SAN - BOS

£89 Find Cheap Flights from San Diego to Boston – Compare and Save

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Everything you should know

Cheapest return flight
£137
Typical prices: £234-£392
JetBlue
Mon 8/1Thu 18/1
SAN - BOS • 1 stop
Cheapest direct flights
£138
Typical prices: £232-£396
Southwest
Tue 13/11Fri 16/11
SAN - BOS • Direct
Direct flights
You can fly direct with JetBlue, Alaska Airlines, and others. Average duration is 5h 34m.
Direct flights
+1
Direct flights
+1
Avoid delays
Most punctual • 89% on-time
Best time • Fewest delays
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 14 weeks in advance save around 44% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 22% price drop
Most popular
Good to know
+1
Good to know
+1
Top stopover airports
Cheapest • Avg £258 (return)
Shortest trip • 7h 42m (one-way)
Insights
Insights
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We hope you enjoy your trip to Boston!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from San Diego to Boston (SAN-BOS)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from San Diego to Boston

Fri, 8 Jan - Mon, 18 Jan
JetBlue Logo
21:45 - 08:03SAN  San Diego-BOS Boston Logan Intl
7h 18m1 stop New York John F Kennedy Intl
JetBlue Logo
06:10 - 09:49BOS  Boston Logan Intl-SAN San Diego
6h 39mdirect
£137JetBlue
Fri, 13 Nov - Mon, 16 Nov
Southwest Logo
09:25 - 17:50SAN  San Diego-BOS Boston Logan Intl
5h 25mdirect
Southwest Logo
08:25 - 11:45BOS  Boston Logan Intl-SAN San Diego
6h 20mdirect
£138Southwest
Sun, 15 Nov - Wed, 18 Nov
Southwest Logo
22:35 - 09:45SAN  San Diego-BOS Boston Logan Intl
8h 10m1 stop Nashville Intl
Southwest Logo
15:30 - 21:00BOS  Boston Logan Intl-SAN San Diego
8h 30m1 stop Baltimore/Washington
£140Southwest
Sat, 14 Nov - Wed, 18 Nov
Southwest Logo
21:55 - 08:05SAN  San Diego-BOS Boston Logan Intl
7h 10m1 stop Baltimore/Washington
Southwest Logo
17:55 - 23:25BOS  Boston Logan Intl-SAN San Diego
8h 30m1 stop Chicago Midway
£143Southwest
Tue, 10 Nov - Tue, 17 Nov
Southwest Logo
10:55 - 23:45SAN  San Diego-BOS Boston Logan Intl
9h 50m2 stops Phoenix Sky Harbor Intl Denver Intl
Southwest Logo
05:10 - 10:35BOS  Boston Logan Intl-SAN San Diego
8h 25m1 stop Nashville Intl
£144Southwest
Fri, 13 Nov - Mon, 16 Nov
Southwest Logo
13:25 - 01:15SAN  San Diego-BOS Boston Logan Intl
8h 50m1 stop Denver Intl
Southwest Logo
08:25 - 11:45BOS  Boston Logan Intl-SAN San Diego
6h 20mdirect
£145Southwest
Sat, 14 Nov - Wed, 18 Nov
Southwest Logo
21:55 - 08:05SAN  San Diego-BOS Boston Logan Intl
7h 10m1 stop Baltimore/Washington
Southwest Logo
15:30 - 23:10BOS  Boston Logan Intl-SAN San Diego
10h 40m2 stops Baltimore/Washington Nashville Intl
£147Southwest
Sat, 21 Nov - Wed, 9 Dec
Delta Logo
22:17 - 06:40SAN  San Diego-BOS Boston Logan Intl
5h 23mdirect
Delta Logo
17:10 - 20:43BOS  Boston Logan Intl-SAN San Diego
6h 33mdirect
£148Delta
Thu, 26 Nov - Thu, 3 Dec
JetBlue Logo
11:39 - 00:22SAN  San Diego-BOS Boston Logan Intl
9h 43m1 stop Fort Lauderdale
JetBlue Logo
14:45 - 20:19BOS  Boston Logan Intl-SAN San Diego
8h 34m1 stop New York John F Kennedy Intl
£149JetBlue
Fri, 13 Nov - Fri, 4 Dec
Alaska Airlines Logo
21:07 - 05:46SAN  San Diego-BOS Boston Logan Intl
5h 39mdirect
Alaska Airlines Logo
18:13 - 21:55BOS  Boston Logan Intl-SAN San Diego
6h 42mdirect
£151Alaska Airlines
Booking Insights

Price, demand, and travel trends for San Diego to Boston flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights with more confidence.

