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$139+ 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 9/1. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — BOS
ago. 5 — ago. 121
mar. 8/5
mar. 8/12
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 Friday 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 julio 31, 2025.

Round-trip from

$206
(CheapOair)

One-way from

$139
(Hawaiian Airlines)

Popular in

December

Cheapest in

January

Average price

$397

Good round-trip deal

$274 or less

Good one-way deal

$167 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. 1% potential increase in price ($5 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 julio 31, 2025.

This CheapOair deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/227:47 pmSAN - BOS
2 stops15h 49mSpirit Airlines
jue. 10/303:31 pmBOS - SAN
2 stops18h 53mSpirit Airlines
Deal found 7/29$206
This lastminute.com deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/138:55 pmSAN - BOS
Nonstop5h 45mJetBlue
sáb. 9/203:45 pmBOS - SAN
Nonstop6h 13mJetBlue
Deal found 7/30$229
This Delta deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/610:05 pmSAN - BOS
Nonstop5h 45mDelta
sáb. 9/134:15 pmBOS - SAN
Nonstop6h 03mDelta
Deal found 7/29$237
This Alaska Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/67:59 pmSAN - BOS
1 stop16h 01mAlaska Airlines
sáb. 9/137:45 amBOS - SAN
Nonstop6h 05mAlaska Airlines
Deal found 7/29$247
This United Airlines deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/312:35 pmSAN - BOS
1 stop8h 22mUnited Airlines
mié. 9/105:05 pmBOS - SAN
1 stop8h 09mUnited Airlines
Deal found 7/28$252
This Southwest deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/206:25 amSAN - BOS
1 stop7h 40mSouthwest
mar. 8/265:40 amBOS - SAN
2 stops11h 20mSouthwest
Deal found 7/31$262
This Hawaiian Airlines deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/1611:46 amSAN - BOS
1 stop9h 41mHawaiian Airlines
vie. 9/195:08 pmBOS - SAN
Nonstop6h 11mHawaiian Airlines
Deal found 7/31$267

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 julio 31, 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

mié. 10/22

7:47 pm-2:36 pm

2 stops15h 49m

Boston Logan Intl

jue. 10/30

3:31 pm-7:24 am

2 stops18h 53m

$206

San DiegoBoston

SAN - BOS

SANBOS

San Diego

sáb. 9/13

8:55 pm-5:40 am

Nonstop5h 45m

Boston Logan Intl

sáb. 9/20

3:45 pm-6:58 pm

Nonstop6h 13m

$229

San DiegoBoston

SAN - BOS

SANBOS

San Diego

sáb. 9/6

10:05 pm-6:50 am

Nonstop5h 45m

Boston Logan Intl

sáb. 9/13

4:15 pm-7:18 pm

Nonstop6h 03m

$237

San DiegoBoston

SAN - BOS

SANBOS

San Diego

sáb. 9/6

7:59 pm-3:00 pm

1 stop16h 01m

Boston Logan Intl

sáb. 9/13

7:45 am-10:50 am

Nonstop6h 05m

$247

San DiegoBoston

SAN - BOS

SANBOS

San Diego

mié. 9/3

12:35 pm-11:57 pm

1 stop8h 22m

Boston Logan Intl

mié. 9/10

5:05 pm-10:14 pm

1 stop8h 09m

$252

San DiegoBoston

SAN - BOS

SANBOS

San Diego

mié. 8/20

6:25 am-5:05 pm

1 stop7h 40m

Boston Logan Intl

mar. 8/26

5:40 am-2:00 pm

2 stops11h 20m

$262

San DiegoBoston

SAN - BOS

SANBOS

San Diego

mié. 10/29

6:38 pm-7:40 am

1 stop10h 02m

Boston Logan Intl

dom. 11/2

4:24 pm-8:03 pm

Nonstop6h 39m

$280

San DiegoBoston

SAN - BOS

SANBOS

San Diego

lun. 9/1

10:05 pm-6:49 am

Nonstop5h 44m

$139

San DiegoBoston

SAN - BOS

SANBOS

San Diego

jue. 8/21

12:02 pm-10:34 pm

1 stop7h 32m

$140

San DiegoBoston

SAN - BOS

SANBOS

San Diego

jue. 10/23

2:11 pm-12:50 am

1 stop7h 39m

$144

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/31

Showing 1-10 of 13 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 July 25, 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 July is currently the most expensive (average of $311). 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 julio 31, 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 34% 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 27, 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 julio 31, 2025.

The most flights from SAN to BOS are scheduled on a Thursday (21 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (8 on average).

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 julio 31, 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

Overall

8.0

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Southwest
8.0
Very good
4,246 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,981 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Hawaiian Airlines
7.8
Good
2,611 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
United Airlines
7.4
Good
8,900 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

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 33m for a nonstop flight. There are 15 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 15 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 Spirit Airlines. Our recent data shows that you can find tickets from as low as $206 on this airline. Additional options worth looking into are JetBlue and Delta, starting at $229 and $237 round-trip. Users have found that Spirit Airlines is 44% 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 Hawaiian Airlines, which is currently one of the cheapest options available, starting at $139. Spirit Airlines flights start at $140 while deals on United Airlines start at $144 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%), EL AL (85%), Aer Lingus( 83%).

  • 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 $1,063. The most popular route, (San Diego - Boston Logan Intl), can usually be booked for $214.

  • 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 $52 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 $69 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, 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 July is currently the most expensive (average of $311). 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
Watertown
Seabrook
Waltham
Framingham
Lowell
Randolph
Smithfield
Cranston
Chestnut Hill
Warwick
Peabody
Quincy
York Beach
Chelsea
Saco
Hampton Beach
Swansea
Lincoln

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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 julio 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$84Average$168FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$89Average$256FlexibilityNo cancel feeOn-time65%
Hawaiian AirlinesCheapest$143Average$349FlexibilityNo cancel feeOn-time85%
DeltaCheapest$160Average$355FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$173Average$369FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$238Average$436FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$246Average$438FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$258Average$460FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$277Average$449FlexibilityNo cancel feeOn-time63%

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