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$143+ 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 6/11. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — BOS
Apr 25 — May 21
Sat 4/25
Sat 5/2
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”

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Cheapflights Tip: The best prices from San Diego to Boston Logan Intl are usually found in January or October, booked 67 days in advance, depart on a Wednesday or Friday and return on a Wednesday

Cheap 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 March 26, 2026.

This Cheapflightsfares deal was found by Cheapflights users on 3/24. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/288:35 pm
SAN
-
BOS
Nonstop5h 29m
JetBlue
Tue 5/56:00 am
BOS
-
SAN
Nonstop6h 15m
JetBlue
Deal found 3/24$232
This Super.com deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/31:41 pm
SAN
-
BOS
Nonstop5h 42m
JetBlue
Wed 6/106:37 am
BOS
-
SAN
Nonstop6h 13m
JetBlue
Deal found 3/24$234
This Delta deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/289:59 pm
SAN
-
BOS
Nonstop5h 31m
Delta
Wed 5/65:44 pm
BOS
-
SAN
Nonstop6h 29m
Delta
Deal found 3/26$237
This United Airlines deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/62:14 pm
SAN
-
BOS
1 stop7h 45m
United Airlines
Wed 5/134:52 pm
BOS
-
SAN
1 stop8h 24m
United Airlines
Deal found 3/26$252
This Southwest deal was found by Cheapflights users on 3/22. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/59:40 pm
SAN
-
BOS
1 stop7h 35m
Southwest
Tue 5/122:25 pm
BOS
-
SAN
1 stop8h 10m
Southwest
Deal found 3/22$258
This Southwest deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/287:40 pm
SAN
-
BOS
2 stops9h 35m
Southwest
Tue 5/52:25 pm
BOS
-
SAN
1 stop8h 10m
Southwest
Deal found 3/25$262
This Delta deal was found by Cheapflights users on 3/25. 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.
Mon 4/209:59 pm
SAN
-
BOS
Nonstop5h 31m
Delta
Tue 4/285:44 pm
BOS
-
SAN
Nonstop6h 29m
Delta
Deal found 3/25$263
This Delta deal was found by Cheapflights users on 3/25. 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.
Fri 5/89:49 pm
SAN
-
BOS
Nonstop5h 41m
Delta
Tue 5/125:15 pm
BOS
-
SAN
Nonstop6h 21m
Delta
Deal found 3/25$267
This Orbitz deal was found by Cheapflights users on 3/23. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/31:41 pm
SAN
-
BOS
Nonstop5h 42m
Multiple Airlines
Mon 6/88:05 am
BOS
-
SAN
Nonstop6h 27m
Multiple Airlines
Deal found 3/23$268

Find 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 March 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$232
(Cheapflightsfares)

One-way from

$143
(Southwest)

Popular in

December

Cheapest in

January

Average price

$377

Good round-trip deal

$312 or less

Good one-way deal

$233 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
Search Deals
One-way flight from San Diego to Boston Logan Intl
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($16 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 March 2026
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

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 March 26, 2026.
Use the filters below to find and compare flights from San Diego to Boston that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Wed 5/13

9:49 pm-6:30 am

Nonstop5h 41m

Boston Logan Intl

Tue 5/19

5:51 am-1:17 pm

1 stop10h 26m

$247

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Thu 5/7

9:49 pm-6:30 am

Nonstop5h 41m

Boston Logan Intl

Sun 5/10

5:15 pm-8:36 pm

Nonstop6h 21m

$313

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Fri 5/8

6:15 am-11:59 pm

1 stop14h 44m

Boston Logan Intl

Fri 5/15

6:40 pm-10:09 pm

Nonstop6h 29m

$323

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Tue 5/26

10:40 pm-9:39 am

1 stop7h 59m

Boston Logan Intl

Thu 5/28

9:30 am-3:03 pm

1 stop8h 33m

$333

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Thu 4/9

10:03 pm-6:25 am

Nonstop5h 22m

Boston Logan Intl

Mon 4/13

6:54 pm-11:42 pm

1 stop7h 48m

$337

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Sat 4/18

7:35 am-10:25 pm

1 stop11h 50m

Boston Logan Intl

Thu 4/23

8:45 am-4:45 pm

2 stops11h 00m

$358

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Thu 4/9

8:30 am-9:50 pm

2 stops10h 20m

Boston Logan Intl

Tue 4/14

5:35 am-12:10 pm

2 stops9h 35m

$382

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Fri 5/8

10:40 pm-1:35 pm

2 stops11h 55m

Boston Logan Intl

Fri 5/15

3:45 pm-10:30 pm

2 stops9h 45m

$394
Quickest round-trip

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Mon 7/6

9:54 pm-6:30 am

Nonstop5h 36m

Boston Logan Intl

Sat 7/11

5:10 pm-8:25 pm

Nonstop6h 15m

$394

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Thu 7/30

9:53 pm-6:30 am

Nonstop5h 37m

Boston Logan Intl

Sun 8/2

5:10 pm-8:25 pm

Nonstop6h 15m

$405

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/22

Showing 1-10 of 23 resultsSorted by cheapest first
1
2
3

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 March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*2 stars
Trip.comPrice 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 San Diego-Boston flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Diego-Boston flight deals on Cheapflights vs. FlightHub >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 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 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 March 13, 2026.

