| Southlake to Oerlinghausen | 5,063.76 mi (8,149.34 km) |
| Southlake to Oestrich-Winkel | 5,112.47 mi (8,227.72 km) |
| Southlake to Offenburg | 5,167.24 mi (8,315.87 km) |
| Southlake to Oftersheim | 5,158.02 mi (8,301.02 km) |
| Southlake to Ohrdruf | 5,181.41 mi (8,338.68 km) |
| Southlake to Ohringen | 5,198.93 mi (8,366.88 km) |
| Southlake to Olbernhau | 5,280.80 mi (8,498.63 km) |
| Southlake to Olching | 5,306.33 mi (8,539.72 km) |
| Southlake to Oldenburg | 5,004.28 mi (8,053.62 km) |
| Southlake to Oldenburg in Holstein | 5,052.93 mi (8,131.91 km) |
| Southlake to Olfen | 5,026.56 mi (8,089.47 km) |
| Southlake to Olpe | 5,068.64 mi (8,157.19 km) |
| Southlake to Olsberg | 5,080.07 mi (8,175.58 km) |
| Southlake to Oranienburg | 5,193.09 mi (8,357.47 km) |
| Southlake to Ortenberg | 5,138.33 mi (8,269.34 km) |
