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

Return flights

16 Jan - 23 Jan	Ryanair
26 Jan - 01 Feb	Wizz Air Malta
17 Jan - 22 Jan	Wizz Air Malta
31 Jan - 07 Feb	Wizz Air Malta
20 Jan - 28 Jan	Wizz Air Malta
30 Jan - 02 Feb	Ryanair
20 Jan - 30 Jan	Ryanair
12 Jan - 16 Jan	Ryanair
11 Jan - 16 Jan	Ryanair
08 Jan - 16 Jan	Ryanair
09 Jan - 16 Jan	Ryanair
12 Jan - 15 Jan	Ryanair
28 Jan - 02 Feb	Wizz Air Malta
28 Jan - 03 Feb	Wizz Air Malta
23 Jan - 27 Jan	Ryanair
29 Jan - 03 Feb	Ryanair

Also check the deals for one-way flights from Treviso 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 Treviso to Keflavik in January from 166€

Return flights