AirHint found the following cheapest return flights from Belfast (BFS) to Lyon (LYS) in December 2025 (see full year).

Return flights

20 Dec - 10 Jan	easyJet	direct
07 Dec - 13 Dec	Jet2
13 Dec - 27 Dec	easyJet	direct
06 Dec - 13 Dec	easyJet	direct
06 Dec - 10 Dec	Ryanair
13 Dec - 20 Dec	Ryanair
06 Dec - 27 Dec	easyJet	direct
13 Dec - 20 Dec	easyJet	direct
14 Dec - 21 Dec	Ryanair
06 Dec - 20 Dec	easyJet	direct
20 Dec - 03 Jan	easyJet	direct
27 Dec - 03 Jan	Ryanair
13 Dec - 03 Jan	easyJet	direct
27 Dec - 10 Jan	easyJet	direct
27 Dec - 03 Jan	easyJet	direct
27 Dec - 17 Jan	easyJet	direct

Also check the deals for one-way flights from Belfast to Lyon 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 Belfast to Lyon in December from 157€

Return flights