| Constanta to Oschatz | 871.00 mi (1,401.75 km) |
| Constanta to Oschersleben | 964.51 mi (1,552.23 km) |
| Constanta to Osnabruck | 1,095.29 mi (1,762.69 km) |
| Constanta to Ostbevern | 1,096.97 mi (1,765.41 km) |
| Constanta to Osterburg | 971.32 mi (1,563.19 km) |
| Constanta to Ostercappeln | 1,089.94 mi (1,754.09 km) |
| Constanta to Osterhofen | 804.92 mi (1,295.40 km) |
| Constanta to Osterholz-Scharmbeck | 1,093.77 mi (1,760.25 km) |
| Constanta to Osternienburg | 928.61 mi (1,494.46 km) |
| Constanta to Osterode | 994.11 mi (1,599.87 km) |
| Constanta to Osterwieck | 983.22 mi (1,582.34 km) |
| Constanta to Ostfildern | 971.99 mi (1,564.26 km) |
| Constanta to Osthofen | 1,027.54 mi (1,653.66 km) |
| Constanta to Ostrhauderfehn | 1,134.94 mi (1,826.51 km) |
| Constanta to Ostringen | 1,003.00 mi (1,614.18 km) |
