| Thornaby on Tees to Orbetello | 1,011.33 mi (1,627.59 km) |
| Thornaby on Tees to Oria | 1,304.63 mi (2,099.61 km) |
| Thornaby on Tees to Oristano | 1,111.23 mi (1,788.35 km) |
| Thornaby on Tees to Orta Nova | 1,199.96 mi (1,931.15 km) |
| Thornaby on Tees to Orte | 1,040.78 mi (1,674.98 km) |
| Thornaby on Tees to Ortona | 1,103.63 mi (1,776.13 km) |
| Thornaby on Tees to Orvieto | 1,018.23 mi (1,638.69 km) |
| Thornaby on Tees to Orzinuovi | 803.98 mi (1,293.89 km) |
| Thornaby on Tees to Osimo | 1,012.92 mi (1,630.14 km) |
| Thornaby on Tees to Ospitaletto | 798.97 mi (1,285.81 km) |
| Thornaby on Tees to Ostuni | 1,290.02 mi (2,076.08 km) |
| Thornaby on Tees to Ottaviano | 1,192.35 mi (1,918.90 km) |
| Thornaby on Tees to Ovada | 815.70 mi (1,312.74 km) |
| Thornaby on Tees to Ozieri | 1,075.79 mi (1,731.32 km) |
| Thornaby on Tees to Paceco | 1,317.21 mi (2,119.85 km) |
