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

Return flights

03 Jun - 16 Jun	Icelandair	direct
03 Jun - 10 Jun	easyJet
08 Jun - 16 Jun	Icelandair	direct
20 Jun - 27 Jun	Icelandair	direct
23 Jun - 30 Jun	Icelandair	direct
24 Jun - 30 Jun	Icelandair	direct
02 Jun - 06 Jun	Icelandair	direct
16 Jun - 20 Jun	Icelandair	direct
27 Jun - 30 Jun	Icelandair	direct
07 Jun - 20 Jun	Icelandair	direct
20 Jun - 06 Jul	Icelandair	direct
29 Jun - 03 Jul	Icelandair	direct
10 Jun - 10 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 215€

Return flights