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Cheap flights from San Diego to Boston from £107

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 11/6. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — BOS
26 Apr — 3 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from San Diego to Boston

Enter your travel dates to find the best prices.

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 27 March 2026.

Tue 28/421:59
SAN
-
BOS
Nonstop5h 31m
Delta
Wed 6/517:44
BOS
-
SAN
Nonstop6h 29m
Delta
Deal found 26/3£178
Wed 6/514:14
SAN
-
BOS
1 stop7h 45m
United Airlines
Wed 13/516:52
BOS
-
SAN
1 stop8h 24m
United Airlines
Deal found 26/3£189
Wed 3/611:50
SAN
-
BOS
1 stop9h 04m
Delta
Wed 10/617:15
BOS
-
SAN
1 stop7h 55m
Delta
Deal found 26/3£193
Tue 5/521:40
SAN
-
BOS
1 stop7h 35m
Southwest
Tue 12/514:25
BOS
-
SAN
1 stop8h 10m
Southwest
Deal found 22/3£193
Tue 28/419:40
SAN
-
BOS
2 stops9h 35m
Southwest
Tue 5/514:25
BOS
-
SAN
1 stop8h 10m
Southwest
Deal found 25/3£196
Mon 20/421:59
SAN
-
BOS
Nonstop5h 31m
Delta
Tue 28/417:44
BOS
-
SAN
Nonstop6h 29m
Delta
Deal found 26/3£197
Fri 8/521:49
SAN
-
BOS
Nonstop5h 41m
Delta
Tue 12/517:15
BOS
-
SAN
Nonstop6h 21m
Delta
Deal found 25/3£200
Wed 15/419:12
SAN
-
BOS
1 stop7h 48m
Delta
Wed 22/418:10
BOS
-
SAN
1 stop8h 28m
Delta
Deal found 26/3£204

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 27 March 2026.

Round-trip from

£178

One-way from

£107

Popular in

December

Cheapest in

January

Average price

£282
Delta
  • Delta
  • 28/4-6/5
  • Nonstop
  • 12h 00m total
  • San Diego to Boston
Search Deals
Southwest
  • Southwest
  • 11/6
  • Nonstop
  • 5h 25m total
  • San Diego to Boston
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (£9 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£5 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

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 27 March 2026.
Use the filters below to find and compare flights from San Diego to Boston that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Wed 29/4

21:59-06:30

Nonstop5h 31m

Boston Logan Intl

Wed 6/5

06:00-12:03

1 stop9h 03m

£185

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Thu 4/6

11:00-00:40

1 stop10h 40m

Boston Logan Intl

Tue 9/6

17:10-20:26

Nonstop6h 16m

£205

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Mon 18/5

20:54-05:44

Nonstop5h 50m

Boston Logan Intl

Sat 30/5

18:40-22:09

Nonstop6h 29m

£217

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Sat 9/5

06:25-21:25

2 stops12h 00m

Boston Logan Intl

Sat 16/5

18:00-23:15

1 stop8h 15m

£237

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Thu 4/6

14:55-01:00

1 stop7h 05m

Boston Logan Intl

Tue 9/6

16:25-19:35

Nonstop6h 10m

£242
Fastest return journey

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Wed 8/7

21:53-06:30

Nonstop5h 37m

Boston Logan Intl

Wed 22/7

17:10-20:25

Nonstop6h 15m

£243

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Tue 7/7

21:05-08:17

1 stop8h 12m

Boston Logan Intl

Tue 21/7

05:45-10:49

1 stop8h 04m

£249

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Fri 8/5

12:40-00:50

1 stop9h 10m

Boston Logan Intl

Mon 11/5

15:45-22:30

2 stops9h 45m

£253

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Tue 7/7

14:35-23:00

Nonstop5h 25m

Boston Logan Intl

Tue 21/7

16:45-22:55

1 stop9h 10m

£266

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Thu 6/8

21:30-06:00

Nonstop5h 30m

Boston Logan Intl

Sun 9/8

21:55-10:20

2 stops15h 25m

£296

Flights are sorted by cheapest return flights first.

Deals found on 25/3

Showing 1-10 of 23 resultsSorted by cheapest first
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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 13 March 2026.

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, April 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 January is currently the most expensive (average of £163). 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 27 March 2026.

Unlike in the morning, when flights are generally more expensive, you can save up to 75% on flights from San Diego to Boston by exploring options for tickets in the afternoon.

How much does it cost for a return flight from San Diego to Boston?

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 1 times in the past calendar month.

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

    Airlines like Delta, Alaska Airlines, and Southwest fly from San Diego to Boston in about 5h 31m. The time it takes to get you to your destination can typically vary by up to 6h 29m. 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 TAP AIR PORTUGAL (79%), Icelandair (78%) and Japan Airlines (78%).

  • 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, April 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 January is currently the most expensive (average of £163). 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
Canton
Waltham
Warwick
Cambridge
Peabody
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.
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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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