Naha Airport (OKA) is the origin airport and Osaka International Airport (ITM) is the destination airport.
OKA and ITM are approximately 753 miles apart by great-circle distance.
Yes. Roame's current schedule feed shows nonstop service from OKA to ITM.
Airlines represented in the current schedule are China Airlines (CI), Japan Airlines (JL), All Nippon Airways (NH) and Japan Transocean Air (NU).
Aircraft listed in the current schedule include Airbus A321 (321), Airbus A350-900 (359), Boeing 737-800 (738), Boeing 737-800 Winglets (73H), Boeing 767-300 (763), Boeing 777-200 / Boeing 777-200ER (772), Boeing 777-300 (773), Boeing 787-10 (781), Boeing 787-8 (788) and Boeing 787-9 (789).