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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 8/21. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — BOS
Jun 30 — Jul 71
Tue 6/30
Tue 7/7
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 September, booked 68 days in advance, depart on a Wednesday or Saturday 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 May 31, 2026.

This Southwest deal was found by Cheapflights users on 5/29. 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.
Fri 8/283:55 pm
SAN
-
BOS
Nonstop5h 30m
Southwest
Wed 9/29:25 am
BOS
-
SAN
1 stop10h 25m
Southwest
Deal found 5/29$253
This American Airlines deal was found by Cheapflights users on 5/30. 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.
Mon 6/159:55 pm
SAN
-
BOS
1 stop7h 46m
American Airlines
Wed 6/1712:39 pm
BOS
-
SAN
1 stop8h 12m
American Airlines
Deal found 5/30$257
This Southwest deal was found by Cheapflights users on 5/28. 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.
Fri 9/49:30 pm
SAN
-
BOS
Nonstop5h 30m
Southwest
Tue 9/82:45 pm
BOS
-
SAN
1 stop7h 50m
Southwest
Deal found 5/28$259
This SmartFares deal was found by Cheapflights users on 5/28. 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.
Wed 7/88:40 pm
SAN
-
BOS
Nonstop5h 39m
JetBlue
Wed 7/156:05 am
BOS
-
SAN
Nonstop6h 04m
JetBlue
Deal found 5/28$261
This Cheapflightsfares deal was found by Cheapflights users on 5/30. 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 8/258:40 pm
SAN
-
BOS
Nonstop5h 39m
JetBlue
Wed 9/28:50 am
BOS
-
SAN
Nonstop6h 06m
JetBlue
Deal found 5/30$262
This Southwest deal was found by Cheapflights users on 5/29. 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.
Wed 8/1210:40 pm
SAN
-
BOS
2 stops13h 15m
Southwest
Mon 8/175:40 am
BOS
-
SAN
1 stop7h 40m
Southwest
Deal found 5/29$265
This CheapOair deal was found by Cheapflights users on 5/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/78:52 pm
SAN
-
BOS
Nonstop5h 48m
Alaska Airlines
Tue 7/148:28 am
BOS
-
SAN
Nonstop6h 15m
Alaska Airlines
Deal found 5/29$267
This Delta deal was found by Cheapflights users on 5/31. 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 9/2510:04 pm
SAN
-
BOS
Nonstop5h 36m
Delta
Mon 9/285:10 pm
BOS
-
SAN
Nonstop6h 05m
Delta
Deal found 5/31$270
This Southwest deal was found by Cheapflights users on 5/29. 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.
Thu 8/133:55 pm
SAN
-
BOS
Nonstop5h 30m
Southwest
Fri 8/145:25 am
BOS
-
SAN
1 stop7h 45m
Southwest
Deal found 5/29$274
This Southwest deal was found by Cheapflights users on 5/27. 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 8/113:55 pm
SAN
-
BOS
Nonstop5h 30m
Southwest
Tue 8/185:35 am
BOS
-
SAN
1 stop7h 35m
Southwest
Deal found 5/27$277
This lol.travel deal was found by Cheapflights users on 5/31. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/47:00 am
SAN
-
BOS
Nonstop5h 51m
Alaska Airlines
Fri 7/104:33 pm
BOS
-
SAN
Nonstop6h 20m
Alaska Airlines
Deal found 5/31$278

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 May 31, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$253
(Southwest)

One-way from

$143
(Southwest)

Popular in

December

Cheapest in

January

Average price

$377

Good round-trip deal

$301 or less

Good one-way deal

$168 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. 3% potential increase in price ($12 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 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 May 31, 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