How much is a return flight from San Diego to Boston?

Return flights from San Diego to Boston typically range from £234 to £392. The lowest price found in the past 5 days was £137 on JetBlue.

What's the cheapest day of the week to fly from San Diego to Boston?

Based on deals KAYAK users found in the last 12 months, Wednesday is the cheapest day of the week to fly from San Diego to Boston. It's 6% cheaper than the average day, while Sunday is the most expensive, with prices 17% higher.

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

•January is the cheapest month to fly from San Diego to Boston at £232 return.
•December (£355) and April (£318) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 52% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from San Diego to Boston the cheapest?

Flights from San Diego to Boston are cheapest 14 weeks before departure. Booking in this window typically costs about 44% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Key details for San Diego to Boston flights

Low season

February

Cheapest flight

£89
Beat the crowds with an average 41% drop in traveller numbers.
The most popular month to fly with an average 40% increase in traveller numbers.
One-way flight from San Diego to Boston

When to book flights from San Diego to Boston

Are your dates flexible? Find out the best times to travel from San Diego to Boston based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

Your San Diego to Boston flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines, and booking tips.

  • What are the earliest and latest flights from San Diego to Boston?

    These are the earliest and latest flight times available from San Diego to Boston:

    • Earliest: departs at 08:03 and lands at 13:37
    • Latest: departs at 22:30 and lands at 04:04.

    The flight takes about 5h 34m.

  • Which cabin classes can I book on flights from San Diego to Boston?

    Only Economy class is available on flights from San Diego to Boston.

  • How long is a flight from San Diego to Boston?

    A direct flight from San Diego to Boston takes 5h 34m, covering 2,581 miles.

  • Do I need a passport to fly from San Diego to Boston?

    No, a passport is not required for this domestic route, but you will need another form of identification, such as a driving licence.

  • How much should I expect to pay for a San Diego to Boston flight?

    Return flights from San Diego to Boston range from £234 to £392, with an average of £299 over the past 12 months. Anything below £234 counts as a good deal.

  • How expensive are last-minute San Diego to Boston flights?

    Last-minute fares on this route (booked within two weeks of departure) run 50% above the £299 route average. Book 14 weeks before departure for the lowest fares.

  • How much can I save by having a stopover when flying from San Diego to Boston?

    On this route, stopover flights are cheaper than direct options on average. Stopover fares average £258 return via Charlotte Douglas (CLT), compared with £299 for direct.

  • How does on-time performance compare across airlines flying from San Diego to Boston?

    Delta is slightly above the route average for timely arrivals, while Alaska Airlines has a lower on-time arrival rate. On-time arrival rates on San Diego to Boston flights are:

    • Delta: 89% on time
    • Alaska Airlines: 83% on time
    • JetBlue: 81% on time

    On average, flights on this route are punctual 81% of the time.

  • What is the standard checked bag allowance on flights from San Diego to Boston?

    There is no standard. Checked bag policies vary by airline on this route. Most carriers charge £26–£75 for the first checked bag in Economy. Premium fares and elite status bookings typically include a free checked bag.

  • Which aircraft model is used most often on flights from San Diego to Boston?

    The Airbus A318/A319/A320/A321 family is used most often on this route, operated mainly by JetBlue. Other aircraft seen on the route include Airbus A321neo variants.

  • How are flight departures from San Diego to Boston spread across the day?

    Morning is the busiest departure period on San Diego to Boston flights, with 40% leaving in that window. Night departures account for 40%, Evening flights for 20%, and Afternoon flights for 0%.

  • Which airlines offer Wi-Fi on San Diego to Boston flights?

    Three airlines offer in-flight Wi-Fi on San Diego to Boston flights:

    • JetBlue
    • Alaska Airlines
    • Delta

    Pricing varies by airline and fare class. Some plans are included with the ticket or loyalty programme, while others are paid add-ons priced by flight length.

  • How are flight prices from San Diego to Boston looking right now?

    One-way fares from San Diego to Boston are currently lower than usual. Average one-way flight prices are about £100, which is 48% below the typical average for this route.

  • Which car hire options are available at Boston Logan Intl Airport (BOS)?

    Boston Logan Intl Airport (BOS) hosts 5 major car hire companies, with daily rates starting from around £58 for economy cars. Top options include:

    • Dollar
    • Hertz
    • Budget
    • Thrifty
    • Sixt

  • Which airports can I use when flying from San Diego to Boston?

    Flights from San Diego to Boston usually depart from San Diego (SAN) and arrive at Boston Logan Intl (BOS).

