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$119+ 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 3/26. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SAN
Mar 2 — Mar 91
Sun 3/2
Sun 3/9
1 adult, Economy
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The best prices from Boston Logan Intl to San Diego are usually found in January or May, booked 53 days in advance, depart on a Tuesday or Wednesday and return on a Friday

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 February 25, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$193
(Booking.com)

One-way from

$119
(Delta)

Popular in

December

Cheapest in

January

Average price

$371

Good round-trip deal

$302 or less

Good one-way deal

$163 or less
Provider with most accurate pricing for Boston Logan Intl-San Diego flight deals.
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Provider most trusted by Cheapflights users for Boston Logan Intl-San Diego flights.
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From Boston Logan Intl to San Diego
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One-way flight from Boston Logan Intl to San Diego
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High demand for flights, 2% potential price rise
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Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Price to beat on a round-trip flight from Boston Logan Intl to San Diego.
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Price to beat on a one-way flight from Boston Logan Intl to San Diego.
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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 February 25, 2025.

This Booking.com deal was found by Cheapflights users on 2/23. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/1212:15 pmBOS - SAN
2 stops22h 15mSpirit Airlines
Wed 3/198:07 pmSAN - BOS
2 stops18h 07mSpirit Airlines
Deal found 2/23$193
This Expedia deal was found by Cheapflights users on 2/24. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/24:49 pmBOS - SAN
Nonstop6h 47mMultiple Airlines
Thu 4/109:08 pmSAN - BOS
2 stops12h 50mMultiple Airlines
Deal found 2/24$222
This Southwest deal was found by Cheapflights users on 2/24. 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.
Mon 4/71:55 pmBOS - SAN
1 stop11h 10mSouthwest
Tue 4/159:20 pmSAN - BOS
1 stop7h 50mSouthwest
Deal found 2/24$226
This Delta deal was found by Cheapflights users on 2/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/295:10 pmBOS - SAN
Nonstop6h 33mDelta
Sat 4/510:00 pmSAN - BOS
Nonstop5h 27mDelta
Deal found 2/25$237
This Alaska Airlines deal was found by Cheapflights users on 2/25. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/264:49 pmBOS - SAN
Nonstop6h 47mAlaska Airlines
Wed 4/26:59 pmSAN - BOS
1 stop18h 28mAlaska Airlines
Deal found 2/25$247
This American Airlines deal was found by Cheapflights users on 2/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/295:50 amBOS - SAN
1 stop8h 58mAmerican Airlines
Sat 4/59:20 amSAN - BOS
1 stop7h 41mAmerican Airlines
Deal found 2/25$258
This JetBlue deal was found by Cheapflights users on 2/24. 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.
Sun 5/2510:30 amBOS - SAN
1 stop11h 45mJetBlue
Mon 6/28:27 pmSAN - BOS
Nonstop5h 40mJetBlue
Deal found 2/24$287
This United Airlines deal was found by Cheapflights users on 2/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/213:31 pmBOS - SAN
1 stop9h 11mUnited Airlines
Mon 3/246:50 pmSAN - BOS
1 stop7h 59mUnited Airlines
Deal found 2/25$297
This Kiwi.com deal was found by Cheapflights users on 2/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/294:49 pmBOS - SAN
Nonstop6h 47mHawaiian Airlines
Sat 4/59:30 amSAN - BOS
1 stop11h 29mHawaiian Airlines
Deal found 2/24$316

Find flights from Boston to San Diego within your budget

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 February 25, 2025.

