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Cheap flights from San Diego to Boston from £104

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 25/8. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — BOS
4 Aug — 11 Aug1
1 adult

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 30 July 2025.

Round-trip from

£178

One-way from

£104

Popular in

December

Cheapest in

January

Average price

£297
JetBlue
  • JetBlue
  • 15/10-21/10
  • Nonstop
  • 11h 59m total
  • San Diego to Boston
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Hawaiian Airlines
  • Hawaiian Airlines
  • 25/8
  • Nonstop
  • 5h 50m total
  • San Diego to Boston
Search Deals
Highest demand for flights based on searches. 1% potential increase in price (£3 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£6 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2025
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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 30 July 2025.

Wed 15/1011:45SAN - BOS
Nonstop5h 51mJetBlue
Tue 21/1007:16BOS - SAN
Nonstop6h 14mJetBlue
Deal found 29/7£178
Sat 6/919:59SAN - BOS
1 stop16h 01mAlaska Airlines
Wed 17/907:45BOS - SAN
Nonstop6h 05mAlaska Airlines
Deal found 28/7£185
Sat 25/1014:11SAN - BOS
1 stop7h 39mUnited Airlines
Tue 28/1016:10BOS - SAN
1 stop9h 10mUnited Airlines
Deal found 28/7£189
Fri 26/921:35SAN - BOS
Nonstop5h 50mHawaiian Airlines
Sat 4/1008:01BOS - SAN
Nonstop6h 17mHawaiian Airlines
Deal found 28/7£193
Tue 23/921:10SAN - BOS
1 stop10h 20mSouthwest
Tue 30/905:40BOS - SAN
2 stops11h 20mSouthwest
Deal found 28/7£196
Thu 11/906:15SAN - BOS
2 stops13h 28mSpirit Airlines
Thu 18/914:53BOS - SAN
2 stops19h 36mSpirit Airlines
Deal found 28/7£228
Tue 19/822:05SAN - BOS
Nonstop5h 44mDelta
Mon 25/818:59BOS - SAN
1 stop18h 01mDelta
Deal found 27/7£244

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 30 July 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

Wed 15/10

20:15-05:00

Nonstop5h 45m

Boston Logan Intl

Tue 21/10

07:16-10:30

Nonstop6h 14m

£178

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Sat 6/9

19:59-15:00

1 stop16h 01m

Boston Logan Intl

Sat 13/9

07:45-10:50

Nonstop6h 05m

£185

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Sat 25/10

14:11-00:50

1 stop7h 39m

Boston Logan Intl

Tue 28/10

16:10-22:20

1 stop9h 10m

£189

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Fri 26/9

21:35-06:25

Nonstop5h 50m

Boston Logan Intl

Sat 4/10

08:01-11:18

Nonstop6h 17m

£193

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Tue 23/9

21:10-10:30

1 stop10h 20m

Boston Logan Intl

Tue 30/9

05:40-14:00

2 stops11h 20m

£196

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Thu 11/9

06:15-22:43

2 stops13h 28m

Boston Logan Intl

Thu 18/9

14:53-07:29

2 stops19h 36m

£228

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Tue 12/8

22:05-06:49

Nonstop5h 44m

Boston Logan Intl

Tue 26/8

17:35-20:52

Nonstop6h 17m

£238

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Mon 25/8

21:35-06:25

Nonstop5h 50m

£104

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Thu 23/10

14:11-00:50

1 stop7h 39m

£108

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Sun 26/10

09:28-00:20

1 stop11h 52m

£111

Flights are sorted by cheapest return flights first.

Deals found on 28/7

Showing 1-10 of 14 results
1
2

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 25 July 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, 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 30 July 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 80% on flights from San Diego to Boston by exploring options for tickets at midday.

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 30 July 2025.

The most flights from SAN to BOS are scheduled on a Tuesday (23 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (7 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 30 July 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest, andDelta from San Diego to Boston by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Food

7.1

Crew

8.5

Overall

8.0

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
Check prices

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Food

7.1

Crew

8.5

Overall

8.0

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
4,238 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Food

7.1

Crew

8.5

Overall

8.0

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
7,980 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Food

7.1

Crew

8.5

Overall

8.0

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
2,605 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Food

7.1

Crew

8.5

Overall

8.0

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
8,899 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Food

7.1

Crew

8.5

Overall

8.0

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.

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

    Flights from San Diego to Boston Logan Intl have been viewed 2 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 JetBlue. Our recent data shows that you can find tickets from as low as £178 on this airline. Additional options worth looking into are Alaska Airlines and United Airlines, starting at £185 and £189 round-trip. These flights start at 36% lower than the current average price 3 months from now.

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

    £104 is the cheapest one-way deal found within the past few days, from Hawaiian Airlines. You may also be able to find cheap deals on United Airlines and Alaska Airlines, with prices starting from £108 and £111, 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 Japan Airlines (95%), EL AL (85%) and Aer Lingus (83%).

  • 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

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Alternative routes for San Diego to Boston

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

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

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

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