AirHint found the following cheapest return flights from Ontario (ONT) to Valencia (VLC) in December 2025 (see full year).

Return flights

24 Dec - 01 Jan	Iberia
15 Dec - 08 Jan	Iberia
12 Dec - 19 Dec	Iberia
23 Dec - 01 Jan	British Airways
24 Dec - 31 Dec	Iberia
25 Dec - 31 Dec	Iberia
23 Dec - 31 Dec	Iberia
25 Dec - 02 Jan	Iberia
24 Dec - 02 Jan	Iberia
23 Dec - 02 Jan	British Airways
19 Dec - 26 Dec	British Airways
04 Dec - 11 Dec	British Airways

Also check the deals for one-way flights from Ontario to Valencia 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.

Book a cheap hotel in Valencia

Cheap car rent in Valencia

Cheapest return flights from Ontario to Valencia in December from $1456

Return flights