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

Return flights

11 Dec - 15 Dec	Japan Airlines
06 Dec - 13 Dec	Japan Airlines
31 Dec - 09 Jan	Japan Airlines
20 Dec - 05 Jan	Japan Airlines
22 Dec - 10 Jan	British Airways
23 Dec - 10 Jan	British Airways
03 Dec - 07 Dec	Air France
01 Dec - 14 Dec	Japan Airlines
09 Dec - 14 Dec	Lufthansa
03 Dec - 09 Dec	Japan Airlines
15 Dec - 08 Jan	Air France
20 Dec - 04 Jan	Ibex Airlines
07 Dec - 10 Dec	Turkish Airlines
18 Dec - 23 Dec	Qatar Airways
06 Dec - 12 Dec	Japan Airlines
10 Dec - 14 Dec	Air France
23 Dec - 04 Jan	Lufthansa
30 Dec - 05 Jan	Lufthansa
30 Dec - 04 Jan	Lufthansa
27 Dec - 06 Jan	Lufthansa

Also check the deals for one-way flights from Osaka to Barcelona 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 Osaka to Barcelona in December from 736€

Return flights