Southwest® flights from San Jose, CA to Boston from $143

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Low fares from San Jose, CA to Boston

$

San Jose, CA (SJC)to

Boston (BOS)
Depart: 09/17/2026

One-way

Basic

From
$143
Seen: 23 hrs ago

San Jose, CA (SJC)to

Boston (BOS)
Depart: 10/07/2026

One-way

Basic

From
$143
Seen: 22 hrs ago

San Jose, CA (SJC)to

Boston (BOS)
Depart: 09/01/2026

One-way

Basic

From
$143
Seen: 18 hrs ago

San Jose, CA (SJC)to

Boston (BOS)
Depart: 09/21/2026

One-way

Basic

From
$143
Seen: 20 hrs ago

San Jose, CA (SJC)to

Boston (BOS)
Depart: 09/28/2026

One-way

Basic

From
$143
Seen: 12 hrs ago

San Jose, CA (SJC)to

Boston (BOS)
Depart: 09/15/2026

One-way

Basic

From
$143
Seen: 22 hrs ago

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Explore flights from San Jose, CA to Boston

Jul 2026
From$237*
Seen: 11 hrs ago
One Way/Basic
Aug 2026
From$143*
Seen: 18 hrs ago
One Way/Basic
Sep 2026
From$143*
Seen: 23 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $143
cmp-daily-histogram-bars-legend-max-price-aria-label $287
Displaying fares for July-2026
  • SJC–BOS, 07/31/2026: From $237
    31

    Fri

    JUL

  • SJC–BOS, 08/01/2026: From $237
    01

    Sat

  • SJC–BOS, 08/02/2026: From $247
    02

    Sun

  • SJC–BOS, 08/03/2026: From $287
    03

    Mon

  • SJC–BOS: cmp-view-offers-disclaimer. Find Offers
    04

    Tue

  • SJC–BOS, 08/05/2026: From $237
    05

    Wed

  • SJC–BOS, 08/06/2026: From $237
    06

    Thu

  • SJC–BOS, 08/07/2026: From $190
    07

    Fri

  • SJC–BOS: cmp-view-offers-disclaimer. Find Offers
    08

    Sat

  • SJC–BOS, 08/09/2026: From $168
    09

    Sun

  • SJC–BOS: cmp-view-offers-disclaimer. Find Offers
    10

    Mon

  • SJC–BOS, 08/11/2026: From $158
    11

    Tue

  • SJC–BOS, 08/12/2026: From $158
    12

    Wed

  • SJC–BOS, 08/13/2026: From $158
    13

    Thu

  • SJC–BOS, 08/14/2026: From $158
    14

    Fri

  • SJC–BOS, 08/15/2026: From $208
    15

    Sat

  • SJC–BOS: cmp-view-offers-disclaimer. Find Offers
    16

    Sun

  • SJC–BOS: cmp-view-offers-disclaimer. Find Offers
    17

    Mon

  • SJC–BOS, 08/18/2026: From $158
    18

    Tue

  • SJC–BOS: cmp-view-offers-disclaimer. Find Offers
    19

    Wed

  • SJC–BOS: cmp-view-offers-disclaimer. Find Offers
    20

    Thu

  • SJC–BOS, 08/21/2026: From $153
    21

    Fri

  • SJC–BOS, 08/22/2026: From $178
    22

    Sat

  • SJC–BOS, 08/23/2026: From $190
    23

    Sun

  • SJC–BOS, 08/24/2026: From $143
    24

    Mon

  • SJC–BOS, 08/25/2026: From $152
    25

    Tue

  • SJC–BOS, 08/26/2026: From $143
    26

    Wed

  • SJC–BOS, 08/27/2026: From $278
    27

    Thu

  • SJC–BOS, 08/28/2026: From $153
    28

    Fri

  • SJC–BOS, 08/29/2026: From $278
    29

    Sat

  • SJC–BOS: cmp-view-offers-disclaimer. Find Offers
    30

    Sun

    • Range$143-$287

    *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:
    Norman Y. Mineta San José International Airport
    Arriving at:
    Logan International Airport
    Distance:
    2689 miles

    Route Information

    87† Weekly flights

    † Weekly flights based on DOT published scheduled average flights Monday through Sunday between 9/1/2025 and 9/30/2025. Note: route may not operate every day of the week.

    ‡ Nonstop flights based on DOT published scheduled average flights Monday through Sunday between 9/1/2025 and 9/30/2025.

    Questions we hear the most

    There are 87 weekly flights from San Jose, CA to Boston on Southwest Airlines.
    To find the lowest fares by day and time to fly San Jose, CA 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 Jose, CA 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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