Cheapest return flights from Portland to Los Angeles in December from $68

AirHint found the following cheapest return flights from Portland (PDX) to Los Angeles (LAX) in December 2025 (see full year).

Return flights

13 Dec - 15 Dec Frontier Airlines direct
11 Dec - 13 Dec Frontier Airlines direct
08 Dec - 13 Dec Frontier Airlines direct
13 Dec - 18 Dec Frontier Airlines direct
15 Dec - 18 Dec Frontier Airlines direct
12 Dec - 15 Dec Frontier Airlines direct
13 Dec - 25 Dec Frontier Airlines direct
15 Dec - 21 Dec Frontier Airlines direct
23 Dec - 25 Dec Frontier Airlines direct
14 Dec - 18 Dec Frontier Airlines direct
23 Dec - 01 Jan Frontier Airlines direct
18 Dec - 01 Jan Frontier Airlines direct
31 Dec - 05 Jan Alaska Airlines direct
12 Dec - 05 Jan Frontier Airlines
29 Dec - 01 Jan Alaska Airlines direct
12 Dec - 05 Jan Alaska Airlines direct
14 Dec - 04 Jan Frontier Airlines direct
25 Dec - 04 Jan Frontier Airlines direct
30 Dec - 04 Jan Frontier Airlines direct
31 Dec - 02 Jan Hawaiian Airlines direct

Also check the deals for one-way flights from Portland to Los Angeles in December.

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