| South Houston to Ondokuzmayis | 6,621.97 mi (10,657.03 km) |
| South Houston to Ordu | 6,709.60 mi (10,798.05 km) |
| South Houston to Ortahisar | 6,727.98 mi (10,827.63 km) |
| South Houston to Ortakent | 6,511.83 mi (10,479.77 km) |
| South Houston to Ortaklar | 6,483.56 mi (10,434.28 km) |
| South Houston to Ortakoy | 6,692.01 mi (10,769.74 km) |
| South Houston to Ortakoy | 6,656.80 mi (10,713.08 km) |
| South Houston to Osmaneli | 6,463.05 mi (10,401.27 km) |
| South Houston to Osmaniye | 6,858.00 mi (11,036.89 km) |
| South Houston to Ozdere | 6,462.40 mi (10,400.22 km) |
| South Houston to Palu | 6,900.99 mi (11,106.07 km) |
| South Houston to Pamukkale | 6,545.99 mi (10,534.76 km) |
| South Houston to Patnos | 6,966.82 mi (11,212.02 km) |
| South Houston to Pazar | 6,694.28 mi (10,773.41 km) |
| South Houston to Pazarcik | 6,874.20 mi (11,062.96 km) |