Fly from

Boston

Fly to

San Diego

Route

Depart

Return

Price

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Wed 3/12

12:15 pm-7:30 am

2 stops22h 15m

San Diego

Wed 3/19

8:07 pm-5:14 pm

2 stops18h 07m

$193

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Wed 4/2

4:49 pm-8:36 pm

Nonstop6h 47m

San Diego

Thu 4/10

9:08 pm-12:58 pm

2 stops12h 50m

$222

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Mon 4/7

1:55 pm-10:05 pm

1 stop11h 10m

San Diego

Tue 4/15

9:20 pm-8:10 am

1 stop7h 50m

$226

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Sat 3/29

5:10 pm-8:43 pm

Nonstop6h 33m

San Diego

Sat 4/5

10:00 pm-6:27 am

Nonstop5h 27m

$237

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Wed 3/26

4:49 pm-8:36 pm

Nonstop6h 47m

San Diego

Wed 4/2

6:59 pm-4:27 pm

1 stop18h 28m

$247

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Sat 3/29

5:50 am-11:48 am

1 stop8h 58m

San Diego

Sat 4/5

9:20 am-8:01 pm

1 stop7h 41m

$258

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Sun 5/25

10:30 am-7:15 pm

1 stop11h 45m

San Diego

Mon 6/2

8:27 pm-5:07 am

Nonstop5h 40m

$287

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Fri 3/21

3:31 pm-9:42 pm

1 stop9h 11m

San Diego

Mon 3/24

6:50 pm-5:49 am

1 stop7h 59m

$297

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Sat 3/29

4:49 pm-8:36 pm

Nonstop6h 47m

San Diego

Sat 4/5

9:30 am-11:59 pm

1 stop11h 29m

$316

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Wed 3/26

5:10 pm-8:43 pm

Nonstop6h 33m

$119

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/24

Showing 1-10 of 19 results
1
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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 February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*2 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
CheapfaremartPrice Accuracy-Trust Score*3 stars
FlightnetworkPrice Accuracy-Trust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars

*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 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.

The best insider tips for Boston to San Diego flights

Find out what our experts recommend to make the most of your Boston to San Diego trip
Airlines
JetBlue

JetBlue's Even More Space seats offer up to 38 inches of legroom and early boarding.


JetBlue provides free onboard Wi-Fi and seatback screens for entertainment.

Read more about JetBlueby Blane Bachelor
Delta

Delta offers free Wi-Fi for SkyMiles members, enhancing productivity on longer flights.


Delta Comfort Plus provides extra legroom and early boarding, ideal for longer flights.

Read more about Deltaby Harriet Baskas
Alaska Airlines

Alaska Airlines' Premium Class offers extra legroom and free cocktails, enhancing comfort.


Alaska Airlines provides Wi-Fi for a flat fee, ideal for business travelers.

Read more about Alaska Airlinesby Robert Schrader
American Airlines

American Airlines' Main Cabin Extra offers 34-35 inches of legroom for added comfort.


American Airlines provides priority boarding for Main Cabin Extra passengers.

Read more about American Airlinesby Marisa Garcia
Airports
BOS

For a scenic arrival, consider the water taxi from BOS to downtown Boston. It's a unique and charming option for first-time visitors.

Read more about BOSby Paul Rubio
SAN

Use the free San Diego Flyer shuttle for a cost-effective transfer between SAN and the Old Town Transit Center, running every 20-30 minutes.

Read more about SANby Blane Bachelor
Our travel experts
Blane Bachelor

Blane Bachelor

Expert on JetBlue and 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
Harriet Baskas

Harriet Baskas

Expert on Delta

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
Robert Schrader

Robert Schrader

Expert on Alaska Airlines

Robert Schrader

Robert Schrader

One of the web's original travel bloggers, Robert launched his first site Leave Your Daily Hell in 2009. Since then, he's expanded into destination niche sites (one each for Japan, Thailand and Taiwan), in addition to having written for the inflight magazines of Singapore Airlines and Korean Air. Overall, he's visited nearly 100 countries, and flies business as often as possible.

Read more
Marisa Garcia

Marisa Garcia

Expert on American Airlines

Marisa Garcia

Marisa Garcia

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialized in airline interiors and regulations. Ten years ago, she pivoted to journalism. She shares her insights in leading aviation, travel, and business publications and on her site FlightChic.

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

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.

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.

Travel insights for flights from Boston to San Diego

Get recent, data-driven insights about flights from Boston to San Diego including ideal travel times, pricing trends, and more.

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 February 14, 2025.

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 53 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, August is the cheapest month in which you can book a flight from Boston to San Diego (average of $286). Flying from Boston to San Diego in March is currently the most expensive (average of $366). 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 February 25, 2025.

When flying from Boston to San Diego, 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 56% versus a flight in the morning.

What is the cheapest day to fly from Boston to San Diego?

Use this chart to determine the cheapest time to fly round-trip from Boston to San Diego. Price data was last updated on February 23, 2025.

Travelers seeking maximum savings on their Boston to San Diego flight should consider departing on Wednesday evenings 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.

Weekly flight availability from Boston to San Diego

Explore weekly flight availability from Boston to San Diego. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated February 25, 2025.

The most flights from BOS to SAN are scheduled on a Monday (8 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (4 on average).

Rainfall in San Diego by month

Plan your trip to San Diego by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Diego ranges from 0.0 - 2.3 inches per month. February is typically the wettest month, when rainfall can reach 2.3 in. July is typically the driest time to visit San Diego when rainfall is around 0.0 in.

Temperature in San Diego by month

Plan your trip to San Diego by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Diego, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 57.2 F).

