Southwest® flights from Baltimore/Washington to San Diego from $154

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Low fares from Baltimore/Washington to San Diego

$

Baltimore/Washington (BWI)to

San Diego (SAN)
Depart: 10/26/2026

One-way

Basic

From
$154
Seen: 2 hrs ago

Baltimore/Washington (BWI)to

San Diego (SAN)
Depart: 10/28/2026

One-way

Basic

From
$164
Seen: 17 hrs ago

Baltimore/Washington (BWI)to

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

One-way

Basic

From
$169
Seen: 23 hrs ago

Baltimore/Washington (BWI)to

San Diego (SAN)
Depart: 11/07/2026

One-way

Basic

From
$169
Seen: 15 hrs ago

Baltimore/Washington (BWI)to

San Diego (SAN)
Depart: 10/31/2026

One-way

Basic

From
$169
Seen: 15 hrs ago

Baltimore/Washington (BWI)to

San Diego (SAN)
Depart: 10/20/2026

One-way

Basic

From
$169
Seen: 13 hrs ago

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Explore flights from Baltimore/Washington to San Diego

Sep 2026
From$229*
Seen: 12 hrs ago
One Way/Basic
Oct 2026
From$154*
Seen: 2 hrs ago
One Way/Basic
Nov 2026
From$169*
Seen: 41 minutes ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $189
cmp-daily-histogram-bars-legend-max-price-aria-label $494
Displaying fares for September-2026
  • BWI–SAN, 09/09/2026: From $398
    09

    Wed

    SEP

  • BWI–SAN, 09/10/2026: From $388
    10

    Thu

  • BWI–SAN, 09/11/2026: From $388
    11

    Fri

  • BWI–SAN, 09/12/2026: From $494
    12

    Sat

  • BWI–SAN: cmp-view-offers-disclaimer. Find Offers
    13

    Sun

  • BWI–SAN, 09/14/2026: From $494
    14

    Mon

  • BWI–SAN, 09/15/2026: From $414
    15

    Tue

  • BWI–SAN, 09/16/2026: From $424
    16

    Wed

  • BWI–SAN, 09/17/2026: From $394
    17

    Thu

  • BWI–SAN, 09/18/2026: From $312
    18

    Fri

  • BWI–SAN, 09/19/2026: From $394
    19

    Sat

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

    Sun

  • BWI–SAN, 09/21/2026: From $384
    21

    Mon

  • BWI–SAN, 09/22/2026: From $299
    22

    Tue

  • BWI–SAN, 09/23/2026: From $299
    23

    Wed

  • BWI–SAN, 09/24/2026: From $289
    24

    Thu

  • BWI–SAN, 09/25/2026: From $289
    25

    Fri

  • BWI–SAN, 09/26/2026: From $299
    26

    Sat

  • BWI–SAN, 09/27/2026: From $299
    27

    Sun

  • BWI–SAN, 09/28/2026: From $289
    28

    Mon

  • BWI–SAN, 09/29/2026: From $299
    29

    Tue

  • BWI–SAN, 09/30/2026: From $229
    30

    Wed

  • BWI–SAN, 10/01/2026: From $279
    01

    Thu

    OCT

  • BWI–SAN, 10/02/2026: From $218
    02

    Fri

  • BWI–SAN, 10/03/2026: From $189
    03

    Sat

  • BWI–SAN, 10/04/2026: From $219
    04

    Sun

  • BWI–SAN, 10/05/2026: From $189
    05

    Mon

  • BWI–SAN, 10/06/2026: From $189
    06

    Tue

  • BWI–SAN, 10/07/2026: From $257
    07

    Wed

  • BWI–SAN, 10/08/2026: From $257
    08

    Thu

    • Range$189-$494

    *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

    Route Information

    156† Weekly flights
    • 3‡ Nonstop flights per day Monday through Friday
    • 2‡ Nonstop flights on Saturday
    • 3‡ Nonstop flights on Sunday

    † 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

    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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