AirHint found the following cheapest return flights from Lyon (LYS) to Keflavik (KEF) in May 2026 (see full year).

Return flights

09 May - 19 May	Lufthansa
09 May - 16 May	Lufthansa
31 May - 08 Jun	KLM
05 May - 12 May	easyJet
10 May - 06 Jun	easyJet
09 May - 12 May	easyJet
04 May - 12 May	Air France
12 May - 19 May	easyJet
11 May - 15 May	Lufthansa
01 May - 10 May	easyJet
30 May - 13 Jun	Air France
25 May - 01 Jun	Air France

Also check the deals for one-way flights from Lyon to Keflavik in May.

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 Lyon to Keflavik in May from 215€

Return flights