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

Return flights

21 Oct - 04 Nov	Icelandair	direct
28 Oct - 31 Oct	Icelandair	direct
28 Oct - 04 Nov	Icelandair	direct
29 Oct - 01 Nov	Icelandair	direct
28 Oct - 02 Nov	Icelandair	direct
07 Oct - 10 Oct	easyJet
21 Oct - 28 Oct	Icelandair
05 Oct - 10 Oct	easyJet
04 Oct - 10 Oct	easyJet
07 Oct - 14 Oct	easyJet
09 Oct - 14 Oct	easyJet
21 Oct - 28 Oct	Icelandair	direct
08 Oct - 14 Oct	easyJet
04 Oct - 08 Oct	easyJet
30 Oct - 02 Nov	Icelandair	direct

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

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 Glasgow to Keflavik in October from 147€

Return flights