Cheapest return flights from Los Angeles to Keflavik in December from $694

Best time to book flights for Los Angeles (LAX) to Keflavik (KEF) flights at AirHint

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

Return flights

01 Dec - 08 Dec British Airways
26 Dec - 06 Jan British Airways
18 Dec - 26 Dec British Airways
24 Dec - 02 Jan Alaska Airlines
23 Dec - 02 Jan Alaska Airlines
20 Dec - 28 Dec British Airways
14 Dec - 22 Dec British Airways
15 Dec - 23 Dec British Airways
16 Dec - 24 Dec British Airways
17 Dec - 25 Dec Alaska Airlines
22 Dec - 30 Dec British Airways
23 Dec - 31 Dec British Airways
21 Dec - 29 Dec British Airways
24 Dec - 01 Jan Lufthansa

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

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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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