust Score*3 stars
CheapOairPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
CheapfaremartPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Boston-San Diego flights, users find the pricing of CheapOair to be most consistent on Cheapflights vs. CheapOair Users can find the same prices on Boston-San Diego flight deals on Cheapflights vs. CheapOair >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 CheapOair the most. CheapOair 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.
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

How far ahead should I book a flight from Boston to San Diego?

Use this chart to determine the optimal time to book a round-trip flight from Boston to San Diego. Price data was last updated on January 9, 2026.

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 73 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, March is the cheapest month in which you can book a flight from Boston to San Diego (average of $118). Flying from Boston to San Diego in July is currently the most expensive (average of $197). 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 January 14, 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.

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
Airports
BOS

Use the FlyLogan App to pre-order food and save time at BOS. Most restaurants participate, making it a convenient option.

Read more about BOSBy Paul Rubio
SAN

Consider using the free San Diego Flyer shuttle for a budget-friendly transfer between SAN and the Old Town Transit Center.

Read more about SANBy Blane Bachelor
Our travel experts
Blane Bachelor

Blane Bachelor

Expert on SAN

Blane Bachelor

Blane Bachelor

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Read more
Paul Rubio

Paul Rubio

Expert on BOS

Paul Rubio

Paul Rubio

Travel journalist and photographer Paul Rubio is a Miami native (and current resident), who has lived in nine countries and traveled to 137. He is an expert in luxury travel, eco-travel, loyalty programs, hotels, airports and airlines. He is a contributing editor at AFAR, Condé Nast Traveler, LUXURY Magazine, and Palm Beach Illustrated.

Read more

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 January 14, 2026.
Get a feel of what it's like to fly with Alaska Airlines, Delta, and Hawaiian Airlines 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.
Alaska Airlines
7.9
Good
11,702 reviews

Boarding

8.1

Entertainment

7.0

Food

7.1

Crew

8.5

Comfort

7.8

Overall

7.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Alaska Airlines
7.9
Good
11,702 reviews
Alaska Airlines
7.9
Good
11,702 reviews

Boarding

8.1

Entertainment

7.0

Food

7.1

Crew

8.5

Comfort

7.8

Overall

7.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Delta
7.9
Good
8,040 reviews
Alaska Airlines
7.9
Good
11,702 reviews

Boarding

8.1

Entertainment

7.0

Food

7.1

Crew

8.5

Comfort

7.8

Overall

7.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Hawaiian Airlines
7.8
Good
2,827 reviews
Alaska Airlines
7.9
Good
11,702 reviews

Boarding

8.1

Entertainment

7.0

Food

7.1

Crew

8.5

Comfort

7.8

Overall

7.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
American Airlines
7.2
Good
11,122 reviews
Alaska Airlines
7.9
Good
11,702 reviews

Boarding

8.1

Entertainment

7.0

Food

7.1

Crew

8.5

Comfort

7.8

Overall

7.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
JetBlue
7.2
Good
2,884 reviews
Alaska Airlines
7.9
Good
11,702 reviews

Boarding

8.1

Entertainment

7.0

Food

7.1

Crew

8.5

Comfort

7.8

Overall

7.9

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.

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.

  • What airports do I use to fly from Boston to San Diego?

    To fly from Boston to San Diego, you need to book a flight from Logan Intl (BOS) to San Diego (SAN). Nonstop flights to San Diego from Boston Logan Intl take 6h 07m on average. When it comes time to book airfare, you have a few options: there are 10 outbound flights from Logan Intl to San Diego offered by 8 different airlines.

  • How popular is this Boston to San Diego flight route?

    Flights from Boston Logan Intl to San Diego have been viewed 13 times in the past calendar month.

  • How long is the flight from Boston to San Diego?

    Delta and Alaska Airlines can get you from Boston to San Diego in just under 6h 40m. Your travel time will be generally consistent. There are 2581 mi between Boston and San Diego. Most flights are nonstop.

  • What are the cheapest airlines flying from Boston to San Diego round-trip?

    Currently priced at $121, Delta will fly you from Boston to San Diego and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Spirit Airlines and Hawaiian Airlines - these airlines can fly you to your destination from $129 and $132, respectively. Delta is currently priced 67% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Boston to San Diego one-way?

