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

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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: 01/26/2027

One-way

Basic

From
$155
Seen: 20 hrs ago

Washington D.C. Reagan National (DCA)to

San Diego (SAN)
Depart: 12/14/2026

One-way

Basic

From
$155
Seen: 22 hrs ago

Washington D.C. Reagan National (DCA)to

San Diego (SAN)
Depart: 11/17/2026

One-way

Basic

From
$155
Seen: 12 hrs ago

Washington D.C. Reagan National (DCA)to

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

One-way

Basic

From
$155
Seen: 13 hrs ago

Washington D.C. Reagan National (DCA)to

San Diego (SAN)
Depart: 01/28/2027

One-way

Basic

From
$155
Seen: 9 hrs ago

Washington D.C. Reagan National (DCA)to

San Diego (SAN)
Depart: 11/14/2026

One-way

Basic

From
$159
Seen: 18 hrs ago

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

Oct 2026
From$409*
Seen: 14 hrs ago
One Way/Basic
Nov 2026
From$155*
Seen: 12 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 $155
cmp-daily-histogram-bars-legend-max-price-aria-label $559
Displaying fares for October-2026
  • DCA–SAN, 10/21/2026: From $554
    21

    Wed

    OCT

  • DCA–SAN, 10/22/2026: From $559
    22

    Thu

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

    Fri

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

    Sat

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

    Sun

  • DCA–SAN, 10/26/2026: From $414
    26

    Mon

  • DCA–SAN, 10/27/2026: From $409
    27

    Tue

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

    Wed

  • DCA–SAN, 10/29/2026: From $414
    29

    Thu

  • DCA–SAN, 10/30/2026: From $409
    30

    Fri

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

    Sat

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

    Sun

    NOV

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

    Mon

  • DCA–SAN, 11/03/2026: From $314
    03

    Tue

  • DCA–SAN, 11/04/2026: From $314
    04

    Wed

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

    Thu

  • DCA–SAN, 11/06/2026: From $319
    06

    Fri

  • DCA–SAN: cmp-view-offers-disclaimer. Find Offers
    07

    Sat

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

    Sun

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

    Mon

  • DCA–SAN: cmp-view-offers-disclaimer. Find Offers
    10

    Tue

  • DCA–SAN, 11/11/2026: From $165
    11

    Wed

  • DCA–SAN, 11/12/2026: From $159
    12

    Thu

  • DCA–SAN, 11/13/2026: From $200
    13

    Fri

  • DCA–SAN, 11/14/2026: From $159
    14

    Sat

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

    Sun

  • DCA–SAN, 11/16/2026: From $165
    16

    Mon

  • DCA–SAN, 11/17/2026: From $155
    17

    Tue

  • DCA–SAN, 11/18/2026: From $364
    18

    Wed

  • DCA–SAN, 11/19/2026: From $269
    19

    Thu

  • DCA–SAN: cmp-view-offers-disclaimer. Find Offers
    20

    Fri

    • Range$155-$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:
    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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