| Robstown to Oerlinghausen | 5,364.72 mi (8,633.68 km) |
| Robstown to Oestrich-Winkel | 5,406.62 mi (8,701.11 km) |
| Robstown to Offenburg | 5,456.42 mi (8,781.26 km) |
| Robstown to Oftersheim | 5,450.91 mi (8,772.40 km) |
| Robstown to Ohrdruf | 5,481.38 mi (8,821.43 km) |
| Robstown to Ohringen | 5,492.46 mi (8,839.26 km) |
| Robstown to Olbernhau | 5,583.45 mi (8,985.70 km) |
| Robstown to Olching | 5,599.17 mi (9,011.00 km) |
| Robstown to Oldenburg | 5,308.25 mi (8,542.80 km) |
| Robstown to Oldenburg in Holstein | 5,362.91 mi (8,630.76 km) |
| Robstown to Olfen | 5,325.33 mi (8,570.29 km) |
| Robstown to Olpe | 5,365.76 mi (8,635.36 km) |
| Robstown to Olsberg | 5,378.96 mi (8,656.60 km) |
| Robstown to Oranienburg | 5,501.36 mi (8,853.58 km) |
| Robstown to Ortenberg | 5,434.86 mi (8,746.56 km) |
