Southwest® flights from Seattle/Tacoma to Baltimore/Washington from $94

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Low fares from Seattle/Tacoma to Baltimore/Washington

$

Seattle/Tacoma (SEA)to

Baltimore/Washington (BWI)
Depart: 08/31/2026

One-way

Basic

From
$94
Seen: 20 hrs ago

Seattle/Tacoma (SEA)to

Baltimore/Washington (BWI)
Depart: 10/21/2026

One-way

Basic

From
$94
Seen: 10 hrs ago

Seattle/Tacoma (SEA)to

Baltimore/Washington (BWI)
Depart: 09/09/2026

One-way

Basic

From
$94
Seen: 9 hrs ago

Seattle/Tacoma (SEA)to

Baltimore/Washington (BWI)
Depart: 09/08/2026

One-way

Basic

From
$94
Seen: 9 hrs ago

Seattle/Tacoma (SEA)to

Baltimore/Washington (BWI)
Depart: 09/17/2026

One-way

Basic

From
$94
Seen: 9 hrs ago

Seattle/Tacoma (SEA)to

Baltimore/Washington (BWI)
Depart: 09/05/2026

One-way

Basic

From
$94
Seen: 13 hrs ago

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Explore flights from Seattle/Tacoma to Baltimore/Washington

Aug 2026
From$94*
Seen: 20 hrs ago
One Way/Basic
Sep 2026
From$94*
Seen: 9 hrs ago
One Way/Basic
Oct 2026
From$94*
Seen: 10 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $94
cmp-daily-histogram-bars-legend-max-price-aria-label $429
Displaying fares for August-2026
  • SEA–BWI, 08/02/2026: From $374
    02

    Sun

    AUG

  • SEA–BWI, 08/03/2026: From $374
    03

    Mon

  • SEA–BWI, 08/04/2026: From $384
    04

    Tue

  • SEA–BWI, 08/05/2026: From $384
    05

    Wed

  • SEA–BWI, 08/06/2026: From $384
    06

    Thu

  • SEA–BWI, 08/07/2026: From $384
    07

    Fri

  • SEA–BWI, 08/08/2026: From $344
    08

    Sat

  • SEA–BWI, 08/09/2026: From $429
    09

    Sun

  • SEA–BWI, 08/10/2026: From $344
    10

    Mon

  • SEA–BWI, 08/11/2026: From $334
    11

    Tue

  • SEA–BWI, 08/12/2026: From $344
    12

    Wed

  • SEA–BWI, 08/13/2026: From $344
    13

    Thu

  • SEA–BWI: cmp-view-offers-disclaimer. Find Offers
    14

    Fri

  • SEA–BWI, 08/15/2026: From $319
    15

    Sat

  • SEA–BWI, 08/16/2026: From $334
    16

    Sun

  • SEA–BWI, 08/17/2026: From $319
    17

    Mon

  • SEA–BWI, 08/18/2026: From $319
    18

    Tue

  • SEA–BWI: cmp-view-offers-disclaimer. Find Offers
    19

    Wed

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

    Thu

  • SEA–BWI: cmp-view-offers-disclaimer. Find Offers
    21

    Fri

  • SEA–BWI, 08/22/2026: From $228
    22

    Sat

  • SEA–BWI: cmp-view-offers-disclaimer. Find Offers
    23

    Sun

  • SEA–BWI: cmp-view-offers-disclaimer. Find Offers
    24

    Mon

  • SEA–BWI: cmp-view-offers-disclaimer. Find Offers
    25

    Tue

  • SEA–BWI: cmp-view-offers-disclaimer. Find Offers
    26

    Wed

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

    Thu

  • SEA–BWI, 08/28/2026: From $218
    28

    Fri

  • SEA–BWI: cmp-view-offers-disclaimer. Find Offers
    29

    Sat

  • SEA–BWI, 08/30/2026: From $228
    30

    Sun

  • SEA–BWI, 08/31/2026: From $94
    31

    Mon

  • SEA–BWI, 09/01/2026: From $94
    01

    Tue

    SEP

    • Range$94-$429

    *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:
    Seattle/Tacoma International Airport
    Arriving at:
    Balt./Wash. International Airport
    Average flight time:
    5 hours
    Distance:
    2335 miles

    Route Information

    150† Weekly flights
    • 1‡ Nonstop flight per day Monday through Friday

    † 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 Seattle/Tacoma to Baltimore/Washington is 5 hours.
    There are 150 weekly flights from Seattle/Tacoma to Baltimore/Washington on Southwest Airlines.
    Yes, Southwest flies nonstop from Seattle/Tacoma to Baltimore/Washington once per day from Monday through Friday.
    To find the lowest fares by day and time to fly Seattle/Tacoma to Baltimore/Washington with Southwest, check out our Low Fare Calendar.
    You can rent a car at Balt./Wash. International Airport book yours with your flight.
    Yes! Flights from Seattle/Tacoma to Baltimore/Washington—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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