AirHint found the following cheapest return flights from London (LHR) to Keflavik (KEF)
in August 2025 (see full year ).
Return flights
28 Aug
- 10 Sep
Scandinavian Airlines
$ 193
21 Aug
- 27 Aug
Scandinavian Airlines
$ 194
21 Aug
- 03 Sep
Scandinavian Airlines
$ 194
20 Aug
- 26 Aug
Scandinavian Airlines
$ 215
24 Aug
- 28 Aug
British Airways
$ 220
direct
24 Aug
- 27 Aug
British Airways
$ 225
21 Aug
- 02 Sep
Scandinavian Airlines
$ 229
24 Aug
- 26 Aug
British Airways
$ 232
18 Aug
- 20 Aug
Scandinavian Airlines
$ 234
29 Aug
- 05 Sep
Scandinavian Airlines
$ 235
20 Aug
- 03 Sep
Scandinavian Airlines
$ 238
21 Aug
- 26 Aug
Scandinavian Airlines
$ 239
31 Aug
- 07 Sep
British Airways
$ 242
direct
24 Aug
- 03 Sep
British Airways
$ 245
direct
22 Aug
- 27 Aug
Scandinavian Airlines
$ 249
29 Aug
- 06 Sep
Scandinavian Airlines
$ 249
25 Aug
- 06 Sep
Scandinavian Airlines
$ 250
24 Aug
- 29 Aug
British Airways
$ 254
direct
28 Aug
- 10 Sep
British Airways
$ 258
direct
22 Aug
- 27 Aug
Icelandair
$ 266
direct
Also check the deals for one-way flights from London to Keflavik in August .
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.