AirHint found the following cheapest return flights from Paris (CDG) to Lyon (LYS) in September 2025 (see full year).

Return flights

24 Sep - 28 Sep	easyJet
27 Sep - 28 Sep	easyJet
24 Sep - 29 Sep	easyJet
27 Sep - 29 Sep	easyJet
23 Sep - 27 Sep	easyJet
13 Sep - 22 Sep	easyJet
13 Sep - 20 Sep	easyJet
13 Sep - 18 Sep	easyJet
20 Sep - 21 Sep	easyJet
13 Sep - 14 Sep	easyJet
29 Sep - 04 Oct	easyJet
29 Sep - 03 Oct	easyJet
28 Sep - 02 Oct	Air France	direct
29 Sep - 04 Oct	Air France	direct
29 Sep - 03 Oct	Air France	direct
26 Sep - 03 Oct	easyJet
26 Sep - 03 Oct	Air France	direct

Also check the deals for one-way flights from Paris to Lyon 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 Paris to Lyon in September from $131

Return flights