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

Return flights

23 Sep - 08 Oct	Wizz Air
23 Sep - 29 Sep	Wizz Air
29 Sep - 01 Oct	Wizz Air
30 Sep - 02 Oct	Wizz Air
22 Sep - 24 Sep	Wizz Air
23 Sep - 25 Sep	Wizz Air
30 Sep - 01 Oct	Wizz Air
29 Sep - 03 Oct	Wizz Air
28 Sep - 02 Oct	Wizz Air
16 Sep - 23 Sep	Wizz Air
14 Sep - 17 Sep	Wizz Air
29 Sep - 04 Oct	Wizz Air
22 Sep - 23 Sep	Wizz Air
15 Sep - 18 Sep	Wizz Air
17 Sep - 18 Sep	Wizz Air Malta
10 Sep - 12 Sep	Wizz Air Malta
24 Sep - 27 Sep	Wizz Air Malta
27 Sep - 03 Oct	Wizz Air Malta

Also check the deals for one-way flights from London to Billund 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 London to Billund in September from $73

Return flights