Distance between Cuyuni-Mazaruni and Portuguesa is 1021.58 km.
This distance is equal to 634.78 miles, and 551.24 nautical miles.
The distance line on map shows distance from Cuyuni-Mazaruni to Portuguesa between two cities.
If you travel with an airplane (which has average speed of 560 miles) between Cuyuni-Mazaruni to Portuguesa,
It takes 1.13 hours to arrive.