| Portage to Nasaud | 4,921.95 mi (7,921.11 km) |
| Portage to Navodari | 5,209.81 mi (8,384.38 km) |
| Portage to Negresti-Oas | 4,860.82 mi (7,822.74 km) |
| Portage to Nehoiu | 5,079.41 mi (8,174.53 km) |
| Portage to Ocna Mures | 4,944.73 mi (7,957.78 km) |
| Portage to Odobesti | 5,085.76 mi (8,184.74 km) |
| Portage to Odorheiu Secuiesc | 4,998.60 mi (8,044.47 km) |
| Portage to Oltenita | 5,152.30 mi (8,291.82 km) |
| Portage to Onesti | 5,051.78 mi (8,130.05 km) |
| Portage to Oradea | 4,844.94 mi (7,797.17 km) |
| Portage to Orastie | 4,946.60 mi (7,960.79 km) |
| Portage to Oravita | 4,929.50 mi (7,933.27 km) |
| Portage to Orsova | 4,969.94 mi (7,998.34 km) |
| Portage to Otelu Rosu | 4,931.65 mi (7,936.72 km) |
| Portage to Otopeni | 5,109.88 mi (8,223.56 km) |
