Cheapest return flights from Southampton to Keflavik in May from 397€

Best time to book flights for Southampton (SOU) to Keflavik (KEF) flights at AirHint

AirHint found the following cheapest return flights from Southampton (SOU) to Keflavik (KEF) in May 2025 (see full year).

Return flights

09 May - 12 May easyJet
26 May - 29 May Aer Lingus

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

Skyscanner

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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