Cheapest return flights from Porto to Keflavik in May from 217€

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

Return flights

06 May - 12 May SWISS
05 May - 12 May Ryanair
15 May - 26 May Ryanair
13 May - 17 May Ryanair
01 May - 08 May Ryanair
21 May - 28 May Ryanair
08 May - 12 May Ryanair
17 May - 24 May TAP
26 May - 07 Jun Ryanair
01 May - 03 May Ryanair
23 May - 30 May Ryanair
30 May - 06 Jun TAP
30 May - 04 Jun Ryanair
30 May - 10 Jun easyJet

Also check the deals for one-way flights from Porto 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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