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

Return flights

01 May - 10 May	Jet2
08 May - 10 May	Jet2
02 May - 10 May	easyJet
15 May - 17 May	Jet2
11 May - 17 May	Jet2
04 May - 10 May	Jet2
01 May - 04 May	Jet2
08 May - 11 May	Jet2
02 May - 11 May	easyJet
05 May - 10 May	Ryanair
25 May - 04 Jun	Jet2
01 May - 05 Jun	Jet2
27 May - 05 Jun	Jet2
02 May - 06 Jun	easyJet
26 May - 04 Jun	Ryanair
27 May - 03 Jun	Jet2
18 May - 03 Jun	Jet2
25 May - 03 Jun	Jet2
29 May - 05 Jun	Jet2
26 May - 05 Jun	Ryanair

Also check the deals for one-way flights from Reus 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 Reus to Keflavik in May from $287

Return flights