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Find cheap flights from Boston to San Diego from £98

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boston to San Diego departing on 31/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Sat 1/6
Sat 8/6

Search hundreds of travel sites at once for deals on flights to San Diego

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to San Diego, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to San Diego, as well as popular online travel agencies
In the last 7 days, travellers have searched 43,740,974 times on KAYAK, and here's why:

Save 28% or moreCompare multiple travel sites with one search.

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Filter your dealsChoose cabin class, free Wi-Fi and more.

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Cheap flight deals from Boston to San Diego (BOS-SAN)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boston to San Diego that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
11:12 - 16:09BOS-SAN
7h 57m1 stop
17:30 - 23:46SAN-BOS
27h 16m1 stop
£260Sun Country Air
Find Deal
Wed, 19 Jun - Sat, 13 Jul
07:00 - 10:20BOS-SAN
6h 20mdirect
21:00 - 05:30SAN-BOS
5h 30mdirect
£262Alaska Airlines
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Tue, 28 May - Wed, 29 May
16:28 - 19:51BOS-SAN
6h 23mdirect
08:50 - 17:26SAN-BOS
5h 36mdirect
£266Alaska Airlines
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Tue, 1 Oct - Wed, 9 Oct
16:07 - 19:20BOS-SAN
6h 13mdirect
20:55 - 07:15SAN-BOS
7h 20m1 stop
£269JetBlue
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Thu, 12 Sep - Fri, 20 Sep
17:15 - 20:35BOS-SAN
6h 20mdirect
21:50 - 06:24SAN-BOS
5h 34mdirect
£270Delta
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Thu, 26 Sep - Sun, 29 Sep
11:39 - 16:29BOS-SAN
7h 50m1 stop
17:15 - 10:22SAN-BOS
14h 07m1 stop
£272Sun Country Air
Find Deal
Fri, 7 Jun - Mon, 10 Jun
10:08 - 19:15BOS-SAN
12h 07m1 stop
20:41 - 07:44SAN-BOS
8h 03m1 stop
£277JetBlue
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Fri, 31 May - Mon, 3 Jun
10:51 - 20:05BOS-SAN
12h 14m1 stop
22:10 - 06:54SAN-BOS
5h 44mdirect
£287Delta
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Tue, 4 Jun - Sat, 15 Jun
08:00 - 17:37BOS-SAN
12h 37m2 stops
11:30 - 00:49SAN-BOS
10h 19m2 stops
£365United Airlines
Find Deal
Sat, 24 Aug - Sat, 31 Aug
15:15 - 22:57BOS-SAN
10h 42m1 stop
21:14 - 10:26SAN-BOS
10h 12m1 stop
£369United Airlines
Find Deal
Mon, 13 May - Wed, 15 May

Flights from Boston to San Diego - Travel Insights & Trends

Get data-powered insights and trends into flights from Boston to San Diego to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Boston to San Diego?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Boston to San Diego, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Boston to San Diego is January, where tickets cost £206 on average. On the other hand, the most expensive months are June and July, where the average cost of tickets is £391 and £386 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Boston to San Diego, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Boston to San Diego, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 59 days before departure.

Which airlines provide the cheapest flights from Boston to San Diego?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 72 hours, the cheapest one-way ticket from Boston to San Diego found on KAYAK was with Spirit Airlines for £98. Sun Country Air proposed a return connection from £260 and Alaska Airlines from £262.

Which airlines fly most frequently between Boston and San Diego?

JetBlue connects Boston to San Diego with up to 3 flights per day. Alaska Airlines also offers 1 flight per day, while Delta follows with 1 flight per day.

How many flights are there between Boston and San Diego per day?

Each day, there are between 5 and 6 nonstop flights that take off from Boston and land in San Diego, with an average flight time of 6h 15m. The most common departure time is 15:00 and most flights take off in the afternoon. Each week, there are 41 flights. The most frequent day of departure is Monday, when 15% of all weekly flights depart. The fewest flights depart on a Saturday.

Which cabin class options are there for flights between Boston and San Diego?

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There are 2 cabin class options for the route. These are Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

How long does a flight from Boston to San Diego take?

The duration of a direct flight to San Diego from Boston is typically 6h 02m. The journey crosses a distance of 2,581 miles.

What’s the earliest departure time from Boston to San Diego?

