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$117+ 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 1/7. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — BOS
Jan 7 — Jan 141
Wed 1/7
Wed 1/14
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

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 December 8, 2025.

This Delta deal was found by Cheapflights users on 12/7. 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 12/2810:15 pmSAN - BOS
Nonstop5h 30mDelta
Wed 1/75:10 pmBOS - SAN
Nonstop6h 40mDelta
Deal found 12/7$287
This Southwest deal was found by Cheapflights users on 12/7. 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.
Sun 12/287:00 pmSAN - BOS
1 stop10h 45mSouthwest
Thu 1/84:50 pmBOS - SAN
1 stop8h 00mSouthwest
Deal found 12/7$312
This Delta deal was found by Cheapflights users on 12/7. 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 12/2810:15 pmSAN - BOS
Nonstop5h 30mDelta
Thu 1/85:10 pmBOS - SAN
Nonstop6h 40mDelta
Deal found 12/7$337
This Alaska Airlines deal was found by Cheapflights users on 12/7. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/288:27 pmSAN - BOS
Nonstop5h 43mAlaska Airlines
Wed 1/77:00 amBOS - SAN
1 stop11h 29mAlaska Airlines
Deal found 12/7$340
This Alaska Airlines deal was found by Cheapflights users on 12/7. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/249:35 amSAN - BOS
Nonstop5h 48mAlaska Airlines
Mon 1/54:45 pmBOS - SAN
Nonstop6h 33mAlaska Airlines
Deal found 12/7$342
This United Airlines deal was found by Cheapflights users on 12/7. 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 12/2412:56 pmSAN - BOS
1 stop7h 58mUnited Airlines
Mon 1/512:20 pmBOS - SAN
1 stop9h 21mUnited Airlines
Deal found 12/7$362
This American Airlines deal was found by Cheapflights users on 12/7. 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.
Sun 12/287:30 pmSAN - BOS
1 stop7h 07mAmerican Airlines
Wed 1/72:43 pmBOS - SAN
1 stop10h 43mAmerican Airlines
Deal found 12/7$367
This Expedia deal was found by Cheapflights users on 12/7. 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.
Wed 12/2411:27 amSAN - BOS
1 stop9h 49mMultiple Airlines
Mon 1/54:45 pmBOS - SAN
Nonstop6h 33mMultiple Airlines
Deal found 12/7$371
This United Airlines deal was found by Cheapflights users on 12/7. 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.
Thu 12/256:15 amSAN - BOS
1 stop7h 37mUnited Airlines
Thu 1/15:20 amBOS - SAN
1 stop9h 25mUnited Airlines
Deal found 12/7$372
This Southwest deal was found by Cheapflights users on 12/7. 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.
Mon 12/297:40 amSAN - BOS
1 stop7h 45mSouthwest
Mon 1/53:25 pmBOS - SAN
1 stop10h 25mSouthwest
Deal found 12/7$374

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 December 8, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$207
(Kiwi.com)

One-way from

$117
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$467

Good round-trip deal

$277 or less

Good one-way deal

$187 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 ($17 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 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

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 December 8, 2025.
Use the filters below to find and compare flights from San Diego to Boston that are best for you.

