| Westbrook to Nasaud | 4,295.51 mi (6,912.96 km) |
| Westbrook to Navodari | 4,580.50 mi (7,371.60 km) |
| Westbrook to Negresti-Oas | 4,234.77 mi (6,815.20 km) |
| Westbrook to Nehoiu | 4,447.48 mi (7,157.53 km) |
| Westbrook to Ocna Mures | 4,310.30 mi (6,936.75 km) |
| Westbrook to Odobesti | 4,459.46 mi (7,176.81 km) |
| Westbrook to Odorheiu Secuiesc | 4,369.06 mi (7,031.33 km) |
| Westbrook to Oltenita | 4,513.69 mi (7,264.08 km) |
| Westbrook to Onesti | 4,427.53 mi (7,125.41 km) |
| Westbrook to Oradea | 4,208.02 mi (6,772.16 km) |
| Westbrook to Orastie | 4,306.21 mi (6,930.18 km) |
| Westbrook to Oravita | 4,278.50 mi (6,885.57 km) |
| Westbrook to Orsova | 4,319.47 mi (6,951.52 km) |
| Westbrook to Otelu Rosu | 4,286.06 mi (6,897.74 km) |
| Westbrook to Otopeni | 4,471.96 mi (7,196.93 km) |
