Southwest® flights from Boise to San Diego from $79

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Low fares from Boise to San Diego

$

Boise (BOI)to

San Diego (SAN)
Depart: 09/30/2026

One-way

Basic

From
$79
Seen: 20 hrs ago

Boise (BOI)to

San Diego (SAN)
Depart: 10/06/2026

One-way

Basic

From
$79
Seen: 23 hrs ago

Boise (BOI)to

San Diego (SAN)
Depart: 10/04/2026

One-way

Basic

From
$79
Seen: 19 hrs ago

Boise (BOI)to

San Diego (SAN)
Depart: 11/15/2026

One-way

Basic

From
$79
Seen: 14 hrs ago

Boise (BOI)to

San Diego (SAN)
Depart: 09/18/2026

One-way

Basic

From
$79
Seen: 14 hrs ago

Boise (BOI)to

San Diego (SAN)
Depart: 09/27/2026

One-way

Basic

From
$79
Seen: 13 hrs ago

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Explore flights from Boise to San Diego

Aug 2026
From$139*
Seen: 5 hrs ago
One Way/Basic
Sep 2026
From$79*
Seen: 17 hrs ago
One Way/Basic
Oct 2026
From$79*
Seen: 18 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $79
cmp-daily-histogram-bars-legend-max-price-aria-label $249
Displaying fares for August-2026
  • BOI–SAN, 08/21/2026: From $209
    21

    Fri

    AUG

  • BOI–SAN, 08/22/2026: From $209
    22

    Sat

  • BOI–SAN, 08/23/2026: From $249
    23

    Sun

  • BOI–SAN, 08/24/2026: From $169
    24

    Mon

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

    Tue

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

    Wed

  • BOI–SAN, 08/27/2026: From $139
    27

    Thu

  • BOI–SAN, 08/28/2026: From $159
    28

    Fri

  • BOI–SAN, 08/29/2026: From $159
    29

    Sat

  • BOI–SAN, 08/30/2026: From $159
    30

    Sun

  • BOI–SAN, 08/31/2026: From $139
    31

    Mon

  • BOI–SAN, 09/01/2026: From $139
    01

    Tue

    SEP

  • BOI–SAN: cmp-view-offers-disclaimer. Find Offers
    02

    Wed

  • BOI–SAN, 09/03/2026: From $109
    03

    Thu

  • BOI–SAN, 09/04/2026: From $214
    04

    Fri

  • BOI–SAN, 09/05/2026: From $109
    05

    Sat

  • BOI–SAN, 09/06/2026: From $169
    06

    Sun

  • BOI–SAN, 09/07/2026: From $149
    07

    Mon

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

    Tue

  • BOI–SAN, 09/09/2026: From $109
    09

    Wed

  • BOI–SAN, 09/10/2026: From $79
    10

    Thu

  • BOI–SAN, 09/11/2026: From $79
    11

    Fri

  • BOI–SAN, 09/12/2026: From $79
    12

    Sat

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

    Sun

  • BOI–SAN: cmp-view-offers-disclaimer. Find Offers
    14

    Mon

  • BOI–SAN, 09/15/2026: From $79
    15

    Tue

  • BOI–SAN, 09/16/2026: From $79
    16

    Wed

  • BOI–SAN, 09/17/2026: From $79
    17

    Thu

  • BOI–SAN, 09/18/2026: From $79
    18

    Fri

  • BOI–SAN, 09/19/2026: From $79
    19

    Sat

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

    Sun

    • Range$79-$249

    *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 Diego International Airport
    Average flight time:
    2 hours 14 minutes
    Distance:
    749 miles

    Route Information

    146† Weekly flights
    • 1‡ Nonstop flight per day Monday through Friday
    • 1‡ Nonstop flight on Saturday
    • 1‡ Nonstop flight on Sunday

    † 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

    The average flight time from Boise to San Diego is 2 hours 14 minutes.
    There are 146 weekly flights from Boise to San Diego on Southwest Airlines.
    Yes, Southwest flies nonstop from Boise to San Diego once per day from Monday through Friday.
    Yes, Southwest flies nonstop from Boise to San Diego once per day on Saturdays and Sundays.
    To find the lowest fares by day and time to fly Boise to San Diego with Southwest, check out our Low Fare Calendar.
    You can rent a car at San Diego International Airport book yours with your flight.
    Yes! Flights from Boise to San Diego—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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