Early birds can take the earliest flight from Boston at 07:00 and will be landing in San Diego at 10:20.

What’s the latest departure time from Boston to San Diego?

If you prefer to fly at night, the latest flight from Boston to San Diego jets off at 17:20 and lands at 20:33.

Good to know - Cheap tickets from Boston to San Diego

Low season

September

High season

August

Cheapest flight

£98
Best time to beat the crowds (20% less expensive on average)
Most popular time to fly (4% more expensive on average)
Flight from Boston to San Diego

When to book flights from Boston to San Diego

Are your dates flexible? Find out the best times to travel from Boston to San Diego based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Boston to San Diego

  • Can I leave my car at Boston Logan International Airport till I return?

    You can leave your car at BOS till you return from your trip since this airport’s Central Parking Garage offers short-term and long-term parking spots. This garage is accessible to all of the airport’s terminals via pedestrian bridges on Level 4. Since its limited spots are often in demand, it’s advisable to reserve your space as early as possible.

  • Where can I breastfeed my baby before and after my flight from Boston to San Diego?

    BOS and SAN feature nursing rooms where mothers can nurse their children and pump milk. At BOS, nursing rooms are on the Landside and Airside of Terminal A and close to Gate B7, while Mamava suites are near Gate B18, Gate C8, and Gates E1 and E9. At SAN, there are lactation rooms on the second level of Terminal 1 West Rotunda, the ground level of Terminal 1 East Rotunda, and near Gate 34 in Terminal 2.

  • Where can I get emergency assistance at San Diego International Airport?

    If you need transportation assistance, emergency housing, or have general airport queries, visit Traveler’s Aid, a non-profit organization that assists stranded passengers at various USA airports. At SAN, it has counters in the Baggage Claims of Terminals 1 and 2.

  • Where can I pray before/after my flight from Boston to San Diego?

    In case you’d like a quiet place to pray before embarking on your flight, you can do so at BOS’ Our Lady of the Airways Chapel, an interfaith chapel on the Arrivals Level of Terminal C. After landing, you can pray at the airport’s Meditation room, on the Airside of Terminal 2.

  • Which airlines offering flights from Boston to San Diego are eco-friendly?

    Alaska, Jet Blue, and Delta Air Lines are ranked as the leading eco-friendly airlines in the USA. This being the case, if you’d like to travel with an airline committed to safeguarding the environment, consider traveling with these airlines.

  • Where can I rejuvenate before exiting San Diego International Airport?

    To rejuvenate, visit SAN’s Be Relax Spa near Gates 26 and 36 in Terminal 2. This spa offers elite massages and spa treatments. Here, you can count on getting value for your money, given that it boasts experienced staff.

  • What is the quickest way to get from San Diego International Airport to downtown San Diego?

    Rather than renting a car or waiting for taxis, you can take the train into the city from the airport. The fastest way to get from San Diego International Airport is by taking the Amtrak Intercity train to downtown San Diego. You will need to take the Metropolitan Transit System Route 992 to Santa Fe Depot train station downtown.

  • Are there nearby hotels at San Diego International Airport?

    There is a good choice of hotels nearby when you land at San Diego International Airport. The nearest hotel is the Holiday Inn Express San Diego Airport-Old Town, which offers a free airport shuttle for guests. Alternatively, you can check into the Sheraton San Diego Hotel & Marina, which is only half a mile away from the airport.

  • Can I fly from Boston to San Diego non-stop?

    Yes, there are two airlines that offer direct, non-stop flights from Boston to San Diego. The airlines offering these flights, which take less than seven hours, are Alaska Airlines and JetBlue Airways. Delta and American Airlines’ flights to San Diego tend to have layovers at Dallas-Fort Worth Airport.

  • Which airlines have a hub at San Diego International Airport?

    San Diego International Airport is not a hub for any airline but is a focus city for both Alaska Airlines and Southwest Airlines. The services you can expect from Alaska Airlines include complimentary snacks and beverages, as well as free movies and TV shows. On Southwest Airlines you will have free in-flight, non-alcoholic beverages as well as complimentary pretzels and Nabisco snacks.

  • What is the cheapest flight from Boston to San Diego?

    In the last 3 days, the lowest price for a flight from Boston to San Diego was £122 for a one-way ticket and £325 for a return.

