Cheapest return LAX–KEF flights, October

AirHint found the following cheapest return flights from Los Angeles (LAX) to Keflavik (KEF) in October 2026 (see full year).

Return flights

08 Oct - 15 Oct Southwest Airlines
28 Oct - 04 Nov Frontier Airlines
29 Oct - 05 Nov Frontier Airlines
31 Oct - 07 Nov Frontier Airlines
26 Oct - 02 Nov Alaska Airlines
17 Oct - 24 Oct Frontier Airlines
27 Oct - 03 Nov Frontier Airlines
18 Oct - 25 Oct Frontier Airlines
30 Oct - 06 Nov Frontier Airlines
30 Oct - 08 Nov Alaska Airlines
21 Oct - 08 Nov Alaska Airlines
11 Oct - 16 Oct Alaska Airlines
07 Oct - 18 Oct Frontier Airlines

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

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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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