AirHint found the following cheapest return flights from London (STN) to Keflavik (KEF) in November 2025 (see full year).

Return flights

11 Nov - 14 Nov	easyJet
04 Nov - 18 Nov	easyJet
18 Nov - 21 Nov	easyJet
12 Nov - 18 Nov	easyJet
04 Nov - 07 Nov	easyJet
07 Nov - 14 Nov	easyJet
04 Nov - 11 Nov	easyJet
05 Nov - 11 Nov	easyJet
17 Nov - 27 Nov	Ryanair
17 Nov - 18 Nov	Ryanair
28 Nov - 02 Dec	easyJet
26 Nov - 05 Dec	Ryanair
30 Nov - 04 Dec	Ryanair
30 Nov - 05 Dec	Ryanair
30 Nov - 07 Dec	Ryanair
27 Nov - 01 Dec	Ryanair
29 Nov - 06 Dec	Ryanair
25 Nov - 11 Dec	easyJet
26 Nov - 01 Dec	Ryanair
24 Nov - 01 Dec	Ryanair

Also check the deals for one-way flights from London to Keflavik in November.

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 London to Keflavik in November from $140

Return flights