Southwest® flights from San Diego to Washington D.C. Reagan National from $155

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

$

San Diego (SAN)to

Washington D.C. Reagan National (DCA)
Depart: 01/06/2027

One-way

Basic

From
$155
Seen: 20 hrs ago

San Diego (SAN)to

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

One-way

Basic

From
$155
Seen: 5 hrs ago

San Diego (SAN)to

Washington D.C. Reagan National (DCA)
Depart: 12/14/2026

One-way

Basic

From
$155
Seen: 1 hour ago

San Diego (SAN)to

Washington D.C. Reagan National (DCA)
Depart: 01/28/2027

One-way

Basic

From
$155
Seen: 15 minutes ago

San Diego (SAN)to

Washington D.C. Reagan National (DCA)
Depart: 12/03/2026

One-way

Basic

From
$155
Seen: 18 hrs ago

San Diego (SAN)to

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

One-way

Basic

From
$155
Seen: 4 hrs ago

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

Oct 2026
From$409*
Seen: 5 hrs ago
One Way/Basic
Nov 2026
From$159*
Seen: 9 hrs ago
One Way/Basic
Dec 2026
From$155*
Seen: 22 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $159
cmp-daily-histogram-bars-legend-max-price-aria-label $559
Displaying fares for October-2026
  • SAN–DCA, 10/22/2026: From $554
    22

    Thu

    OCT

  • SAN–DCA, 10/23/2026: From $559
    23

    Fri

  • SAN–DCA, 10/24/2026: From $559
    24

    Sat

  • SAN–DCA, 10/25/2026: From $559
    25

    Sun

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

    Mon

  • SAN–DCA: cmp-view-offers-disclaimer. Find Offers
    27

    Tue

  • SAN–DCA, 10/28/2026: From $409
    28

    Wed

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

    Thu

  • SAN–DCA: cmp-view-offers-disclaimer. Find Offers
    30

    Fri

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

    Sat

  • SAN–DCA, 11/01/2026: From $414
    01

    Sun

    NOV

  • SAN–DCA, 11/02/2026: From $414
    02

    Mon

  • SAN–DCA, 11/03/2026: From $414
    03

    Tue

  • SAN–DCA, 11/04/2026: From $319
    04

    Wed

  • SAN–DCA, 11/05/2026: From $319
    05

    Thu

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

    Fri

  • SAN–DCA, 11/07/2026: From $319
    07

    Sat

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

    Sun

  • SAN–DCA, 11/09/2026: From $201
    09

    Mon

  • SAN–DCA, 11/10/2026: From $197
    10

    Tue

  • SAN–DCA, 11/11/2026: From $159
    11

    Wed

  • SAN–DCA, 11/12/2026: From $284
    12

    Thu

  • SAN–DCA, 11/13/2026: From $204
    13

    Fri

  • SAN–DCA, 11/14/2026: From $177
    14

    Sat

  • SAN–DCA, 11/15/2026: From $205
    15

    Sun

  • SAN–DCA: cmp-view-offers-disclaimer. Find Offers
    16

    Mon

  • SAN–DCA: cmp-view-offers-disclaimer. Find Offers
    17

    Tue

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

    Wed

  • SAN–DCA, 11/19/2026: From $254
    19

    Thu

  • SAN–DCA, 11/20/2026: From $284
    20

    Fri

  • SAN–DCA, 11/21/2026: From $249
    21

    Sat

    • Range$159-$559

    *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 Diego International Airport
    Arriving at:
    Ronald Reagan National Airport
    Distance:
    2276 miles

    Questions we hear the most

    There are 154 weekly flights from San Diego to Washington, D.C. (Reagan National) on Southwest Airlines.
    To find the lowest fares by day and time to fly San Diego 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 Diego 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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