AirHint found the following cheapest one-way flights from London (LTN) to Keflavik (KEF) in March 2026 (see full year).

One-Way flights

24 Mar	easyJet	direct
11 Mar	easyJet	direct
08 Mar	easyJet	direct
10 Mar	easyJet	direct
15 Mar	easyJet	direct
05 Mar	easyJet	direct
12 Mar	easyJet	direct
25 Mar	easyJet	direct
30 Mar	easyJet	direct

Also check the deals for return flights from London to Keflavik in March.

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 one-way flights from London to Keflavik in March from 46€

One-Way flights