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, April is the cheapest month in which you can book a flight from San Diego to Boston (average of $132). Flying from San Diego to Boston in January is currently the most expensive (average of $217). 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 March 26, 2026.

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 26% 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 March 23, 2026.

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

How much does it cost to fly round-trip from San Diego to Boston?

The best insider tips for San Diego to Boston 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 San Diego to Boston trip
Our travel experts
Blane Bachelor

Blane Bachelor

Expert on SAN

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

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 March 26, 2026.
Peruse reviews from past customers who have flown with Alaska Airlines,Delta, andHawaiian 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
7.9
Good
12,120 reviews

Boarding

8.1

Food

7.0

Overall

7.9

Crew

8.5

Entertainment

7.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Franzi,Mar 2026

SFO - PDX

I love flying with Alaska. I think they sre the best airline.
Alaska Airlines
7.9
Good
12,120 reviews
Alaska Airlines
7.9
Good
12,120 reviews

Boarding

8.1

Food

7.0

Overall

7.9

Crew

8.5

Entertainment

7.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Franzi,Mar 2026

SFO - PDX

I love flying with Alaska. I think they sre the best airline.
Delta
7.9
Good
8,339 reviews
Alaska Airlines
7.9
Good
12,120 reviews

Boarding

8.1

Food

7.0

Overall

7.9

Crew

8.5

Entertainment

7.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Franzi,Mar 2026

SFO - PDX

I love flying with Alaska. I think they sre the best airline.
Hawaiian Airlines
7.8
Good
2,839 reviews
Alaska Airlines
7.9
Good
12,120 reviews

Boarding

8.1

Food

7.0

Overall

7.9

Crew

8.5

Entertainment

7.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Franzi,Mar 2026

SFO - PDX

I love flying with Alaska. I think they sre the best airline.
JetBlue
7.2
Good
2,907 reviews
Alaska Airlines
7.9
Good
12,120 reviews

Boarding

8.1

Food

7.0

Overall

7.9

Crew

8.5

Entertainment

7.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Franzi,Mar 2026

SFO - PDX

I love flying with Alaska. I think they sre the best airline.
American Airlines
7.1
Good
11,505 reviews
Alaska Airlines
7.9
Good
12,120 reviews

Boarding

8.1

Food

7.0

Overall

7.9

Crew

8.5

Entertainment

7.0

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Franzi,Mar 2026

SFO - PDX

I love flying with Alaska. I think they sre the best airline.

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 22m for a nonstop flight. There are 5 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 18 times in the past calendar month.

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

    For as low as $247, Delta can have you in Boston from San Diego in 10h 19m. 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 $89 on this airline. Additional options worth looking into are Hawaiian Airlines and Delta, starting at $128 and $129 round-trip. Users have found that Spirit Airlines is 75% 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 Spirit Airlines, which is currently one of the cheapest options available, starting at $108. United Airlines flights start at $118 while deals on Alaska Airlines start at $118 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: TAP AIR PORTUGAL (79%), Icelandair (78%), Japan Airlines( 78%).

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

    The cheapest flight price from San Diego to Boston is $143. On average you can expect to pay $638. The most popular route, (San Diego - Boston Logan Intl), can usually be booked for $232.

  • 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.

  • 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 $58 to make sightseeing during their layover a little easier.

  • 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, April is the cheapest month in which you can book a flight from San Diego to Boston (average of $132). Flying from San Diego to Boston in January is currently the most expensive (average of $217). 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
Medford
Cambridge
Concord
Hampton Beach
Watertown
Brockton
Seekonk
Seabrook
Cranston
Chelsea
Lincoln
Warwick
Peabody
Waltham
York Beach
Londonderry
Swansea
Old Orchard Beach
Quincy
Lowell

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.

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 March 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$89Average$256FlexibilityNo cancel feeOn-time65%
Hawaiian AirlinesCheapest$128Average$318FlexibilityNo cancel feeOn-time85%
DeltaCheapest$129Average$328FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$144Average$338FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$213Average$428FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$229Average$423FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$236Average$415FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$256Average$439FlexibilityNo cancel feeOn-time71%

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