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$134+ 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 8/26. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — BOS
Aug 21 — Aug 281
Fri 8/21
Fri 8/28
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

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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 October or January, booked 90 days in advance, depart on a Saturday or Wednesday and return on a Tuesday

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 July 22, 2026.

This Trip.com deal was found by Cheapflights users on 7/21. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/68:59 pm
SAN
-
BOS
Nonstop5h 48m
Alaska Airlines
Sat 9/128:00 am
BOS
-
SAN
Nonstop6h 12m
Alaska Airlines
Deal found 7/21$264
This Cheapflightsfares deal was found by Cheapflights users on 7/21. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/198:30 pm
SAN
-
BOS
1 stop8h 16m
JetBlue
Mon 8/315:16 am
BOS
-
SAN
1 stop8h 20m
JetBlue
Deal found 7/21$265
This Cheapflightsfares deal was found by Cheapflights users on 7/21. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/288:40 pm
SAN
-
BOS
Nonstop5h 44m
JetBlue
Tue 9/299:00 am
BOS
-
SAN
Nonstop6h 22m
JetBlue
Deal found 7/21$266
This Delta deal was found by Cheapflights users on 7/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2910:02 pm
SAN
-
BOS
Nonstop5h 38m
Delta
Sat 9/55:20 pm
BOS
-
SAN
Nonstop6h 15m
Delta
Deal found 7/20$267
This Cheapflightsfares deal was found by Cheapflights users on 7/20. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/158:40 pm
SAN
-
BOS
Nonstop5h 39m
JetBlue
Fri 8/2112:44 pm
BOS
-
SAN
1 stop9h 22m
JetBlue
Deal found 7/20$268
This Southwest deal was found by Cheapflights users on 7/22. 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 9/153:55 pm
SAN
-
BOS
Nonstop5h 30m
Southwest
Fri 9/1811:15 am
BOS
-
SAN
Nonstop5h 55m
Southwest
Deal found 7/22$270
This Cheapflightsfares deal was found by Cheapflights users on 7/21. 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 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 9/23:50 pm
BOS
-
SAN
Nonstop6h 06m
JetBlue
Deal found 7/21$271
This United Airlines deal was found by Cheapflights users on 7/21. 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.
Wed 9/92:15 pm
SAN
-
BOS
1 stop7h 55m
United Airlines
Wed 9/235:01 pm
BOS
-
SAN
1 stop8h 09m
United Airlines
Deal found 7/21$272
This JetBlue deal was found by Cheapflights users on 7/21. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/148:40 pm
SAN
-
BOS
Nonstop5h 39m
JetBlue
Wed 8/198:50 am
BOS
-
SAN
Nonstop6h 06m
JetBlue
Deal found 7/21$273
This Expedia deal was found by Cheapflights users on 7/21. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/228:34 pm
SAN
-
BOS
Nonstop5h 47m
Multiple Airlines
Sun 10/256:30 am
BOS
-
SAN
Nonstop6h 35m
Multiple Airlines
Deal found 7/21$274
This Delta deal was found by Cheapflights users on 7/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/3010:02 pm
SAN
-
BOS
Nonstop5h 38m
Delta
Sat 9/125:10 pm
BOS
-
SAN
Nonstop6h 05m
Delta
Deal found 7/20$275
This Expedia deal was found by Cheapflights users on 7/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/248:59 pm
SAN
-
BOS
Nonstop5h 50m
Multiple Airlines
Wed 9/911:20 am
BOS
-
SAN
1 stop11h 41m
Multiple Airlines
Deal found 7/18$276

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 July 22, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$264
(Trip.com)

One-way from

$134
(United Airlines)

Popular in

December

Cheapest in

October

Average price

$413

Good round-trip deal

$311 or less

Good one-way deal

$154 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. 2% potential increase in price ($10 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 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 July 22, 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

