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$139+ Cheap flights from San Diego to Boston (SAN - BOS)

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 12/13. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — BOS
Aug 26 — Sep 21
Tue 8/26
Tue 9/2
1 adult, Economy
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Cheapflights Tip: The best prices from San Diego to Boston Logan Intl are usually found in January or May, booked 67 days in advance, depart on a Wednesday or Friday and return on a Tuesday

Cheap flight deals from San Diego to Boston

Discover tips and strategies to find the most affordable flight options for your journey from San Diego (SAN) to Boston (BOS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 21, 2025.

Round-trip from

$190
(Mytrip)

One-way from

$139
(United Airlines)

Popular in

December

Cheapest in

January

Average price

$352

Good round-trip deal

$264 or less

Good one-way deal

$170 or less
From San Diego to Boston Logan Intl
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One-way flight from San Diego to Boston Logan Intl
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Highest demand for flights based on searches. 2% potential increase in price ($8 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from San Diego to Boston Logan Intl.
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Price to beat on a one-way flight from San Diego to Boston Logan Intl.
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Find flight deals from San Diego to Boston

Cheapest flights from San Diego to Boston
Explore the most affordable flight options available from San Diego to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 21, 2025.

This Mytrip deal was found by Cheapflights users on 8/19. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/87:47 pmSAN - BOS
2 stops12h 26mSpirit Airlines
Sat 9/136:10 amBOS - SAN
2 stops20h 24mSpirit Airlines
Deal found 8/19$184
This Mytrip deal was found by Cheapflights users on 8/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/96:15 amSAN - BOS
2 stops13h 32mSpirit Airlines
Sat 9/135:50 amBOS - SAN
2 stops20h 44mSpirit Airlines
Deal found 8/20$190
This Mytrip deal was found by Cheapflights users on 8/19. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/21:17 pmSAN - BOS
3 stops30h 17mSpirit Airlines
Thu 9/42:18 pmBOS - SAN
2 stops20h 11mSpirit Airlines
Deal found 8/19$193
This Mytrip deal was found by Cheapflights users on 8/19. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/51:35 pmSAN - BOS
2 stops18h 38mSpirit Airlines
Wed 9/106:10 amBOS - SAN
2 stops28h 19mSpirit Airlines
Deal found 8/19$194
This Mytrip deal was found by Cheapflights users on 8/19. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/47:47 pmSAN - BOS
2 stops12h 26mSpirit Airlines
Wed 9/105:50 amBOS - SAN
2 stops20h 44mSpirit Airlines
Deal found 8/19$206
This SmartFares deal was found by Cheapflights users on 8/19. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/49:35 pmSAN - BOS
Nonstop5h 50mAlaska Airlines
Wed 9/107:45 amBOS - SAN
Nonstop6h 05mAlaska Airlines
Deal found 8/19$212
This Trip.com deal was found by Cheapflights users on 8/20. 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.
Wed 9/176:15 amSAN - BOS
2 stops13h 32mMultiple Airlines
Tue 9/237:45 amBOS - SAN
Nonstop6h 05mMultiple Airlines
Deal found 8/20$215
This Mytrip deal was found by Cheapflights users on 8/19. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/166:15 amSAN - BOS
2 stops13h 32mSpirit Airlines
Tue 9/235:50 amBOS - SAN
2 stops20h 44mSpirit Airlines
Deal found 8/19$218
This flygcity.se deal was found by Cheapflights users on 8/19. 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 flygcity.se is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/48:55 pmSAN - BOS
Nonstop5h 45mJetBlue
Wed 9/103:45 pmBOS - SAN
Nonstop6h 13mJetBlue
Deal found 8/19$221

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Diego to Boston that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 21, 2025.
Use the filters below to find and compare flights from San Diego to Boston that are best for you.

Fly from

San Diego

Fly to

Boston

Route

Depart

Return

Price

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Wed 9/17

6:15 am-10:47 pm

2 stops13h 32m

Boston Logan Intl

Tue 9/23

7:45 am-10:50 am

Nonstop6h 05m

$215

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Thu 9/4

9:35 pm-6:25 am

Nonstop5h 50m

Boston Logan Intl

Fri 9/5

7:45 am-10:50 am

Nonstop6h 05m

$231

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Sun 9/14

9:35 pm-6:25 am

Nonstop5h 50m

Boston Logan Intl

Sat 9/20

7:45 am-10:50 am

Nonstop6h 05m

$237

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Wed 10/1

8:55 pm-5:40 am

Nonstop5h 45m

Boston Logan Intl

Tue 10/7

7:16 am-10:30 am

Nonstop6h 14m

$237

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Mon 9/22

10:13 pm-6:50 am

Nonstop5h 37m

Boston Logan Intl

Thu 9/25

5:35 pm-8:44 pm

Nonstop6h 09m

$237

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Sun 9/14

9:35 pm-6:25 am

Nonstop5h 50m

Boston Logan Intl

Tue 9/16

7:45 am-10:50 am

Nonstop6h 05m

$237

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Fri 9/19

9:35 pm-6:25 am

Nonstop5h 50m

Boston Logan Intl

Sun 9/21

7:45 am-10:50 am

Nonstop6h 05m

$237

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Thu 11/6

11:50 am-8:26 pm

Nonstop5h 36m

Boston Logan Intl

Sun 11/9

7:00 am-10:39 am

Nonstop6h 39m

$237

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Mon 9/15

9:35 pm-6:25 am

Nonstop5h 50m

Boston Logan Intl

Fri 9/19

7:45 am-10:50 am

Nonstop6h 05m

$237

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Fri 9/26

9:35 pm-6:20 am

Nonstop5h 45m

Boston Logan Intl

Tue 9/30

3:45 pm-6:58 pm

Nonstop6h 13m

$237

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/19

Showing 1-10 of 18 results
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The best insider tips for San Diego to Boston flights

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.
Cheapflights partnered with top experts to bring you the best recommendations for your San Diego to Boston trip
Airports
SAN

Plan for traffic congestion around SAN, especially during peak times. Arrive early to avoid a last-minute rush to your gate.

