Southwest® flights from Boise to San Francisco from $119

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Low fares from Boise to San Francisco

$

Boise (BOI)to

San Francisco (SFO)
Depart: 09/10/2026

One-way

Basic

From
$119
Seen: 21 hrs ago

Boise (BOI)to

San Francisco (SFO)
Depart: 10/16/2026

One-way

Basic

From
$119
Seen: 20 hrs ago

Boise (BOI)to

San Francisco (SFO)
Depart: 09/17/2026

One-way

Basic

From
$119
Seen: 19 hrs ago

Boise (BOI)to

San Francisco (SFO)
Depart: 10/16/2026

One-way

Choice

From
$159
Seen: 20 hrs ago

Boise (BOI)to

San Francisco (SFO)
Depart: 09/10/2026

One-way

Choice

From
$159
Seen: 21 hrs ago

Boise (BOI)to

San Francisco (SFO)
Depart: 09/17/2026

One-way

Choice

From
$159
Seen: 19 hrs ago

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Explore flights from Boise to San Francisco

Aug 2026
From$172*
Seen: 13 hrs ago
One Way/Basic
Sep 2026
From$119*
Seen: 21 hrs ago
One Way/Basic
Oct 2026
From$119*
Seen: 20 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $172
cmp-daily-histogram-bars-legend-max-price-aria-label $309
Displaying fares for August-2026
  • BOI–SFO, 08/02/2026: From $305
    02

    Sun

    AUG

  • BOI–SFO: cmp-view-offers-disclaimer. Find Offers
    03

    Mon

  • BOI–SFO, 08/04/2026: From $305
    04

    Tue

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    05

    Wed

  • BOI–SFO, 08/06/2026: From $305
    06

    Thu

  • BOI–SFO, 08/07/2026: From $309
    07

    Fri

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    08

    Sat

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    09

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    10

    Mon

  • BOI–SFO, 08/11/2026: From $305
    11

    Tue

  • BOI–SFO, 08/12/2026: From $305
    12

    Wed

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    13

    Thu

  • BOI–SFO, 08/14/2026: From $229
    14

    Fri

  • BOI–SFO, 08/15/2026: From $229
    15

    Sat

  • BOI–SFO, 08/16/2026: From $229
    16

    Sun

  • BOI–SFO, 08/17/2026: From $229
    17

    Mon

  • BOI–SFO: cmp-view-offers-disclaimer. Find Offers
    18

    Tue

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    19

    Wed

  • BOI–SFO: cmp-view-offers-disclaimer. Find Offers
    20

    Thu

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    21

    Fri

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    22

    Sat

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    23

    Sun

  • BOI–SFO, 08/24/2026: From $172
    24

    Mon

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    25

    Tue

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

    Wed

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    27

    Thu

  • BOI–SFO, 08/28/2026: From $184
    28

    Fri

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    29

    Sat

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    30

    Sun

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    31

    Mon

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    01

    Tue

    SEP

    • Range$172-$309

    *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 Francisco International Airport
    Distance:
    522 miles

    Route Information

    113† 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 113 weekly flights from Boise to San Francisco on Southwest Airlines.
    To find the lowest fares by day and time to fly Boise to San Francisco with Southwest, check out our Low Fare Calendar.
    You can rent a car at San Francisco International Airport book yours with your flight.
    Yes! Flights from Boise to San Francisco—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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