| Warren to Nasaud | 4,817.88 mi (7,753.63 km) |
| Warren to Navodari | 5,105.56 mi (8,216.61 km) |
| Warren to Negresti-Oas | 4,756.75 mi (7,655.25 km) |
| Warren to Nehoiu | 4,974.56 mi (8,005.78 km) |
| Warren to Ocna Mures | 4,839.30 mi (7,788.10 km) |
| Warren to Odobesti | 4,981.91 mi (8,017.60 km) |
| Warren to Odorheiu Secuiesc | 4,894.08 mi (7,876.26 km) |
| Warren to Oltenita | 5,046.35 mi (8,121.31 km) |
| Warren to Onesti | 4,948.24 mi (7,963.43 km) |
| Warren to Oradea | 4,738.96 mi (7,626.61 km) |
| Warren to Orastie | 4,840.13 mi (7,789.43 km) |
| Warren to Oravita | 4,821.15 mi (7,758.89 km) |
| Warren to Orsova | 4,861.72 mi (7,824.18 km) |
| Warren to Otelu Rosu | 4,824.25 mi (7,763.87 km) |
| Warren to Otopeni | 5,004.01 mi (8,053.17 km) |
