AirHint found the following cheapest return flights from San Diego (SAN) to Vancouver (YVR) in December 2025 (see full year).

Return flights

30 Dec - 07 Jan	Frontier Airlines
24 Dec - 30 Dec	Frontier Airlines
25 Dec - 31 Dec	Frontier Airlines
24 Dec - 31 Dec	Frontier Airlines
24 Dec - 01 Jan	Frontier Airlines
29 Dec - 01 Jan	Hawaiian Airlines
23 Dec - 30 Dec	Frontier Airlines
21 Dec - 30 Dec	Hawaiian Airlines
18 Dec - 22 Dec	Frontier Airlines
26 Dec - 31 Dec	Frontier Airlines
17 Dec - 24 Dec	Hawaiian Airlines
19 Dec - 22 Dec	Frontier Airlines
22 Dec - 25 Dec	Alaska Airlines

Also check the deals for one-way flights from San Diego to Vancouver in December.

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 San Diego to Vancouver in December from $370

Return flights