Cheap flights from Detroit to Northwest Washington

View AU$215 flight on Tue, 28 Oct. 2025Opens in a new window

Popular airlines from Detroit to Northwest Washington

  • Jetstar

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    Qantas Airways

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    Scoot

  • American Airlines

    American Airlines

  • Emirates

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  • United

    United

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Cheap Flights from Detroit (DTT) to Northwest Washington (SEA)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, 30 Aug. - Sat, 6 Sep.
DTW
Detroit
SEA
Seattle
AU$395 Return, found 6 days ago
AU$395
Return
found 6 days ago
Select Delta flight, departing Sat, 30 Aug. from Detroit to Seattle, returning Sat, 6 Sep., priced at AU$395 found 6 days ago
Delta
Sat, 30 Aug. - Sat, 6 Sep.
DTW
Detroit
SEA
Seattle
AU$410 Return, found 6 days ago
AU$410
Return
found 6 days ago
Select Delta flight, departing Sat, 30 Aug. from Detroit to Seattle, returning Sat, 6 Sep., priced at AU$410 found 6 days ago
Delta
Sat, 30 Aug. - Sat, 6 Sep.
DTW
Detroit
SEA
Seattle
AU$425 Return, found 6 days ago
AU$425
Return
found 6 days ago
Select Delta flight, departing Sat, 30 Aug. from Detroit to Seattle, returning Sat, 6 Sep., priced at AU$425 found 6 days ago
Alaska Airlines
Sat, 30 Aug. - Sat, 6 Sep.
DTW
Detroit
SEA
Seattle
AU$456 Return, found 6 days ago
AU$456
Return
found 6 days ago
Select Alaska Airlines flight, departing Sat, 30 Aug. from Detroit to Seattle, returning Sat, 6 Sep., priced at AU$456 found 6 days ago
American Airlines
Sat, 30 Aug. - Sat, 6 Sep.
DTW
Detroit
SEA
Seattle
AU$471 Return, found 6 days ago
AU$471
Return
found 6 days ago
Select American Airlines flight, departing Sat, 30 Aug. from Detroit to Seattle, returning Sat, 6 Sep., priced at AU$471 found 6 days ago
Delta
Thu, 4 Sep. - Thu, 11 Sep.
DTW
Detroit
SEA
Seattle
AU$490 Return, found 3 days ago
AU$490
Return
found 3 days ago
Select Delta flight, departing Thu, 4 Sep. from Detroit to Seattle, returning Thu, 11 Sep., priced at AU$490 found 3 days ago
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