Cheapest return flights from London to Keflavik in October from $112

Best time to book flights for London (LON) to Keflavik (KEF) flights at AirHint

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

Return flights

08 Oct - 15 Oct easyJet direct
12 Oct - 16 Oct Fly Play direct
12 Oct - 15 Oct easyJet direct
31 Oct - 04 Nov easyJet direct
30 Oct - 04 Nov easyJet direct
08 Oct - 16 Oct Fly Play direct
13 Oct - 16 Oct Fly Play direct
14 Oct - 18 Oct Fly Play direct
08 Oct - 14 Oct Fly Play direct
12 Oct - 22 Oct easyJet direct
01 Oct - 08 Oct Fly Play direct
01 Oct - 07 Oct Fly Play direct
31 Oct - 03 Nov easyJet direct
27 Oct - 08 Nov easyJet
28 Oct - 04 Nov easyJet direct
27 Oct - 06 Nov Ryanair
28 Oct - 03 Nov easyJet direct
30 Oct - 11 Nov Icelandair direct
31 Oct - 02 Nov easyJet direct
25 Oct - 02 Nov easyJet

Also check the deals for one-way flights from London 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.

Book a cheap hotel in Keflavik

Cheap car rent in Keflavik