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

Return flights

15 Jan - 25 Jan	Alaska Airlines
27 Jan - 31 Jan	Alaska Airlines
15 Jan - 18 Jan	Alaska Airlines
10 Jan - 12 Jan	Alaska Airlines
30 Jan - 01 Feb	Alaska Airlines
13 Jan - 15 Jan	Alaska Airlines
15 Jan - 25 Jan	Alaska Airlines	direct
27 Jan - 31 Jan	Delta	direct
10 Jan - 12 Jan	Delta	direct
13 Jan - 15 Jan	Delta	direct
15 Jan - 18 Jan	Delta	direct
30 Jan - 04 Feb	Delta	direct
30 Jan - 01 Feb	Air Canada	direct

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

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 January from $122

Return flights