Southwest® flights from Boise to San Antonio from $172

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Low fares from Boise to San Antonio

$

Boise (BOI)to

San Antonio (SAT)
Depart: 12/05/2026

One-way

Basic

From
$172
Seen: 15 hrs ago

Boise (BOI)to

San Antonio (SAT)
Depart: 11/04/2026

One-way

Basic

From
$172
Seen: 15 hrs ago

Boise (BOI)to

San Antonio (SAT)
Depart: 10/21/2026

One-way

Basic

From
$185
Seen: 4 hrs ago

Boise (BOI)to

San Antonio (SAT)
Depart: 10/24/2026

One-way

Basic

From
$185
Seen: 19 hrs ago

Boise (BOI)to

San Antonio (SAT)
Depart: 01/07/2027

One-way

Basic

From
$185
Seen: 13 hrs ago

Boise (BOI)to

San Antonio (SAT)
Depart: 10/29/2026

One-way

Basic

From
$196
Seen: 15 hrs ago

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Explore flights from Boise to San Antonio

Oct 2026
From$185*
Seen: 19 hrs ago
One Way/Basic
Nov 2026
From$172*
Seen: 15 hrs ago
One Way/Basic
Dec 2026
From$172*
Seen: 15 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $185
cmp-daily-histogram-bars-legend-max-price-aria-label $440
Displaying fares for October-2026
  • BOI–SAT: cmp-view-offers-disclaimer. Find Offers
    01

    Thu

    OCT

  • BOI–SAT, 10/02/2026: From $365
    02

    Fri

  • BOI–SAT, 10/03/2026: From $282
    03

    Sat

  • BOI–SAT, 10/04/2026: From $440
    04

    Sun

  • BOI–SAT, 10/05/2026: From $365
    05

    Mon

  • BOI–SAT, 10/06/2026: From $282
    06

    Tue

  • BOI–SAT, 10/07/2026: From $282
    07

    Wed

  • BOI–SAT, 10/08/2026: From $365
    08

    Thu

  • BOI–SAT, 10/09/2026: From $365
    09

    Fri

  • BOI–SAT, 10/10/2026: From $282
    10

    Sat

  • BOI–SAT, 10/11/2026: From $365
    11

    Sun

  • BOI–SAT, 10/12/2026: From $365
    12

    Mon

  • BOI–SAT, 10/13/2026: From $287
    13

    Tue

  • BOI–SAT, 10/14/2026: From $282
    14

    Wed

  • BOI–SAT: cmp-view-offers-disclaimer. Find Offers
    15

    Thu

  • BOI–SAT, 10/16/2026: From $309
    16

    Fri

  • BOI–SAT, 10/17/2026: From $282
    17

    Sat

  • BOI–SAT, 10/18/2026: From $309
    18

    Sun

  • BOI–SAT, 10/19/2026: From $309
    19

    Mon

  • BOI–SAT, 10/20/2026: From $282
    20

    Tue

  • BOI–SAT, 10/21/2026: From $185
    21

    Wed

  • BOI–SAT: cmp-view-offers-disclaimer. Find Offers
    22

    Thu

  • BOI–SAT: cmp-view-offers-disclaimer. Find Offers
    23

    Fri

  • BOI–SAT, 10/24/2026: From $185
    24

    Sat

  • BOI–SAT: cmp-view-offers-disclaimer. Find Offers
    25

    Sun

  • BOI–SAT: cmp-view-offers-disclaimer. Find Offers
    26

    Mon

  • BOI–SAT: cmp-view-offers-disclaimer. Find Offers
    27

    Tue

  • BOI–SAT: cmp-view-offers-disclaimer. Find Offers
    28

    Wed

  • BOI–SAT, 10/29/2026: From $196
    29

    Thu

  • BOI–SAT, 10/30/2026: From $213
    30

    Fri

  • BOI–SAT: cmp-view-offers-disclaimer. Find Offers
    31

    Sat

    • Range$185-$440

    *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:
    Boise Airport
    Arriving at:
    San Antonio International Airport
    Distance:
    1377 miles

    Route Information

    114† 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 114 weekly flights from Boise to San Antonio on Southwest Airlines.
    To find the lowest fares by day and time to fly Boise to San Antonio with Southwest, check out our Low Fare Calendar.
    You can rent a car at San Antonio International Airport book yours with your flight.
    Yes! Flights from Boise to San Antonio—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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