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

Return flights

15 Apr - 23 Apr	Lufthansa
22 Apr - 30 Apr	Lufthansa
07 Apr - 15 Apr	Finnair
14 Apr - 22 Apr	Finnair
21 Apr - 29 Apr	Finnair
29 Apr - 07 May	Lufthansa
28 Apr - 06 May	Finnair
01 Apr - 09 Apr	Lufthansa
30 Apr - 07 May	Austrian Airlines
30 Apr - 08 May	Austrian Airlines
29 Apr - 06 May	KLM
23 Apr - 01 May	KLM
09 Apr - 17 Apr	Lufthansa
16 Apr - 24 Apr	Finnair
17 Apr - 21 Apr	Lufthansa
08 Apr - 16 Apr	Lufthansa
24 Apr - 02 May	KLM
25 Apr - 03 May	Air France
26 Apr - 04 May	Lufthansa
27 Apr - 05 May	KLM

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

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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Cheapest return flights from Los Angeles to Keflavik in April from $580

Return flights