Cheapest return flights from Kos to Bucharest in December from $260

AirHint found the following cheapest return flights from Kos (KGS) to Bucharest (OTP) in December 2025 (see full year).

Return flights

22 Dec - 05 Jan Aegean Airlines
22 Dec - 27 Dec Aegean Airlines

Also check the deals for one-way flights from Kos to Bucharest in December.

Skyscanner

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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