AirHint found the following cheapest return flights from London (LON) to Keflavik (KEF)
in August 2025 (see full year ).
Return flights
31 Aug
- 07 Sep
easyJet
$ 113
direct
10 Aug
- 13 Aug
easyJet
$ 146
direct
31 Aug
- 03 Sep
easyJet
$ 146
30 Aug
- 07 Sep
Fly Play
$ 156
direct
31 Aug
- 06 Sep
easyJet
$ 160
direct
31 Aug
- 03 Sep
easyJet
$ 160
direct
22 Aug
- 04 Sep
Fly Play
$ 164
direct
27 Aug
- 02 Sep
Fly Play
$ 164
direct
28 Aug
- 03 Sep
Fly Play
$ 164
direct
29 Aug
- 04 Sep
Fly Play
$ 164
direct
30 Aug
- 05 Sep
Fly Play
$ 164
direct
10 Aug
- 20 Aug
easyJet
$ 170
direct
18 Aug
- 23 Aug
Scandinavian Airlines
$ 184
24 Aug
- 31 Aug
easyJet
$ 185
direct
01 Aug
- 06 Aug
Fly Play
$ 188
direct
01 Aug
- 05 Aug
Fly Play
$ 188
direct
01 Aug
- 03 Aug
Fly Play
$ 188
direct
20 Aug
- 24 Aug
Fly Play
$ 189
direct
05 Aug
- 08 Aug
Fly Play
$ 197
direct
20 Aug
- 30 Aug
Scandinavian Airlines
$ 197
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.