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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 8/2. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — BOS
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
1 adult, Economy
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Cheapflights Tip: The best prices from San Diego to Boston Logan Intl are usually found in January or May, booked 86 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday

Cheap flight deals from San Diego to Boston

Discover tips and strategies to find the most affordable flight options for your journey from San Diego (SAN) to Boston (BOS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 3, 2025.

Round-trip from

$256
(Alaska Airlines)

One-way from

$143
(Frontier)

Popular in

December

Cheapest in

January

Average price

$416

Good round-trip deal

$297 or less

Good one-way deal

$176 or less
From San Diego to Boston Logan Intl
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One-way flight from San Diego to Boston Logan Intl
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Highest demand for flights based on searches. 0% potential increase in price ($2 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from San Diego to Boston Logan Intl.
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Price to beat on a one-way flight from San Diego to Boston Logan Intl.
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Find flight deals from San Diego to Boston

Cheapest flights from San Diego to Boston
Explore the most affordable flight options available from San Diego to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

This Alaska Airlines deal was found by Cheapflights users on 7/1. 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.
Tue 9/95:30 pmSAN - BOS
1 stop11h 30mAlaska Airlines
Tue 9/167:20 amBOS - SAN
1 stop10h 28mAlaska Airlines
Deal found 7/1$256
This Delta deal was found by Cheapflights users on 7/3. 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 8/1210:05 pmSAN - BOS
Nonstop5h 44mDelta
Mon 8/255:35 pmBOS - SAN
Nonstop6h 17mDelta
Deal found 7/3$257
This JetBlue deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/298:35 pmSAN - BOS
Nonstop5h 33mJetBlue
Sun 11/27:00 amBOS - SAN
Nonstop6h 40mJetBlue
Deal found 7/3$258
This American Airlines deal was found by Cheapflights users on 7/2. 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.
Sat 8/1612:50 pmSAN - BOS
1 stop7h 58mAmerican Airlines
Sat 8/235:54 amBOS - SAN
1 stop7h 45mAmerican Airlines
Deal found 7/2$259
This Southwest deal was found by Cheapflights users on 7/2. 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 8/139:10 pmSAN - BOS
1 stop7h 50mSouthwest
Wed 8/207:35 amBOS - SAN
2 stops10h 05mSouthwest
Deal found 7/2$262
This Orbitz deal was found by Cheapflights users on 7/3. 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.
Thu 8/147:04 pmSAN - BOS
2 stops11h 24mMultiple Airlines
Tue 8/198:40 amBOS - SAN
Nonstop6h 10mMultiple Airlines
Deal found 7/3$263
This Mytrip deal was found by Cheapflights users on 7/1. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/157:00 pmSAN - BOS
3 stops25h 03mSpirit Airlines
Tue 7/228:35 pmBOS - SAN
3 stops29h 31mSpirit Airlines
Deal found 7/1$264
This Frontier deal was found by Cheapflights users on 7/2. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/137:04 pmSAN - BOS
2 stops9h 55mFrontier
Mon 8/1811:55 amBOS - SAN
1 stop15h 02mFrontier
Deal found 7/2$271
This Hawaiian Airlines deal was found by Cheapflights users on 7/3. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1111:46 amSAN - BOS
1 stop9h 41mHawaiian Airlines
Tue 9/167:20 amBOS - SAN
1 stop10h 28mHawaiian Airlines
Deal found 7/3$276

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 3, 2025.
Use the filters below to find and compare flights from San Diego to Boston that are best for you.

Fly from

San Diego

Fly to

Boston

Route

Depart

Return

Price

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Tue 9/9

5:30 pm-8:00 am

1 stop11h 30m

Boston Logan Intl

Tue 9/16

7:20 am-2:48 pm

1 stop10h 28m

$256

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Tue 8/12

9:40 pm-8:15 am

1 stop7h 35m

Boston Logan Intl

Sat 8/16

5:15 am-10:52 am

1 stop8h 37m

$257

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Wed 10/29

8:35 pm-5:08 am

Nonstop5h 33m

Boston Logan Intl

Sun 11/2

7:00 am-10:40 am

Nonstop6h 40m

$258

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Sat 8/16

12:50 pm-11:48 pm

1 stop7h 58m

Boston Logan Intl

Sat 8/23

5:54 am-10:39 am

1 stop7h 45m

$259

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Wed 8/13

6:30 am-8:45 pm

2 stops11h 15m

Boston Logan Intl

Tue 8/26

1:00 pm-6:20 pm

1 stop8h 20m

$262

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Thu 8/14

7:04 pm-9:28 am

2 stops11h 24m

Boston Logan Intl

Tue 8/19

8:40 am-11:50 am

Nonstop6h 10m

$263

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Tue 7/15

7:00 pm-11:03 pm

3 stops25h 03m

Boston Logan Intl

Tue 7/22

8:35 pm-11:06 pm

3 stops29h 31m

$264

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Wed 8/13

7:04 pm-7:59 am

2 stops9h 55m

Boston Logan Intl

Mon 8/18

11:55 am-11:57 pm

1 stop15h 02m

$271

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Thu 9/11

11:46 am-12:27 am

1 stop9h 41m

Boston Logan Intl

Tue 9/16

7:20 am-2:48 pm

1 stop10h 28m

$276

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Sat 8/2

8:00 am-12:39 am

2 stops13h 39m

$143

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

Showing 1-10 of 17 results
1
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The best insider tips for San Diego to Boston flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your San Diego to Boston trip
Airports
SAN

