Southwest® flights from San Francisco to Boise from $124

Promo Code

Low fares from San Francisco to Boise

$

San Francisco (SFO)to

Boise (BOI)
Depart: 12/09/2026

One-way

Basic

From
$124
Seen: 22 hrs ago

San Francisco (SFO)to

Boise (BOI)
Depart: 10/24/2026

One-way

Basic

From
$124
Seen: 4 hrs ago

San Francisco (SFO)to

Boise (BOI)
Depart: 11/10/2026

One-way

Basic

From
$124
Seen: 18 hrs ago

San Francisco (SFO)to

Boise (BOI)
Depart: 10/10/2026

One-way

Basic

From
$124
Seen: 17 hrs ago

San Francisco (SFO)to

Boise (BOI)
Depart: 10/26/2026

One-way

Basic

From
$129
Seen: 23 hrs ago

San Francisco (SFO)to

Boise (BOI)
Depart: 10/29/2026

One-way

Basic

From
$129
Seen: 6 hrs ago

Looking for more low-fare flights?

Check out the Low Fare Calendar to find a fare that works for you. Just choose the month you want to depart and return, and we’ll show you the best fares available.

Find low fares

Explore flights from San Francisco to Boise

Sep 2026
From$140*
Seen: 22 hrs ago
One Way/Basic
Oct 2026
From$124*
Seen: 17 hrs ago
One Way/Basic
Nov 2026
From$124*
Seen: 18 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $134
cmp-daily-histogram-bars-legend-max-price-aria-label $622
Displaying fares for September-2026
  • SFO–BOI, 09/03/2026: From $399
    03

    Thu

    SEP

  • SFO–BOI, 09/04/2026: From $305
    04

    Fri

  • SFO–BOI, 09/05/2026: From $305
    05

    Sat

  • SFO–BOI, 09/06/2026: From $310
    06

    Sun

  • SFO–BOI, 09/07/2026: From $622
    07

    Mon

  • SFO–BOI: cmp-view-offers-disclaimer. Find Offers
    08

    Tue

  • SFO–BOI: cmp-view-offers-disclaimer. Find Offers
    09

    Wed

  • SFO–BOI, 09/10/2026: From $310
    10

    Thu

  • SFO–BOI, 09/11/2026: From $305
    11

    Fri

  • SFO–BOI: cmp-view-offers-disclaimer. Find Offers
    12

    Sat

  • SFO–BOI: cmp-view-offers-disclaimer. Find Offers
    13

    Sun

  • SFO–BOI, 09/14/2026: From $310
    14

    Mon

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

    Tue

  • SFO–BOI, 09/16/2026: From $229
    16

    Wed

  • SFO–BOI: cmp-view-offers-disclaimer. Find Offers
    17

    Thu

  • SFO–BOI, 09/18/2026: From $234
    18

    Fri

  • SFO–BOI, 09/19/2026: From $229
    19

    Sat

  • SFO–BOI, 09/20/2026: From $291
    20

    Sun

  • SFO–BOI: cmp-view-offers-disclaimer. Find Offers
    21

    Mon

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

    Tue

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

    Wed

  • SFO–BOI: cmp-view-offers-disclaimer. Find Offers
    24

    Thu

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

    Fri

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

    Sat

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

    Sun

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

    Mon

  • SFO–BOI: cmp-view-offers-disclaimer. Find Offers
    29

    Tue

  • SFO–BOI, 09/30/2026: From $140
    30

    Wed

  • SFO–BOI, 10/01/2026: From $254
    01

    Thu

    OCT

  • SFO–BOI, 10/02/2026: From $134
    02

    Fri

    • Range$134-$622

    *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 Francisco International Airport
    Arriving at:
    Boise Airport
    Distance:
    522 miles

    Route Information

    105† 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 105 weekly flights from San Francisco to Boise on Southwest Airlines.
    To find the lowest fares by day and time to fly San Francisco to Boise with Southwest, check out our Low Fare Calendar.
    You can rent a car at Boise Airport book yours with your flight.
    Yes! Flights from San Francisco to Boise—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.

    Explore Flights from Other Popular Origins

    Popular Flights from San Francisco