AirHint found the following cheapest return flights from London (LGW) to Keflavik (KEF) in June 2026 (see full year).

Return flights

09 Jun - 17 Jun	easyJet
12 Jun - 17 Jun	easyJet
10 Jun - 17 Jun	easyJet
25 Jun - 05 Jul	Icelandair	direct
13 Jun - 17 Jun	easyJet
03 Jun - 13 Jun	easyJet
01 Jun - 04 Jun	Icelandair	direct
15 Jun - 17 Jun	easyJet
01 Jun - 07 Jun	Icelandair	direct
10 Jun - 20 Jun	easyJet
12 Jun - 22 Jun	easyJet
22 Jun - 04 Jul	easyJet
29 Jun - 04 Jul	easyJet
22 Jun - 04 Jul	Icelandair	direct
15 Jun - 13 Jul	Icelandair	direct
29 Jun - 04 Jul	Icelandair	direct
27 Jun - 04 Jul	easyJet
25 Jun - 09 Jul	Wizz Air UK
27 Jun - 04 Jul	Icelandair	direct

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.

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Cheapest return flights from London to Keflavik in June from $258

Return flights