Cheapest return flights from Los Angeles to Keflavik in September from $640

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 September 2025 (see full year).

Return flights

09 Sep - 16 Sep jetBlue
24 Sep - 01 Oct jetBlue
08 Sep - 15 Sep jetBlue
25 Sep - 02 Oct Hawaiian Airlines
27 Sep - 04 Oct jetBlue
14 Sep - 21 Sep jetBlue
23 Sep - 30 Sep jetBlue
29 Sep - 07 Oct jetBlue
01 Sep - 08 Sep Sun Country Airlines
18 Sep - 25 Sep United

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

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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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