  • What time of day has the fewest delays on flights from San Diego to Boston?

    Night flights have the fewest delays on this route, while afternoon departures tend to have the most.

  • At what point is a flight considered delayed on the route from San Diego to Boston?

    A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the San Diego to Boston route, 19% of flights were delayed in the past three months, with delays averaging 2h 48m.

  • Which airports do connecting flights from San Diego to Boston pass through?

    One-stop flights from San Diego to Boston most commonly connect through:

    • Chicago O'Hare Intl (ORD) – 39% of one-stop connections
    • Phoenix Sky Harbor Intl (PHX) – 12% of one-stop connections
    • Baltimore/Washington (BWI) – 8% of one-stop connections
    • Los Angeles (LAX) – 8% of one-stop connections

  • Can I save money by using flexible dates for flights from San Diego to Boston?

    Yes. Flexible dates can save you up to 20% on flights from San Diego to Boston. Wednesday is the cheapest departure day at £284 return on average, while Sunday is the most expensive at £352, a difference of £68.

    KAYAK's flexible dates feature shows options up to three days before and after your selected dates, making it easier to compare nearby fares.

  • Which airlines fly from San Diego to Boston?

    4 airlines operate flights between San Diego and Boston. The airlines offering direct flights on this route include:

    • JetBlue
    • Alaska Airlines
    • Delta
    • Southwest

  • How much time can I save by choosing a different stopover airport from San Diego to Boston?

    Flying via Chicago Midway (MDW) gives the shortest average 1-stop total travel time of 7h 42m, compared to 8h 05m via Philadelphia (PHL) and 8h 08m via Los Angeles (LAX).

  • What is the time difference between San Diego and Boston?

    Boston is 3 hours ahead of San Diego (Eastern Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Boston?

    Some of the most popular sights in Boston are Boston Common, Copley Square, and John B. Hynes Veterans Memorial Convention Center. These are among the most viewed places in Boston on KAYAK.

  • Which airlines offer extra legroom and free seat selection on San Diego to Boston flights?

    Among airlines operating San Diego to Boston flights:

    • JetBlue: offers extra legroom; offers free seat selection
    • Alaska Airlines: offers extra legroom; offers free seat selection
    • Delta: offers extra legroom; offers free seat selection
    • Southwest: offers free seat selection
    • American Airlines: offers free seat selection

    Extra legroom and free seat selection availability depends on fare class and route.

  • Which airlines include bags at no extra cost on San Diego to Boston flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • JetBlue: a cabin bag and a checked bag in Economy class
    • Alaska Airlines: a cabin bag and a checked bag in Economy class
    • Delta: a cabin bag and a checked bag in Economy class

    Baggage allowance can vary by ticket type, cabin class, route, and airline, so always check the fare details before booking.

  • Which terminal should you use when flying out of San Diego Airport?

    If you opt for JetBlue, Spirit Airlines, or Southwest, you'll depart from Terminal 1. If you'd rather fly with American Airlines, Delta Air Lines, United Airlines, or Alaska Airlines, you'll depart from Terminal 2.

  • Are there nonstop flights on this route?

    Yes, you'll find multiple nonstop flights with JetBlue. If you don't mind making one-stop, all the airlines listed above make stops in cities such as Chicago, Newark, Seattle, New York, and Denver, among others.

  • Which airline should you opt for?

    While it's a matter of preference, JetBlue will get you there faster on its nonstop flights. That said, if you'd like to access an airline lounge, United Airlines has a United Club at both SAN and BOS that you can access with your plane ticket.

  • Can you rent a car from Boston Airport?

    Yes. Just exit the airport terminals on the lower level to find the free blue and white shuttle that'll take you to the Rental Car Facility. Car rental agencies available here include Avis, Alamo, Budget, Hertz, National, Payless, and Thrifty, among others. Make your reservation through KAYAK for a seamless process.

  • What other cities does Boston Airport serve?

    Apart from Boston, BOS Airport also serves other cities in Massachusetts, including Chelsea, Winthrop, Revere, Everett, Malden, Somerville, and Cambridge.

  • What special amenities will you find at Boston Airport?

    There are water refill stations in all terminals, cots for stranded passengers, a chapel in Terminal C, and art exhibits throughout the airport. Most seating areas have mobile charging stations, and pet relief areas are available in all terminals. There are shoe shine services in all terminals, a Classique Salon in Terminal C, and rocking chairs throughout the airport.

  • Is BOS accessible for disabled people?

