Cheapest return flights from Porto to Keflavik in May from 225€

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

Return flights

02 May - 12 May easyJet
11 May - 18 May Ryanair
21 May - 24 May Ryanair
02 May - 06 May Ryanair
30 May - 10 Jun KLM
30 May - 02 Jun Transavia France
01 May - 12 May Norwegian
17 May - 23 May TAP
20 May - 03 Jun easyJet
21 May - 28 May Ryanair
15 May - 22 May Norwegian

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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