Fri 8/14

1:50 pm-12:30 am

1 stop7h 40m

Boston Logan Intl

Mon 8/17

5:00 am-10:10 am

1 stop8h 10m

$284

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Tue 7/14

2:45 pm-11:20 pm

Nonstop5h 35m

Boston Logan Intl

Tue 7/28

5:00 pm-11:30 pm

1 stop9h 30m

$292

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Thu 8/6

3:55 pm-12:25 am

Nonstop5h 30m

Boston Logan Intl

Wed 8/12

2:45 pm-7:35 pm

1 stop7h 50m

$292
Quickest round-trip

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Thu 8/13

3:55 pm-12:25 am

Nonstop5h 30m

Boston Logan Intl

Fri 8/14

11:15 am-2:10 pm

Nonstop5h 55m

$293

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Fri 8/14

3:55 pm-12:25 am

Nonstop5h 30m

Boston Logan Intl

Sat 8/29

5:40 am-10:30 am

1 stop7h 50m

$312

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Wed 6/17

6:55 pm-5:58 am

1 stop8h 03m

Boston Logan Intl

Wed 6/24

6:26 pm-11:54 pm

1 stop8h 28m

$334

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Mon 7/13

2:35 pm-11:10 pm

Nonstop5h 35m

Boston Logan Intl

Wed 7/22

3:45 pm-11:25 pm

1 stop10h 40m

$335

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Tue 7/28

2:45 pm-11:20 pm

Nonstop5h 35m

Boston Logan Intl

Tue 8/4

9:05 am-12:00 pm

Nonstop5h 55m

$339

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Fri 8/7

8:52 pm-5:40 am

Nonstop5h 48m

Boston Logan Intl

Mon 8/10

4:33 pm-7:53 pm

Nonstop6h 20m

$360

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Sun 7/19

8:40 pm-5:19 am

Nonstop5h 39m

Boston Logan Intl

Sun 8/2

6:05 am-9:09 am

Nonstop6h 04m

$370

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/26

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 May.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
CheapfaremartPrice Accuracy-Trust Score*1 star
CheapTicketsDealPrice Accuracy1 starTrust Score*3 stars
CheapOairPrice Accuracy3 starsTrust Score*3 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?

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 $307). Flying from San Diego to Boston in December is currently the most expensive (average of $447). 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 May 31, 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 at noon, which can drop the price by up to 27% 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 May 30, 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. Sunday afternoons 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 May 31, 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
12,444 reviews

Boarding

8.1

Crew

8.5

Overall

7.9

Comfort

7.8

Food

7.1

Entertainment

7.0

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
12,444 reviews
Alaska Airlines
7.9
Good
12,444 reviews

Boarding

8.1

Crew

8.5

Overall

7.9

Comfort

7.8

Food

7.1

Entertainment

7.0

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
8,404 reviews
Alaska Airlines
7.9
Good
12,444 reviews

Boarding

8.1

Crew

8.5

Overall

7.9

Comfort

7.8

Food

7.1

Entertainment

7.0

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
2,833 reviews
Alaska Airlines
7.9
Good
12,444 reviews

Boarding

8.1

Crew

8.5

Overall

7.9

Comfort

7.8

Food

7.1

Entertainment

7.0

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
11,644 reviews
Alaska Airlines
7.9
Good
12,444 reviews

Boarding

8.1

Crew

8.5

Overall

7.9

Comfort

7.8

Food

7.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Franzi,Mar 2026

SFO - PDX

I love flying with Alaska. I think they sre the best airline.
JetBlue
7.1
Good
2,985 reviews
Alaska Airlines
7.9
Good
12,444 reviews

Boarding

8.1

Crew

8.5

Overall

7.9

Comfort

7.8

Food

7.1

Entertainment

7.0

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 25m for a nonstop flight. There are 11 flights from San Diego to Boston per day from 7 airlines.

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

    Flights from San Diego to Boston Logan Intl have been viewed 17 times in the past calendar month.

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

    For as low as $284, Southwest can have you in Boston from San Diego in 7h 40m. There are 2581 mi between San Diego and Boston.

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

    Our cheapest airline available from San Diego to Boston is Hawaiian Airlines. Our recent data shows that you can find tickets from as low as $118 on this airline. Additional options worth looking into are Delta and JetBlue, starting at $124 and $149 round-trip. Users have found that Hawaiian 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 Delta, which is currently one of the cheapest options available, starting at $114. United Airlines flights start at $118 while deals on JetBlue start at $123 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: EL AL (96%), Aer Lingus (83%), Icelandair( 81%).

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

    The cheapest flight price from San Diego to Boston is $133. On average you can expect to pay $982. The most popular route, (San Diego - Boston Logan Intl), can usually be booked for $200.

  • 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 $307). Flying from San Diego to Boston in December is currently the most expensive (average of $447). 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
Waltham
Cambridge
Concord
Hampton Beach
Brockton
Watertown
Seekonk
Cranston
Chelsea
Warwick
Peabody
York Beach
Londonderry
Swansea
Old Orchard Beach
Auburn
Lowell
Smithfield
Braintree
Sandwich

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 7 airlines flying from San Diego to Boston

Discover the top 7 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 May 31, 2026.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$118Average$296FlexibilityNo cancel feeOn-time85%
DeltaCheapest$124Average$320FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$149Average$341FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$203Average$417FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$222Average$429FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$255Average$453FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$278Average$405FlexibilityNo cancel feeOn-time63%

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