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

Return flights

15 Oct - 26 Oct	easyJet
21 Oct - 26 Oct	easyJet
15 Oct - 26 Oct	Jet2	direct
25 Oct - 28 Oct	easyJet
30 Oct - 04 Nov	easyJet
24 Oct - 26 Oct	Ryanair
30 Oct - 02 Nov	easyJet
30 Oct - 04 Nov	easyJet	direct
15 Oct - 19 Oct	easyJet
08 Oct - 12 Oct	easyJet
23 Oct - 27 Oct	easyJet
08 Oct - 12 Oct	Jet2	direct
15 Oct - 19 Oct	Jet2	direct
31 Oct - 02 Nov	easyJet
30 Oct - 02 Nov	easyJet	direct

Also check the deals for one-way flights from Bristol 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 Bristol to Keflavik in October from 133€

Return flights