| Mountain Ash to Oschatz | 708.23 mi (1,139.78 km) |
| Mountain Ash to Oschersleben | 623.77 mi (1,003.86 km) |
| Mountain Ash to Osnabruck | 487.63 mi (784.77 km) |
| Mountain Ash to Ostbevern | 479.14 mi (771.10 km) |
| Mountain Ash to Osterburg | 644.21 mi (1,036.76 km) |
| Mountain Ash to Ostercappeln | 495.42 mi (797.30 km) |
| Mountain Ash to Osterhofen | 752.24 mi (1,210.61 km) |
| Mountain Ash to Osterholz-Scharmbeck | 523.04 mi (841.75 km) |
| Mountain Ash to Osternienburg | 657.52 mi (1,058.18 km) |
| Mountain Ash to Osterode | 582.83 mi (937.97 km) |
| Mountain Ash to Osterwieck | 601.35 mi (967.77 km) |
| Mountain Ash to Ostfildern | 593.52 mi (955.18 km) |
| Mountain Ash to Osthofen | 529.62 mi (852.33 km) |
| Mountain Ash to Ostrhauderfehn | 473.54 mi (762.09 km) |
| Mountain Ash to Ostringen | 557.67 mi (897.48 km) |
