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

Return flights

18 Jan - 22 Jan	easyJet
12 Jan - 19 Jan	easyJet
20 Jan - 02 Feb	Wizz Air UK
20 Jan - 25 Jan	Wizz Air UK
19 Jan - 25 Jan	Wizz Air UK
08 Jan - 13 Jan	SKY express
15 Jan - 29 Jan	SKY express
12 Jan - 16 Jan	easyJet
07 Jan - 09 Jan	Ryanair
02 Jan - 07 Jan	easyJet

Also check the deals for one-way flights from Athens 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 Athens to Keflavik in January from 162€

Return flights