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$118+ 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 12/25. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — BOS
Dec 24 — Dec 311
Wed 12/24
Wed 12/31
1 adult, Economy
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Find cheap flights from San Diego to Boston 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

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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 November 24, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$219
(Kiwi.com)

One-way from

$118
(American Airlines)

Popular in

December

Cheapest in

January

Average price

$438

Good round-trip deal

$244 or less

Good one-way deal

$169 or less
Provider with most accurate pricing for San Diego-Boston Logan Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Diego-Boston Logan Intl flights.
Search Deals
From San Diego to Boston Logan Intl
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One-way flight from San Diego to Boston Logan Intl
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($25 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals
Price to beat on a round-trip flight from San Diego to Boston Logan Intl.
Search Deals
Price to beat on a one-way flight from San Diego to Boston Logan Intl.
Search Deals

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 November 24, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/259:35 amSAN - BOS
Nonstop5h 48mAlaska Airlines
Wed 1/74:20 pmBOS - SAN
Nonstop6h 40mAlaska Airlines
Deal found 11/23$219
This Delta deal was found by Cheapflights users on 11/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2410:15 pmSAN - BOS
Nonstop5h 30mDelta
Wed 1/75:10 pmBOS - SAN
Nonstop6h 40mDelta
Deal found 11/23$221
This Kiwi.com deal was found by Cheapflights users on 11/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/259:35 amSAN - BOS
Nonstop5h 48mAlaska Airlines
Tue 1/64:45 pmBOS - SAN
Nonstop6h 33mAlaska Airlines
Deal found 11/23$227
This Delta deal was found by Cheapflights users on 11/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2410:15 pmSAN - BOS
Nonstop5h 30mDelta
Tue 1/65:10 pmBOS - SAN
Nonstop6h 40mDelta
Deal found 11/23$231
This Kiwi.com deal was found by Cheapflights users on 11/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/259:35 amSAN - BOS
Nonstop5h 48mAlaska Airlines
Fri 1/94:20 pmBOS - SAN
Nonstop6h 40mAlaska Airlines
Deal found 11/23$234
This Delta deal was found by Cheapflights users on 11/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2410:15 pmSAN - BOS
Nonstop5h 30mDelta
Thu 1/85:10 pmBOS - SAN
Nonstop6h 40mDelta
Deal found 11/23$236
This United Airlines deal was found by Cheapflights users on 11/21. 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.
Tue 12/1612:50 pmSAN - BOS
1 stop7h 51mUnited Airlines
Wed 12/179:40 amBOS - SAN
1 stop8h 50mUnited Airlines
Deal found 11/21$242
This Delta deal was found by Cheapflights users on 11/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1210:20 pmSAN - BOS
Nonstop5h 30mDelta
Mon 12/155:25 pmBOS - SAN
Nonstop6h 34mDelta
Deal found 11/22$247
This Kiwi.com deal was found by Cheapflights users on 11/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/259:35 amSAN - BOS
Nonstop5h 48mAlaska Airlines
Mon 1/56:30 amBOS - SAN
Nonstop6h 30mAlaska Airlines
Deal found 11/23$249
This JetBlue deal was found by Cheapflights users on 11/24. 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.
Wed 12/248:44 pmSAN - BOS
Nonstop5h 25mJetBlue
Mon 1/56:50 amBOS - SAN
Nonstop6h 29mJetBlue
Deal found 11/24$251
This JetBlue deal was found by Cheapflights users on 11/22. 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 12/98:31 pmSAN - BOS
Nonstop5h 31mJetBlue
Sat 12/134:34 pmBOS - SAN
Nonstop6h 36mJetBlue
Deal found 11/22$252

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 November 24, 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

Tue 1/20

9:07 pm-3:20 pm

1 stop15h 13m

Boston Logan Intl

Tue 1/27

7:00 am-3:29 pm

1 stop11h 29m

$246

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Wed 12/24

10:15 pm-6:45 am

Nonstop5h 30m

Boston Logan Intl

Mon 1/5

5:10 pm-8:50 pm

Nonstop6h 40m

$251

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Tue 12/9

8:31 pm-5:02 am

Nonstop5h 31m

Boston Logan Intl

Sat 12/13

4:34 pm-8:10 pm

Nonstop6h 36m

$252

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Fri 1/16

10:04 pm-6:30 am

Nonstop5h 26m

Boston Logan Intl

Mon 1/19

5:10 pm-8:50 pm

Nonstop6h 40m

$257

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Tue 12/9

10:20 pm-6:50 am

Nonstop5h 30m

Boston Logan Intl

Sun 12/14

5:25 pm-8:59 pm

Nonstop6h 34m

$262

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Wed 1/21

10:30 am-10:30 pm

2 stops9h 00m

Boston Logan Intl

Wed 1/28

6:50 am-4:45 pm

2 stops12h 55m

$267

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Thu 1/8

6:20 am-4:50 pm

1 stop7h 30m

Boston Logan Intl

Wed 1/14

1:20 pm-8:50 pm

2 stops10h 30m

$277

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Fri 12/12

9:15 am-5:52 pm

Nonstop5h 37m

Boston Logan Intl

Sun 12/14

6:52 pm-8:39 am

1 stop16h 47m

$277

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Tue 12/9

8:31 pm-5:02 am

Nonstop5h 31m

Boston Logan Intl

Thu 12/11

3:50 pm-7:21 pm

Nonstop6h 31m

$282

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Thu 1/8

9:37 am-11:54 pm

1 stop11h 17m

Boston Logan Intl

Fri 1/9

4:20 pm-8:00 pm

Nonstop6h 40m

$282

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/22

Showing 1-10 of 24 results
1
2
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Compare providers for flights from San Diego to Boston

