Cheapest return flights from Istanbul to Copenhagen in September from $151

Best time to book flights for Istanbul (IST) to Copenhagen (CPH) flights at AirHint

AirHint found the following cheapest return flights from Istanbul (IST) to Copenhagen (CPH) in September 2025 (see full year).

Return flights

23 Sep - 26 Sep AJet direct
19 Sep - 22 Sep AJet direct
18 Sep - 21 Sep AJet direct
19 Sep - 21 Sep AJet direct
08 Sep - 12 Sep AJet direct
08 Sep - 13 Sep AJet direct
08 Sep - 14 Sep AJet direct
20 Sep - 21 Sep Aegean Airlines
20 Sep - 23 Sep Aegean Airlines
20 Sep - 22 Sep AJet
08 Sep - 10 Oct AJet
08 Sep - 10 Oct AJet direct

Also check the deals for one-way flights from Istanbul to Copenhagen in September.

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.

Book a cheap hotel in Copenhagen

Cheap car rent in Copenhagen