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

Return flights

30 Sep - 04 Oct	TAP
24 Sep - 30 Sep	Vueling Airlines
22 Sep - 27 Sep	Ryanair
23 Sep - 30 Sep	Vueling Airlines
23 Sep - 27 Sep	Vueling Airlines
30 Sep - 05 Oct	TAP
30 Sep - 04 Oct	Ryanair	direct
30 Sep - 01 Oct	TAP
26 Sep - 30 Sep	Ryanair
29 Sep - 01 Oct	Ryanair
30 Sep - 30 Sep	easyJet	direct
29 Sep - 05 Oct	Ryanair
25 Sep - 07 Oct	Ryanair
25 Sep - 30 Sep	easyJet	direct
25 Sep - 30 Sep	Ryanair
17 Sep - 30 Sep	easyJet
25 Sep - 27 Sep	Ryanair
25 Sep - 01 Oct	easyJet	direct
30 Sep - 01 Oct	easyJet	direct
29 Sep - 02 Oct	Ryanair

Also check the deals for one-way flights from Lisbon 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.

Book a cheap hotel in Luxemburg

Cheap car rent in Luxemburg

Cheapest return flights from Lisbon to Luxemburg in September from 102€

Return flights