    The cheapest airlines for a one-way flight from Boston to San Diego are Spirit Airlines ($97), Alaska Airlines ($118), and Hawaiian Airlines ($118).

  • What are the most reliable airlines from Boston to San Diego?

    No one likes to see their flight delayed. When booking a flight from Boston to San Diego consider choosing KLM (100%), TAP AIR PORTUGAL (84%) or JetBlue (84%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Boston to San Diego?

    The cheapest flight price from Boston to San Diego is $123. On average you can expect to pay $1,136. The most popular route, (Boston Logan Intl - San Diego), can usually be booked for $207.

  • Where are the most common layover locations when flying from Boston to San Diego?

    Boston to San Diego flights have a layover in Phoenix most often.

  • What are some popular things to do or see while on a layover in Phoenix?

    Most Phoenix visitors opt to spend their time experiencing Chase Field, Desert Ridge Marketplace, and Phoenix Symphony Hall. Chase Field, Desert Ridge Marketplace, and Phoenix Symphony Hall are located about 4.0 mi, 16.7 mi, and 4.3 mi, respectively from Phoenix Sky Harbor Intl. Travelers can book a car rental at Phoenix Sky Harbor Intl for about $52 per day to make their sightseeing more efficient.

  • Where are the least popular layover locations for Boston to San Diego flights?

    Flights departing from Boston and landing in San Diego layover in Chicago least frequently.

  • Can I find deals for flights from Boston to San Diego that include hotel bookings?

    Yes. In addition to deals on Boston to San Diego flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Boston to San Diego?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boston to San Diego.

  • Can I find deals for business class flights from Boston to San Diego?

    Yes. Cheapflights offers flight deals from Boston to San Diego by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Boston to San Diego?

    Currently, March is the cheapest month in which you can book a flight from Boston to San Diego (average of $118). Flying from Boston to San Diego in July is currently the most expensive (average of $197). 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.

See more FAQs

Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
El Cajon
Chula Vista
National City
Coronado
La Mesa
Poway
Julian
Lemon Grove

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Boston to San Diego

See prices for flight routes from nearby airports that may be better suited for you.
Boston to Las Vegas flights
Boston to Los Angeles flights
Boston to San Francisco flights
Hartford to Las Vegas flights
Boston to Ontario flights
Hartford to Los Angeles flights
Albany to Las Vegas flights
Boston to Reno flights
Boston to Palm Springs flights
Boston to Santa Ana flights
Boston to San Jose flights
Boston to Sacramento flights
Hartford to San Francisco flights
Hartford to Ontario flights
Boston to Burbank flights
Albany to Los Angeles flights
Hartford to Santa Ana flights
Hartford to San Diego flights
Albany to San Francisco flights
Boston to Oakland flights
Hartford to Palm Springs flights
Boston to San Luis Obispo flights
Albany to San Diego flights
Boston to Santa Barbara flights
Hartford to Reno flights
Hartford to Burbank flights
Boston to Fresno flights
Hartford to Long Beach flights
Worcester to Las Vegas flights
Albany to Reno flights
Albany to Ontario flights
Boston to Long Beach flights
Albany to Santa Ana flights
Hartford to Sacramento flights
Boston to Medford flights
Hartford to San Jose flights
Boston to Monterey flights
Albany to San Jose flights
Albany to Sacramento flights
Worcester to Los Angeles flights
Albany to Palm Springs flights
Albany to Burbank flights
Boston to Arcata flights
Albany to Fresno flights
Hartford to Oakland flights
Boston to Santa Rosa flights
Worcester to San Francisco flights
Hyannis to Los Angeles flights
Hyannis to Las Vegas flights

Top 8 airlines flying from Boston to San Diego

Discover the top 8 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 2,558,603 searches. Data last updated January 14, 2026.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$138Average$357FlexibilityNo cancel feeOn-time85%
Spirit AirlinesCheapest$140Average$306FlexibilityNo cancel feeOn-time65%
DeltaCheapest$145Average$349FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$198Average$372FlexibilityNo cancel feeOn-time62%
Alaska AirlinesCheapest$237Average$425FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$250Average$449FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$256Average$417FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$280Average$472FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.