| Westerville to Nasaud | 4,933.13 mi (7,939.10 km) |
| Westerville to Navodari | 5,220.31 mi (8,401.28 km) |
| Westerville to Negresti-Oas | 4,872.04 mi (7,840.79 km) |
| Westerville to Nehoiu | 5,088.55 mi (8,189.23 km) |
| Westerville to Ocna Mures | 4,952.54 mi (7,970.35 km) |
| Westerville to Odobesti | 5,097.32 mi (8,203.34 km) |
| Westerville to Odorheiu Secuiesc | 5,008.61 mi (8,060.59 km) |
| Westerville to Oltenita | 5,158.66 mi (8,302.06 km) |
| Westerville to Onesti | 5,064.13 mi (8,149.93 km) |
| Westerville to Oradea | 4,851.48 mi (7,807.71 km) |
| Westerville to Orastie | 4,951.82 mi (7,969.18 km) |
| Westerville to Oravita | 4,929.92 mi (7,933.94 km) |
| Westerville to Orsova | 4,970.67 mi (7,999.52 km) |
| Westerville to Otelu Rosu | 4,934.52 mi (7,941.35 km) |
| Westerville to Otopeni | 5,116.47 mi (8,234.16 km) |
