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

Return flights

29 Jul - 02 Aug	easyJet
25 Jul - 01 Aug	Ryanair
22 Jul - 02 Aug	Ryanair
22 Jul - 24 Jul	Ryanair
26 Jul - 02 Aug	Fly Play	direct
23 Jul - 27 Jul	Ryanair
22 Jul - 26 Jul	Ryanair
22 Jul - 05 Aug	Fly Play	direct
22 Jul - 02 Aug	Fly Play	direct
22 Jul - 24 Jul	Fly Play	direct
22 Jul - 26 Jul	Fly Play	direct
29 Jul - 02 Aug	Fly Play	direct

Also check the deals for one-way flights from Tenerife to Keflavik in July.

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 July from 481€

Return flights