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 February 25, 2025.
Read reviews from past customers who have flown Southwest, Alaska Airlines and Delta from Boston to San Diego. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,374 reviews

Overall

8.1

Comfort

8.1

Crew

8.7

Boarding

8.2

Entertainment

7.6

Food

7.1

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Southwest
8.1
Very good
4,374 reviews
Southwest
8.1
Very good
4,374 reviews

Overall

8.1

Comfort

8.1

Crew

8.7

Boarding

8.2

Entertainment

7.6

Food

7.1

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Alaska Airlines
8.0
Very good
9,713 reviews
Southwest
8.1
Very good
4,374 reviews

Overall

8.1

Comfort

8.1

Crew

8.7

Boarding

8.2

Entertainment

7.6

Food

7.1

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Delta
8.0
Very good
8,163 reviews
Southwest
8.1
Very good
4,374 reviews

Overall

8.1

Comfort

8.1

Crew

8.7

Boarding

8.2

Entertainment

7.6

Food

7.1

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Hawaiian Airlines
7.9
Good
2,312 reviews
Southwest
8.1
Very good
4,374 reviews

Overall

8.1

Comfort

8.1

Crew

8.7

Boarding

8.2

Entertainment

7.6

Food

7.1

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

JetBlue
7.4
Good
3,051 reviews
Southwest
8.1
Very good
4,374 reviews

Overall

8.1

Comfort

8.1

Crew

8.7

Boarding

8.2

Entertainment

7.6

Food

7.1

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

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 09m on average. When it comes time to book airfare, you have a few options: there are 5 outbound flights from Logan Intl to San Diego offered by 10 different airlines.

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

    Flights from Boston Logan Intl to San Diego have been viewed 22 times in the past calendar month.

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

    Currently priced at $193, Spirit Airlines will fly you from Boston to San Diego and back. In addition to Spirit Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Southwest and Delta - these airlines can fly you to your destination from $226 and $237, respectively. Spirit Airlines is currently priced 51% 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 Delta ($119), Spirit Airlines ($120), and Southwest ($124).

  • 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 JetBlue (81%), Hawaiian Airlines (80%) or American Airlines (78%) 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 $98. On average you can expect to pay $1,150. The most popular route, (Boston Logan Intl - San Diego), can usually be booked for $181.

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

    Boston to San Diego flights have a layover in Chicago most often. Phoenix follows Chicago in terms of the most common layover location on Boston to San Diego flights. Las Vegas follows Phoenix in terms of the most frequent layover location on Boston to San Diego flights.

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

    Most Chicago visitors opt to spend their time experiencing Magnificent Mile, Grant Park, and River North. Magnificent Mile, Grant Park, and River North are located about 15.5 mi, 16.2 mi, and 15.0 mi, respectively from Chicago O'Hare Intl. Travelers can book a car rental at Chicago O'Hare Intl for about $48 per day to make their sightseeing more efficient.

  • What are some popular points of interest to see during a layover in Phoenix?

    Phoenix travelers tend to visit Chase Field, Desert Ridge Marketplace, and Phoenix Symphony Hall more than any other notable places. 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 if you are interested in checking them out. Those landing in Phoenix looking to spend some time exploring during their layover can rent a car for about $58 per day.

  • What are points of interest worth seeing during a layover in Las Vegas?

    If you're on a layover in Las Vegas and looking for things to do, consider visiting Fremont Street Experience, Colosseum at Caesars Palace, or Stratosphere Tower. Fremont Street Experience, Colosseum at Caesars Palace, and Stratosphere Tower can be visited by traveling about 5.9 mi, 2.6 mi, and 4.3 mi respectively from Las Vegas Harry Reid Intl. Travelers in need of a car in Las Vegas can rent one for about $49 per day.

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

    Flights departing from Boston and landing in San Diego layover in Charlotte least frequently. Washington, D.C. sees the next fewest layovers on Boston to San Diego flights. Philadelphia comes in third to last in terms of the least popular layover locations on Boston to San Diego flights.

  • 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, August is the cheapest month in which you can book a flight from Boston to San Diego (average of $286). Flying from Boston to San Diego in March is currently the most expensive (average of $366). 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 Boston?

Book flights to Boston if you plan to visit one of these locations
El Cajon
Chula Vista
Lemon Grove
National City
Imperial Beach
La Mesa
Alpine
Poway
Santee
Coronado
Borrego Springs

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Alternative routes for Boston to San Diego

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Boston to San Diego

Discover the top 10 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 February 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$84Average$194FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$115Average$245FlexibilityNo cancel feeOn-time65%
DeltaCheapest$163Average$396FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$163Average$407FlexibilityNo cancel feeOn-time85%
Sun Country AirCheapest$166Average$372FlexibilityNo cancel feeOn-time83%
JetBlueCheapest$185Average$414FlexibilityNo cancel feeOn-time62%
Alaska AirlinesCheapest$192Average$434FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$227Average$470FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$265Average$464FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$316Average$501FlexibilityNo cancel feeOn-time63%
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