Southwest® flights from San Antonio to Washington D.C. Reagan National from $140

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Low fares from San Antonio to Washington D.C. Reagan National

$

San Antonio (SAT)to

Washington D.C. Reagan National (DCA)
Depart: 11/03/2026

One-way

Basic

From
$140
Seen: 23 hrs ago

San Antonio (SAT)to

Washington D.C. Reagan National (DCA)
Depart: 10/24/2026

One-way

Basic

From
$145
Seen: 20 hrs ago

San Antonio (SAT)to

Washington D.C. Reagan National (DCA)
Depart: 10/27/2026

One-way

Basic

From
$145
Seen: 21 hrs ago

San Antonio (SAT)to

Washington D.C. Reagan National (DCA)
Depart: 10/17/2026

One-way

Basic

From
$145
Seen: 20 hrs ago

San Antonio (SAT)to

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

One-way

Basic

From
$152
Seen: 8 hrs ago

San Antonio (SAT)to

Washington D.C. Reagan National (DCA)
Depart: 12/13/2026

One-way

Basic

From
$180
Seen: 20 hrs ago

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Explore flights from San Antonio to Washington D.C. Reagan National

Sep 2026
From$220*
Seen: 20 hrs ago
One Way/Basic
Oct 2026
From$145*
Seen: 20 hrs ago
One Way/Basic
Nov 2026
From$140*
Seen: 23 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $185
cmp-daily-histogram-bars-legend-max-price-aria-label $335
Displaying fares for September-2026
  • SAT–DCA, 09/12/2026: From $294
    12

    Sat

    SEP

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

    Sun

  • SAT–DCA, 09/14/2026: From $330
    14

    Mon

  • SAT–DCA, 09/15/2026: From $289
    15

    Tue

  • SAT–DCA, 09/16/2026: From $289
    16

    Wed

  • SAT–DCA, 09/17/2026: From $335
    17

    Thu

  • SAT–DCA, 09/18/2026: From $275
    18

    Fri

  • SAT–DCA, 09/19/2026: From $270
    19

    Sat

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

    Sun

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

    Mon

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

    Tue

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

    Wed

  • SAT–DCA, 09/24/2026: From $275
    24

    Thu

  • SAT–DCA, 09/25/2026: From $269
    25

    Fri

  • SAT–DCA, 09/26/2026: From $220
    26

    Sat

  • SAT–DCA, 09/27/2026: From $274
    27

    Sun

  • SAT–DCA: cmp-view-offers-disclaimer. Find Offers
    28

    Mon

  • SAT–DCA: cmp-view-offers-disclaimer. Find Offers
    29

    Tue

  • SAT–DCA, 09/30/2026: From $220
    30

    Wed

  • SAT–DCA, 10/01/2026: From $220
    01

    Thu

    OCT

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

    Fri

  • SAT–DCA, 10/03/2026: From $190
    03

    Sat

  • SAT–DCA, 10/04/2026: From $190
    04

    Sun

  • SAT–DCA, 10/05/2026: From $185
    05

    Mon

  • SAT–DCA, 10/06/2026: From $190
    06

    Tue

  • SAT–DCA, 10/07/2026: From $190
    07

    Wed

  • SAT–DCA, 10/08/2026: From $321
    08

    Thu

  • SAT–DCA, 10/09/2026: From $244
    09

    Fri

  • SAT–DCA: cmp-view-offers-disclaimer. Find Offers
    10

    Sat

  • SAT–DCA, 10/11/2026: From $244
    11

    Sun

    • Range$185-$335

    *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 Antonio International Airport
    Arriving at:
    Ronald Reagan National Airport
    Distance:
    1380 miles

    Route Information

    151† 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 151 weekly flights from San Antonio to Washington, D.C. (Reagan National) on Southwest Airlines.
    To find the lowest fares by day and time to fly San Antonio 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 San Antonio 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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