Read more about SANby Blane Bachelor
BOS

Use the FlyLogan App for real-time flight updates and pre-order food with BOS2GO for a smooth arrival experience.

Read more about BOSby Paul Rubio
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

Best time to book a flight from San Diego to Boston

Have a flexible travel schedule? Discover the best time to fly to Boston from San Diego with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from San Diego to Boston

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

Use this chart to determine the optimal time to book a round-trip flight from San Diego to Boston. Price data was last updated on August 8, 2025.

To ensure you get the cheapest price possible for a flight from San Diego to Boston, you should look to book at least 67 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, January is the cheapest month in which you can book a flight from San Diego to Boston (average of $218). Flying from San Diego to Boston in July is currently the most expensive (average of $311). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SAN to BOS?

Find hourly flight availability from San Diego to Boston. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 21, 2025.

When flying from San Diego to Boston, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 34% versus a flight in the morning.

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

Use this chart to determine the cheapest time to fly round-trip from San Diego to Boston. Price data was last updated on August 17, 2025.

Travelers seeking maximum savings on their San Diego to Boston flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Boston

Get insights into the airlines that provide service to Boston. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Boston. Reviews last updated August 21, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Delta, and Hawaiian Airlines from San Diego to Boston to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Comfort

7.8

Crew

8.5

Food

7.1

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Comfort

7.8

Crew

8.5

Food

7.1

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,981 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Comfort

7.8

Crew

8.5

Food

7.1

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Hawaiian Airlines
7.8
Good
2,672 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Comfort

7.8

Crew

8.5

Food

7.1

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Comfort

7.8

Crew

8.5

Food

7.1

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
JetBlue
7.2
Good
2,916 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Comfort

7.8

Crew

8.5

Food

7.1

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Related info for your journey

Find useful and relevant information for your journey from San Diego to Boston. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    If you book a flight from San Diego to Boston, you will be flying from San Diego to Logan Intl. Flights to Boston Logan Intl (BOS) from San Diego (SAN) take 5h 13m for a nonstop flight. There are 15 flights from San Diego to Boston per day from 9 airlines.

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

    Flights from San Diego to Boston Logan Intl have been viewed 15 times in the past calendar month.

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

    For as low as $231, Hawaiian Airlines can have you in Boston from San Diego in 5h 50m. There are 2581 mi between San Diego and Boston. All flights are typically nonstop.

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

    Our cheapest airline available from San Diego to Boston is Frontier. Our recent data shows that you can find tickets from as low as $84 on this airline. Additional options worth looking into are Spirit Airlines and Hawaiian Airlines, starting at $118 and $138 round-trip. Users have found that Frontier is 77% cheaper than the other options available to this destination.

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

    To fly one-way, consider booking your trip with Southwest, which is currently one of the cheapest options available, starting at $139. JetBlue flights start at $139 while deals on United Airlines start at $139 one-way.

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

    Before booking your flight to Boston from San Diego, check out the most reliable airlines to get you to your destination on time: Japan Airlines (92%), Air France (88%), EL AL( 83%).

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

    The cheapest flight price from San Diego to Boston is $118. On average you can expect to pay $571. The most popular route, (San Diego - Boston Logan Intl), can usually be booked for $190.

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

    Most of the time, San Diego to Boston flights that have layovers will stop in Phoenix. Phoenix is followed by Chicago in terms of the most popular layover location on flights from San Diego to Boston.

  • 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 rent a car at Phoenix Sky Harbor Intl for an average daily rate of $56 to make sightseeing during their layover a little easier.

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

    Magnificent Mile, River North, and Grant Park are currently the most popular points of interest in Chicago at the moment. Magnificent Mile, River North and Grant Park are located about 15.5 mi, 15.0 mi, and 16.2 mi, respectively from Chicago O'Hare Intl if you are interested in checking them out. Travelers in need of a car in Chicago can rent one for about $66 per day.

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

    San Diego to Boston flights have a layover in Chicago least often.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from San Diego to Boston 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 San Diego to Boston?

    Currently, January is the cheapest month in which you can book a flight from San Diego to Boston (average of $218). Flying from San Diego to Boston in July is currently the most expensive (average of $311). 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
Cambridge
Medford
Watertown
Hampton Beach
Waltham
Seabrook
Lowell
Lincoln
Smithfield
Cranston
Chestnut Hill
Warwick
Peabody
Quincy
York Beach
Chelsea
Swansea
Saugus
Burlington
Braintree

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Top 9 airlines flying from San Diego to Boston

Discover the top 9 airlines that operate flights from San Diego to Boston. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$84Average$168FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$118Average$249FlexibilityNo cancel feeOn-time65%
Hawaiian AirlinesCheapest$138Average$346FlexibilityNo cancel feeOn-time85%
DeltaCheapest$157Average$354FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$173Average$366FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$238Average$439FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$240Average$437FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$256Average$456FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$269Average$449FlexibilityNo cancel feeOn-time63%

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