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Cheap flights from San Diego to Boston from £90

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 15/11. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — BOS
30 Nov — 7 Dec1
1 adult
1 adult, Economy, 0 bags

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 31 October 2025.

Round-trip from

£161

One-way from

£90

Popular in

December

Cheapest in

January

Average price

£256
Delta
  • Delta
  • 6/12-11/12
  • Nonstop
  • 12h 04m total
  • San Diego to Boston
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Delta
  • Delta
  • 14/11
  • Nonstop
  • 5h 27m total
  • San Diego to Boston
Search Deals
Highest demand for flights based on searches. 0% potential increase in price (£1 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£5 potential savings vs. average return price).
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Average for round-trip flights in October 2025
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Find 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 31 October 2025.

Sat 6/1211:49SAN - BOS
Nonstop5h 36mJetBlue
Thu 11/1211:40BOS - SAN
1 stop10h 31mJetBlue
Deal found 30/10£161
Thu 13/1120:39SAN - BOS
Nonstop5h 31mJetBlue
Mon 17/1107:00BOS - SAN
Nonstop6h 39mJetBlue
Deal found 30/10£165
Sat 6/1222:20SAN - BOS
Nonstop5h 30mDelta
Thu 11/1217:25BOS - SAN
Nonstop6h 34mDelta
Deal found 29/10£168
Thu 13/1120:08SAN - BOS
1 stop16h 33mAlaska Airlines
Mon 17/1116:24BOS - SAN
Nonstop6h 39mAlaska Airlines
Deal found 29/10£172
Thu 27/1112:49SAN - BOS
Nonstop5h 27mJetBlue
Thu 4/1213:40BOS - SAN
1 stop8h 31mJetBlue
Deal found 29/10£173
Thu 11/1218:30SAN - BOS
1 stop9h 59mAlaska Airlines
Sat 13/1216:24BOS - SAN
Nonstop6h 46mAlaska Airlines
Deal found 30/10£176
Thu 4/1206:15SAN - BOS
1 stop30h 22mAlaska Airlines
Sun 7/1216:24BOS - SAN
Nonstop6h 46mAlaska Airlines
Deal found 30/10£178
Wed 17/1207:00SAN - BOS
1 stop7h 15mUnited Airlines
Wed 31/1216:15BOS - SAN
1 stop9h 36mUnited Airlines
Deal found 29/10£179
Thu 13/1122:28SAN - BOS
Nonstop5h 27mDelta
Sun 16/1117:25BOS - SAN
Nonstop6h 33mDelta
Deal found 31/10£180
Mon 17/1120:39SAN - BOS
Nonstop5h 31mJetBlue
Tue 6/110:25BOS - SAN
Nonstop6h 40mJetBlue
Deal found 29/10£184
Tue 2/1206:40SAN - BOS
1 stop12h 35mSouthwest
Tue 9/1213:35BOS - SAN
2 stops10h 35mSouthwest
Deal found 31/10£184
Fri 14/1121:59SAN - BOS
1 stop14h 42mAlaska Airlines
Mon 17/1116:24BOS - SAN
Nonstop6h 39mAlaska Airlines
Deal found 29/10£187

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 31 October 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 15/11

20:39-05:10

Nonstop5h 31m

Boston Logan Intl

Mon 17/11

15:45-19:16

Nonstop6h 31m

£165

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Thu 13/11

20:39-05:10

Nonstop5h 31m

Boston Logan Intl

Mon 17/11

07:00-10:39

Nonstop6h 39m

£165

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Wed 28/1

21:00-07:41

1 stop7h 41m

Boston Logan Intl

Mon 2/2

07:30-14:10

1 stop9h 40m

£165

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Wed 12/11

20:39-05:10

Nonstop5h 31m

Boston Logan Intl

Sun 16/11

07:00-10:39

Nonstop6h 39m

£165

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Wed 28/1

22:04-06:30

Nonstop5h 26m

Boston Logan Intl

Mon 2/2

17:10-20:52

Nonstop6h 42m

£168

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Tue 13/1

09:10-17:44

Nonstop5h 34m

Boston Logan Intl

Mon 19/1

16:20-20:00

Nonstop6h 40m

£168

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Thu 11/12

22:20-06:50

Nonstop5h 30m

Boston Logan Intl

Sat 13/12

17:25-20:59

Nonstop6h 34m

£168

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Fri 16/1

21:30-05:54

Nonstop5h 24m

Boston Logan Intl

Sun 25/1

05:10-14:10

1 stop12h 00m

£168

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Thu 11/12

18:30-07:29

1 stop9h 59m

Boston Logan Intl

Sat 13/12

16:24-20:10

Nonstop6h 46m

£176

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Sat 14/2

09:15-18:09

Nonstop5h 54m

Boston Logan Intl

Sat 21/2

16:20-19:44

Nonstop6h 24m

£187

Flights are sorted by cheapest return flights first.

Deals found on 30/10

Showing 1-10 of 21 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 24 October 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, March is the cheapest month in which you can book a flight from San Diego to Boston (average of £74). Flying from San Diego to Boston in June is currently the most expensive (average of £143). 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 31 October 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 83% on flights from San Diego to Boston by exploring options for tickets in the afternoon.

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 JetBlue and Delta fly from San Diego to Boston in about 5h 26m. The time it takes to get you to your destination is usually consistent. The distance from San Diego to Boston is about 2581 mi. Most flights are nonstop.

  • What are the cheapest airlines to fly from San Diego to Boston one-way?

    £90 is the cheapest one-way deal found within the past few days, from Southwest. You may also be able to find cheap deals on Delta and JetBlue, with prices starting from £90 and £91, respectively.

  • 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 (91%), Aer Lingus (90%) and EL AL (90%).

  • 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, March is the cheapest month in which you can book a flight from San Diego to Boston (average of £74). Flying from San Diego to Boston in June is currently the most expensive (average of £143). 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
Cambridge
Peabody
Somerville
Quincy
Waltham
Chelmsford

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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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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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