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Cheap flights from Boston to San Diego from £92

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 3/5. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SAN
2 Apr — 9 Apr1
1 adult

Cheap flight deals from Boston to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to San Diego (SAN). 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 28 March 2025.

Round-trip from

£152

One-way from

£92

Popular in

December

Cheapest in

January

Average price

£295
JetBlue
  • JetBlue
  • 28/5-3/6
  • Nonstop
  • 12h 00m total
  • Boston to San Diego
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Hawaiian Airlines
  • Hawaiian Airlines
  • 3/5
  • Nonstop
  • 6h 31m total
  • Boston to San Diego
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High demand for flights, 2% potential price rise
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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 Boston to San Diego

Cheapest flights from Boston to San Diego
Explore the most affordable flight options available from Boston to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 March 2025.

Wed 28/509:00BOS - SAN
Nonstop6h 13mJetBlue
Tue 3/620:25SAN - BOS
Nonstop5h 47mJetBlue
Deal found 27/3£152
Thu 15/516:49BOS - SAN
Nonstop6h 23mAlaska Airlines
Tue 20/506:15SAN - BOS
1 stop20h 25mAlaska Airlines
Deal found 28/3£160
Tue 8/417:20BOS - SAN
1 stop9h 05mSouthwest
Thu 10/417:55SAN - BOS
1 stop11h 50mSouthwest
Deal found 28/3£172
Sat 3/507:45BOS - SAN
1 stop9h 01mUnited Airlines
Mon 5/512:45SAN - BOS
1 stop8h 14mUnited Airlines
Deal found 27/3£179
Thu 29/516:49BOS - SAN
Nonstop6h 23mHawaiian Airlines
Sun 1/622:45SAN - BOS
Nonstop5h 55mHawaiian Airlines
Deal found 27/3£183
Tue 15/417:15BOS - SAN
Nonstop6h 20mDelta
Wed 23/421:51SAN - BOS
Nonstop5h 29mDelta
Deal found 27/3£203
Sat 19/406:30BOS - SAN
1 stop13h 48mSun Country Air
Fri 25/417:35SAN - BOS
1 stop14h 00mSun Country Air
Deal found 28/3£271

Cheapflights Fare Finder

Customise your flight search to find flights from Boston to San Diego 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 28 March 2025.
Use the filters below to find and compare flights from Boston to San Diego that are best for you.

Fly from

Boston

Fly to

San Diego

Route

Depart

Return

Price

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Wed 28/5

09:00-12:13

Nonstop6h 13m

San Diego

Tue 3/6

20:25-05:12

Nonstop5h 47m

£152

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Thu 15/5

16:49-20:12

Nonstop6h 23m

San Diego

Tue 20/5

06:15-05:40

1 stop20h 25m

£160

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Tue 8/4

17:20-23:25

1 stop9h 05m

San Diego

Thu 10/4

17:55-08:45

1 stop11h 50m

£172

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Sat 3/5

07:45-13:46

1 stop9h 01m

San Diego

Mon 5/5

12:45-23:59

1 stop8h 14m

£179

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Thu 29/5

16:49-20:12

Nonstop6h 23m

San Diego

Sun 1/6

22:45-07:40

Nonstop5h 55m

£183

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Tue 15/4

17:15-20:35

Nonstop6h 20m

San Diego

Wed 23/4

21:51-06:20

Nonstop5h 29m

£203

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Sat 19/4

06:30-17:18

1 stop13h 48m

San Diego

Fri 25/4

17:35-10:35

1 stop14h 00m

£271

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Sat 3/5

16:34-20:05

Nonstop6h 31m

£92

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Sat 3/5

15:05-22:14

1 stop10h 09m

£96

BostonSan Diego

BOS - SAN

BOSSAN

Boston Logan Intl

Mon 14/4

19:59-07:39

1 stop14h 40m

£106

Flights are sorted by cheapest return flights first.

Deals found on 28/3

Showing 1-10 of 14 results
1
2

Best time to book a flight from Boston to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego from Boston 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 Boston to San Diego

How far ahead should I book a flight from Boston to San Diego?

Use this chart to determine the optimal time to book a return flight from Boston to San Diego. Price data was last updated on 21 March 2025.

