Southwest® flights from San Diego to Washington D.C. Reagan National from $110

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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: 11/21/2026

One-way

Basic

From
$110
Seen: 11 hrs ago

San Diego (SAN)to

Washington D.C. Reagan National (DCA)
Depart: 11/21/2026

One-way

Choice

From
$145
Seen: 11 hrs ago

San Diego (SAN)to

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

One-way

Basic

From
$164
Seen: 18 hrs ago

San Diego (SAN)to

Washington D.C. Reagan National (DCA)
Depart: 11/10/2026

One-way

Basic

From
$164
Seen: 11 hrs ago

San Diego (SAN)to

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

One-way

Basic

From
$169
Seen: 5 hrs ago

San Diego (SAN)to

Washington D.C. Reagan National (DCA)
Depart: 11/04/2026

One-way

Basic

From
$169
Seen: 22 hrs ago

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

Oct 2026
From$196*
Seen: 15 hrs ago
One Way/Basic
Nov 2026
From$110*
Seen: 11 hrs ago
One Way/Basic
Dec 2026
From$184*
Seen: 6 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $189
cmp-daily-histogram-bars-legend-max-price-aria-label $888
Displaying fares for October-2026
  • SAN–DCA: cmp-view-offers-disclaimer. Find Offers
    02

    Fri

    OCT

  • SAN–DCA, 10/03/2026: From $549
    03

    Sat

  • SAN–DCA, 10/04/2026: From $888
    04

    Sun

  • SAN–DCA: cmp-view-offers-disclaimer. Find Offers
    05

    Mon

  • SAN–DCA, 10/06/2026: From $544
    06

    Tue

  • SAN–DCA, 10/07/2026: From $544
    07

    Wed

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

    Thu

  • SAN–DCA: cmp-view-offers-disclaimer. Find Offers
    09

    Fri

  • SAN–DCA, 10/10/2026: From $404
    10

    Sat

  • SAN–DCA, 10/11/2026: From $569
    11

    Sun

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

    Mon

  • SAN–DCA, 10/13/2026: From $404
    13

    Tue

  • SAN–DCA, 10/14/2026: From $404
    14

    Wed

  • SAN–DCA, 10/15/2026: From $309
    15

    Thu

  • SAN–DCA, 10/16/2026: From $309
    16

    Fri

  • SAN–DCA, 10/17/2026: From $309
    17

    Sat

  • SAN–DCA, 10/18/2026: From $372
    18

    Sun

  • SAN–DCA, 10/19/2026: From $224
    19

    Mon

  • SAN–DCA, 10/20/2026: From $196
    20

    Tue

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

    Wed

  • SAN–DCA, 10/22/2026: From $219
    22

    Thu

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

    Fri

  • SAN–DCA, 10/24/2026: From $219
    24

    Sat

  • SAN–DCA, 10/25/2026: From $239
    25

    Sun

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

    Mon

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

    Tue

  • SAN–DCA: cmp-view-offers-disclaimer. Find Offers
    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 $189
    01

    Sun

    NOV

    • Range$189-$888

    *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

    Route Information

    154† 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 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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