| Galena Park to Oerlinghausen | 5,167.80 mi (8,316.77 km) |
| Galena Park to Oestrich-Winkel | 5,208.65 mi (8,382.51 km) |
| Galena Park to Offenburg | 5,257.85 mi (8,461.69 km) |
| Galena Park to Oftersheim | 5,252.77 mi (8,453.51 km) |
| Galena Park to Ohrdruf | 5,284.26 mi (8,504.20 km) |
| Galena Park to Ohringen | 5,294.39 mi (8,520.49 km) |
| Galena Park to Olbernhau | 5,386.78 mi (8,669.19 km) |
| Galena Park to Olching | 5,400.99 mi (8,692.06 km) |
| Galena Park to Oldenburg | 5,111.90 mi (8,226.81 km) |
| Galena Park to Oldenburg in Holstein | 5,167.86 mi (8,316.87 km) |
| Galena Park to Olfen | 5,128.06 mi (8,252.81 km) |
| Galena Park to Olpe | 5,168.22 mi (8,317.45 km) |
| Galena Park to Olsberg | 5,181.69 mi (8,339.13 km) |
| Galena Park to Oranienburg | 5,305.86 mi (8,538.96 km) |
| Galena Park to Ortenberg | 5,237.21 mi (8,428.48 km) |
