AirHint found the following cheapest return flights from Geneva (GVA) to St.-denis (RUN) in December 2025 (see full year).

Return flights

01 Dec - 28 Dec	easyJet
03 Dec - 12 Dec	Austrian Airlines
23 Dec - 29 Dec	easyJet
26 Dec - 11 Jan	easyJet
22 Dec - 11 Jan	easyJet
06 Dec - 16 Dec	Air France
21 Dec - 30 Dec	easyJet
26 Dec - 10 Jan	easyJet
25 Dec - 04 Jan	easyJet
26 Dec - 04 Jan	easyJet
26 Dec - 05 Jan	easyJet
22 Dec - 04 Jan	easyJet
22 Dec - 02 Jan	easyJet
20 Dec - 27 Dec	Condor
24 Dec - 03 Jan	easyJet
21 Dec - 04 Jan	easyJet
20 Dec - 26 Dec	Air France

Also check the deals for one-way flights from Geneva to St.-denis in December.

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 Geneva to St.-denis in December from 760€

Return flights