Southwest® flights from Raleigh/Durham to Seattle/Tacoma from $175

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Low fares from Raleigh/Durham to Seattle/Tacoma

$

Raleigh/Durham (RDU)to

Seattle/Tacoma (SEA)
Depart: 09/11/2026

One-way

Basic

From
$175
Seen: 11 hrs ago

Raleigh/Durham (RDU)to

Seattle/Tacoma (SEA)
Depart: 09/23/2026

One-way

Basic

From
$185
Seen: 21 hrs ago

Raleigh/Durham (RDU)to

Seattle/Tacoma (SEA)
Depart: 10/10/2026

One-way

Basic

From
$185
Seen: 16 hrs ago

Raleigh/Durham (RDU)to

Seattle/Tacoma (SEA)
Depart: 09/08/2026

One-way

Basic

From
$185
Seen: 16 hrs ago

Raleigh/Durham (RDU)to

Seattle/Tacoma (SEA)
Depart: 09/05/2026

One-way

Basic

From
$185
Seen: 13 hrs ago

Raleigh/Durham (RDU)to

Seattle/Tacoma (SEA)
Depart: 09/21/2026

One-way

Basic

From
$185
Seen: 7 hrs ago

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Explore flights from Raleigh/Durham to Seattle/Tacoma

Aug 2026
From$190*
Seen: 5 minutes ago
One Way/Basic
Sep 2026
From$175*
Seen: 11 hrs ago
One Way/Basic
Oct 2026
From$185*
Seen: 16 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $190
cmp-daily-histogram-bars-legend-max-price-aria-label $534
Displaying fares for August-2026
  • RDU–SEA, 08/03/2026: From $534
    03

    Mon

    AUG

  • RDU–SEA, 08/04/2026: From $534
    04

    Tue

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    05

    Wed

  • RDU–SEA, 08/06/2026: From $534
    06

    Thu

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    07

    Fri

  • RDU–SEA, 08/08/2026: From $534
    08

    Sat

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    09

    Sun

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    10

    Mon

  • RDU–SEA, 08/11/2026: From $414
    11

    Tue

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    12

    Wed

  • RDU–SEA, 08/13/2026: From $414
    13

    Thu

  • RDU–SEA, 08/14/2026: From $414
    14

    Fri

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    15

    Sat

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    16

    Sun

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    17

    Mon

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    18

    Tue

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    19

    Wed

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    20

    Thu

  • RDU–SEA, 08/21/2026: From $304
    21

    Fri

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    22

    Sat

  • RDU–SEA, 08/23/2026: From $234
    23

    Sun

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    24

    Mon

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    25

    Tue

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    26

    Wed

  • RDU–SEA, 08/27/2026: From $190
    27

    Thu

  • RDU–SEA, 08/28/2026: From $215
    28

    Fri

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    29

    Sat

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    30

    Sun

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    31

    Mon

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    01

    Tue

    SEP

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    02

    Wed

    • Range$190-$534

    *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:
    Raleigh/Durham Airport
    Arriving at:
    Seattle/Tacoma International Airport
    Distance:
    2354 miles

    Route Information

    67† Weekly flights

    † 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

    There are 67 weekly flights from Raleigh/Durham to Seattle/Tacoma on Southwest Airlines.
    To find the lowest fares by day and time to fly Raleigh/Durham to Seattle/Tacoma with Southwest, check out our Low Fare Calendar.
    You can rent a car at Seattle/Tacoma International Airport book yours with your flight.
    Yes! Flights from Raleigh/Durham to Seattle/Tacoma—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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