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

Return flights

27 Apr - 29 Apr	easyJet	direct
26 Apr - 29 Apr	easyJet	direct
17 Apr - 20 Apr	easyJet	direct
22 Apr - 27 Apr	easyJet	direct
15 Apr - 19 Apr	easyJet	direct
24 Apr - 26 Apr	easyJet	direct
24 Apr - 27 Apr	easyJet	direct
08 Apr - 13 Apr	easyJet	direct
08 Apr - 12 Apr	easyJet
18 Apr - 26 Apr	Wizz Air Malta
23 Apr - 10 May	Wizz Air UK

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

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 April from 80€

Return flights