AirHint found the following cheapest return flights from London (LON) to Keflavik (KEF)
in May 2025 (see full year ).
Return flights
28 May
- 29 May
easyJet
$ 188
28 May
- 03 Jun
easyJet
$ 207
direct
29 May
- 03 Jun
Fly Play
$ 209
direct
28 May
- 11 Jun
easyJet
$ 215
28 May
- 30 May
easyJet
$ 216
28 May
- 05 Jun
easyJet
$ 224
28 May
- 04 Jun
easyJet
$ 224
28 May
- 02 Jun
easyJet
$ 227
direct
23 May
- 24 May
Fly Play
$ 228
direct
28 May
- 11 Jun
easyJet
$ 228
direct
23 May
- 25 May
Fly Play
$ 229
direct
29 May
- 30 May
Scandinavian Airlines
$ 232
28 May
- 04 Jun
easyJet
$ 233
direct
28 May
- 09 Jun
easyJet
$ 237
29 May
- 05 Jun
Fly Play
$ 240
direct
27 May
- 29 May
Scandinavian Airlines
$ 247
28 May
- 31 May
Fly Play
$ 257
direct
27 May
- 30 May
Ryanair
$ 269
29 May
- 30 May
Fly Play
$ 270
direct
29 May
- 31 May
Fly Play
$ 270
direct
Also check the deals for one-way flights from London to Keflavik in May .
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.