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

Return flights

02 Dec - 15 Dec	China Eastern
04 Dec - 18 Dec	China Eastern
02 Dec - 10 Dec	China Eastern
07 Dec - 22 Dec	China Eastern
08 Dec - 15 Dec	Air China
03 Dec - 17 Dec	Air China
12 Dec - 22 Dec	Air China
10 Dec - 21 Dec	Air China
02 Dec - 18 Dec	Air China
11 Dec - 21 Dec	Air China
12 Dec - 12 Jan	Air China
21 Dec - 07 Jan	Ryanair
30 Dec - 10 Jan	Air China
29 Dec - 08 Jan	Air China
19 Dec - 14 Jan	Vueling Airlines
23 Dec - 15 Jan	Wizz Air
27 Dec - 09 Jan	Air China
20 Dec - 06 Jan	Ryanair
24 Dec - 13 Jan	Air France
20 Dec - 14 Jan	Air China

Also check the deals for one-way flights from Barcelona 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 Barcelona to Osaka in December from 519€

Return flights