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

Return flights

11 Jan - 15 Jan	Ryanair
13 Jan - 18 Jan	Ryanair
23 Jan - 30 Jan	Ryanair
09 Jan - 11 Jan	Ryanair
07 Jan - 11 Jan	Ryanair
05 Jan - 11 Jan	Ryanair
18 Jan - 24 Jan	easyJet
04 Jan - 08 Jan	Ryanair
03 Jan - 07 Jan	Ryanair
02 Jan - 08 Jan	British Airways

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.

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Cheapest return flights from Frankfurt to Keflavik in January from 194€

Return flights