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

Return flights

06 Dec - 14 Dec	Air China
11 Dec - 21 Dec	Air China
08 Dec - 22 Dec	Air China
04 Dec - 22 Dec	Air China
04 Dec - 15 Dec	Air China
06 Dec - 15 Dec	Air China
04 Dec - 17 Dec	Air China
02 Dec - 10 Dec	Air China
02 Dec - 15 Dec	Air China
02 Dec - 22 Dec	Air China
18 Dec - 07 Jan	Air China
13 Dec - 01 Jan	Air China
30 Dec - 11 Jan	Air China
24 Dec - 19 Jan	Iberia
25 Dec - 19 Jan	Iberia
30 Dec - 14 Jan	Air China
27 Dec - 11 Jan	Air China
25 Dec - 16 Jan	Air China
26 Dec - 11 Jan	Iberia
24 Dec - 08 Jan	Iberia

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 488€

Return flights