Distance between Onitsha and Ouham-Pendé is 1036.62 km.
This distance is equal to 644.12 miles, and 559.36 nautical miles.
The distance line on map shows distance from Onitsha to Ouham-Pendé between two cities.
If you travel with an airplane (which has average speed of 560 miles) between Onitsha to Ouham-Pendé,
It takes 1.15 hours to arrive.