| Thornaby on Tees to Olympia Heights (Florida) | 4,357.42 mi (7,012.59 km) |
| Thornaby on Tees to Omaha (Nebraska) | 4,140.06 mi (6,662.77 km) |
| Thornaby on Tees to On Top of the World Designated Place (Florida) | 4,255.85 mi (6,849.14 km) |
| Thornaby on Tees to Onalaska (Wisconsin) | 3,839.06 mi (6,178.38 km) |
| Thornaby on Tees to Oneida (New York) | 3,308.54 mi (5,324.58 km) |
| Thornaby on Tees to Oneonta (New York) | 3,314.21 mi (5,333.70 km) |
| Thornaby on Tees to Ontario (California) | 5,246.24 mi (8,443.00 km) |
| Thornaby on Tees to Ontario (Oregon) | 4,651.41 mi (7,485.73 km) |
| Thornaby on Tees to Opa-locka (Florida) | 4,344.76 mi (6,992.21 km) |
| Thornaby on Tees to Opelika (Alabama) | 4,190.83 mi (6,744.49 km) |
| Thornaby on Tees to Opelousas (Louisiana) | 4,558.96 mi (7,336.94 km) |
| Thornaby on Tees to Orange (California) | 5,266.59 mi (8,475.76 km) |
| Thornaby on Tees to Orange (Texas) | 4,643.78 mi (7,473.44 km) |
| Thornaby on Tees to Orange City (Florida) | 4,225.51 mi (6,800.31 km) |
| Thornaby on Tees to Orangeburg (South Carolina) | 3,973.46 mi (6,394.67 km) |
