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

Return flights

14 Jun - 17 Jun	easyJet	direct
03 Jun - 10 Jun	easyJet	direct
10 Jun - 24 Jun	easyJet	direct
14 Jun - 21 Jun	easyJet	direct
14 Jun - 28 Jun	easyJet	direct
12 Jun - 24 Jun	easyJet
07 Jun - 16 Jun	easyJet
09 Jun - 14 Jun	easyJet
21 Jun - 30 Jun	easyJet
04 Jun - 10 Jun	Wizz Air
28 Jun - 09 Jul	easyJet
30 Jun - 02 Jul	easyJet
25 Jun - 02 Jul	Wizz Air UK

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 98€

Return flights