Southwest® flights from San Diego to Denver from $99

Promo Code

Low fares from San Diego to Denver

$

San Diego (SAN)to

Denver (DEN)
Depart: 10/27/2026

One-way

Basic

From
$99
Seen: 12 hrs ago

San Diego (SAN)to

Denver (DEN)
Depart: 12/15/2026

One-way

Basic

From
$99
Seen: 16 hrs ago

San Diego (SAN)to

Denver (DEN)
Depart: 11/07/2026

One-way

Basic

From
$99
Seen: 18 hrs ago

San Diego (SAN)to

Denver (DEN)
Depart: 10/24/2026

One-way

Basic

From
$99
Seen: 7 hrs ago

San Diego (SAN)to

Denver (DEN)
Depart: 10/21/2026

One-way

Basic

From
$99
Seen: 7 hrs ago

San Diego (SAN)to

Denver (DEN)
Depart: 12/05/2026

One-way

Basic

From
$99
Seen: 2 hrs ago

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Explore flights from San Diego to Denver

Sep 2026
From$204*
Seen: 14 hrs ago
One Way/Basic
Oct 2026
From$99*
Seen: 5 hrs ago
One Way/Basic
Nov 2026
From$99*
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 $374
Displaying fares for September-2026
  • SAN–DEN, 09/11/2026: From $374
    11

    Fri

    SEP

  • SAN–DEN, 09/12/2026: From $374
    12

    Sat

  • SAN–DEN, 09/13/2026: From $374
    13

    Sun

  • SAN–DEN, 09/14/2026: From $374
    14

    Mon

  • SAN–DEN, 09/15/2026: From $374
    15

    Tue

  • SAN–DEN, 09/16/2026: From $289
    16

    Wed

  • SAN–DEN, 09/17/2026: From $299
    17

    Thu

  • SAN–DEN, 09/18/2026: From $289
    18

    Fri

  • SAN–DEN, 09/19/2026: From $289
    19

    Sat

  • SAN–DEN, 09/20/2026: From $289
    20

    Sun

  • SAN–DEN, 09/21/2026: From $289
    21

    Mon

  • SAN–DEN, 09/22/2026: From $299
    22

    Tue

  • SAN–DEN, 09/23/2026: From $289
    23

    Wed

  • SAN–DEN, 09/24/2026: From $204
    24

    Thu

  • SAN–DEN, 09/25/2026: From $204
    25

    Fri

  • SAN–DEN, 09/26/2026: From $204
    26

    Sat

  • SAN–DEN, 09/27/2026: From $204
    27

    Sun

  • SAN–DEN: cmp-view-offers-disclaimer. Find Offers
    28

    Mon

  • SAN–DEN, 09/29/2026: From $204
    29

    Tue

  • SAN–DEN: cmp-view-offers-disclaimer. Find Offers
    30

    Wed

  • SAN–DEN: cmp-view-offers-disclaimer. Find Offers
    01

    Thu

    OCT

  • SAN–DEN, 10/02/2026: From $149
    02

    Fri

  • SAN–DEN, 10/03/2026: From $134
    03

    Sat

  • SAN–DEN: cmp-view-offers-disclaimer. Find Offers
    04

    Sun

  • SAN–DEN, 10/05/2026: From $134
    05

    Mon

  • SAN–DEN, 10/06/2026: From $134
    06

    Tue

  • SAN–DEN, 10/07/2026: From $134
    07

    Wed

  • SAN–DEN, 10/08/2026: From $134
    08

    Thu

  • SAN–DEN, 10/09/2026: From $149
    09

    Fri

  • SAN–DEN: cmp-view-offers-disclaimer. Find Offers
    10

    Sat

    • Range$134-$374

    *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 Diego International Airport
    Arriving at:
    Denver International Airport
    Average flight time:
    2 hours 27 minutes
    Distance:
    853 miles

    Route Information

    156† Weekly flights
    • 7‡ Nonstop flights per day Monday through Friday
    • 5‡ Nonstop flights on Saturday
    • 6‡ Nonstop flights 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 San Diego to Denver is 2 hours 27 minutes.
    There are 156 weekly flights from San Diego to Denver on Southwest Airlines.
    Yes, Southwest flies nonstop from San Diego to Denver 7 times per day from Monday through Friday.
    Yes, Southwest flies nonstop from San Diego to Denver 5 times per day on Saturdays and 6 times per day on Sundays.
    To find the lowest fares by day and time to fly San Diego to Denver with Southwest, check out our Low Fare Calendar.
    You can rent a car at Denver International Airport book yours with your flight.
    Yes! Flights from San Diego to Denver—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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