| Highlands Ranch to Nasaud | 5,678.89 mi (9,139.29 km) |
| Highlands Ranch to Navodari | 5,963.09 mi (9,596.67 km) |
| Highlands Ranch to Negresti-Oas | 5,618.92 mi (9,042.77 km) |
| Highlands Ranch to Nehoiu | 5,839.99 mi (9,398.55 km) |
| Highlands Ranch to Ocna Mures | 5,712.49 mi (9,193.37 km) |
| Highlands Ranch to Odobesti | 5,838.01 mi (9,395.37 km) |
| Highlands Ranch to Odorheiu Secuiesc | 5,757.89 mi (9,266.43 km) |
| Highlands Ranch to Oltenita | 5,920.70 mi (9,528.45 km) |
| Highlands Ranch to Onesti | 5,802.02 mi (9,337.44 km) |
| Highlands Ranch to Oradea | 5,618.87 mi (9,042.70 km) |
| Highlands Ranch to Orastie | 5,722.88 mi (9,210.08 km) |
| Highlands Ranch to Oravita | 5,721.56 mi (9,207.96 km) |
| Highlands Ranch to Orsova | 5,760.21 mi (9,270.17 km) |
| Highlands Ranch to Otelu Rosu | 5,715.80 mi (9,198.69 km) |
| Highlands Ranch to Otopeni | 5,878.37 mi (9,460.32 km) |
