Cheapest return flights from Kos to Lisbon in August from $359

AirHint found the following cheapest return flights from Kos (KGS) to Lisbon (LIS) in August 2026 (see full year).

Return flights

17 Aug - 24 Aug SWISS

Also check the deals for one-way flights from Kos to Lisbon in August.

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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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