Trip.com
>
Flights
>
Flights to United States
>
Flights to Massachusetts
>
Flights to Boston
Hotels in Boston
>
Flights from San Diego to Boston

What to know about flights from San Diego to Boston?

The approximate distance between San Diego and Boston is 4,155.79 km. Average flight time from San Diego to Boston is around 5 hours 49 minutes. According to Trip.com data, travel demand hits its peak in July. The cheapest month to book flights is October.

Cheapest one-way
US$107
Alaska Airlines Alaska Airlines SAN-BOS 5h 48m · Nonstop Thu, Sep 10
Book Now
Cheapest round-trip
US$220
Alaska Airlines Alaska Airlines SAN-BOS 5h 47m · Nonstop Sat, Oct 24 - Sat, Oct 31
Book Now
Recommended airlines
Alaska Airlines Alaska Airlines Cheapest · From US$107 Alaska Airlines Alaska Airlines Most booked
When to fly
August
Cheapest
July
Peak season
Route details
4,155.79 km
Flight distance
5h 49m
Average flight time

Explore the cheapest one-way and round-trip flights from San Diego to Boston over the next 90 days, with one-way fares from US$107 and round-trip from US$220. Based on Trip.com's latest 7-day flight data.

      • Cheapest nonstop
        SAN 20:34
        5h 47m
        Nonstop
        BOS 05:21
        San Diego - Boston | Sat, Oct 24 | Alaska Airlines
        BOS 07:51
        6h 18m
        Nonstop
        SAN 11:09
        Boston - San Diego | Sat, Oct 31 | Alaska Airlines
        US$220 US$316
        30% off
        30% off
        US$316 US$220
      • SAN 20:34
        5h 47m
        Nonstop
        BOS 05:21
        San Diego - Boston | Sat, Oct 17 | Alaska Airlines
        BOS 07:51
        6h 18m
        Nonstop
        SAN 11:09
        Boston - San Diego | Sat, Oct 24 | Alaska Airlines
        US$225 US$316
        28% off
        28% off
        US$316 US$225
      • SAN 21:53
        5h 42m
        Nonstop
        BOS 06:35
        San Diego - Boston | Wed, Oct 28 | Delta Air Lines
        BOS 17:10
        6h 18m
        Nonstop
        SAN 20:28
        Boston - San Diego | Sat, Oct 31 | Delta Air Lines
        US$228 US$316
        28% off
        28% off
        US$316 US$228
      • SAN 20:34
        5h 47m
        Nonstop
        BOS 05:21
        San Diego - Boston | Wed, Oct 21 | Alaska Airlines
        BOS 18:14
        6h 21m
        Nonstop
        SAN 21:35
        Boston - San Diego | Wed, Oct 28 | Alaska Airlines
        US$229
        28% off
        US$316 US$229
      • SAN 20:34
        5h 47m
        Nonstop
        BOS 05:21
        San Diego - Boston | Tue, Oct 20 | Alaska Airlines
        BOS 10:35
        6h 15m
        Nonstop
        SAN 13:50
        Boston - San Diego | Tue, Oct 27 |
        US$229
        28% off
        US$316 US$229
      • SAN 13:00
        17h 25m
        1 stop
        BOS 14:00
        San Diego - Boston | Tue, Sep 8 | Normal Airline
        BOS 15:00
        6h
        Nonstop
        SAN 16:00
        Boston - San Diego | Thu, Sep 10 | Normal Airline
        More cheap flights
        More cheap flights
      • Cheapest nonstop
        SAN 20:59
        5h 48m
        Nonstop
        BOS 05:47
        San Diego - Boston | Thu, Sep 10 | Alaska Airlines
        US$107 US$169
        37% off
        37% off
        US$169 US$107
      • SAN 22:04
        5h 36m
        Nonstop
        BOS 06:40
        San Diego - Boston | Sat, Sep 19 | Delta Air Lines
        US$116 US$169
        31% off
        31% off
        US$169 US$116
      • SAN 20:34
        5h 47m
        Nonstop
        BOS 05:21
        San Diego - Boston | Wed, Oct 14 | Alaska Airlines
        US$121 US$169
        28% off
        28% off
        US$169 US$121
      • SAN 20:34
        5h 47m
        Nonstop
        BOS 05:21
        San Diego - Boston | Wed, Oct 21 | Alaska Airlines
        US$123
        27% off
        US$169 US$123
      • SAN 06:15
        8h 20m
        1 stop
        BOS 17:35
        San Diego - Boston | Thu, Sep 10 | American Airlines
        US$118
        30% off
        US$169 US$118
      • SAN 07:32
        8h 58m
        1 stop
        BOS 19:30
        San Diego - Boston | Sat, Sep 19 | American Airlines
        US$119
        30% off
        US$169 US$119
      • SAN 13:00
        17h 25m
        1 stop
        BOS 14:00
        San Diego - Boston | Tue, Sep 8 | Normal Airline
        More cheap flights
        More cheap flights

Flight.News
Flights from San Diego to Boston operate an average of 15 times per day over the past 7 days, with a 28.1% on-time departure rate and a 88.3% on-time arrival rate.

Which airlines are the most popular for San Diego to Boston flights?

The most popular airlines flying from San Diego to Boston are Alaska Airlines, Delta Air Lines, and American Airlines, among 3 carriers on this route. Alaska Airlines offers the lowest fares. Based on Trip.com's flight booking data from the previous 12 months.
Alaska Airlines logo Alaska Airlines
Delta Air Lines logo Delta Air Lines
American Airlines logo American Airlines
Airlines are determined based on actual purchased flight tickets from San Diego to Boston according to previous 12 months data from Trip.com.

