Cheapest return flights from Los Angeles to Keflavik in December from $602

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

09 Dec - 16 Dec British Airways
10 Dec - 17 Dec British Airways
11 Dec - 18 Dec British Airways
12 Dec - 19 Dec British Airways
16 Dec - 23 Dec Lufthansa
14 Dec - 21 Dec British Airways
17 Dec - 24 Dec Lufthansa
13 Dec - 20 Dec British Airways
18 Dec - 25 Dec Lufthansa
15 Dec - 22 Dec Icelandair

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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