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

Return flights

29 Jun - 24 Jul	Wizz Air Malta
19 Jun - 26 Jun	SWISS
18 Jun - 24 Jun	SWISS
16 Jun - 24 Jun	SWISS
19 Jun - 24 Jun	SWISS
25 Jun - 08 Jul	easyJet
11 Jun - 19 Jun	SWISS
12 Jun - 17 Jun	Wizz Air Malta
14 Jun - 19 Jun	Wizz Air Malta
11 Jun - 24 Jun	Wizz Air
30 Jun - 08 Jul	Vueling Airlines
07 Jun - 12 Jun	Wizz Air Malta
30 Jun - 06 Jul	Wizz Air Malta
10 Jun - 17 Jun	easyJet
29 Jun - 06 Jul	Wizz Air Malta
30 Jun - 18 Jul	SWISS
29 Jun - 02 Jul	Wizz Air Malta
28 Jun - 01 Jul	Wizz Air
25 Jun - 02 Jul	Wizz Air Malta
23 Jun - 02 Jul	Vueling Airlines

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

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

Cheapest return flights from London to Keflavik in June from $260

Return flights