| Ubbergen to Navodari | 1,162.66 mi (1,871.13 km) |
| Ubbergen to Negresti-Oas | 824.19 mi (1,326.41 km) |
| Ubbergen to Nehoiu | 1,029.03 mi (1,656.06 km) |
| Ubbergen to Ocna Mures | 891.33 mi (1,434.46 km) |
| Ubbergen to Odobesti | 1,044.98 mi (1,681.74 km) |
| Ubbergen to Odorheiu Secuiesc | 952.95 mi (1,533.62 km) |
| Ubbergen to Oltenita | 1,092.45 mi (1,758.12 km) |
| Ubbergen to Onesti | 1,015.40 mi (1,634.13 km) |
| Ubbergen to Oradea | 788.35 mi (1,268.73 km) |
| Ubbergen to Orastie | 884.96 mi (1,424.21 km) |
| Ubbergen to Oravita | 859.05 mi (1,382.51 km) |
| Ubbergen to Orsova | 899.81 mi (1,448.10 km) |
| Ubbergen to Otelu Rosu | 864.70 mi (1,391.61 km) |
| Ubbergen to Otopeni | 1,050.93 mi (1,691.32 km) |
| Ubbergen to Ovidiu | 1,162.50 mi (1,870.87 km) |
