Southwest® flights from San Diego to Boston from $90

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Low fares from San Diego to Boston

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San Diego (SAN)to

Boston (BOS)
Depart: 12/09/2026

One-way

Basic

From
$90
Seen: 23 hrs ago

San Diego (SAN)to

Boston (BOS)
Depart: 12/08/2026

One-way

Basic

From
$90
Seen: 12 hrs ago

San Diego (SAN)to

Boston (BOS)
Depart: 12/15/2026

One-way

Basic

From
$90
Seen: 15 hrs ago

San Diego (SAN)to

Boston (BOS)
Depart: 12/10/2026

One-way

Basic

From
$105
Seen: 15 hrs ago

San Diego (SAN)to

Boston (BOS)
Depart: 12/24/2026

One-way

Basic

From
$105
Seen: 1 hour ago

San Diego (SAN)to

Boston (BOS)
Depart: 12/28/2026

One-way

Basic

From
$105
Seen: 4 hrs ago

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Explore flights from San Diego to Boston

Nov 2026
From$262*
Seen: 11 hrs ago
One Way/Basic
Dec 2026
From$90*
Seen: 23 hrs ago
One Way/Basic
Jan 2027
From$155*
Seen: 4 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $90
cmp-daily-histogram-bars-legend-max-price-aria-label $534
Displaying fares for November-2026
  • SAN–BOS: cmp-view-offers-disclaimer. Find Offers
    11

    Wed

    NOV

  • SAN–BOS, 11/12/2026: From $404
    12

    Thu

  • SAN–BOS, 11/13/2026: From $404
    13

    Fri

  • SAN–BOS, 11/14/2026: From $324
    14

    Sat

  • SAN–BOS, 11/15/2026: From $334
    15

    Sun

  • SAN–BOS, 11/16/2026: From $324
    16

    Mon

  • SAN–BOS, 11/17/2026: From $404
    17

    Tue

  • SAN–BOS, 11/18/2026: From $264
    18

    Wed

  • SAN–BOS, 11/19/2026: From $321
    19

    Thu

  • SAN–BOS, 11/20/2026: From $331
    20

    Fri

  • SAN–BOS, 11/21/2026: From $321
    21

    Sat

  • SAN–BOS, 11/22/2026: From $321
    22

    Sun

  • SAN–BOS: cmp-view-offers-disclaimer. Find Offers
    23

    Mon

  • SAN–BOS: cmp-view-offers-disclaimer. Find Offers
    24

    Tue

  • SAN–BOS: cmp-view-offers-disclaimer. Find Offers
    25

    Wed

  • SAN–BOS: cmp-view-offers-disclaimer. Find Offers
    26

    Thu

  • SAN–BOS: cmp-view-offers-disclaimer. Find Offers
    27

    Fri

  • SAN–BOS, 11/28/2026: From $534
    28

    Sat

  • SAN–BOS, 11/29/2026: From $505
    29

    Sun

  • SAN–BOS, 11/30/2026: From $262
    30

    Mon

  • SAN–BOS, 12/01/2026: From $174
    01

    Tue

    DEC

  • SAN–BOS, 12/02/2026: From $155
    02

    Wed

  • SAN–BOS, 12/03/2026: From $159
    03

    Thu

  • SAN–BOS, 12/04/2026: From $115
    04

    Fri

  • SAN–BOS, 12/05/2026: From $145
    05

    Sat

  • SAN–BOS: cmp-view-offers-disclaimer. Find Offers
    06

    Sun

  • SAN–BOS, 12/07/2026: From $169
    07

    Mon

  • SAN–BOS, 12/08/2026: From $90
    08

    Tue

  • SAN–BOS, 12/09/2026: From $90
    09

    Wed

  • SAN–BOS, 12/10/2026: From $105
    10

    Thu

    • Range$90-$534

    *Fares displayed have been collected within the last 24 hours and may no longer be available at time of booking. Additional fees and charges for optional products and services may apply. Modifying this information may result in a different fare. To find the most updated fare, please visit Southwest.com. Fares listed are Basic, which are subject to additional terms and conditions.

    Flight Details

    Departing from:
    San Diego International Airport
    Arriving at:
    Logan International Airport
    Distance:
    2588 miles

    Questions we hear the most

    There are 138 weekly flights from San Diego to Boston on Southwest Airlines.
    To find the lowest fares by day and time to fly San Diego to Boston with Southwest, check out our Low Fare Calendar.
    You can rent a car at Logan International Airport book yours with your flight.
    Yes! Flights from San Diego to Boston—or from here or there to anywhere—can be changed with no change fees. Fare difference may apply.
    Check the status of your upcoming Southwest flight.
    Check out the Southwest Airlines® Help Center for answers about everything Southwest.

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