| Thetford to Octeville | 218.39 mi (351.46 km) |
| Thetford to Oignies | 165.52 mi (266.38 km) |
| Thetford to Oissel | 212.54 mi (342.05 km) |
| Thetford to Olivet | 318.27 mi (512.21 km) |
| Thetford to Ollioules | 682.59 mi (1,098.52 km) |
| Thetford to Olonne-sur-Mer | 421.17 mi (677.80 km) |
| Thetford to Oloron-Sainte-Marie | 639.78 mi (1,029.63 km) |
| Thetford to Onet Village | 562.23 mi (904.83 km) |
| Thetford to Onnaing | 186.25 mi (299.74 km) |
| Thetford to Orange | 601.13 mi (967.43 km) |
| Thetford to Orchies | 171.77 mi (276.43 km) |
| Thetford to Orleans | 315.70 mi (508.06 km) |
| Thetford to Orly | 263.46 mi (424.00 km) |
| Thetford to Ormesson-sur-Marne | 262.51 mi (422.47 km) |
| Thetford to Orsay | 264.21 mi (425.20 km) |
