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Cheap flights from San Diego to Boston from £94

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 14/11. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — BOS
12 Oct — 19 Oct1
1 adult
1 adult, Economy

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 12 September 2025.

Round-trip from

£125

One-way from

£94

Popular in

December

Cheapest in

January

Average price

£253

Good one-way deal

£91 or less
Southwest
  • Southwest
  • 11/11-15/11
  • 2 total stops
  • 15h 35m total
  • San Diego to Boston
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Southwest
  • Southwest
  • 24/10
  • 1 total stop
  • 8h 45m total
  • San Diego to Boston
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Highest demand for flights based on searches. 1% potential increase in price (£3 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease (£6 potential savings vs. average return price).
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Average for round-trip flights in September 2025
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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 12 September 2025.

Tue 11/1121:45SAN - BOS
1 stop7h 30mSouthwest
Sat 15/1116:45BOS - SAN
1 stop8h 05mSouthwest
Deal found 10/9£125
Sat 6/1207:00SAN - BOS
1 stop9h 35mSouthwest
Tue 9/1218:00BOS - SAN
1 stop8h 25mSouthwest
Deal found 10/9£128
Mon 10/1121:45SAN - BOS
1 stop8h 55mSouthwest
Wed 12/1118:00BOS - SAN
1 stop8h 25mSouthwest
Deal found 9/9£133
Wed 29/1018:25SAN - BOS
1 stop11h 55mSouthwest
Sat 1/1105:20BOS - SAN
1 stop8h 30mSouthwest
Deal found 10/9£138
Wed 1/1021:10SAN - BOS
1 stop8h 05mSouthwest
Sat 4/1005:05BOS - SAN
1 stop8h 30mSouthwest
Deal found 10/9£154
Sat 25/1006:35SAN - BOS
1 stop11h 15mSouthwest
Sat 1/1105:20BOS - SAN
1 stop8h 30mSouthwest
Deal found 9/9£155
Sun 7/1206:40SAN - BOS
1 stop7h 35mSouthwest
Tue 9/1218:00BOS - SAN
1 stop8h 25mSouthwest
Deal found 10/9£157

Cheapflights Fare Finder

 
Customise 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 858,174 searches. Data last updated 12 September 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

Mon 10/11

20:05-08:15

2 stops9h 10m

Boston Logan Intl

Wed 12/11

08:30-21:05

2 stops15h 35m

£162

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Sat 13/12

09:15-17:52

Nonstop5h 37m

Boston Logan Intl

Tue 16/12

16:24-20:10

Nonstop6h 46m

£168

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Tue 28/10

22:15-06:53

Nonstop5h 38m

Boston Logan Intl

Sat 1/11

17:25-20:44

Nonstop6h 19m

£182

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Sat 25/10

22:15-06:53

Nonstop5h 38m

Boston Logan Intl

Sat 1/11

17:25-20:44

Nonstop6h 19m

£182

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Thu 30/10

13:55-00:30

1 stop7h 35m

Boston Logan Intl

Tue 4/11

13:35-21:10

2 stops10h 35m

£188

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Fri 7/11

14:05-00:05

1 stop7h 00m

Boston Logan Intl

Mon 10/11

06:10-11:35

1 stop8h 25m

£193

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Sat 4/10

14:11-00:50

1 stop7h 39m

Boston Logan Intl

Tue 7/10

05:30-11:24

1 stop8h 54m

£193

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Fri 31/10

11:25-21:30

1 stop7h 05m

Boston Logan Intl

Tue 4/11

13:35-21:10

2 stops10h 35m

£196

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Fri 24/10

21:35-06:20

Nonstop5h 45m

Boston Logan Intl

Thu 30/10

15:45-19:16

Nonstop6h 31m

£197

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Tue 28/10

20:08-15:41

1 stop16h 33m

Boston Logan Intl

Sat 1/11

18:59-09:40

1 stop17h 41m

£197

Flights are sorted by cheapest return flights first.

Deals found on 10/9

Showing 1-10 of 22 results
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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 return 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 return flight from San Diego to Boston. Price data was last updated on 29 August 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, October is the cheapest month in which you can book a flight from San Diego to Boston (average of £10). Flying from San Diego to Boston in July is currently the most expensive (average of £724). 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 12 September 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from San Diego to Boston as you normally would.

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.

  • How popular is this San Diego to Boston flight route?

    Flights from San Diego to Boston Logan Intl have been viewed 3 times in the past calendar month.

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

    Airlines like Southwest, Alaska Airlines, and Delta fly from San Diego to Boston in about 5h 37m. The time it takes to get you to your destination can typically vary by up to 3h 33m. The distance from San Diego to Boston is about 2581 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the most reliable airlines from San Diego to Boston?

    The top 3 most reliable airlines when flying from San Diego to Boston are KLM (100%), Air France (91%) and Japan Airlines (90%).

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

    Looking for the cheapest flight from San Diego to Boston? While on average our users pay £102, our data indicates the cheapest price to be £87. The most popular route (San Diego - Boston Logan Intl), is priced around £190.

  • 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 holiday packages that include both flights and hotel.

  • How can I find direct flights from San Diego to Boston?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Diego to Boston.

  • Can I find deals for business class flights from San Diego to Boston?

    Yes. Cheapflights offers flight deals from San Diego to Boston by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from San Diego to Boston?

    Currently, October is the cheapest month in which you can book a flight from San Diego to Boston (average of £10). Flying from San Diego to Boston in July is currently the most expensive (average of £724). 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

Travelling to a place near Boston?

Book flights to Boston if you plan to visit one of these locations
Burlington
Peabody
Cambridge
Somerville
Quincy
Chelmsford

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for San Diego to Boston

See prices for flight routes from nearby airports that may be better suited for you.
San Francisco to Boston flights
Los Angeles to Boston flights

Fly with Cheapflights

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How does Cheapflights help users find flights from San Diego to Boston?

Cheapflights makes it easy to find San Diego to Boston flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from San Diego to Boston?

Millions of users choose and trust Cheapflights to book the best flight deals from San Diego to Boston for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from San Diego to Boston with no change fees?

Yes! Cheapflights helps users easily find flights from San Diego to Boston with no change fees.

Can Cheapflights notify me if prices for flights from San Diego to Boston become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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