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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 16/5. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — BOS
31 Mar — 7 Apr1
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 26 March 2025.

Round-trip from

£152

One-way from

£107

Popular in

June

Cheapest in

January

Average price

£322
Alaska Airlines
  • Alaska Airlines
  • 29/5-4/6
  • Nonstop
  • 12h 16m total
  • San Diego to Boston
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JetBlue
  • JetBlue
  • 16/5
  • Nonstop
  • 5h 39m total
  • San Diego to Boston
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (£17 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 March 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 26 March 2025.

Thu 29/522:45SAN - BOS
Nonstop5h 55mAlaska Airlines
Wed 4/608:40BOS - SAN
Nonstop6h 21mAlaska Airlines
Deal found 26/3£152
Tue 3/620:25SAN - BOS
Nonstop5h 47mJetBlue
Wed 4/609:00BOS - SAN
Nonstop6h 13mJetBlue
Deal found 24/3£163
Wed 2/422:04SAN - BOS
Nonstop5h 16mDelta
Mon 7/417:25BOS - SAN
Nonstop6h 20mDelta
Deal found 24/3£168
Mon 7/419:20SAN - BOS
2 stops9h 50mSouthwest
Wed 9/417:20BOS - SAN
1 stop9h 05mSouthwest
Deal found 25/3£172
Tue 22/420:30SAN - BOS
1 stop7h 51mUnited Airlines
Tue 29/411:10BOS - SAN
1 stop10h 19mUnited Airlines
Deal found 26/3£179
Sat 3/509:50SAN - BOS
Nonstop5h 52mHawaiian Airlines
Mon 5/516:34BOS - SAN
Nonstop6h 31mHawaiian Airlines
Deal found 25/3£187
Thu 10/418:10SAN - BOS
1 stop13h 32mSun Country Air
Sat 19/406:30BOS - SAN
1 stop13h 48mSun Country Air
Deal found 26/3£267

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 26 March 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

Thu 29/5

22:45-07:40

Nonstop5h 55m

Boston Logan Intl

Wed 4/6

08:40-12:01

Nonstop6h 21m

£152

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Tue 3/6

20:25-05:12

Nonstop5h 47m

Boston Logan Intl

Wed 4/6

09:00-12:13

Nonstop6h 13m

£163

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Mon 7/4

19:20-08:10

2 stops9h 50m

Boston Logan Intl

Wed 9/4

17:20-23:25

1 stop9h 05m

£172

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Tue 22/4

20:30-07:21

1 stop7h 51m

Boston Logan Intl

Tue 29/4

11:10-18:29

1 stop10h 19m

£179

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Tue 13/5

21:44-06:20

Nonstop5h 36m

Boston Logan Intl

Wed 21/5

17:10-20:29

Nonstop6h 19m

£183

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Sat 3/5

09:50-18:42

Nonstop5h 52m

Boston Logan Intl

Mon 5/5

16:34-20:05

Nonstop6h 31m

£187

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Thu 10/4

18:10-10:42

1 stop13h 32m

Boston Logan Intl

Sat 19/4

06:30-17:18

1 stop13h 48m

£267

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Fri 16/5

14:59-23:38

Nonstop5h 39m

£107

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Fri 2/5

12:45-23:59

1 stop8h 14m

£111

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Fri 16/5

22:15-05:40

1 stop28h 25m

£114

Flights are sorted by cheapest return flights first.

Deals found on 25/3

Showing 1-10 of 15 results
1
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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 21 March 2025.

To ensure you get the cheapest price possible for a flight from San Diego to Boston, you should look to book at least 71 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 26 March 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.

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 26 March 2025.

The most flights from SAN to BOS are scheduled on a Tuesday (13 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (4 on average).

Rainfall in Boston by month

Plan your trip to Boston by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Boston ranges from 78.0 - 101.0 inches per month. March is typically the wettest month, when rainfall can reach 101.0 mm. July is typically the driest time to visit Boston when rainfall is around 78.0 mm.

Temperature in Boston by month

Plan your trip to Boston by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Boston, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -1.0 C).

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 26 March 2025.
Get a feel of what it's like to fly with Southwest, Alaska Airlines and Delta 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.
Southwest
8.1
Very Good
4,274 reviews
Check prices

Crew

8.6

Entertainment

7.6

Boarding

8.2

Comfort

8.1

Food

7.1

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
Southwest
8.1
Very Good
4,274 reviews
Southwest
8.1
Very Good
4,274 reviews
Check prices

Crew

8.6

Entertainment

7.6

Boarding

8.2

Comfort

8.1

Food

7.1

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
Alaska Airlines
8.0
Very Good
9,789 reviews
Southwest
8.1
Very Good
4,274 reviews
Check prices

Crew

8.6

Entertainment

7.6

Boarding

8.2

Comfort

8.1

Food

7.1

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
Delta
8.0
Very Good
7,891 reviews
Southwest
8.1
Very Good
4,274 reviews
Check prices

Crew

8.6

Entertainment

7.6

Boarding

8.2

Comfort

8.1

Food

7.1

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
Hawaiian Airlines
7.9
Good
2,334 reviews
Southwest
8.1
Very Good
4,274 reviews
Check prices

Crew

8.6

Entertainment

7.6

Boarding

8.2

Comfort

8.1

Food

7.1

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
United Airlines
7.4
Good
8,608 reviews
Southwest
8.1
Very Good
4,274 reviews
Check prices

Crew

8.6

Entertainment

7.6

Boarding

8.2

Comfort

8.1

Food

7.1

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

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 Alaska Airlines. Our recent data shows that you can find tickets from as low as £152 on this airline. Additional options worth looking into are JetBlue and Southwest, starting at £163 and £172 round-trip. These flights start at 49% lower than the current average price 3 months from now.

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

    £107 is the cheapest one-way deal found within the past few days, from JetBlue. You may also be able to find cheap deals on United Airlines and Alaska Airlines, with prices starting from £111 and £114, 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 Aer Lingus (89%), American Airlines (85%) and Qatar Airways (85%).

  • 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 San Diego?

Book flights to San Diego if you plan to visit one of these locations
Cambridge
Somerville
Quincy
Chelmsford
Chelsea
Burlington
Kittery

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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?

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.

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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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