Cheapest return flights from London to Keflavik in June from $121

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 June 2025 (see full year).

Return flights

05 Jun - 11 Jun Fly Play direct
04 Jun - 11 Jun Fly Play direct
06 Jun - 11 Jun Fly Play direct
04 Jun - 12 Jun Fly Play direct
05 Jun - 12 Jun Fly Play direct
05 Jun - 15 Jun Fly Play direct
04 Jun - 08 Jun Fly Play direct
06 Jun - 08 Jun Fly Play direct
03 Jun - 12 Jun Fly Play direct
02 Jun - 11 Jun Fly Play direct
12 Jun - 10 Jul Fly Play direct
30 Jun - 05 Jul Fly Play direct
25 Jun - 02 Jul Fly Play direct
24 Jun - 02 Jul Fly Play direct
30 Jun - 06 Jul Fly Play direct
30 Jun - 09 Jul Fly Play direct
22 Jun - 06 Jul Fly Play direct
29 Jun - 03 Jul Fly Play direct
24 Jun - 17 Jul Fly Play direct
30 Jun - 04 Jul Fly Play direct

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

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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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