Southwest® flights from Washington D.C. Reagan National to San Diego from $169

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

$

Washington D.C. Reagan National (DCA)to

San Diego (SAN)
Depart: 01/05/2027

One-way

Basic

From
$169
Seen: 1 hour ago

Washington D.C. Reagan National (DCA)to

San Diego (SAN)
Depart: 01/13/2027

One-way

Basic

From
$169
Seen: 2 hrs ago

Washington D.C. Reagan National (DCA)to

San Diego (SAN)
Depart: 01/12/2027

One-way

Basic

From
$174
Seen: 12 hrs ago

Washington D.C. Reagan National (DCA)to

San Diego (SAN)
Depart: 12/15/2026

One-way

Basic

From
$174
Seen: 12 hrs ago

Washington D.C. Reagan National (DCA)to

San Diego (SAN)
Depart: 12/16/2026

One-way

Basic

From
$174
Seen: 16 hrs ago

Washington D.C. Reagan National (DCA)to

San Diego (SAN)
Depart: 01/26/2027

One-way

Basic

From
$174
Seen: 3 hrs ago

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

Nov 2026
From$324*
Seen: 16 hrs ago
One Way/Basic
Dec 2026
From$174*
Seen: 16 hrs ago
One Way/Basic
Jan 2027
From$169*
Seen: 2 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $214
cmp-daily-histogram-bars-legend-max-price-aria-label $564
Displaying fares for November-2026
  • DCA–SAN, 11/10/2026: From $564
    10

    Tue

    NOV

  • DCA–SAN, 11/11/2026: From $564
    11

    Wed

  • DCA–SAN, 11/12/2026: From $564
    12

    Thu

  • DCA–SAN, 11/13/2026: From $564
    13

    Fri

  • DCA–SAN, 11/14/2026: From $564
    14

    Sat

  • DCA–SAN, 11/15/2026: From $564
    15

    Sun

  • DCA–SAN, 11/16/2026: From $424
    16

    Mon

  • DCA–SAN, 11/17/2026: From $414
    17

    Tue

  • DCA–SAN, 11/18/2026: From $419
    18

    Wed

  • DCA–SAN, 11/19/2026: From $439
    19

    Thu

  • DCA–SAN, 11/20/2026: From $419
    20

    Fri

  • DCA–SAN, 11/21/2026: From $414
    21

    Sat

  • DCA–SAN, 11/22/2026: From $414
    22

    Sun

  • DCA–SAN, 11/23/2026: From $324
    23

    Mon

  • DCA–SAN: cmp-view-offers-disclaimer. Find Offers
    24

    Tue

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

    Wed

  • DCA–SAN, 11/26/2026: From $324
    26

    Thu

  • DCA–SAN, 11/27/2026: From $364
    27

    Fri

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

    Sat

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

    Sun

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

    Mon

  • DCA–SAN, 12/01/2026: From $309
    01

    Tue

    DEC

  • DCA–SAN, 12/02/2026: From $229
    02

    Wed

  • DCA–SAN, 12/03/2026: From $244
    03

    Thu

  • DCA–SAN, 12/04/2026: From $249
    04

    Fri

  • DCA–SAN, 12/05/2026: From $239
    05

    Sat

  • DCA–SAN, 12/06/2026: From $254
    06

    Sun

  • DCA–SAN, 12/07/2026: From $234
    07

    Mon

  • DCA–SAN, 12/08/2026: From $224
    08

    Tue

  • DCA–SAN, 12/09/2026: From $214
    09

    Wed

    • Range$214-$564

    *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 Diego International Airport
    Distance:
    2276 miles

    Questions we hear the most

    There are 151 weekly flights from Washington, D.C. (Reagan National) to San Diego on Southwest Airlines.
    To find the lowest fares by day and time to fly Washington, D.C. (Reagan National) to San Diego with Southwest, check out our Low Fare Calendar.
    You can rent a car at San Diego International Airport book yours with your flight.
    Yes! Flights from Washington, D.C. (Reagan National) to San Diego—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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