Southwest® flights from Washington D.C. Reagan National to Denver from $175

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Low fares from Washington D.C. Reagan National to Denver

$

Washington D.C. Reagan National (DCA)to

Denver (DEN)
Depart: 11/13/2026

One-way

Basic

From
$175
Seen: 22 hrs ago

Washington D.C. Reagan National (DCA)to

Denver (DEN)
Depart: 10/26/2026

One-way

Basic

From
$175
Seen: 14 hrs ago

Washington D.C. Reagan National (DCA)to

Denver (DEN)
Depart: 10/16/2026

One-way

Basic

From
$175
Seen: 21 hrs ago

Washington D.C. Reagan National (DCA)to

Denver (DEN)
Depart: 10/29/2026

One-way

Basic

From
$175
Seen: 14 hrs ago

Washington D.C. Reagan National (DCA)to

Denver (DEN)
Depart: 12/11/2026

One-way

Basic

From
$175
Seen: 10 hrs ago

Washington D.C. Reagan National (DCA)to

Denver (DEN)
Depart: 12/03/2026

One-way

Basic

From
$175
Seen: 46 minutes ago

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Explore flights from Washington D.C. Reagan National to Denver

Sep 2026
From$180*
Seen: 16 hrs ago
One Way/Basic
Oct 2026
From$175*
Seen: 21 hrs ago
One Way/Basic
Nov 2026
From$175*
Seen: 22 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $175
cmp-daily-histogram-bars-legend-max-price-aria-label $325
Displaying fares for September-2026
  • DCA–DEN: cmp-view-offers-disclaimer. Find Offers
    10

    Thu

    SEP

  • DCA–DEN, 09/11/2026: From $325
    11

    Fri

  • DCA–DEN: cmp-view-offers-disclaimer. Find Offers
    12

    Sat

  • DCA–DEN: cmp-view-offers-disclaimer. Find Offers
    13

    Sun

  • DCA–DEN: cmp-view-offers-disclaimer. Find Offers
    14

    Mon

  • DCA–DEN: cmp-view-offers-disclaimer. Find Offers
    15

    Tue

  • DCA–DEN, 09/16/2026: From $309
    16

    Wed

  • DCA–DEN, 09/17/2026: From $325
    17

    Thu

  • DCA–DEN, 09/18/2026: From $265
    18

    Fri

  • DCA–DEN: cmp-view-offers-disclaimer. Find Offers
    19

    Sat

  • DCA–DEN: cmp-view-offers-disclaimer. Find Offers
    20

    Sun

  • DCA–DEN: cmp-view-offers-disclaimer. Find Offers
    21

    Mon

  • DCA–DEN, 09/22/2026: From $260
    22

    Tue

  • DCA–DEN: cmp-view-offers-disclaimer. Find Offers
    23

    Wed

  • DCA–DEN: cmp-view-offers-disclaimer. Find Offers
    24

    Thu

  • DCA–DEN, 09/25/2026: From $259
    25

    Fri

  • DCA–DEN, 09/26/2026: From $210
    26

    Sat

  • DCA–DEN, 09/27/2026: From $259
    27

    Sun

  • DCA–DEN, 09/28/2026: From $235
    28

    Mon

  • DCA–DEN, 09/29/2026: From $205
    29

    Tue

  • DCA–DEN, 09/30/2026: From $180
    30

    Wed

  • DCA–DEN, 10/01/2026: From $231
    01

    Thu

    OCT

  • DCA–DEN: cmp-view-offers-disclaimer. Find Offers
    02

    Fri

  • DCA–DEN, 10/03/2026: From $210
    03

    Sat

  • DCA–DEN, 10/04/2026: From $180
    04

    Sun

  • DCA–DEN, 10/05/2026: From $175
    05

    Mon

  • DCA–DEN, 10/06/2026: From $180
    06

    Tue

  • DCA–DEN, 10/07/2026: From $180
    07

    Wed

  • DCA–DEN, 10/08/2026: From $259
    08

    Thu

  • DCA–DEN, 10/09/2026: From $226
    09

    Fri

    • Range$175-$325

    *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:
    Ronald Reagan National Airport
    Arriving at:
    Denver International Airport
    Distance:
    1476 miles

    Route Information

    156† 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 156 weekly flights from Washington, D.C. (Reagan National) to Denver on Southwest Airlines.
    To find the lowest fares by day and time to fly Washington, D.C. (Reagan National) 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 Washington, D.C. (Reagan National) 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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