  • Which airlines offer Wi-Fi service onboard planes from Boston to San Diego?

    JetBlue, Alaska Airlines, American Airlines, and Delta offer inflight Wi-Fi service on the Boston to San Diego flight route.

  • Which aircraft models fly most regularly from Boston to San Diego?

    The Airbus A321neo is the aircraft model that flies most regularly on the Boston to San Diego flight route.

  • Which airline alliances offer flights from Boston to San Diego?

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between Boston and San Diego, with oneworld being the most commonly used for this route.

  • On which days can I fly direct from Boston to San Diego?

    There are direct flights from Boston to San Diego on a daily basis.

  • How does KAYAK find such low prices on flights from Boston to San Diego?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Boston to San Diego.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Boston to San Diego?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Diego from Boston is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Boston to San Diego?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to San Diego with an airline and back to Boston with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boston to San Diego?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Diego from Boston up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding a cheap flight from Boston to San Diego

  • Boston Logan International Airport (BOS) is Greater Boston’s and New England’s primary airport. Located 3 miles from Boston’s downtown, this air transit hub serves as a hub for Delta and Cape Air and a focus city for JetBlue. San Diego International Airport (SAN) is the primary airport for the Greater San Diego Area. It’s located three miles northwest of downtown San Diego.
  • If you want to travel to BOS via public transit, you can take the MBTA Blue Line to the Airport Station. At this station, you’ll transfer to a Massport Shuttle bus which will drop you at your terminal. Alternatively, you can take the MBTA Red Line or Commuter Rail to South Station. At this station, you’ll transfer to a Route SL1 Silver Line bus which will transport you to your terminal.
  • At SAN, you can rent a car quite easily, given that this airport features an off-site Consolidated Rental Car Center. The facility is accessible by free shuttles that connects it to the airport. It houses locations for multiple car rental agencies, including Enterprise, Avis, Dollar, Firefly, Fox, Hertz, Ace, and Zipcar.
  • Looking to relax before your flight from Boston to San Diego? There are several airline lounges at Boston Logan Airport, open to all classes of passenger. Delta Sky Club has two locations in Terminal A or there is the American Airlines Admirals Club located in Terminal B. Alternatively, you can check into the Be Relax spa in Terminal C.
  • If you need to entertain the children on your flight to San Diego, you will find three play areas located around Boston Logan Airport. Offering a safe place for your children to play, Kidport is equipped with climbing structures, a kid-sized replica of Boston Logan’s control tower, plus lots more. You will find one at Terminals A, B, and C.
  • If you are bringing your service animal or pet on your flight from Boston to San Diego, before you fly you will find pet relief areas outside every terminal, on the Arrivals level of Boston Logan Airport. You will also find a pet relief area at Terminal E, post-security. Once you land at San Diego International Airport, you will find seven pet relief areas, both indoor and outdoor.
  • If you or someone you are traveling with has a disability, there are plenty of services and amenities at Boston Logan Airport to make their visit comfortable. In addition to accessible restrooms in each terminal, there are elevators and ramps to make accessing terminals, garages, and curbs easier.
  • Where are the best places to eat at Boston Logan Airport? Terminal B at Boston Logan Airport has the best selection of restaurants, mainly pre-security. From Villa Pizza and WPizza by Wolfgang Puck to three Dunkin‘ Donuts outlets and two Legal Seafoods restaurants, you will have many dining options. If you are craving some local cuisine, head to Dine Boston to experience delicious seasonal ingredients from guest chefs at Terminal E.
See more tips

Prefer to fly direct from Boston to San Diego?

Find which airlines fly direct from Logan Intl to San Diego, which days they fly and book direct flights.

