AirHint found the following cheapest return flights from Denver (DEN) to Vancouver (YVR) in October 2025 (see full year).

Return flights

03 Oct - 05 Oct	WestJet
12 Oct - 14 Oct	WestJet
12 Oct - 19 Oct	WestJet
09 Oct - 12 Oct	Frontier Airlines
13 Oct - 20 Oct	WestJet
15 Oct - 22 Oct	Frontier Airlines
10 Oct - 17 Oct	WestJet
30 Oct - 02 Nov	Frontier Airlines
23 Oct - 26 Oct	Frontier Airlines
09 Oct - 16 Oct	Frontier Airlines
30 Oct - 01 Nov	Frontier Airlines
27 Oct - 02 Nov	Frontier Airlines
16 Oct - 18 Oct	Frontier Airlines
27 Oct - 02 Nov	Air Canada	direct
30 Oct - 01 Nov	Air Canada	direct
30 Oct - 02 Nov	Air Canada	direct

Also check the deals for one-way flights from Denver to Vancouver in October.

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 Denver to Vancouver in October from $166

Return flights