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

Return flights

17 Sep - 23 Sep	Wizz Air
22 Sep - 30 Sep	Wizz Air
24 Sep - 27 Sep	Wizz Air UK
29 Sep - 30 Sep	Wizz Air
29 Sep - 03 Oct	Wizz Air
30 Sep - 07 Oct	Wizz Air
30 Sep - 03 Oct	Wizz Air
10 Sep - 23 Sep	Wizz Air
03 Sep - 03 Oct	Wizz Air
23 Sep - 30 Sep	Wizz Air
23 Sep - 27 Sep	Wizz Air
17 Sep - 06 Oct	Wizz Air
22 Sep - 24 Sep	Wizz Air
25 Sep - 27 Sep	Wizz Air
29 Sep - 02 Oct	Wizz Air
08 Sep - 15 Sep	Wizz Air
16 Sep - 07 Oct	Wizz Air Malta
29 Sep - 04 Oct	Wizz Air
25 Sep - 02 Oct	Wizz Air UK
26 Sep - 03 Oct	Wizz Air

Also check the deals for one-way flights from London 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 London to Copenhagen in September from 79€

Return flights