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

Return flights

29 Mar - 04 Apr	WestJet
08 Mar - 05 Apr	WestJet
05 Mar - 09 Mar	Alaska Airlines
29 Mar - 04 Apr	Air Canada	direct
05 Mar - 09 Mar	Air Canada	direct
27 Mar - 04 Apr	WestJet
27 Mar - 03 Apr	WestJet
08 Mar - 05 Apr	Delta	direct
27 Mar - 03 Apr	Air Canada	direct
27 Mar - 04 Apr	Air Canada	direct
27 Mar - 28 Mar	Harbour Air	direct
27 Mar - 31 Mar	Harbour Air	direct
27 Mar - 05 Apr	Harbour Air	direct
27 Mar - 01 Apr	Harbour Air	direct

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

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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Cheapest return flights from Seattle to Vancouver in March from 90€

Return flights