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

Return flights

06 Dec - 13 Dec	Air China
17 Dec - 20 Dec	Air China
23 Dec - 01 Jan	KLM
25 Dec - 04 Jan	Air China
15 Dec - 22 Dec	Etihad Airways
24 Dec - 31 Dec	Turkish Airlines
26 Dec - 31 Dec	Qatar Airways
25 Dec - 03 Jan	Qatar Airways
28 Dec - 04 Jan	Qatar Airways
28 Dec - 02 Jan	KLM
28 Dec - 03 Jan	Qatar Airways
26 Dec - 02 Jan	EVA Air
27 Dec - 28 Dec	Turkish Airlines
30 Dec - 02 Jan	KLM
31 Dec - 07 Jan	Singapore Airlines
04 Dec - 09 Dec	Singapore Airlines

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 $763

Return flights