Cheap flights from Seattle to Eastern South Dakota from CA $305

View CA $305 flight on Mon, Aug. 25, 2025Opens in a new window

Popular airlines from Seattle to Eastern South Dakota

  • Alaska Airlines

    Alaska Airlines

  • American Airlines

    American Airlines

  • Delta

    Delta

  • United

    United

  • Frontier Airlines

    Frontier Airlines

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Cheap flights from Seattle (SEA) to Eastern South Dakota (FSD)

Prices were available within the past 7 days and start at CA $305 for one-way flights and CA $821 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Mon, May 25 - Sun, May 31
SEA
Seattle
FSD
Sioux Falls
CA $821 Roundtrip, found 6 days ago
CA $821
Roundtrip
found 6 days ago
Select American Airlines flight, departing Mon, May 25 from Seattle to Sioux Falls, returning Sun, May 31, priced at CA $821 found 6 days ago
American Airlines
Mon, May 25 - Sun, May 31
SEA
Seattle
FSD
Sioux Falls
CA $884 Roundtrip, found 6 days ago
CA $884
Roundtrip
found 6 days ago
Select American Airlines flight, departing Mon, May 25 from Seattle to Sioux Falls, returning Sun, May 31, priced at CA $884 found 6 days ago
Alaska Airlines
Mon, May 25 - Sun, May 31
SEA
Seattle
FSD
Sioux Falls
CA $891 Roundtrip, found 6 days ago
CA $891
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Mon, May 25 from Seattle to Sioux Falls, returning Sun, May 31, priced at CA $891 found 6 days ago
Delta
Mon, May 25 - Sun, May 31
SEA
Seattle
FSD
Sioux Falls
CA $912 Roundtrip, found 6 days ago
CA $912
Roundtrip
found 6 days ago
Select Delta flight, departing Mon, May 25 from Seattle to Sioux Falls, returning Sun, May 31, priced at CA $912 found 6 days ago
American Airlines
Mon, May 25 - Sun, May 31
SEA
Seattle
FSD
Sioux Falls
CA $917 Roundtrip, found 6 days ago
CA $917
Roundtrip
found 6 days ago
Select American Airlines flight, departing Mon, May 25 from Seattle to Sioux Falls, returning Sun, May 31, priced at CA $917 found 6 days ago
Alaska Airlines
Mon, May 25 - Sun, May 31
SEA
Seattle
FSD
Sioux Falls
CA $940 Roundtrip, found 6 days ago
CA $940
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Mon, May 25 from Seattle to Sioux Falls, returning Sun, May 31, priced at CA $940 found 6 days ago

Find the cheapest month to fly from Seattle (SEA) to Sioux Falls (FSD)

November is typically the cheapest month to fly

From CA $245 - CA $1,039 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.