| Big Spring to Ondokuzmayis | 6,671.08 mi (10,736.07 km) |
| Big Spring to Ordu | 6,753.20 mi (10,868.23 km) |
| Big Spring to Ortahisar | 6,795.10 mi (10,935.65 km) |
| Big Spring to Ortakent | 6,617.48 mi (10,649.81 km) |
| Big Spring to Ortaklar | 6,584.60 mi (10,596.90 km) |
| Big Spring to Ortakoy | 6,762.15 mi (10,882.63 km) |
| Big Spring to Ortakoy | 6,714.73 mi (10,806.32 km) |
| Big Spring to Osmaneli | 6,542.26 mi (10,528.75 km) |
| Big Spring to Osmaniye | 6,925.93 mi (11,146.21 km) |
| Big Spring to Ozdere | 6,564.25 mi (10,564.14 km) |
| Big Spring to Palu | 6,945.03 mi (11,176.94 km) |
| Big Spring to Pamukkale | 6,640.43 mi (10,686.74 km) |
| Big Spring to Patnos | 6,995.07 mi (11,257.48 km) |
| Big Spring to Pazar | 6,747.83 mi (10,859.58 km) |
| Big Spring to Pazarcik | 6,935.60 mi (11,161.76 km) |
