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

Return flights

14 Sep - 17 Sep	Turkish Airlines
20 Sep - 26 Sep	IndiGo
15 Sep - 25 Sep	IndiGo
07 Sep - 21 Sep	Etihad Airways
14 Sep - 28 Sep	Etihad Airways
04 Sep - 14 Sep	Etihad Airways
11 Sep - 21 Sep	IndiGo
11 Sep - 16 Sep	IndiGo
13 Sep - 24 Sep	IndiGo
06 Sep - 21 Sep	Air India
29 Sep - 04 Oct	Air India
29 Sep - 04 Oct	Singapore Airlines	direct

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

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

Cheapest return flights from Singapore to Copenhagen in September from 547€

Return flights