Cheapest return flights from Ljubljana to Keflavik in May from $327

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

Return flights

14 May - 19 May Lufthansa
16 May - 24 May Lufthansa
18 May - 31 May Lufthansa

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

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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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