Southwest® flights from Denver to Washington D.C. Reagan National from $126

Promo Code

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

$

Denver (DEN)to

Washington D.C. Reagan National (DCA)
Depart: 12/09/2026

One-way

Basic

From
$126
Seen: 18 hrs ago

Denver (DEN)to

Washington D.C. Reagan National (DCA)
Depart: 12/15/2026

One-way

Basic

From
$126
Seen: 7 hrs ago

Denver (DEN)to

Washington D.C. Reagan National (DCA)
Depart: 12/08/2026

One-way

Basic

From
$126
Seen: 4 hrs ago

Denver (DEN)to

Washington D.C. Reagan National (DCA)
Depart: 11/18/2026

One-way

Basic

From
$126
Seen: 5 hrs ago

Denver (DEN)to

Washington D.C. Reagan National (DCA)
Depart: 12/16/2026

One-way

Basic

From
$126
Seen: 23 hrs ago

Denver (DEN)to

Washington D.C. Reagan National (DCA)
Depart: 12/10/2026

One-way

Basic

From
$126
Seen: 22 hrs ago

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

Oct 2026
From$285*
Seen: 3 hrs ago
One Way/Basic
Nov 2026
From$126*
Seen: 5 hrs ago
One Way/Basic
Dec 2026
From$126*
Seen: 22 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $126
cmp-daily-histogram-bars-legend-max-price-aria-label $345
Displaying fares for October-2026
  • DEN–DCA: cmp-view-offers-disclaimer. Find Offers
    24

    Sat

    OCT

  • DEN–DCA: cmp-view-offers-disclaimer. Find Offers
    25

    Sun

  • DEN–DCA, 10/26/2026: From $345
    26

    Mon

  • DEN–DCA, 10/27/2026: From $340
    27

    Tue

  • DEN–DCA, 10/28/2026: From $340
    28

    Wed

  • DEN–DCA, 10/29/2026: From $345
    29

    Thu

  • DEN–DCA, 10/30/2026: From $285
    30

    Fri

  • DEN–DCA, 10/31/2026: From $285
    31

    Sat

  • DEN–DCA, 11/01/2026: From $285
    01

    Sun

    NOV

  • DEN–DCA, 11/02/2026: From $280
    02

    Mon

  • DEN–DCA, 11/03/2026: From $280
    03

    Tue

  • DEN–DCA, 11/04/2026: From $280
    04

    Wed

  • DEN–DCA, 11/05/2026: From $230
    05

    Thu

  • DEN–DCA, 11/06/2026: From $230
    06

    Fri

  • DEN–DCA, 11/07/2026: From $230
    07

    Sat

  • DEN–DCA, 11/08/2026: From $230
    08

    Sun

  • DEN–DCA, 11/09/2026: From $148
    09

    Mon

  • DEN–DCA, 11/10/2026: From $144
    10

    Tue

  • DEN–DCA, 11/11/2026: From $144
    11

    Wed

  • DEN–DCA, 11/12/2026: From $148
    12

    Thu

  • DEN–DCA, 11/13/2026: From $165
    13

    Fri

  • DEN–DCA, 11/14/2026: From $130
    14

    Sat

  • DEN–DCA, 11/15/2026: From $253
    15

    Sun

  • DEN–DCA, 11/16/2026: From $148
    16

    Mon

  • DEN–DCA, 11/17/2026: From $126
    17

    Tue

  • DEN–DCA, 11/18/2026: From $126
    18

    Wed

  • DEN–DCA, 11/19/2026: From $130
    19

    Thu

  • DEN–DCA, 11/20/2026: From $228
    20

    Fri

  • DEN–DCA, 11/21/2026: From $230
    21

    Sat

  • DEN–DCA, 11/22/2026: From $230
    22

    Sun

  • DEN–DCA, 11/23/2026: From $230
    23

    Mon

    • Range$126-$345

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

    Questions we hear the most

    There are 157 weekly flights from Denver to Washington, D.C. (Reagan National) on Southwest Airlines.
    To find the lowest fares by day and time to fly Denver to Washington, D.C. (Reagan National) with Southwest, check out our Low Fare Calendar.
    You can rent a car at Ronald Reagan National Airport book yours with your flight.
    Yes! Flights from Denver to Washington, D.C. (Reagan National)—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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