SAN - BOS

C$ 179 Find Cheap Flights from San Diego to Boston – Compare and Save

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Everything you should know

Cheapest round-trip
C$ 328
Typical prices: C$ 422-C$ 712
Southwest
Sat 27/10Sat 3/11
SAN - BOS • Direct
Cheapest one-way flights
C$ 179
Typical prices: C$ 237-C$ 510
Southwest
Sat 10/11
SAN - BOS • Direct
Direct flights
You can fly direct with JetBlue, Alaska Airlines, and others. Average duration is 5h 43m.
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 16 weeks in advance save around 44% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 17% price drop
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Cheapest • Avg C$ 478 (round-trip)
Shortest trip • 8h 00m (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 round-trip flight deals from San Diego to Boston

Tue, 27 Oct - Tue, 3 Nov
Southwest Logo
9:20 a.m. - 5:50 p.m.SAN  San Diego-BOS Boston Logan Intl
5h 30mdirect
Southwest Logo
8:25 a.m. - 11:45 a.m.BOS  Boston Logan Intl-SAN San Diego
6h 20mdirect
C$ 328Southwest
Tue, 20 Oct - Sat, 24 Oct
Alaska Airlines Logo
8:34 p.m. - 5:21 a.m.SAN  San Diego-BOS Boston Logan Intl
5h 47mdirect
Alaska Airlines Logo
7:51 a.m. - 11:09 a.m.BOS  Boston Logan Intl-SAN San Diego
6h 18mdirect
C$ 329Alaska Airlines
Wed, 21 Oct - Fri, 23 Oct
Southwest Logo
9:50 p.m. - 8:10 a.m.SAN  San Diego-BOS Boston Logan Intl
7h 20m1 stop Baltimore/Washington
Southwest Logo
5:15 a.m. - 10:30 a.m.BOS  Boston Logan Intl-SAN San Diego
8h 15m1 stop Nashville Intl
C$ 332Southwest
Mon, 26 Oct - Thu, 29 Oct
Southwest Logo
10:40 p.m. - 9:35 a.m.SAN  San Diego-BOS Boston Logan Intl
7h 55m1 stop Nashville Intl
Southwest Logo
10:50 a.m. - 2:05 p.m.BOS  Boston Logan Intl-SAN San Diego
6h 15mdirect
C$ 335Southwest
Fri, 23 Oct - Sat, 24 Oct
Southwest Logo
12:45 p.m. - 1:15 a.m.SAN  San Diego-BOS Boston Logan Intl
9h 30m2 stops Santa Barbara Denver Intl
Southwest Logo
9:40 a.m. - 5:25 p.m.BOS  Boston Logan Intl-SAN San Diego
10h 45m1 stop Chicago Midway
C$ 339Southwest
Tue, 27 Oct - Tue, 3 Nov
Southwest Logo
6:15 a.m. - 4:30 p.m.SAN  San Diego-BOS Boston Logan Intl
7h 15m1 stop Chicago Midway
Southwest Logo
8:25 a.m. - 11:45 a.m.BOS  Boston Logan Intl-SAN San Diego
6h 20mdirect
C$ 342Southwest
Fri, 6 Nov - Wed, 11 Nov
Delta Logo
9:53 p.m. - 6:35 a.m.SAN  San Diego-BOS Boston Logan Intl
5h 42mdirect
Delta Logo
5:30 a.m. - 1:08 p.m.BOS  Boston Logan Intl-SAN San Diego
10h 38m1 stop Atlanta Hartsfield-Jackson
C$ 343Delta
Thu, 29 Oct - Thu, 5 Nov
Southwest Logo
2:10 p.m. - 1:15 a.m.SAN  San Diego-BOS Boston Logan Intl
8h 05m1 stop Denver Intl
Southwest Logo
4:20 p.m. - 11:50 p.m.BOS  Boston Logan Intl-SAN San Diego
10h 30m1 stop Chicago Midway
C$ 349Southwest
Tue, 27 Oct - Tue, 3 Nov
Southwest Logo
9:20 a.m. - 5:50 p.m.SAN  San Diego-BOS Boston Logan Intl
5h 30mdirect
Southwest Logo
5:10 a.m. - 11:50 a.m.BOS  Boston Logan Intl-SAN San Diego
9h 40m2 stops Nashville Intl Dallas Love Field
C$ 350Southwest
Tue, 16 Feb - Mon, 22 Feb
Delta Logo
10:00 p.m. - 6:38 a.m.SAN  San Diego-BOS Boston Logan Intl
5h 38mdirect
Delta Logo
5:15 p.m. - 8:48 p.m.BOS  Boston Logan Intl-SAN San Diego
6h 33mdirect
C$ 351Delta
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 from San Diego to Boston with more confidence.

How much is a round-trip flight from San Diego to Boston?

Round-trip flights from San Diego to Boston start at C$ 328. Prices are below average for this route right now, with typical round-trip fares ranging from C$ 422 to C$ 712. The lowest price found in the past 5 days was C$ 328 on Southwest.

