| Mount Prospect to Nasaud | 5,009.00 mi (8,061.20 km) |
| Mount Prospect to Navodari | 5,296.91 mi (8,524.56 km) |
| Mount Prospect to Negresti-Oas | 4,947.91 mi (7,962.89 km) |
| Mount Prospect to Nehoiu | 5,167.18 mi (8,315.78 km) |
| Mount Prospect to Ocna Mures | 5,033.16 mi (8,100.09 km) |
| Mount Prospect to Odobesti | 5,172.52 mi (8,324.37 km) |
| Mount Prospect to Odorheiu Secuiesc | 5,086.08 mi (8,185.25 km) |
| Mount Prospect to Oltenita | 5,241.15 mi (8,434.81 km) |
| Mount Prospect to Onesti | 5,138.23 mi (8,269.19 km) |
| Mount Prospect to Oradea | 4,933.96 mi (7,940.44 km) |
| Mount Prospect to Orastie | 5,036.09 mi (8,104.80 km) |
| Mount Prospect to Oravita | 5,020.91 mi (8,080.38 km) |
| Mount Prospect to Orsova | 5,061.19 mi (8,145.19 km) |
| Mount Prospect to Otelu Rosu | 5,022.08 mi (8,082.26 km) |
| Mount Prospect to Otopeni | 5,198.67 mi (8,366.46 km) |
