AirHint found the following cheapest return flights from Frankfurt (FRA) to Keflavik (KEF) in January 2026 (see full year).

Return flights

19 Jan - 30 Jan	Ryanair
12 Jan - 15 Jan	Ryanair
12 Jan - 20 Jan	Ryanair
05 Jan - 08 Jan	Ryanair
30 Jan - 06 Feb	Ryanair
06 Jan - 10 Jan	Ryanair
24 Jan - 27 Jan	Ryanair
17 Jan - 24 Jan	Ryanair
12 Jan - 18 Jan	Ryanair
11 Jan - 16 Jan	Ryanair
28 Jan - 31 Jan	Ryanair
31 Jan - 02 Feb	Scandinavian Airlines
29 Jan - 02 Feb	Scandinavian Airlines
27 Jan - 01 Feb	Scandinavian Airlines
30 Jan - 08 Feb	Scandinavian Airlines
27 Jan - 01 Feb	Lufthansa	direct
30 Jan - 06 Feb	Lufthansa	direct
30 Jan - 08 Feb	Lufthansa	direct
19 Jan - 02 Feb	Scandinavian Airlines
20 Jan - 01 Feb	Lufthansa

Also check the deals for one-way flights from Frankfurt 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.

Book a cheap hotel in Keflavik

Cheap car rent in Keflavik

Cheapest return flights from Frankfurt to Keflavik in January from 171€

Return flights