AirHint found the following cheapest return flights from London (LON) to Luxemburg (LUX) in September 2026 (see full year).

Return flights

01 Sep - 07 Sep	Ryanair	direct
17 Sep - 20 Sep	Ryanair	direct
06 Sep - 07 Sep	Ryanair	direct
06 Sep - 20 Sep	Ryanair	direct
17 Sep - 01 Oct	Ryanair	direct
11 Sep - 20 Sep	Ryanair	direct
01 Sep - 20 Sep	Ryanair	direct
22 Sep - 01 Oct	Ryanair	direct
11 Sep - 01 Oct	Ryanair	direct
01 Sep - 04 Sep	Ryanair	direct
17 Sep - 03 Oct	Ryanair	direct
22 Sep - 03 Oct	Ryanair	direct

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 65€

Return flights