AirHint found the following cheapest return flights from Brussels (BRU) to Osaka (KIX) in December 2025 (see full year).

Return flights

01 Dec - 16 Dec	Ryanair
07 Dec - 14 Dec	Hainan Airlines
10 Dec - 27 Dec	Juneyao Airlines
02 Dec - 08 Dec	Brussels Airlines
02 Dec - 14 Dec	Wizz Air
28 Dec - 13 Jan	Hainan Airlines
11 Dec - 26 Dec	Hainan Airlines
11 Dec - 28 Dec	Hainan Airlines
11 Dec - 08 Jan	Hainan Airlines
29 Dec - 13 Jan	Hainan Airlines
29 Dec - 17 Jan	Hainan Airlines
28 Dec - 08 Jan	Hainan Airlines
13 Dec - 23 Dec	easyJet
12 Dec - 30 Dec	Brussels Airlines
29 Dec - 14 Jan	Ryanair
15 Dec - 25 Dec	Ryanair
15 Dec - 07 Jan	Ryanair
12 Dec - 07 Jan	Brussels Airlines
14 Dec - 08 Jan	Ryanair
14 Dec - 07 Jan	Ryanair

Also check the deals for one-way flights from Brussels to Osaka 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 Brussels to Osaka in December from 615€

Return flights