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

Return flights

17 Sep - 30 Sep	Wizz Air
30 Sep - 01 Oct	Wizz Air Malta
29 Sep - 03 Oct	Wizz Air
15 Sep - 21 Sep	Wizz Air
23 Sep - 30 Sep	Wizz Air Malta
24 Sep - 24 Sep	Wizz Air Malta
23 Sep - 24 Sep	Wizz Air Malta
17 Sep - 19 Sep	Wizz Air
24 Sep - 27 Sep	Wizz Air Malta
08 Sep - 15 Sep	Wizz Air
24 Sep - 28 Sep	Wizz Air Malta
15 Sep - 20 Sep	Wizz Air
29 Sep - 02 Oct	Air France

Also check the deals for one-way flights from Billund to London 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.

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Cheapest return flights from Billund to London in September from $118

Return flights