| Cities | Distance |
|---|---|
| Alton to Oerlinghausen | 417.77 mi (672.33 km) |
| Alton to Oestrich-Winkel | 401.56 mi (646.24 km) |
| Alton to Offenburg | 438.04 mi (704.96 km) |
| Alton to Oftersheim | 439.51 mi (707.33 km) |
| Alton to Ohrdruf | 509.23 mi (819.52 km) |
| Alton to Ohringen | 482.31 mi (776.20 km) |
| Alton to Olbernhau | 623.37 mi (1,003.22 km) |
| Alton to Olching | 585.37 mi (942.06 km) |
| Alton to Oldenburg | 412.96 mi (664.59 km) |
| Alton to Oldenburg in Holstein | 541.06 mi (870.76 km) |
| Alton to Olfen | 362.03 mi (582.64 km) |
| Alton to Olpe | 382.28 mi (615.22 km) |
| Alton to Olsberg | 409.08 mi (658.35 km) |
| Alton to Oranienburg | 614.28 mi (988.59 km) |
| Alton to Ortenberg | 441.60 mi (710.69 km) |