Cheapest return flights from Edmonton to Seattle in September from $160

AirHint found the following cheapest return flights from Edmonton (YEG) to Seattle (SEA) in September 2025 (see full year).

Return flights

30 Sep - 23 Oct Alaska Airlines
29 Sep - 03 Oct Flair Airlines
23 Sep - 30 Sep WestJet
22 Sep - 07 Oct WestJet
26 Sep - 29 Sep WestJet
22 Sep - 08 Oct WestJet
25 Sep - 29 Sep WestJet
26 Sep - 13 Oct WestJet
26 Sep - 28 Sep WestJet
21 Sep - 28 Sep WestJet
22 Sep - 29 Sep Flair Airlines
22 Sep - 25 Sep Flair Airlines
21 Sep - 25 Sep WestJet
18 Sep - 22 Sep Flair Airlines
18 Sep - 21 Sep Flair Airlines

Also check the deals for one-way flights from Edmonton to Seattle in September.

Skyscanner

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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