| Lake Monticello to Nasaud | 4,872.12 mi (7,840.91 km) |
| Lake Monticello to Navodari | 5,156.97 mi (8,299.34 km) |
| Lake Monticello to Negresti-Oas | 4,811.39 mi (7,743.18 km) |
| Lake Monticello to Nehoiu | 5,023.89 mi (8,085.17 km) |
| Lake Monticello to Ocna Mures | 4,886.65 mi (7,864.30 km) |
| Lake Monticello to Odobesti | 5,036.04 mi (8,104.73 km) |
| Lake Monticello to Odorheiu Secuiesc | 4,945.58 mi (7,959.13 km) |
| Lake Monticello to Oltenita | 5,089.74 mi (8,191.15 km) |
| Lake Monticello to Onesti | 5,004.15 mi (8,053.40 km) |
| Lake Monticello to Oradea | 4,784.30 mi (7,699.58 km) |
| Lake Monticello to Orastie | 4,882.25 mi (7,857.23 km) |
| Lake Monticello to Oravita | 4,853.71 mi (7,811.29 km) |
| Lake Monticello to Orsova | 4,894.71 mi (7,877.28 km) |
| Lake Monticello to Otelu Rosu | 4,861.74 mi (7,824.22 km) |
| Lake Monticello to Otopeni | 5,048.07 mi (8,124.09 km) |
