| Opelousas to Nasaud | 5,771.92 mi (9,289.00 km) |
| Opelousas to Navodari | 6,058.89 mi (9,750.85 km) |
| Opelousas to Negresti-Oas | 5,710.86 mi (9,190.73 km) |
| Opelousas to Nehoiu | 5,926.90 mi (9,538.42 km) |
| Opelousas to Ocna Mures | 5,790.64 mi (9,319.13 km) |
| Opelousas to Odobesti | 5,936.12 mi (9,553.27 km) |
| Opelousas to Odorheiu Secuiesc | 5,847.17 mi (9,410.10 km) |
| Opelousas to Oltenita | 5,996.29 mi (9,650.10 km) |
| Opelousas to Onesti | 5,903.07 mi (9,500.08 km) |
| Opelousas to Oradea | 5,689.31 mi (9,156.06 km) |
| Opelousas to Orastie | 5,789.23 mi (9,316.86 km) |
| Opelousas to Oravita | 5,765.73 mi (9,279.04 km) |
| Opelousas to Orsova | 5,806.57 mi (9,344.77 km) |
| Opelousas to Otelu Rosu | 5,771.21 mi (9,287.87 km) |
| Opelousas to Otopeni | 5,954.18 mi (9,582.33 km) |
