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

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

$

Washington D.C. Reagan National (DCA)to

San Antonio (SAT)
Depart: 01/06/2027

One-way

Basic

From
$126
Seen: 23 hrs ago

Washington D.C. Reagan National (DCA)to

San Antonio (SAT)
Depart: 12/02/2026

One-way

Basic

From
$126
Seen: 14 hrs ago

Washington D.C. Reagan National (DCA)to

San Antonio (SAT)
Depart: 01/14/2027

One-way

Basic

From
$126
Seen: 4 hrs ago

Washington D.C. Reagan National (DCA)to

San Antonio (SAT)
Depart: 12/16/2026

One-way

Basic

From
$126
Seen: 7 hrs ago

Washington D.C. Reagan National (DCA)to

San Antonio (SAT)
Depart: 11/17/2026

One-way

Basic

From
$126
Seen: 18 hrs ago

Washington D.C. Reagan National (DCA)to

San Antonio (SAT)
Depart: 01/07/2027

One-way

Basic

From
$126
Seen: 12 hrs ago

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

Oct 2026
From$280*
Seen: 22 hrs ago
One Way/Basic
Nov 2026
From$126*
Seen: 18 hrs ago
One Way/Basic
Dec 2026
From$126*
Seen: 4 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
  • DCA–SAT: cmp-view-offers-disclaimer. Find Offers
    23

    Fri

    OCT

  • DCA–SAT, 10/24/2026: From $304
    24

    Sat

  • DCA–SAT, 10/25/2026: From $345
    25

    Sun

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

    Mon

  • DCA–SAT, 10/27/2026: From $299
    27

    Tue

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

    Wed

  • DCA–SAT, 10/29/2026: From $280
    29

    Thu

  • DCA–SAT, 10/30/2026: From $280
    30

    Fri

  • DCA–SAT: cmp-view-offers-disclaimer. Find Offers
    31

    Sat

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

    Sun

    NOV

  • DCA–SAT, 11/02/2026: From $285
    02

    Mon

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

    Tue

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

    Wed

  • DCA–SAT, 11/05/2026: From $275
    05

    Thu

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

    Fri

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

    Sat

  • DCA–SAT: cmp-view-offers-disclaimer. Find Offers
    08

    Sun

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

    Mon

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

    Tue

  • DCA–SAT: cmp-view-offers-disclaimer. Find Offers
    11

    Wed

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

    Thu

  • DCA–SAT, 11/13/2026: From $161
    13

    Fri

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

    Sat

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

    Sun

  • DCA–SAT, 11/16/2026: From $130
    16

    Mon

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

    Tue

  • DCA–SAT: cmp-view-offers-disclaimer. Find Offers
    18

    Wed

  • DCA–SAT, 11/19/2026: From $136
    19

    Thu

  • DCA–SAT, 11/20/2026: From $165
    20

    Fri

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

    Sat

  • DCA–SAT: cmp-view-offers-disclaimer. Find Offers
    22

    Sun

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

    Questions we hear the most

    There are 152 weekly flights from Washington, D.C. (Reagan National) to San Antonio on Southwest Airlines.
    To find the lowest fares by day and time to fly Washington, D.C. (Reagan National) to San Antonio with Southwest, check out our Low Fare Calendar.
    You can rent a car at San Antonio International Airport book yours with your flight.
    Yes! Flights from Washington, D.C. (Reagan National) to San Antonio—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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