Trip.com Price Trends on Flights from San Diego to Boston

Which month has the cheapest one-way flights from San Diego to Boston?

Average monthly one-way flight prices from San Diego to Boston, based on bookings made by Trip.com users over the past 12 months.

Based on Trip.com’s data, the cheapest month for flights from San Diego to Boston is August, with an average price of US$150; while the month with the highest flight price is usually February, with an average price of up to US$313.

US$313
US$232
US$150
US$69
  • US$150
    Aug
  • US$296
    Sep
  • US$298
    Oct
  • US$294
    Nov
  • US$254
    Dec
  • US$213
    Jan
  • US$313
    Feb
  • US$258
    Mar
  • US$298
    Apr
  • US$255
    May
  • US$258
    Jun
  • US$294
    Jul

Frequently Asked Questions

  • What are the cheapest flights from San Diego to Boston (SAN-BOS)?

    Based on Trip.com data, Alaska Airlines offers one-way fares as low as US$107 on Cheapest nonstop routes (e.g. SAN to BOS on Thu, Sep 10), while Alaska Airlines offers Cheapest nonstop round-trips from US$220 departing on Sat, Oct 24 and returning on Sat, Oct 31.
  • At the moment, you can catch a nonstop flight from San Diego to Boston with the following airlines, including: Alaska Airlines Delta Air Lines Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.
  • It takes about 5 hours 49 minutes to fly from San Diego to Boston.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from San Diego to Boston is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • Based on Trip.com data in the past 4 weeks, there is 34 flight per week flying from San Diego to Boston. You can check the weekly schedule for popular airlines on this route below: Delta Air Lines: S/M/T/W/T/F/S -- DL571 (22:19)
  • To find best deals on flights from San Diego to Boston, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Thu, Sep 10, with one-way flights priced at just US$107.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Alaska Airlines.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for Boston travel is around July.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from San Diego to Boston is October, when demand for travel is lower.
  • You can land at any one of the following hubs in Boston: Hartford Barnes Airport (BNH), Boston Logan International Airport (BOS), and Portsmouth International Airport (PSM). Flying from San Diego International Airport to Boston Logan International Airport (SAN-BOS) is by far the most common option on this route.
  • The time difference between Boston and San Diego is 3h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.
  • Based on Trip.com data for flights departing in the next 30 days, the average one-way fare from San Diego to Boston is US$237. Fares vary by travel date, airline and availability.
  • Based on Trip.com data for travel in the next 30 days, the average round-trip fare from San Diego to Boston is US$407. The final price depends on the outbound and return dates, airline and fare conditions.
  • Enter San Diego and Boston, choose your travel dates and passengers, then compare flights by price, duration and baggage. Select a fare, review the change and cancellation rules, enter traveler details and complete payment to receive your confirmation.
  • Jetblue Airwaysare the most popular budget airlines flying from San Diego to Boston. Check baggage, seat and payment fees before comparing the final price.

Trip.com Airline Insights on Flights from San Diego to Boston

Which airline offers the cheapest direct flights from San Diego to Boston?

Data is based on the average price of all nonstop flights from San Diego to Boston on Trip.com over the past 12 months.

Based on Trip.com’s data from the past 12 months, Alaska Airlines provides the lowest-priced direct flights from San Diego to Boston, with fares starting at US$264.

US$200
US$264
US$328
US$392
US$456
Alaska Airlines
US$264
Alaska Airlines
Delta Air Lines
US$266
Delta Air Lines
American Airlines
US$271
American Airlines
Jetblue Airways
US$301
Jetblue Airways
Hawaiian Airlines
US$333
Hawaiian Airlines
United Airlines
US$456
United Airlines

Which airline operates the most flights from San Diego to Boston?

Total flights from San Diego to Boston across all airlines. (Based on Trip.com data from the past month)

Based on Trip.com’s data from the past month, Jetblue Airways operates the most frequent flights from San Diego to Boston, with 20 flights per week.

2
8
14
20
Jetblue Airways
20
Jetblue Airways
American Airlines
14
American Airlines
Alaska Airlines
14
Alaska Airlines
Qatar Airways
8
Qatar Airways
United Airlines
8
United Airlines
Delta Air Lines
8
Delta Air Lines

How many flights fly from San Diego to Boston daily?

The data is based on the flight numbers for each day of the week from San Diego to Boston within the Trip.com database over the past month.

Based on the past month's historical data from Trip.com, the number of flights from San Diego to Boston is the highest on Friday and the lowest on Saturday.

79
65
50
36
Highest
64
Mon
61
Tue
60
Wed
66
Thu
79
Fri
50
Sat
73
Sun

Explore More Popular Flights

Note: Prices shown on this page are the estimated lowest prices found in the last 24 hours and include all taxes and fees.

Book with no extra fees

Prices displayed on this page are all-inclusive (incl. taxes, fuel surcharges, Civil Aviation Development Fund, etc.), and all fees are clearly shown before you pay. Charges for checked baggage, onboard meals, Wi‑Fi, and other optional services are also included where applicable in the flight cards.

Real-time pricing updates

Prices, availability, and travel details on this page have been updated within the last 24 hours, and for many routes are refreshed in real time. The more popular the route, the more accurate and up-to-date the data.

Change & Cancellation Policy

Trip.com shows the change and cancellation rules for each ticket during the booking process, including all related fees and conditions. Please refer to the following scenarios:
Voluntary cancellation/change:
To request a change or cancellation, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and flight segment, and submit your request. Please note that additional charges may apply based on the airline’s fare rules.
Cancellation/change due to a flight schedule change:
If your flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For full details of change and cancellation policies, please refer to the customer support pages.