AirHint found the following cheapest return flights from London (LHR) to Keflavik (KEF)
in April 2025 (see full year ).
Return flights
23 Apr
- 30 Apr
Icelandair
$ 161
direct
25 Apr
- 28 Apr
Icelandair
$ 169
direct
23 Apr
- 29 Apr
Icelandair
$ 175
direct
24 Apr
- 30 Apr
Icelandair
$ 182
direct
22 Apr
- 28 Apr
Icelandair
$ 182
direct
24 Apr
- 28 Apr
Icelandair
$ 182
direct
14 Apr
- 23 Apr
Scandinavian Airlines
$ 182
22 Apr
- 29 Apr
Icelandair
$ 183
direct
26 Apr
- 28 Apr
Icelandair
$ 189
direct
25 Apr
- 30 Apr
Icelandair
$ 189
direct
27 Apr
- 04 May
British Airways
$ 220
direct
26 Apr
- 15 May
Icelandair
$ 229
29 Apr
- 06 May
Icelandair
$ 234
direct
23 Apr
- 08 May
Icelandair
$ 234
direct
29 Apr
- 11 May
Icelandair
$ 235
direct
27 Apr
- 01 May
British Airways
$ 237
direct
26 Apr
- 04 May
British Airways
$ 239
direct
30 Apr
- 10 May
Icelandair
$ 240
direct
30 Apr
- 06 May
Icelandair
$ 240
direct
30 Apr
- 08 May
SWISS
$ 240
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.