Flights from San Diego (SAN) to Boston (BOS) on Alaska Airlines

Lowest fares from San Diego to Boston

Oct 2026
From$90*
Seen: 18 minutes ago
Flight Type One Way|Saver
Nov 2026
From$90*
Seen: 2 hours ago
Flight Type One Way|Saver
Dec 2026
From$129*
Seen: 7 hours ago
Flight Type One Way|Saver
cmp-daily-histogram-bars-legend-min-price-aria-label $90
cmp-daily-histogram-bars-legend-max-price-aria-label $376
Displaying fares for October-2026
  • SAN–BOS, Oct 6, 2026: From $376
    06

    Tu

    OCT

  • SAN–BOS, Oct 7, 2026: From $376
    07

    We

  • SAN–BOS, Oct 8, 2026: From $376
    08

    Th

  • SAN–BOS, Oct 9, 2026: From $376
    09

    Fr

  • SAN–BOS, Oct 10, 2026: From $376
    10

    Sa

  • SAN–BOS, Oct 11, 2026: From $296
    11

    Su

  • SAN–BOS, Oct 12, 2026: From $316
    12

    Mo

  • SAN–BOS, Oct 13, 2026: From $316
    13

    Tu

  • SAN–BOS, Oct 14, 2026: From $316
    14

    We

  • SAN–BOS, Oct 15, 2026: From $316
    15

    Th

  • SAN–BOS, Oct 16, 2026: From $316
    16

    Fr

  • SAN–BOS, Oct 17, 2026: From $316
    17

    Sa

  • SAN–BOS, Oct 18, 2026: From $316
    18

    Su

  • SAN–BOS, Oct 19, 2026: From $141
    19

    Mo

  • SAN–BOS, Oct 20, 2026: From $141
    20

    Tu

  • SAN–BOS, Oct 21, 2026: From $109
    21

    We

  • SAN–BOS, Oct 22, 2026: From $219
    22

    Th

  • SAN–BOS, Oct 23, 2026: From $219
    23

    Fr

  • SAN–BOS, Oct 24, 2026: From $141
    24

    Sa

  • SAN–BOS, Oct 25, 2026: From $219
    25

    Su

  • SAN–BOS, Oct 26, 2026: From $129
    26

    Mo

  • SAN–BOS, Oct 27, 2026: From $90
    27

    Tu

  • SAN–BOS, Oct 28, 2026: From $109
    28

    We

  • SAN–BOS, Oct 29, 2026: From $141
    29

    Th

  • SAN–BOS, Oct 30, 2026: From $152
    30

    Fr

  • SAN–BOS, Oct 31, 2026: From $141
    31

    Sa

  • SAN–BOS, Nov 1, 2026: From $187
    01

    Su

    NOV

  • SAN–BOS, Nov 2, 2026: From $141
    02

    Mo

  • SAN–BOS, Nov 3, 2026: From $109
    03

    Tu

  • SAN–BOS, Nov 4, 2026: From $174
    04

    We

  • SAN–BOS, Nov 5, 2026: From $129
    05

    Th

    • Range$90-$376

    *Displayed prices have been available within the past 24 hours and may not be available at the time of booking. Fares listed may be Saver fares, which is our most restrictive fare option and subject to additional restrictions. For roundtrip journeys, the price displayed—available within the past 24 hours—is the aggregate of the lowest available fare each way. Additional baggage charges and fees for optional products and services may apply. Other terms and conditions may apply.

    One-way low-fare flights San Diego to Boston.*

    $
    keyboard_arrow_down
    One-way low-fare flights San Diego to Boston.*
    From
    To
    Fare Type
    Dates
    Price
    San Diego (SAN)Boston (BOS)One-way
    |
    Saver    		Depart: Oct 28, 2026

    From

    $109

    Seen: 18 hours ago

    San Diego (SAN)Boston (BOS)One-way
    |
    Saver    		Depart: Oct 21, 2026

    From

    $109

    Seen: 18 hours ago

    San Diego (SAN)Boston (BOS)One-way
    |
    Saver    		Depart: Feb 2, 2027

    From

    $109

    Seen: 18 hours ago

    San Diego (SAN)Boston (BOS)One-way
    |
    Saver    		Depart: Nov 25, 2026

    From

    $90

    Seen: 2 hours ago

    San Diego (SAN)Boston (BOS)One-way
    |
    Saver    		Depart: Oct 27, 2026

    From

    $90

    Seen: 18 minutes ago

    San Diego (SAN)Boston (BOS)One-way
    |
    Saver    		Depart: Nov 3, 2026

    From

    $109

    Seen: 3 hours ago

    San Diego (SAN)Boston (BOS)One-way
    |
    Saver    		Depart: Nov 9, 2026

    From

    $119

    Seen: 8 hours ago

    San Diego (SAN)Boston (BOS)One-way
    |
    Saver    		Depart: Nov 16, 2026

    From

    $119

    Seen: 4 hours ago

    *Displayed prices have been available within the past 24 hours and may not be available at the time of booking. Fares listed may be Saver fares, which is our most restrictive fare option and subject to additional restrictions. For roundtrip journeys, the price displayed—available within the past 24 hours—is the aggregate of the lowest available fare each way. Additional baggage charges and fees for optional products and services may apply. Other terms and conditions may apply.

    Frequently Asked Questions on flights from San Diego (SAN) to Boston (BOS)

    When is the best time to book a flight from San Diego to Boston?

    Want to find the lowest fares by day and time flying from San Diego to Boston on Alaska Airlines or Hawaiian Airlines? Check out our flight search widget.

    Can I earn points on my flight to Boston?

    Yes, with Atmosâ„¢ Rewards you can earn points on flights to 1000+ destinations worldwide through the growing network of Alaska and Hawaiian Airlines. Not an Atmosâ„¢ Rewards member yet? Learn more and join today.

    Can I rent a car when I arrive at Logan International Airport?

    Yes, you can rent a car at Logan International Airport. Check availability and book now

    Where can I find the status of my flight to Boston?

    You can check the status of your upcoming Alaska Airlines flight on our flight schedule page.

    Where can I find answers to questions about flying with Alaska Airlines?

    Visit the Alaska Airlines Help Center to quickly browse our help pages by category to find the information you need.

    Can I change or cancel my Alaska Airlines flight to Boston?

    Yes, you can review, modify, or cancel a reservation from our Manage Your Reservation tool. You can learn more about our policy for changing or cancelling a reservation here. 

    Explore Alaska Airlines's Flights to Top-Pick Destinations