Plan for traffic congestion around SAN, especially during peak times. Arrive early to avoid a last-minute rush to your gate.

Read more about SANby Blane Bachelor
BOS

Use the FlyLogan App for real-time flight updates and pre-order food with BOS2GO for a smooth arrival experience.

Read more about BOSby Paul Rubio
Our travel experts
Blane Bachelor

Blane Bachelor

Expert on SAN

Blane Bachelor

Blane Bachelor

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Read more
Paul Rubio

Paul Rubio

Expert on BOS

Paul Rubio

Paul Rubio

Travel journalist and photographer Paul Rubio is a Miami native (and current resident), who has lived in nine countries and traveled to 137. He is an expert in luxury travel, eco-travel, loyalty programs, hotels, airports and airlines. He is a contributing editor at AFAR, Condé Nast Traveler, LUXURY Magazine, and Palm Beach Illustrated.

Read more

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 June 27, 2025.

To ensure you get the cheapest price possible for a flight from San Diego to Boston, you should look to book at least 86 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 $218). Flying from San Diego to Boston in June is currently the most expensive (average of $306). 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 3, 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 afternoon, which can drop the price by up to 36% 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 June 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. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from San Diego to Boston

Explore weekly flight availability from San Diego to Boston. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 3, 2025.

The most flights from SAN to BOS are scheduled on a Thursday (22 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (7 on average).

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

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 3, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest, and Delta 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
10,000 reviews

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,266 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,982 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.8
Good
2,545 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,861 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 12 flights from San Diego to Boston per day from 9 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.

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

    Our cheapest airline available from San Diego to Boston is Alaska Airlines. Our recent data shows that you can find tickets from as low as $256 on this airline. Additional options worth looking into are United Airlines and JetBlue, starting at $257 and $258 round-trip. Users have found that Alaska Airlines is 32% 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 Frontier, which is currently one of the cheapest options available, starting at $143. United Airlines flights start at $144 while deals on Spirit Airlines start at $146 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: Japan Airlines (95%), Qatar Airways (88%), Alaska Airlines( 87%).

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

    The cheapest flight price from San Diego to Boston is $138. On average you can expect to pay $941. The most popular route, (San Diego - Boston Logan Intl), can usually be booked for $226.

  • 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 Las Vegas. Las Vegas is followed by Phoenix 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 Las Vegas?

    Most Las Vegas visitors opt to spend their time experiencing Fremont Street Experience, The Colosseum at Caesars Palace, and Fountains of Bellagio. Fremont Street Experience, The Colosseum at Caesars Palace, and Fountains of Bellagio are located about 5.9 mi, 2.6 mi, and 2.3 mi, respectively from Las Vegas Harry Reid Intl. Travelers can rent a car at Las Vegas Harry Reid Intl for an average daily rate of $54 to make sightseeing during their layover a little easier.

  • What are some popular points of interest to see during a layover in Phoenix?

    Chase Field, Desert Ridge Marketplace, and Phoenix Symphony Hall are currently the most popular points of interest in Phoenix at the moment. 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 if you are interested in checking them out. Travelers in need of a car in Phoenix can rent one for about $49 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. Philadelphia follows Chicago in terms of the least common layover location on San Diego to Boston flights.

  • 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 $218). Flying from San Diego to Boston in June is currently the most expensive (average of $306). 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 San Diego?

Book flights to San Diego if you plan to visit one of these locations
Cambridge
Medford
Watertown
Warwick
Seabrook
Waltham
Framingham
Cranston
Randolph
Chestnut Hill
Chelsea
Brockton
York Beach
Saco
Burlington
West Yarmouth
Smithfield
Swansea
Lincoln
Quincy

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Alternative routes for San Diego to Boston

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Top 9 airlines flying from San Diego to Boston

Discover the top 9 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 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$84Average$168FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$94Average$244FlexibilityNo cancel feeOn-time65%
Hawaiian AirlinesCheapest$153Average$353FlexibilityNo cancel feeOn-time85%
DeltaCheapest$163Average$361FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$176Average$378FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$238Average$435FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$256Average$443FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$261Average$465FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$286Average$460FlexibilityNo cancel feeOn-time63%

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