Southwest® flights from Baltimore/Washington to San Francisco from $159

Promo Code

Low fares from Baltimore/Washington to San Francisco

$

Baltimore/Washington (BWI)to

San Francisco (SFO)
Depart: 08/22/2026

One-way

Basic

From
$159
Seen: 9 hrs ago

Baltimore/Washington (BWI)to

San Francisco (SFO)
Depart: 11/05/2026

One-way

Basic

From
$159
Seen: 15 hrs ago

Baltimore/Washington (BWI)to

San Francisco (SFO)
Depart: 10/03/2026

One-way

Basic

From
$159
Seen: 9 hrs ago

Baltimore/Washington (BWI)to

San Francisco (SFO)
Depart: 09/26/2026

One-way

Basic

From
$159
Seen: 14 hrs ago

Baltimore/Washington (BWI)to

San Francisco (SFO)
Depart: 10/17/2026

One-way

Basic

From
$169
Seen: 12 hrs ago

Baltimore/Washington (BWI)to

San Francisco (SFO)
Depart: 09/08/2026

One-way

Basic

From
$169
Seen: 9 hrs ago

Looking for more low-fare flights?

Check out the Low Fare Calendar to find a fare that works for you. Just choose the month you want to depart and return, and we’ll show you the best fares available.

Find low fares

Explore flights from Baltimore/Washington to San Francisco

Aug 2026
From$159*
Seen: 9 hrs ago
One Way/Basic
Sep 2026
From$159*
Seen: 14 hrs ago
One Way/Basic
Oct 2026
From$159*
Seen: 9 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $159
cmp-daily-histogram-bars-legend-max-price-aria-label $629
Displaying fares for August-2026
  • BWI–SFO, 08/01/2026: From $629
    01

    Sat

    AUG

  • BWI–SFO, 08/02/2026: From $629
    02

    Sun

  • BWI–SFO: cmp-view-offers-disclaimer. Find Offers
    03

    Mon

  • BWI–SFO, 08/04/2026: From $629
    04

    Tue

  • BWI–SFO, 08/05/2026: From $629
    05

    Wed

  • BWI–SFO, 08/06/2026: From $629
    06

    Thu

  • BWI–SFO, 08/07/2026: From $499
    07

    Fri

  • BWI–SFO, 08/08/2026: From $489
    08

    Sat

  • BWI–SFO, 08/09/2026: From $499
    09

    Sun

  • BWI–SFO, 08/10/2026: From $499
    10

    Mon

  • BWI–SFO, 08/11/2026: From $489
    11

    Tue

  • BWI–SFO: cmp-view-offers-disclaimer. Find Offers
    12

    Wed

  • BWI–SFO, 08/13/2026: From $489
    13

    Thu

  • BWI–SFO, 08/14/2026: From $331
    14

    Fri

  • BWI–SFO, 08/15/2026: From $331
    15

    Sat

  • BWI–SFO, 08/16/2026: From $341
    16

    Sun

  • BWI–SFO, 08/17/2026: From $331
    17

    Mon

  • BWI–SFO, 08/18/2026: From $331
    18

    Tue

  • BWI–SFO, 08/19/2026: From $331
    19

    Wed

  • BWI–SFO, 08/20/2026: From $331
    20

    Thu

  • BWI–SFO, 08/21/2026: From $232
    21

    Fri

  • BWI–SFO, 08/22/2026: From $159
    22

    Sat

  • BWI–SFO, 08/23/2026: From $282
    23

    Sun

  • BWI–SFO, 08/24/2026: From $185
    24

    Mon

  • BWI–SFO, 08/25/2026: From $205
    25

    Tue

  • BWI–SFO, 08/26/2026: From $205
    26

    Wed

  • BWI–SFO, 08/27/2026: From $195
    27

    Thu

  • BWI–SFO, 08/28/2026: From $232
    28

    Fri

  • BWI–SFO, 08/29/2026: From $205
    29

    Sat

  • BWI–SFO: cmp-view-offers-disclaimer. Find Offers
    30

    Sun

  • BWI–SFO, 08/31/2026: From $205
    31

    Mon

    • Range$159-$629

    *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 Francisco International Airport
    Average flight time:
    5 hours 52 minutes
    Distance:
    2457 miles

    Route Information

    153† Weekly flights
    • 1‡ Nonstop flight per day Monday through Friday
    • 1‡ Nonstop flight on Saturday
    • 1‡ Nonstop flight 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 Francisco is 5 hours 52 minutes.
    There are 153 weekly flights from Baltimore/Washington to San Francisco on Southwest Airlines.
    Yes, Southwest flies nonstop from Baltimore/Washington to San Francisco once per day from Monday through Friday.
    Yes, Southwest flies nonstop from Baltimore/Washington to San Francisco once per day on Saturdays and Sundays.
    To find the lowest fares by day and time to fly Baltimore/Washington to San Francisco with Southwest, check out our Low Fare Calendar.
    You can rent a car at San Francisco International Airport book yours with your flight.
    Yes! Flights from Baltimore/Washington to San Francisco—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.

    Explore Flights from Other Popular Origins

    Popular Flights from Baltimore/Washington