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 San Diego to Boston in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
CheapOairPrice Accuracy3 starsTrust Score*3 stars
Trip.comPrice Accuracy2 starsTrust 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 San Diego-Boston flights, users find the pricing of CheapOair to be most consistent on Cheapflights vs. CheapOair Users can find the same prices on San Diego-Boston flight deals on Cheapflights vs. CheapOair >95% of the time. Price accuracy is based on data collected from San Diego-Boston flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Diego-Boston 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 San Diego-Boston 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 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 November 21, 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, March is the cheapest month in which you can book a flight from San Diego to Boston (average of $98). Flying from San Diego to Boston in June is currently the most expensive (average of $188). 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 November 24, 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 30% 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 November 2, 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 afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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

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 November 24, 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
11,340 reviews

Food

7.1

Comfort

7.8

Boarding

8.1

Crew

8.5

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

LAX - LIH

The staff were exceptional! They all were kind, accommodating, and professional.
Alaska Airlines
8.0
Very good
11,340 reviews
Alaska Airlines
8.0
Very good
11,340 reviews

Food

7.1

Comfort

7.8

Boarding

8.1

Crew

8.5

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

LAX - LIH

The staff were exceptional! They all were kind, accommodating, and professional.
Delta
7.9
Good
7,998 reviews
Alaska Airlines
8.0
Very good
11,340 reviews

Food

7.1

Comfort

7.8

Boarding

8.1

Crew

8.5

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

LAX - LIH

The staff were exceptional! They all were kind, accommodating, and professional.
Hawaiian Airlines
7.8
Good
2,813 reviews
Alaska Airlines
8.0
Very good
11,340 reviews

Food

7.1

Comfort

7.8

Boarding

8.1

Crew

8.5

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

LAX - LIH

The staff were exceptional! They all were kind, accommodating, and professional.
American Airlines
7.2
Good
11,042 reviews
Alaska Airlines
8.0
Very good
11,340 reviews

Food

7.1

Comfort

7.8

Boarding

8.1

Crew

8.5

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

LAX - LIH

The staff were exceptional! They all were kind, accommodating, and professional.
JetBlue
7.2
Good
2,903 reviews
Alaska Airlines
8.0
Very good
11,340 reviews

Food

7.1

Comfort

7.8

Boarding

8.1

Crew

8.5

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Nov 2025

LAX - LIH

The staff were exceptional! They all were kind, accommodating, and professional.

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 10 flights from San Diego to Boston per day from 8 airlines.

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

    Flights from San Diego to Boston Logan Intl have been viewed 16 times in the past calendar month.

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

    For as low as $251, Alaska Airlines can have you in Boston from San Diego in 5h 30m. There are 2581 mi between San Diego and Boston. This flight may include one or multiple stops.

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

    Our cheapest airline available from San Diego to Boston is Spirit Airlines. Our recent data shows that you can find tickets from as low as $118 on this airline. Additional options worth looking into are Hawaiian Airlines and Delta, starting at $138 and $142 round-trip. Users have found that Spirit Airlines is 67% 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 $123. Alaska Airlines flights start at $123 while deals on Delta start at $124 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: KLM (100%), EL AL (90%), Air France( 79%).

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

    The cheapest flight price from San Diego to Boston is $113. On average you can expect to pay $845. The most popular route, (San Diego - Boston Logan Intl), can usually be booked for $213.

  • 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 Heritage Square. Chase Field, Desert Ridge Marketplace, and Heritage Square are located about 4.0 mi, 16.7 mi, and 4.0 mi, respectively from Phoenix Sky Harbor Intl. Travelers can rent a car at Phoenix Sky Harbor Intl for an average daily rate of $58 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 $58 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, March is the cheapest month in which you can book a flight from San Diego to Boston (average of $98). Flying from San Diego to Boston in June is currently the most expensive (average of $188). 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
Hampton Beach
Watertown
Seabrook
Seekonk
Lincoln
Lowell
Smithfield
Cranston
Chestnut Hill
Peabody
Quincy
York Beach
Warwick
Swansea
Old Orchard Beach
Brockton
Waltham
Chelsea

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Top 8 airlines flying from San Diego to Boston

Discover the top 8 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 November 24, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$118Average$273FlexibilityNo cancel feeOn-time65%
Hawaiian AirlinesCheapest$138Average$347FlexibilityNo cancel feeOn-time85%
DeltaCheapest$142Average$345FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$179Average$349FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$216Average$436FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$228Average$448FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$236Average$398FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$247Average$438FlexibilityNo cancel feeOn-time75%

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