To ensure you get the cheapest price possible for a flight from Boston to San Diego, you should look to book at least 53 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 Boston to San Diego?

Currently, January is the cheapest month in which you can book a flight from Boston to San Diego (average of £585). Flying from Boston to San Diego in July is currently the most expensive (average of £920). 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 BOS to SAN?

Find hourly flight availability from Boston to San Diego. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 28 March 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Boston to San Diego as you normally would.

Weekly flight availability from Boston to San Diego

Explore weekly flight availability from Boston to San Diego. 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 28 March 2025.

The most flights from BOS to SAN are scheduled on a Thursday (11 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (2 on average).

Rainfall in San Diego by month

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

In terms of precipitation, rainfall in San Diego ranges from 0.0 - 58.0 inches per month. February is typically the wettest month, when rainfall can reach 58.0 mm. July is typically the driest time to visit San Diego when rainfall is around 0.0 mm.

Temperature in San Diego by month

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

If weather is an important factor for your trip to San Diego, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 22.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 14.0 C).

Reviews of airlines servicing San Diego

Get insights into the airlines that provide service to San Diego. 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 San Diego. Reviews last updated 28 March 2025.
Get a feel of what it's like to fly with Southwest, Alaska Airlines and Delta from Boston to San Diego by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very Good
4,274 reviews
Check prices

Overall

8.1

Comfort

8.1

Boarding

8.2

Entertainment

7.6

Crew

8.7

Food

7.1

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

Overall

8.1

Comfort

8.1

Boarding

8.2

Entertainment

7.6

Crew

8.7

Food

7.1

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
9,797 reviews
Southwest
8.1
Very Good
4,274 reviews
Check prices

Overall

8.1

Comfort

8.1

Boarding

8.2

Entertainment

7.6

Crew

8.7

Food

7.1

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
7,897 reviews
Southwest
8.1
Very Good
4,274 reviews
Check prices

Overall

8.1

Comfort

8.1

Boarding

8.2

Entertainment

7.6

Crew

8.7

Food

7.1

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
2,335 reviews
Southwest
8.1
Very Good
4,274 reviews
Check prices

Overall

8.1

Comfort

8.1

Boarding

8.2

Entertainment

7.6

Crew

8.7

Food

7.1

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
8,603 reviews
Southwest
8.1
Very Good
4,274 reviews
Check prices

Overall

8.1

Comfort

8.1

Boarding

8.2

Entertainment

7.6

Crew

8.7

Food

7.1

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 Boston to San Diego. 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 Boston to San Diego flight route?

    Flights from Boston Logan Intl to San Diego have been viewed 1 times in the past calendar month.

  • What are the cheapest airlines flying from Boston to San Diego round-trip?

    Currently priced at £152, JetBlue will fly you from Boston to San Diego and back. In addition to JetBlue, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Alaska Airlines and Southwest - these airlines can fly you to your destination from £160 and £172, respectively. JetBlue is priced at 49% lower than the current average price of a flight leaving 3 months from now.

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

    For one-way options, check prices for Hawaiian Airlines. According to our data, you can fly for as low as £92. Users have also found prices from £96 and £106 on United Airlines and Alaska Airlines, respectively.

  • What are the most reliable airlines from Boston to San Diego?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Boston to San Diego on time: American Airlines (79%), Alaska Airlines (79%), Hawaiian Airlines (79%).

  • Can I find deals for flights from Boston to San Diego that include hotel bookings?

    Yes. In addition to deals on Boston to San Diego flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Boston to San Diego?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boston to San Diego.

  • Can I find deals for business class flights from Boston to San Diego?

    Yes. Cheapflights offers flight deals from Boston to San Diego 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 Boston to San Diego?

    Currently, January is the cheapest month in which you can book a flight from Boston to San Diego (average of £585). Flying from Boston to San Diego in July is currently the most expensive (average of £920). 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?

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When you search for this flight from Boston to San Diego, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to San Diego from Boston.

Can Cheapflights find flights from Boston to San Diego with no change fees?

Yes, we can. To see specific flights from Boston to San Diego with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Boston to San Diego become cheaper?

Not ready to book yet? You can track prices for flights from Boston to San Diego on Cheapflights with our Price Alert feature and get notified when better prices are available.

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