Direct departures

Boston Logan Intl to San Diego

Monday

Aer Lingus, Alaska Airlines, American Airlines, +8 more

Aer Lingus, Alaska Airlines, +9 more

Tuesday

Aer Lingus, Alaska Airlines, American Airlines, +7 more

Aer Lingus, Alaska Airlines, +8 more

Wednesday

Aer Lingus, Alaska Airlines, American Airlines, +8 more

Aer Lingus, Alaska Airlines, +9 more

Thursday

Aer Lingus, Alaska Airlines, American Airlines, +7 more

Aer Lingus, Alaska Airlines, +8 more

Friday

Aer Lingus, Alaska Airlines, American Airlines, +7 more

Aer Lingus, Alaska Airlines, +8 more

Saturday

Aer Lingus, Alaska Airlines, American Airlines, +6 more

Aer Lingus, Alaska Airlines, +7 more

Sunday

Aer Lingus, Alaska Airlines, American Airlines, +7 more

Aer Lingus, Alaska Airlines, +8 more

See more direct flights

Direct returns

San Diego to Boston Logan Intl

Monday

Aer Lingus, Alaska Airlines, American Airlines, +6 more

Aer Lingus, Alaska Airlines, +7 more

Tuesday

Aer Lingus, Alaska Airlines, American Airlines, +7 more

Aer Lingus, Alaska Airlines, +8 more

Wednesday

Aer Lingus, Alaska Airlines, American Airlines, +6 more

Aer Lingus, Alaska Airlines, +7 more

Thursday

Aer Lingus, Alaska Airlines, American Airlines, +6 more

Aer Lingus, Alaska Airlines, +7 more

Friday

Aer Lingus, Alaska Airlines, American Airlines, +6 more

Aer Lingus, Alaska Airlines, +7 more

Saturday

Alaska Airlines, American Airlines, Delta, +6 more

Alaska Airlines, American Airlines, +7 more

Sunday

Aer Lingus, Alaska Airlines, American Airlines, +6 more

Aer Lingus, Alaska Airlines, +7 more

See more direct flights
See more direct flights

Book cheap flights from Boston to San Diego

Cheapest flights to San Diego from Boston found in 2024

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Boston to San Diego found on KAYAK in the last 72 hours.
31/5Fri
1 stopSpirit Airlines
13h 24mBOS-SAN
£98
31/5Fri
2 stopsSpirit Airlines
12h 28mBOS-SAN
£98
31/5Fri
directAlaska Airlines
6h 19mBOS-SAN
£131
21/6Fri
directDelta
6h 11mBOS-SAN
£135
2/9Mon
1 stopJetBlue
10h 15mBOS-SAN
£138
15/6Sat
1 stopSun Country Air
7h 50mBOS-SAN
£142
15/5Wed
directJetBlue
6h 10mBOS-SAN
£150
30/7Tue
directDelta
6h 11mBOS-SAN
£154
10/7Wed
directAlaska Airlines
6h 16mBOS-SAN
£159
28/7Sun
1 stopSun Country Air
13h 28mBOS-SAN
£194

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Last minute flights from Boston to San Diego

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Boston to San Diego that are departing in the next 10 days.
7/5Tue
multi-stopJetBlue
9h 35mBOS-SAN
18/5Sat
directJetBlue
5h 32mSAN-BOS
£322
7/5Tue
multi-stopJetBlue
9h 35mBOS-SAN
18/5Sat
multi-stopJetBlue
8h 03mSAN-BOS
£330
7/5Tue
directDelta
6h 13mBOS-SAN
14/5Tue
directDelta
5h 41mSAN-BOS
£335
7/5Tue
multi-stopJetBlue
9h 35mBOS-SAN
12/5Sun
directJetBlue
5h 35mSAN-BOS
£350
7/5Tue
directJetBlue
6h 13mBOS-SAN
12/5Sun
directJetBlue
5h 32mSAN-BOS
£355
7/5Tue
multi-stopJetBlue
11h 47mBOS-SAN
11/5Sat
multi-stopJetBlue
9h 24mSAN-BOS
£358
7/5Tue
directDelta
6h 13mBOS-SAN
15/5Wed
directDelta
5h 41mSAN-BOS
£360
5/5Sun
directAlaska Airlines
6h 22mBOS-SAN
17/5Fri
directAlaska Airlines
5h 30mSAN-BOS
£399
6/5Mon
directAlaska Airlines
6h 22mBOS-SAN
20/5Mon
directAlaska Airlines
5h 30mSAN-BOS
£407
3/5Fri
multi-stopUnited Airlines
10h 35mBOS-SAN
6/5Mon
multi-stopUnited Airlines
7h 23mSAN-BOS
£598

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Boston - San Diego Flights

Departure:

Boston (BOS)United States

Destination:

San Diego (SAN)United States

Return flight deals:

San Diego - Boston

Cabin classes:

£265

Browse origins:

  • Flights » 
  • Boston

Browse destinations:

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  • San Diego