Southwest® flights from Baltimore/Washington to San Diego from $138

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Low fares from Baltimore/Washington to San Diego

$

Baltimore/Washington (BWI)to

San Diego (SAN)
Depart: 01/20/2027

One-way

Basic

From
$138
Seen: 6 hrs ago

Baltimore/Washington (BWI)to

San Diego (SAN)
Depart: 01/23/2027

One-way

Basic

From
$138
Seen: 6 hrs ago

Baltimore/Washington (BWI)to

San Diego (SAN)
Depart: 12/17/2026

One-way

Basic

From
$138
Seen: 37 minutes ago

Baltimore/Washington (BWI)to

San Diego (SAN)
Depart: 12/10/2026

One-way

Basic

From
$138
Seen: 4 hrs ago

Baltimore/Washington (BWI)to

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

One-way

Basic

From
$141
Seen: 5 hrs ago

Baltimore/Washington (BWI)to

San Diego (SAN)
Depart: 12/08/2026

One-way

Basic

From
$169
Seen: 20 hrs ago

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Explore flights from Baltimore/Washington to San Diego

Oct 2026
From$404*
Seen: 4 hrs ago
One Way/Basic
Nov 2026
From$141*
Seen: 5 hrs ago
One Way/Basic
Dec 2026
From$138*
Seen: 4 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $141
cmp-daily-histogram-bars-legend-max-price-aria-label $539
Displaying fares for October-2026
  • BWI–SAN, 10/19/2026: From $539
    19

    Mon

    OCT

  • BWI–SAN, 10/20/2026: From $534
    20

    Tue

  • BWI–SAN, 10/21/2026: From $534
    21

    Wed

  • BWI–SAN, 10/22/2026: From $534
    22

    Thu

  • BWI–SAN, 10/23/2026: From $534
    23

    Fri

  • BWI–SAN, 10/24/2026: From $539
    24

    Sat

  • BWI–SAN, 10/25/2026: From $414
    25

    Sun

  • BWI–SAN, 10/26/2026: From $404
    26

    Mon

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

    Tue

  • BWI–SAN, 10/28/2026: From $404
    28

    Wed

  • BWI–SAN, 10/29/2026: From $404
    29

    Thu

  • BWI–SAN, 10/30/2026: From $404
    30

    Fri

  • BWI–SAN, 10/31/2026: From $404
    31

    Sat

  • BWI–SAN, 11/01/2026: From $309
    01

    Sun

    NOV

  • BWI–SAN, 11/02/2026: From $309
    02

    Mon

  • BWI–SAN, 11/03/2026: From $319
    03

    Tue

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

    Wed

  • BWI–SAN, 11/05/2026: From $309
    05

    Thu

  • BWI–SAN, 11/06/2026: From $309
    06

    Fri

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

    Sat

  • BWI–SAN, 11/08/2026: From $239
    08

    Sun

  • BWI–SAN, 11/09/2026: From $174
    09

    Mon

  • BWI–SAN, 11/10/2026: From $174
    10

    Tue

  • BWI–SAN: cmp-view-offers-disclaimer. Find Offers
    11

    Wed

  • BWI–SAN, 11/12/2026: From $174
    12

    Thu

  • BWI–SAN, 11/13/2026: From $194
    13

    Fri

  • BWI–SAN, 11/14/2026: From $249
    14

    Sat

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

    Sun

  • BWI–SAN, 11/16/2026: From $239
    16

    Mon

  • BWI–SAN, 11/17/2026: From $141
    17

    Tue

  • BWI–SAN, 11/18/2026: From $169
    18

    Wed

    • Range$141-$539

    *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:
    Balt./Wash. International Airport
    Arriving at:
    San Diego International Airport
    Average flight time:
    5 hours 35 minutes
    Distance:
    2295 miles

    Questions we hear the most

    The average flight time from Baltimore/Washington to San Diego is 5 hours 35 minutes.
    There are 156 weekly flights from Baltimore/Washington to San Diego on Southwest Airlines.
    Yes, Southwest flies nonstop from Baltimore/Washington to San Diego 3 times per day from Monday through Friday.
    Yes, Southwest flies nonstop from Baltimore/Washington to San Diego 2 times per day on Saturdays and 3 times per day on Sundays.
    To find the lowest fares by day and time to fly Baltimore/Washington 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 Baltimore/Washington 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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