| Ieper to Navodari | 1,273.09 mi (2,048.85 km) |
| Ieper to Negresti-Oas | 943.64 mi (1,518.65 km) |
| Ieper to Nehoiu | 1,139.63 mi (1,834.06 km) |
| Ieper to Ocna Mures | 1,002.36 mi (1,613.15 km) |
| Ieper to Odobesti | 1,159.39 mi (1,865.86 km) |
| Ieper to Odorheiu Secuiesc | 1,066.73 mi (1,716.73 km) |
| Ieper to Oltenita | 1,197.07 mi (1,926.49 km) |
| Ieper to Onesti | 1,131.79 mi (1,821.44 km) |
| Ieper to Oradea | 899.25 mi (1,447.20 km) |
| Ieper to Orastie | 990.85 mi (1,594.62 km) |
| Ieper to Oravita | 954.70 mi (1,536.45 km) |
| Ieper to Orsova | 995.75 mi (1,602.50 km) |
| Ieper to Otelu Rosu | 965.89 mi (1,554.45 km) |
| Ieper to Otopeni | 1,156.60 mi (1,861.37 km) |
| Ieper to Ovidiu | 1,272.57 mi (2,048.01 km) |
