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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 7/11. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — BOS
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$247
(Delta)

One-way from

$143
(FlightHub)

Popular in

December

Cheapest in

January

Average price

$407

Good round-trip deal

$307 or less

Good one-way deal

$163 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 ($9 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 12, 2025.

This Delta deal was found by Cheapflights users on 6/10. 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 7/1210:06 pmSAN - BOS
Nonstop5h 44mDelta
Sat 7/195:35 pmBOS - SAN
Nonstop6h 17mDelta
Deal found 6/10$247
This FlightHub deal was found by Cheapflights users on 6/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/257:31 pmSAN - BOS
2 stops10h 32mSpirit Airlines
Sun 6/299:44 amBOS - SAN
2 stops24h 29mSpirit Airlines
Deal found 6/11$249
This JetBlue deal was found by Cheapflights users on 6/12. 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.
Tue 7/89:00 pmSAN - BOS
Nonstop5h 47mJetBlue
Mon 7/147:00 amBOS - SAN
Nonstop6h 04mJetBlue
Deal found 6/12$252
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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 9/78:15 amSAN - BOS
1 stop13h 08mAlaska Airlines
Tue 9/238:23 pmBOS - SAN
1 stop14h 18mAlaska Airlines
Deal found 6/10$256
This SmartFares deal was found by Cheapflights users on 6/9. 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.
Thu 8/710:45 pmSAN - BOS
Nonstop5h 45mHawaiian Airlines
Fri 8/155:45 pmBOS - SAN
Nonstop6h 15mHawaiian Airlines
Deal found 6/9$263
This United Airlines deal was found by Cheapflights users on 6/12. 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 7/1612:44 pmSAN - BOS
1 stop8h 15mUnited Airlines
Sun 7/205:30 amBOS - SAN
1 stop8h 25mUnited Airlines
Deal found 6/12$272
This American Airlines deal was found by Cheapflights users on 6/12. 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.
Wed 10/299:25 pmSAN - BOS
1 stop8h 55mAmerican Airlines
Sun 11/25:48 amBOS - SAN
1 stop8h 20mAmerican Airlines
Deal found 6/12$283
This Mytrip deal was found by Cheapflights users on 6/11. 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 7/86:15 amSAN - BOS
2 stops34h 19mMultiple Airlines
Fri 7/1810:39 amBOS - SAN
1 stop8h 31mMultiple Airlines
Deal found 6/11$294
This Southwest deal was found by Cheapflights users on 6/11. 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 8/128:40 amSAN - BOS
2 stops9h 55mSouthwest
Tue 8/195:40 amBOS - SAN
2 stops11h 20mSouthwest
Deal found 6/11$352
This FlightHub deal was found by Cheapflights users on 6/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/266:25 amSAN - BOS
1 stop25h 36mFrontier
Mon 6/3011:56 amBOS - SAN
1 stop15h 03mFrontier
Deal found 6/11$366
This Sun Country Air deal was found by Cheapflights users on 6/12. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/226:13 pmSAN - BOS
1 stop13h 28mSun Country Air
Fri 11/2811:42 amBOS - SAN
1 stop8h 25mSun Country Air
Deal found 6/12$385

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 June 12, 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

Sat 7/12

10:06 pm-6:50 am

Nonstop5h 44m

Boston Logan Intl

Sat 7/19

5:35 pm-8:52 pm

Nonstop6h 17m

$247

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Wed 6/25

7:31 pm-9:03 am

2 stops10h 32m

Boston Logan Intl

Sun 6/29

9:44 am-7:13 am

2 stops24h 29m

$249

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Tue 7/8

9:00 pm-5:47 am

Nonstop5h 47m

Boston Logan Intl

Mon 7/14

7:00 am-10:04 am

Nonstop6h 04m

$252

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Sun 9/7

8:15 am-12:23 am

1 stop13h 08m

Boston Logan Intl

Tue 9/23

8:23 pm-7:41 am

1 stop14h 18m

$256

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Thu 8/7

10:45 pm-7:30 am

Nonstop5h 45m

Boston Logan Intl

Fri 8/15

5:45 pm-9:00 pm

Nonstop6h 15m

$263

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Wed 7/16

12:44 pm-11:59 pm

1 stop8h 15m

Boston Logan Intl

Sun 7/20

5:30 am-10:55 am

1 stop8h 25m

$272

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Wed 10/29

9:25 pm-9:20 am

1 stop8h 55m

Boston Logan Intl

Sun 11/2

5:48 am-11:08 am

1 stop8h 20m

$283

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Tue 7/8

6:15 am-7:34 pm

2 stops34h 19m

Boston Logan Intl

Fri 7/18

10:39 am-4:10 pm

1 stop8h 31m

$294

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Tue 8/12

8:40 am-9:35 pm

2 stops9h 55m

Boston Logan Intl

Tue 8/19

5:40 am-2:00 pm

2 stops11h 20m

$352

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Thu 6/26

6:25 am-11:01 am

1 stop25h 36m

Boston Logan Intl

Mon 6/30

11:56 am-11:59 pm

1 stop15h 03m

$366

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

Showing 1-10 of 21 results
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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 9, 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 June 12, 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 37% 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 8, 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 June 12, 2025.

The most flights from SAN to BOS are scheduled on a Thursday (22 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (10 on average).

Rainfall in Boston by month

Plan your trip to Boston by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Boston ranges from 3.1 - 4.0 inches per month. March is typically the wettest month, when rainfall can reach 4.0 in. July is typically the driest time to visit Boston when rainfall is around 3.1 in.

Temperature in Boston by month

Plan your trip to Boston by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Boston, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

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 June 12, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest and Delta from San Diego to Boston. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

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

Entertainment

7.1

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

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
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

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
7,946 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,494 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

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
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

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 16 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 9 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 Delta. Our recent data shows that you can find tickets from as low as $247 on this airline. Additional options worth looking into are Spirit Airlines and JetBlue, starting at $249 and $252 round-trip. Users have found that Delta is 34% 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 $143. Hawaiian Airlines flights start at $144 while deals on United Airlines start at $149 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 (90%), Qatar Airways (88%), Alaska Airlines( 88%).

  • 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 $950. The most popular route, (San Diego - Boston Logan Intl), can usually be booked for $197.

  • 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 $55 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 $50 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
Waltham
Framingham
Seabrook
Cranston
Randolph
Chestnut Hill
Lowell
Chelsea
Marlborough
Brockton
York Beach
Saco
Burlington
West Yarmouth
Smithfield
Swansea

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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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$84Average$168FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$112Average$251FlexibilityNo cancel feeOn-time65%
Hawaiian AirlinesCheapest$155Average$351FlexibilityNo cancel feeOn-time85%
DeltaCheapest$164Average$369FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$178Average$388FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$247Average$431FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$260Average$466FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$261Average$448FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$356Average$464FlexibilityNo cancel feeOn-time63%

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