| Tega Cay to Oerlinghausen | 4,348.15 mi (6,997.67 km) |
| Tega Cay to Oestrich-Winkel | 4,375.48 mi (7,041.66 km) |
| Tega Cay to Offenburg | 4,415.76 mi (7,106.48 km) |
| Tega Cay to Oftersheim | 4,417.03 mi (7,108.52 km) |
| Tega Cay to Ohrdruf | 4,461.56 mi (7,180.19 km) |
| Tega Cay to Ohringen | 4,459.44 mi (7,176.78 km) |
| Tega Cay to Olbernhau | 4,568.70 mi (7,352.61 km) |
| Tega Cay to Olching | 4,564.05 mi (7,345.14 km) |
| Tega Cay to Oldenburg | 4,299.19 mi (6,918.87 km) |
| Tega Cay to Oldenburg in Holstein | 4,368.59 mi (7,030.57 km) |
| Tega Cay to Olfen | 4,304.33 mi (6,927.14 km) |
| Tega Cay to Olpe | 4,340.92 mi (6,986.04 km) |
| Tega Cay to Olsberg | 4,357.73 mi (7,013.10 km) |
| Tega Cay to Oranienburg | 4,501.05 mi (7,243.73 km) |
| Tega Cay to Ortenberg | 4,408.22 mi (7,094.35 km) |
