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

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San Antonio (SAT)to

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

One-way

Basic

From
$140
Seen: 22 hrs ago

San Antonio (SAT)to

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

One-way

Basic

From
$140
Seen: 21 hrs ago

San Antonio (SAT)to

Washington D.C. Reagan National (DCA)
Depart: 11/23/2026

One-way

Basic

From
$140
Seen: 16 hrs ago

San Antonio (SAT)to

Washington D.C. Reagan National (DCA)
Depart: 11/09/2026

One-way

Basic

From
$140
Seen: 15 hrs ago

San Antonio (SAT)to

Washington D.C. Reagan National (DCA)
Depart: 12/17/2026

One-way

Basic

From
$140
Seen: 15 hrs ago

San Antonio (SAT)to

Washington D.C. Reagan National (DCA)
Depart: 12/31/2026

One-way

Basic

From
$140
Seen: 21 hrs ago

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

Oct 2026
From$145*
Seen: 20 hrs ago
One Way/Basic
Nov 2026
From$140*
Seen: 21 hrs ago
One Way/Basic
Dec 2026
From$140*
Seen: 21 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $145
cmp-daily-histogram-bars-legend-max-price-aria-label $368
Displaying fares for October-2026
  • SAT–DCA: cmp-view-offers-disclaimer. Find Offers
    02

    Fri

    OCT

  • SAT–DCA, 10/03/2026: From $294
    03

    Sat

  • SAT–DCA, 10/04/2026: From $335
    04

    Sun

  • SAT–DCA, 10/05/2026: From $330
    05

    Mon

  • SAT–DCA: cmp-view-offers-disclaimer. Find Offers
    06

    Tue

  • SAT–DCA, 10/07/2026: From $294
    07

    Wed

  • SAT–DCA, 10/08/2026: From $368
    08

    Thu

  • SAT–DCA, 10/09/2026: From $319
    09

    Fri

  • SAT–DCA, 10/10/2026: From $275
    10

    Sat

  • SAT–DCA, 10/11/2026: From $280
    11

    Sun

  • SAT–DCA, 10/12/2026: From $270
    12

    Mon

  • SAT–DCA, 10/13/2026: From $275
    13

    Tue

  • SAT–DCA, 10/14/2026: From $270
    14

    Wed

  • SAT–DCA, 10/15/2026: From $215
    15

    Thu

  • SAT–DCA, 10/16/2026: From $264
    16

    Fri

  • SAT–DCA, 10/17/2026: From $220
    17

    Sat

  • SAT–DCA, 10/18/2026: From $324
    18

    Sun

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

    Mon

  • SAT–DCA, 10/20/2026: From $220
    20

    Tue

  • SAT–DCA, 10/21/2026: From $220
    21

    Wed

  • SAT–DCA, 10/22/2026: From $220
    22

    Thu

  • SAT–DCA, 10/23/2026: From $190
    23

    Fri

  • SAT–DCA, 10/24/2026: From $145
    24

    Sat

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

    Sun

  • SAT–DCA: cmp-view-offers-disclaimer. Find Offers
    26

    Mon

  • SAT–DCA, 10/27/2026: From $190
    27

    Tue

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

    Wed

  • SAT–DCA, 10/29/2026: From $185
    29

    Thu

  • SAT–DCA, 10/30/2026: From $190
    30

    Fri

  • SAT–DCA, 10/31/2026: From $145
    31

    Sat

  • SAT–DCA: cmp-view-offers-disclaimer. Find Offers
    01

    Sun

    NOV

    • Range$145-$368

    *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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