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

Return flights

09 Mar - 31 Mar	Frontier Airlines
11 Mar - 16 Mar	Frontier Airlines
23 Mar - 30 Mar	Frontier Airlines
04 Mar - 08 Mar	Hawaiian Airlines
03 Mar - 10 Mar	Hawaiian Airlines
12 Mar - 17 Mar	Frontier Airlines
10 Mar - 25 Mar	Alaska Airlines
10 Mar - 01 Apr	Alaska Airlines
10 Mar - 20 Mar	Alaska Airlines
11 Mar - 03 Apr	Alaska Airlines
03 Mar - 28 Mar	Alaska Airlines

Also check the deals for one-way flights from Washington 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 Washington to Vancouver in March from $278

Return flights