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

Return flights

28 Aug - 04 Sep	Fly Play	direct
30 Aug - 06 Sep	Fly Play	direct
30 Aug - 11 Sep	Fly Play	direct
26 Aug - 30 Aug	Fly Play	direct
21 Aug - 28 Aug	Fly Play	direct
18 Aug - 24 Aug	Ryanair
19 Aug - 28 Aug	Ryanair
19 Aug - 23 Aug	Ryanair
16 Aug - 23 Aug	easyJet
18 Aug - 23 Aug	Ryanair
16 Aug - 21 Aug	easyJet
08 Aug - 28 Aug	Ryanair
03 Aug - 23 Aug	Binter Canarias

Also check the deals for one-way flights from Tenerife 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 Tenerife to Keflavik in August from 244€

Return flights