AirHint found the following cheapest return flights from London (LHR) to Keflavik (KEF)
in January 2026 (see full year ).
Return flights
13 Jan
- 20 Jan
British Airways
$ 147
direct
14 Jan
- 18 Jan
British Airways
$ 150
direct
10 Jan
- 16 Jan
British Airways
$ 150
direct
19 Jan
- 21 Jan
British Airways
$ 153
direct
03 Jan
- 09 Jan
British Airways
$ 153
direct
16 Jan
- 18 Jan
British Airways
$ 154
direct
02 Jan
- 09 Jan
British Airways
$ 155
direct
03 Jan
- 31 Jan
British Airways
$ 158
direct
10 Jan
- 17 Jan
British Airways
$ 158
direct
08 Jan
- 11 Jan
Icelandair
$ 177
direct
29 Jan
- 03 Feb
Icelandair
$ 179
direct
Also check the deals for one-way flights from London to Keflavik in January .
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.