Cheapest return flights from Los Angeles to Keflavik in September from $438

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 Spirit Airlines
07 Sep - 14 Sep Spirit Airlines
12 Sep - 19 Sep Spirit Airlines
24 Sep - 01 Oct Spirit Airlines
02 Sep - 09 Sep Spirit Airlines
17 Sep - 24 Sep Spirit Airlines
26 Sep - 30 Sep Spirit Airlines
23 Sep - 30 Sep Spirit Airlines
03 Sep - 10 Sep Hawaiian Airlines
03 Sep - 12 Sep Air Canada
03 Sep - 06 Sep jetBlue

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

Skyscanner

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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