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

Saturday is the cheapest day of the week to fly from San Diego to Boston and is 10% cheaper than the average day. Sunday is the most expensive day with flight prices 20% higher than average. Based on deals found by KAYAK users in the last 12 months.

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 C$ 454 round-trip.
  • December (C$ 660) and April (C$ 586) are the most expensive months.
  • The price difference between flying in the cheapest and most expensive months is 45% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are prices from San Diego to Boston the cheapest?

Flights from San Diego to Boston are cheapest 16 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

C$ 179
Best time to beat the crowds but there is an average 6% increase in price.
Most popular time to fly (7% more expensive on average)
Flights 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 round-trip price

Your San Diego to Boston flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines, and booking questions.

  • 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.

  • 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 are available on the route 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

  • 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).

  • 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 carry-on bag and a checked bag in Economy Class
    • Alaska Airlines: a carry-on bag and a checked bag in Economy Class
    • Delta: a carry-on bag and a checked bag in Economy Class

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

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

    Three cabin classes are available on flights from San Diego to Boston:

    • Economy Class
    • Premium Economy Class
    • First Class

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

    On this route, layover flights are cheaper than direct options on average. Layover fares average C$ 478 round-trip via Charlotte Douglas (CLT), compared to C$ 542 for direct.

  • 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 C$ 49–C$ 139 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.

  • 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) – 20% of one-stop connections
    • Phoenix Sky Harbor Intl (PHX) – 13% of one-stop connections
    • Philadelphia (PHL) – 12% of one-stop connections
    • Los Angeles (LAX) – 10% of one-stop connections

    Chicago O'Hare Intl (ORD) handles the largest share of one-stop connections on this route.

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

    On the San Diego to Boston route, being flexible with your departure day can save you up to 26%. Saturday is the cheapest day at C$ 495 round-trip on average, while Sunday is the most expensive at C$ 660 – a C$ 165 difference. Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

  • 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 3 months, with delays averaging 2 hours 46 minutes.

  • 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. Afternoon departures account for 20%, Evening flights for 20%, and Night flights for 20%.

  • Which popular places can I visit in Boston?

    Some of the most popular sights in Boston are Fenway Park, TD Garden, and Back Bay. These are among the most viewed places in Boston on KAYAK.

  • 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 8:03 am and lands at 1:46 pm
    • Latest: departs at 10:30 pm and lands at 4:13 am.

    The flight takes about 5h 43m.

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

    Last-minute fares on this route – booked within 2 weeks of departure – run 52% above the route average of C$ 546. Book 16 weeks before departure for the lowest fares.

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

    A direct flight from San Diego to Boston takes 5h 43m, covering 6,684 km.

  • 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 a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

  • Have flight prices from San Diego to Boston changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about C$ 328 to C$ 3,080. That means the highest observed fare was about 9x higher than the lowest one.

  • 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 C$ 187, which is 46% below the typical average for this route.

  • How does Delta's on-time performance compare to other airlines on San Diego to Boston flights?

    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.

  • How do delay rates compare for morning and evening flights from San Diego to Boston?

    Night flights have the fewest delays on this route. Delays tend to pile up throughout the day as one late flight pushes the next, so earlier departures are usually more reliable.

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

    Flying via Chicago Midway (MDW) gives the shortest average 1-stop total travel time at 8h 00m, compared with 8h 07m via Los Angeles (LAX) and 8h 09m via Chicago O'Hare Intl (ORD).

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

    Boston Logan Intl Airport (BOS) hosts 5 major car rental companies, with daily rates starting from around C$ 32 for economy cars. Top options include:
    • Dollar
    • Hertz
    • Budget
    • Thrifty
    • Sixt

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

    Round-trip flights from San Diego to Boston range from C$ 422 to C$ 712, with an average of C$ 546 over the past 12 months. Anything below C$ 422 counts as a good deal.

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

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

    • • JetBlue
    • • Alaska Airlines

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

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 Saturday departure instead of Sunday. On this route, Saturday flights average C$ 495 – about C$ 165 less than Sunday (25% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 16 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 C$ 454 round-trip in that month – typically C$ 206 less than the most expensive month, which is December (based on the last 12 months).
  • If arriving on time is high on your priority list, Delta is the strongest pick on this route. 89% of Delta flights from San Diego to Boston arrived on time in the past 3 months, slightly above the route's average on-time arrival rate of 81%. When flights on this route do arrive late, the average delay is 2 hours46 minutes, so choosing a carrier with strong on-time performance can make a difference on tight schedules.
  • If you have the time, taking a 1-stop flight through Charlotte Douglas Airport (CLT) can be cheaper than flying direct. The cheapest layover option averages C$ 478 round-trip on this route – about C$ 64 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.
    - Embassy Suites by Hilton Boston at Logan Airport
    - 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 nonstop 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 nonstop flights

More options for your flight from San Diego to Boston

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