AirHint found the following cheapest return flights from Treviso (TSF) to Keflavik (KEF) in August 2025 (see full year).

Return flights

28 Aug - 03 Sep	Ryanair
29 Aug - 07 Sep	Wizz Air Malta
20 Aug - 27 Aug	Ryanair
28 Aug - 31 Aug	Ryanair
20 Aug - 24 Aug	Ryanair
25 Aug - 01 Sep	Ryanair
13 Aug - 17 Aug	Ryanair
30 Aug - 08 Sep	Ryanair
10 Aug - 13 Aug	Ryanair
18 Aug - 27 Aug	Ryanair
15 Aug - 27 Aug	Ryanair
10 Aug - 17 Aug	Ryanair
23 Aug - 31 Aug	Ryanair
07 Aug - 12 Aug	Ryanair
26 Aug - 02 Sep	Ryanair
28 Aug - 05 Sep	Ryanair
26 Aug - 05 Sep	Ryanair
23 Aug - 07 Sep	Ryanair

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

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Cheapest return flights from Treviso to Keflavik in August from $330

Return flights