| Isparta to Oerlinghausen | 1,442.76 mi (2,321.91 km) |
| Isparta to Oestrich-Winkel | 1,396.61 mi (2,247.62 km) |
| Isparta to Offenburg | 1,351.68 mi (2,175.32 km) |
| Isparta to Oftersheim | 1,352.95 mi (2,177.37 km) |
| Isparta to Ohrdruf | 1,324.75 mi (2,131.98 km) |
| Isparta to Ohringen | 1,311.09 mi (2,110.00 km) |
| Isparta to Olbernhau | 1,227.85 mi (1,976.04 km) |
| Isparta to Olching | 1,205.00 mi (1,939.27 km) |
| Isparta to Oldenburg | 1,505.08 mi (2,422.19 km) |
| Isparta to Oldenburg in Holstein | 1,471.41 mi (2,368.01 km) |
| Isparta to Olfen | 1,479.40 mi (2,380.86 km) |
| Isparta to Olpe | 1,437.77 mi (2,313.86 km) |
| Isparta to Olsberg | 1,425.88 mi (2,294.73 km) |
| Isparta to Oranienburg | 1,327.77 mi (2,136.84 km) |
| Isparta to Ortenberg | 1,368.40 mi (2,202.23 km) |
