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Cheap flights from San Diego to Boston from £99

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 29/4. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — BOS
26 Feb — 5 Mar1
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 21 February 2025.

Round-trip from

£188

One-way from

£99

Popular in

December

Cheapest in

January

Average price

£283

Good round-trip deal

£259 or less
Delta
  • Delta
  • 18/3-25/3
  • Nonstop
  • 11h 49m total
  • San Diego to Boston
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United Airlines
  • United Airlines
  • 29/4
  • 1 total stop
  • 8h 14m total
  • San Diego to Boston
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High demand for flights, 3% potential price rise
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Cheapest flight prices on average. 2% potential price decrease (£6 potential savings vs. average return price).
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Average for round-trip flights in February 2025
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Price to beat on a round-trip 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 21 February 2025.

Tue 18/322:04SAN - BOS
Nonstop5h 16mDelta
Wed 26/317:10BOS - SAN
Nonstop6h 33mDelta
Deal found 20/2£188
Tue 18/310:24SAN - BOS
1 stop27h 03mAlaska Airlines
Wed 26/316:49BOS - SAN
Nonstop6h 47mAlaska Airlines
Deal found 20/2£190
Wed 19/321:37SAN - BOS
1 stop7h 31mJetBlue
Tue 25/315:10BOS - SAN
Nonstop6h 28mJetBlue
Deal found 21/2£196
Fri 23/522:45SAN - BOS
Nonstop5h 55mHawaiian Airlines
Sun 25/516:49BOS - SAN
Nonstop6h 23mHawaiian Airlines
Deal found 20/2£259
Tue 3/606:30SAN - BOS
1 stop9h 40mSouthwest
Sat 7/605:50BOS - SAN
2 stops8h 45mSouthwest
Deal found 20/2£283
Wed 2/412:45SAN - BOS
1 stop8h 14mUnited Airlines
Tue 8/411:25BOS - SAN
2 stops15h 53mUnited Airlines
Deal found 21/2£284

Find flights from San Diego to Boston within your budget

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 21 February 2025.

Fly from

San Diego

Fly to

Boston

Route

Depart

Return

Price

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Tue 18/3

22:04-06:20

Nonstop5h 16m

Boston Logan Intl

Wed 26/3

17:10-20:43

Nonstop6h 33m

£188

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Tue 18/3

10:24-16:27

1 stop27h 03m

Boston Logan Intl

Wed 26/3

16:49-20:36

Nonstop6h 47m

£190

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Wed 19/3

21:37-08:08

1 stop7h 31m

Boston Logan Intl

Tue 25/3

15:10-18:38

Nonstop6h 28m

£196

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Fri 23/5

22:45-07:40

Nonstop5h 55m

Boston Logan Intl

Sun 25/5

16:49-20:12

Nonstop6h 23m

£259

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Tue 3/6

06:30-19:10

1 stop9h 40m

Boston Logan Intl

Sat 7/6

05:50-11:35

2 stops8h 45m

£283

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Wed 2/4

12:45-23:59

1 stop8h 14m

Boston Logan Intl

Tue 8/4

11:25-00:18

2 stops15h 53m

£284

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Wed 2/4

18:18-10:49

1 stop13h 31m

Boston Logan Intl

Sun 6/4

07:17-17:19

1 stop13h 02m

£368

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Tue 29/4

12:45-23:59

1 stop8h 14m

£99

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Tue 18/3

19:55-16:27

1 stop17h 32m

£101

San DiegoBoston

SAN - BOS

SANBOS

San Diego

Wed 19/3

21:37-08:08

1 stop7h 31m

£102

Flights are sorted by cheapest return flights first.

Deals found on 21/2

Showing 1-10 of 15 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.

Travel insights for flights from San Diego to Boston

Get recent, data-driven insights about flights from San Diego to Boston including ideal travel times, pricing trends, and more.

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 14 February 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 21 February 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 48% 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 21 February 2025.

The most flights from SAN to BOS are scheduled on a Friday (12 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (1 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 21 February 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
4,408 reviews
Check prices

Entertainment

7.6

Crew

8.7

Boarding

8.2

Overall

8.1

Comfort

8.1

Food

7.1

Reviews

1 / 20

2.0
Mediocre

Bhoopal,Nov 2024

STL - BOS

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

Southwest
8.1
Very Good
4,408 reviews
Southwest
8.1
Very Good
4,408 reviews
Check prices

Entertainment

7.6

Crew

8.7

Boarding

8.2

Overall

8.1

Comfort

8.1

Food

7.1

Reviews

1 / 20

2.0
Mediocre

Bhoopal,Nov 2024

STL - BOS

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

Alaska Airlines
8.0
Very Good
9,697 reviews
Southwest
8.1
Very Good
4,408 reviews
Check prices

Entertainment

7.6

Crew

8.7

Boarding

8.2

Overall

8.1

Comfort

8.1

Food

7.1

Reviews

1 / 20

2.0
Mediocre

Bhoopal,Nov 2024

STL - BOS

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

Delta
8.0
Very Good
8,217 reviews
Southwest
8.1
Very Good
4,408 reviews
Check prices

Entertainment

7.6

Crew

8.7

Boarding

8.2

Overall

8.1

Comfort

8.1

Food

7.1

Reviews

1 / 20

2.0
Mediocre

Bhoopal,Nov 2024

STL - BOS

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

Hawaiian Airlines
7.9
Good
2,317 reviews
Southwest
8.1
Very Good
4,408 reviews
Check prices

Entertainment

7.6

Crew

8.7

Boarding

8.2

Overall

8.1

Comfort

8.1

Food

7.1

Reviews

1 / 20

2.0
Mediocre

Bhoopal,Nov 2024

STL - BOS

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

JetBlue
7.4
Good
3,069 reviews
Southwest
8.1
Very Good
4,408 reviews
Check prices

Entertainment

7.6

Crew

8.7

Boarding

8.2

Overall

8.1

Comfort

8.1

Food

7.1

Reviews

1 / 20

2.0
Mediocre

Bhoopal,Nov 2024

STL - BOS

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

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 Delta. Our recent data shows that you can find tickets from as low as £188 on this airline. Additional options worth looking into are Alaska Airlines and JetBlue, starting at £190 and £204 round-trip. These flights start at 39% lower than the current average price 3 months from now.

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

    £99 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on Alaska Airlines and JetBlue, with prices starting from £101 and £102, 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 American Airlines (82%), Qatar Airways (82%) and Alaska Airlines (82%).

  • 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 £451, our data indicates the cheapest price to be £200. The most popular route (San Diego - Boston Logan Intl), is priced around £225.

  • 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
Chelmsford
Chelsea
Burlington
Kittery

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Alternative routes for San Diego to Boston

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