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

Return flights

10 Dec - 30 Dec	China Eastern
09 Dec - 31 Dec	China Eastern
09 Dec - 19 Dec	Air China
03 Dec - 13 Dec	Air China
04 Dec - 18 Dec	Air China
01 Dec - 10 Dec	Air China
29 Dec - 12 Jan	China Eastern
11 Dec - 31 Dec	China Eastern
30 Dec - 13 Jan	China Eastern
30 Dec - 12 Jan	China Eastern
13 Dec - 31 Dec	Sichuan Airlines
13 Dec - 30 Dec	KLM
21 Dec - 03 Jan	Sichuan Airlines
13 Dec - 01 Jan	Qatar Airways
10 Dec - 28 Dec	Lufthansa
24 Dec - 03 Jan	easyJet
25 Dec - 04 Jan	Wizz Air Malta
23 Dec - 04 Jan	T'way Air
22 Dec - 03 Jan	Korean Air
27 Dec - 06 Jan	China Eastern

Also check the deals for one-way flights from Rome 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 Rome to Osaka in December from $625

Return flights