    Yes, all areas are accessible, including terminals, garages, and elevators. Service animals are allowed, and there’s an Aira program for vision assistance.

Your guide to booking San Diego to Boston flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Wednesday departure and avoid flying on Sunday. On this route, Wednesday flights average £284, about £68 less than Sunday fares (19% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 14 weeks before you fly. On this route, that window historically saves about 44% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your San Diego to Boston trip for January. Fares historically average £232 return in that month – typically £122 less than the most expensive month, which is December (based on the last 12 months).
  • For the best chance of arriving on time, fly with Delta. Over the past three months, 89% of Delta flights from San Diego to Boston arrived on time, slightly above the route average of 81%. When flights on this route arrive late, they're delayed by an average of 2h 48m, so choosing an airline with strong on-time performance can make a difference if you're on a tight schedule.
  • If you have the time, taking a 1-stop flight through Charlotte Douglas Airport (CLT) can be cheaper than flying direct. The cheapest stopover option averages £258 return on this route – about £41 less than direct flights (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Boston Logan Intl Airport.

    • Hyatt Regency Boston Harbor
    • Hilton Garden Inn Boston Logan Airport
    • Hilton Boston Logan Airport
  • San Diego International Airport (SAN) is conveniently situated about 3 miles from downtown San Diego. If you're looking to get there through public means, the MTS City bus number 992 makes regular stops at San Diego Airport Terminals 1 and 2.
  • Parking at the SAN Airport is available. Terminal 1 charges about $32 per day. Terminal 2 (McCain Road) charges a Drive-Up rate of about $32 per day, while Terminal 2 Parking Plaza charges the same with a reservation option of about $21 per day.
  • Boston Logan International Airport (BOS) is situated approximately 5 miles away from downtown Boston. To get there, take the Silver Line, SL1 bus, that departs from all terminals. It'll take you to South Station in central Boston. It's quite fast at about 20min depending on traffic and relatively cheap at about $2.
  • Boston Airport is a hub for Delta Air Lines and a focus city for JetBlue, while San Diego Airport is not an airline hub but a focus city for Southwest Airlines and Alaska Airlines.
  • If you're traveling with kids, BOS Airport has changing tables in all washrooms, nursing rooms in all terminals, and children's play areas, Kidport, in terminals A, B, and C.
  • Amenities at SAN Airport include bicycle lockers if you cycle to the airport. There are shoeshine services, courtesy phones, snack and drink vending machines and lactation rooms in both terminals. There are Smart Carte luggage carts in various areas, Traveler's Aid, a meditation room in Terminal 2, Be Relax spas in Terminal 2, art exhibits throughout the airport, and free Wi-Fi for two hours.

Prefer to fly direct from San Diego to Boston?

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

Direct departures

San Diego to Boston Logan Intl

Monday

Alaska Airlines,Delta,JetBlue, +1 more

Alaska Airlines,Delta, +2 more

Tuesday

Alaska Airlines,Delta,JetBlue, +1 more

Alaska Airlines,Delta, +2 more

Wednesday

Alaska Airlines,Delta,JetBlue, +1 more

Alaska Airlines,Delta, +2 more

Thursday

Alaska Airlines,Delta,JetBlue, +1 more

Alaska Airlines,Delta, +2 more

Friday

Alaska Airlines,Delta,JetBlue, +1 more

Alaska Airlines,Delta, +2 more

Saturday

Alaska Airlines,Delta,JetBlue, +1 more

Alaska Airlines,Delta, +2 more

Sunday

Alaska Airlines,Delta,JetBlue, +1 more

Alaska Airlines,Delta, +2 more

See more direct flights

Direct returns

Boston Logan Intl to San Diego

Monday

Alaska Airlines,Delta,JetBlue, +1 more

Alaska Airlines,Delta, +2 more

Tuesday

Alaska Airlines,Delta,JetBlue, +1 more

Alaska Airlines,Delta, +2 more

Wednesday

Alaska Airlines,Delta,JetBlue, +1 more

Alaska Airlines,Delta, +2 more

Thursday

Alaska Airlines,Delta,JetBlue, +1 more

Alaska Airlines,Delta, +2 more

Friday

Alaska Airlines,Delta,JetBlue, +1 more

Alaska Airlines,Delta, +2 more

Saturday

Alaska Airlines,Delta,JetBlue, +1 more

Alaska Airlines,Delta, +2 more

Sunday

Alaska Airlines,Delta,JetBlue, +1 more

Alaska Airlines,Delta, +2 more

See more direct flights

More options for your flight from San Diego to Boston

Complete your trip to Boston with a hotel stay or car hire