| Delaware to Nasaud | 4,930.52 mi (7,934.91 km) |
| Delaware to Navodari | 5,217.78 mi (8,397.20 km) |
| Delaware to Negresti-Oas | 4,869.43 mi (7,836.59 km) |
| Delaware to Nehoiu | 5,086.10 mi (8,185.28 km) |
| Delaware to Ocna Mures | 4,950.17 mi (7,966.52 km) |
| Delaware to Odobesti | 5,094.70 mi (8,199.13 km) |
| Delaware to Odorheiu Secuiesc | 5,006.09 mi (8,056.53 km) |
| Delaware to Oltenita | 5,156.40 mi (8,298.42 km) |
| Delaware to Onesti | 5,061.46 mi (8,145.63 km) |
| Delaware to Oradea | 4,849.18 mi (7,804.01 km) |
| Delaware to Orastie | 4,949.62 mi (7,965.64 km) |
| Delaware to Oravita | 4,928.05 mi (7,930.92 km) |
| Delaware to Orsova | 4,968.78 mi (7,996.47 km) |
| Delaware to Otelu Rosu | 4,932.48 mi (7,938.06 km) |
| Delaware to Otopeni | 5,114.19 mi (8,230.50 km) |
