| Upper Arlington to Nasaud | 4,943.41 mi (7,955.65 km) |
| Upper Arlington to Navodari | 5,230.60 mi (8,417.84 km) |
| Upper Arlington to Negresti-Oas | 4,882.33 mi (7,857.35 km) |
| Upper Arlington to Nehoiu | 5,098.85 mi (8,205.80 km) |
| Upper Arlington to Ocna Mures | 4,962.85 mi (7,986.93 km) |
| Upper Arlington to Odobesti | 5,107.60 mi (8,219.89 km) |
| Upper Arlington to Odorheiu Secuiesc | 5,018.91 mi (8,077.15 km) |
| Upper Arlington to Oltenita | 5,168.97 mi (8,318.65 km) |
| Upper Arlington to Onesti | 5,074.41 mi (8,166.47 km) |
| Upper Arlington to Oradea | 4,861.79 mi (7,824.30 km) |
| Upper Arlington to Orastie | 4,962.13 mi (7,985.78 km) |
| Upper Arlington to Oravita | 4,940.25 mi (7,950.57 km) |
| Upper Arlington to Orsova | 4,981.00 mi (8,016.15 km) |
| Upper Arlington to Otelu Rosu | 4,944.85 mi (7,957.96 km) |
| Upper Arlington to Otopeni | 5,126.78 mi (8,250.76 km) |
