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

Return flights

29 Aug - 14 Sep	Wizz Air
28 Aug - 07 Sep	Ryanair
25 Aug - 31 Aug	Wizz Air
21 Aug - 31 Aug	Ryanair
20 Aug - 28 Aug	Wizz Air
20 Aug - 31 Aug	Wizz Air
19 Aug - 26 Aug	Ryanair
13 Aug - 23 Aug	Ryanair
12 Aug - 28 Aug	Ryanair
08 Aug - 16 Aug	Wizz Air
17 Aug - 22 Aug	transavia
12 Aug - 23 Aug	Ryanair
30 Aug - 11 Sep	Lufthansa

Also check the deals for one-way flights from Pisa 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 Pisa to Keflavik in August from 239€

Return flights