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

Return flights

15 Sep - 21 Sep	Ryanair
17 Sep - 19 Sep	Ryanair
15 Sep - 19 Sep	Ryanair
16 Sep - 18 Sep	Wizz Air UK
02 Sep - 09 Sep	Wizz Air UK
03 Sep - 09 Sep	Wizz Air UK
15 Sep - 18 Sep	Wizz Air UK
24 Sep - 26 Sep	Ryanair
15 Sep - 17 Sep	Ryanair
25 Sep - 28 Sep	Ryanair
29 Sep - 01 Oct	Ryanair
20 Sep - 08 Oct	Ryanair
29 Sep - 03 Oct	Ryanair
30 Sep - 01 Oct	Wizz Air UK
18 Sep - 02 Oct	Ryanair
28 Sep - 05 Oct	easyJet
26 Sep - 01 Oct	Wizz Air UK
26 Sep - 26 Oct	Wizz Air UK
23 Sep - 09 Oct	Ryanair
26 Sep - 05 Oct	Ryanair

Also check the deals for one-way flights from London to Luxemburg 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 Luxemburg in September from 113€

Return flights