Cheapest return flights from Seattle to Vancouver in September from $326

AirHint found the following cheapest return flights from Seattle (SEA) to Vancouver (YVR) in September 2026 (see full year).

Return flights

05 Sep - 12 Sep Alaska Airlines direct
14 Sep - 15 Sep Harbour Air direct
05 Sep - 15 Sep Harbour Air direct

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

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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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