Tue 9/8

10:40 pm-9:55 am

1 stop8h 15m

Boston Logan Intl

Tue 9/15

2:45 pm-10:00 pm

2 stops10h 15m

$282

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Sat 8/29

10:40 pm-9:15 am

1 stop7h 35m

Boston Logan Intl

Wed 9/2

10:05 am-6:20 pm

2 stops11h 15m

$298

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Mon 8/24

9:00 pm-9:55 am

2 stops9h 55m

Boston Logan Intl

Mon 8/31

5:25 am-10:10 am

1 stop7h 45m

$298

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Mon 8/24

9:00 pm-9:55 am

2 stops9h 55m

Boston Logan Intl

Wed 9/9

2:10 pm-8:45 pm

1 stop9h 35m

$298
Quickest round-trip

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Wed 10/28

9:20 am-5:50 pm

Nonstop5h 30m

Boston Logan Intl

Mon 11/2

8:15 am-11:40 am

Nonstop6h 25m

$298

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Fri 12/4

7:00 am-12:05 am

1 stop14h 05m

Boston Logan Intl

Mon 12/7

5:45 pm-9:08 pm

Nonstop6h 23m

$308

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Thu 8/27

3:55 pm-12:25 am

Nonstop5h 30m

Boston Logan Intl

Sun 8/30

5:30 am-10:10 am

1 stop7h 40m

$308

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Mon 9/21

10:40 pm-9:55 am

1 stop8h 15m

Boston Logan Intl

Tue 9/29

5:25 am-12:15 pm

2 stops9h 50m

$312

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Mon 8/10

8:52 pm-5:40 am

Nonstop5h 48m

Boston Logan Intl

Mon 9/7

6:17 pm-9:30 pm

Nonstop6h 13m

$320

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Sun 8/23

8:40 pm-5:19 am

Nonstop5h 39m

Boston Logan Intl

Fri 8/28

12:44 pm-7:06 pm

1 stop9h 22m

$322

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/21

Showing 1-10 of 24 resultsSorted by cheapest first
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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 July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
CheapOairPrice Accuracy3 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 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 89 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, October is the cheapest month in which you can book a flight from San Diego to Boston (average of $304). Flying from San Diego to Boston in December is currently the most expensive (average of $448). 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 July 22, 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 25% 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 July 18, 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 July 22, 2026.
Peruse reviews from past customers who have flown with Southwest,Alaska Airlines, andDelta 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.
Southwest
8.0
Very good
4,241 reviews

Comfort

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Food

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

La Tracimeldamarcos,Jun 2026

LAX - SLC

The second flight was not as comfortable as the first as we had to change planes to what seemed to be a slightly older aircraft. The seats weren’t as comfortable as the other plane. But it wasn’t bad.
Southwest
8.0
Very good
4,241 reviews
Southwest
8.0
Very good
4,241 reviews

Comfort

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Food

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

La Tracimeldamarcos,Jun 2026

LAX - SLC

The second flight was not as comfortable as the first as we had to change planes to what seemed to be a slightly older aircraft. The seats weren’t as comfortable as the other plane. But it wasn’t bad.
Alaska Airlines
7.9
Good
12,687 reviews
Southwest
8.0
Very good
4,241 reviews

Comfort

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Food

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

La Tracimeldamarcos,Jun 2026

LAX - SLC

The second flight was not as comfortable as the first as we had to change planes to what seemed to be a slightly older aircraft. The seats weren’t as comfortable as the other plane. But it wasn’t bad.
Delta
7.8
Good
8,477 reviews
Southwest
8.0
Very good
4,241 reviews

Comfort

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Food

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

La Tracimeldamarcos,Jun 2026

LAX - SLC

The second flight was not as comfortable as the first as we had to change planes to what seemed to be a slightly older aircraft. The seats weren’t as comfortable as the other plane. But it wasn’t bad.
American Airlines
7.1
Good
11,838 reviews
Southwest
8.0
Very good
4,241 reviews

Comfort

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Food

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

La Tracimeldamarcos,Jun 2026

LAX - SLC

The second flight was not as comfortable as the first as we had to change planes to what seemed to be a slightly older aircraft. The seats weren’t as comfortable as the other plane. But it wasn’t bad.
JetBlue
7.1
Good
3,019 reviews
Southwest
8.0
Very good
4,241 reviews

Comfort

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Food

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

La Tracimeldamarcos,Jun 2026

LAX - SLC

The second flight was not as comfortable as the first as we had to change planes to what seemed to be a slightly older aircraft. The seats weren’t as comfortable as the other plane. But it wasn’t bad.

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 20m 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 13 times in the past calendar month.

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

    For as low as $282, Southwest can have you in Boston from San Diego in 8h 15m. 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 $126 and $147 round-trip. Users have found that Hawaiian Airlines is 68% 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 $113. Delta flights start at $115 while deals on United 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: EL AL (91%), American Airlines (91%), Alaska Airlines( 91%).

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

    The cheapest flight price from San Diego to Boston is $128. On average you can expect to pay $1,181. The most popular route, (San Diego - Boston Logan Intl), can usually be booked for $230.

  • 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, October is the cheapest month in which you can book a flight from San Diego to Boston (average of $304). Flying from San Diego to Boston in December is currently the most expensive (average of $448). 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
Randolph
Brockton
Seekonk
Hampton Beach
Cranston
Dedham
Warwick
Peabody
Auburn
York Beach
Chelsea
Londonderry
Swansea
Fitchburg
North Falmouth
Braintree
Sandwich

Browse thousands of different options on Cheapflights for your next trip

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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 July 22, 2026.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$118Average$288FlexibilityNo cancel feeOn-time85%
DeltaCheapest$126Average$330FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$147Average$351FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$203Average$415FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$217Average$419FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$247Average$405FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$255Average$457FlexibilityNo cancel feeOn-time71%

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