AirHint found the following cheapest return flights from Cologne (CGN) to Tehran (IKA) in May 2026 (see full year).

Return flights

10 May - 07 Jun	Pegasus Airlines
05 May - 05 Jun	Pegasus Airlines
13 May - 06 Jun	Pegasus Airlines
13 May - 22 May	Pegasus Airlines
07 May - 04 Jun	Pegasus Airlines
04 May - 01 Jun	Pegasus Airlines
22 May - 31 May	Turkish Airlines
02 May - 30 May	Turkish Airlines
03 May - 31 May	Turkish Airlines
01 May - 29 May	Turkish Airlines

Also check the deals for one-way flights from Cologne to Tehran in May.

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 Cologne to Tehran in May from $257

Return flights