AirHint found the following cheapest return flights from Madrid (MAD) to Keflavik (KEF)
in August 2025 (see full year ).
Return flights
26 Aug
- 02 Sep
Iberia Express
$ 243
26 Aug
- 08 Sep
Iberia Express
$ 244
26 Aug
- 07 Sep
Iberia Express
$ 248
22 Aug
- 10 Sep
Fly Play
$ 276
direct
26 Aug
- 01 Sep
Iberia Express
$ 281
26 Aug
- 03 Sep
Iberia Express
$ 282
19 Aug
- 02 Sep
Scandinavian Airlines
$ 286
29 Aug
- 12 Sep
Fly Play
$ 289
direct
30 Aug
- 10 Sep
Ryanair
$ 298
24 Aug
- 05 Sep
Fly Play
$ 303
direct
26 Aug
- 31 Aug
Iberia Express
$ 312
19 Aug
- 26 Aug
Scandinavian Airlines
$ 314
20 Aug
- 26 Aug
Scandinavian Airlines
$ 318
22 Aug
- 27 Aug
Fly Play
$ 327
direct
19 Aug
- 27 Aug
Scandinavian Airlines
$ 338
04 Aug
- 18 Aug
easyJet
$ 339
22 Aug
- 26 Aug
easyJet
$ 340
21 Aug
- 26 Aug
Iberia Express
$ 343
18 Aug
- 23 Aug
Ryanair
$ 344
18 Aug
- 27 Aug
Ryanair
$ 346
Also check the deals for one-way flights from Madrid 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.