| Seymour to Nasaud | 5,099.75 mi (8,207.25 km) |
| Seymour to Navodari | 5,387.23 mi (8,669.91 km) |
| Seymour to Negresti-Oas | 5,038.63 mi (8,108.89 km) |
| Seymour to Nehoiu | 5,255.84 mi (8,458.46 km) |
| Seymour to Ocna Mures | 5,120.19 mi (8,240.15 km) |
| Seymour to Odobesti | 5,263.87 mi (8,471.38 km) |
| Seymour to Odorheiu Secuiesc | 5,175.62 mi (8,329.35 km) |
| Seymour to Oltenita | 5,326.79 mi (8,572.64 km) |
| Seymour to Onesti | 5,230.42 mi (8,417.55 km) |
| Seymour to Oradea | 5,019.47 mi (8,078.06 km) |
| Seymour to Orastie | 5,120.22 mi (8,240.20 km) |
| Seymour to Oravita | 5,099.64 mi (8,207.08 km) |
| Seymour to Orsova | 5,140.32 mi (8,272.54 km) |
| Seymour to Otelu Rosu | 5,103.58 mi (8,213.42 km) |
| Seymour to Otopeni | 5,284.53 mi (8,504.62 km) |
