Cheapest one-way flights from London to Keflavik in March from $90

Best time to book flights for London (LHR) to Keflavik (KEF) flights at AirHint

AirHint found the following cheapest one-way flights from London (LHR) to Keflavik (KEF) in March 2025 (see full year).

One-Way flights

25 Mar British Airways
30 Mar British Airways direct
29 Mar British Airways direct
04 Mar British Airways
28 Mar British Airways direct
19 Mar Icelandair direct
03 Mar British Airways direct
05 Mar British Airways direct
20 Mar Icelandair direct
25 Mar Icelandair direct

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

Skyscanner

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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