Cheapest return flights from Belfast to Keflavik in October from $191

AirHint found the following cheapest return flights from Belfast (BFS) to Keflavik (KEF) in October 2025 (see full year).

Return flights

09 Oct - 14 Oct easyJet
31 Oct - 03 Nov easyJet
30 Oct - 03 Nov easyJet
06 Oct - 08 Oct easyJet
04 Oct - 08 Oct easyJet
01 Oct - 06 Oct easyJet
01 Oct - 04 Oct Ryanair
30 Oct - 02 Nov easyJet
20 Oct - 25 Oct Ryanair
20 Oct - 27 Oct easyJet
25 Oct - 01 Nov Ryanair

Also check the deals for one-way flights from Belfast to Keflavik in October.

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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