Fly from

San Diego

Fly to

Boston

Route

Depart

Return

Price

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Wed 1/21

9:10 am-5:39 pm

Nonstop5h 29m

Boston Logan Intl

Wed 1/28

4:20 pm-8:00 pm

Nonstop6h 40m

$217

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Tue 1/6

10:04 pm-6:30 am

Nonstop5h 26m

Boston Logan Intl

Tue 1/13

5:10 pm-8:50 pm

Nonstop6h 40m

$237

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Thu 1/22

10:04 pm-6:30 am

Nonstop5h 26m

Boston Logan Intl

Wed 1/28

5:10 pm-8:50 pm

Nonstop6h 40m

$238

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Wed 1/21

9:40 am-10:30 pm

2 stops9h 50m

Boston Logan Intl

Wed 1/28

6:50 am-1:35 pm

1 stop9h 45m

$262

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Thu 1/22

10:30 am-10:30 pm

2 stops9h 00m

Boston Logan Intl

Wed 1/28

4:50 pm-9:50 pm

1 stop8h 00m

$276

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Sat 1/10

7:05 am-7:25 pm

2 stops9h 20m

Boston Logan Intl

Thu 1/15

5:55 pm-11:05 pm

1 stop8h 10m

$296

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Tue 4/21

11:40 am-8:05 pm

Nonstop5h 25m

Boston Logan Intl

Fri 4/24

10:25 am-1:57 pm

Nonstop6h 32m

$317

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Sat 5/2

9:19 pm-5:58 am

Nonstop5h 39m

Boston Logan Intl

Wed 5/6

9:20 am-12:26 pm

Nonstop6h 06m

$317

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Thu 3/19

10:03 pm-6:25 am

Nonstop5h 22m

Boston Logan Intl

Tue 3/24

5:30 pm-9:07 pm

Nonstop6h 37m

$317

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Mon 6/1

10:00 pm-6:41 am

Nonstop5h 41m

Boston Logan Intl

Wed 7/1

5:15 pm-8:41 pm

Nonstop6h 26m

$317

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/8

Showing 1-10 of 22 results
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 December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
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 December 5, 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 $99). 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 December 8, 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 29% 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 29, 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. Monday mornings 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

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
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 December 8, 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
11,414 reviews

Overall

8.0

Entertainment

7.0

Crew

8.5

Boarding

8.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Alaska Airlines
8.0
Very good
11,414 reviews
Alaska Airlines
8.0
Very good
11,414 reviews

Overall

8.0

Entertainment

7.0

Crew

8.5

Boarding

8.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Delta
7.9
Good
8,011 reviews
Alaska Airlines
8.0
Very good
11,414 reviews

Overall

8.0

Entertainment

7.0

Crew

8.5

Boarding

8.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Hawaiian Airlines
7.8
Good
2,818 reviews
Alaska Airlines
8.0
Very good
11,414 reviews

Overall

8.0

Entertainment

7.0

Crew

8.5

Boarding

8.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
American Airlines
7.2
Good
11,042 reviews
Alaska Airlines
8.0
Very good
11,414 reviews

Overall

8.0

Entertainment

7.0

Crew

8.5

Boarding

8.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
JetBlue
7.2
Good
2,896 reviews
Alaska Airlines
8.0
Very good
11,414 reviews

Overall

8.0

Entertainment

7.0

Crew

8.5

Boarding

8.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.

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 24m 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 $237, Alaska Airlines can have you in Boston from San Diego in 5h 26m. 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 Delta and Hawaiian Airlines, starting at $120 and $126 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 $99. 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: KLM (100%), Air France (100%), EL AL( 100%).

  • 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 $618. The most popular route, (San Diego - Boston Logan Intl), can usually be booked for $164.

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

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

  • What are some popular things to do or see while on a layover in Phoenix?

    Most Phoenix visitors opt to spend their time experiencing Chase Field, Desert Ridge Marketplace, and Phoenix Symphony Hall. Chase Field, Desert Ridge Marketplace, and Phoenix Symphony Hall are located about 4.0 mi, 16.7 mi, and 4.3 mi, respectively from Phoenix Sky Harbor Intl. Travelers can rent a car at Phoenix Sky Harbor Intl for an average daily rate of $50 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 $51 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 $99). 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
Cranston
Lincoln
Lowell
Smithfield
Peabody
Brockton
Quincy
York Beach
Warwick
Londonderry
Swansea
Old Orchard Beach
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 December 8, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$130Average$273FlexibilityNo cancel feeOn-time65%
Hawaiian AirlinesCheapest$138Average$347FlexibilityNo cancel feeOn-time85%
DeltaCheapest$141Average$342FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$178Average$350FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$224Average$437FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$228Average$408FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$236Average$397FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$241Average$435FlexibilityNo cancel feeOn-time75%

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