Southwest® flights from Seattle/Tacoma to Baltimore/Washington from $209

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Low fares from Seattle/Tacoma to Baltimore/Washington

$

Seattle/Tacoma (SEA)to

Baltimore/Washington (BWI)
Depart: 11/11/2026

One-way

Basic

From
$209
Seen: 22 hrs ago

Seattle/Tacoma (SEA)to

Baltimore/Washington (BWI)
Depart: 10/31/2026

One-way

Basic

From
$209
Seen: 2 hrs ago

Seattle/Tacoma (SEA)to

Baltimore/Washington (BWI)
Depart: 11/03/2026

One-way

Basic

From
$209
Seen: 19 hrs ago

Seattle/Tacoma (SEA)to

Baltimore/Washington (BWI)
Depart: 11/18/2026

One-way

Basic

From
$209
Seen: 14 hrs ago

Seattle/Tacoma (SEA)to

Baltimore/Washington (BWI)
Depart: 11/14/2026

One-way

Basic

From
$209
Seen: 14 hrs ago

Seattle/Tacoma (SEA)to

Baltimore/Washington (BWI)
Depart: 10/24/2026

One-way

Basic

From
$219
Seen: 15 hrs ago

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Explore flights from Seattle/Tacoma to Baltimore/Washington

Oct 2026
From$209*
Seen: 2 hrs ago
One Way/Basic
Nov 2026
From$209*
Seen: 22 hrs ago
One Way/Basic
Dec 2026
From$219*
Seen: 20 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $209
cmp-daily-histogram-bars-legend-max-price-aria-label $327
Displaying fares for October-2026
  • SEA–BWI, 10/02/2026: From $327
    02

    Fri

    OCT

  • SEA–BWI, 10/03/2026: From $281
    03

    Sat

  • SEA–BWI, 10/04/2026: From $327
    04

    Sun

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    05

    Mon

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    06

    Tue

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    07

    Wed

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    08

    Thu

  • SEA–BWI, 10/09/2026: From $327
    09

    Fri

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    10

    Sat

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

    Sun

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    12

    Mon

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

    Tue

  • SEA–BWI, 10/14/2026: From $281
    14

    Wed

  • SEA–BWI, 10/15/2026: From $327
    15

    Thu

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    16

    Fri

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    17

    Sat

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    18

    Sun

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    19

    Mon

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    20

    Tue

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    21

    Wed

  • SEA–BWI, 10/22/2026: From $219
    22

    Thu

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

    Fri

  • SEA–BWI, 10/24/2026: From $219
    24

    Sat

  • SEA–BWI, 10/25/2026: From $244
    25

    Sun

  • SEA–BWI, 10/26/2026: From $219
    26

    Mon

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

    Tue

  • SEA–BWI: cmp-view-offers-disclaimer. Find Offers
    28

    Wed

  • SEA–BWI, 10/29/2026: From $219
    29

    Thu

  • SEA–BWI, 10/30/2026: From $237
    30

    Fri

  • SEA–BWI, 10/31/2026: From $209
    31

    Sat

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    01

    Sun

    NOV

    • Range$209-$327

    *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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