| Owings Mills to Oschatz | 4,162.30 mi (6,698.57 km) |
| Owings Mills to Oschersleben | 4,069.00 mi (6,548.42 km) |
| Owings Mills to Osnabruck | 3,937.93 mi (6,337.49 km) |
| Owings Mills to Ostbevern | 3,936.71 mi (6,335.52 km) |
| Owings Mills to Osterburg | 4,065.80 mi (6,543.28 km) |
| Owings Mills to Ostercappeln | 3,943.20 mi (6,345.96 km) |
| Owings Mills to Osterhofen | 4,242.47 mi (6,827.60 km) |
| Owings Mills to Osterholz-Scharmbeck | 3,941.12 mi (6,342.61 km) |
| Owings Mills to Osternienburg | 4,104.94 mi (6,606.26 km) |
| Owings Mills to Osterode | 4,039.06 mi (6,500.25 km) |
| Owings Mills to Osterwieck | 4,049.99 mi (6,517.84 km) |
| Owings Mills to Ostfildern | 4,088.72 mi (6,580.16 km) |
| Owings Mills to Osthofen | 4,022.12 mi (6,472.98 km) |
| Owings Mills to Ostrhauderfehn | 3,898.70 mi (6,274.35 km) |
| Owings Mills to Ostringen | 4,052.06 mi (6,521.16 km) |
