| Irthlingborough to Troy (Michigan) | 3,700.34 mi (5,955.12 km) |
| Irthlingborough to Troy (Missouri) | 4,169.25 mi (6,709.76 km) |
| Irthlingborough to Troy (New York) | 3,323.02 mi (5,347.88 km) |
| Irthlingborough to Troy (Ohio) | 3,858.99 mi (6,210.44 km) |
| Irthlingborough to Truckee (California) | 5,142.11 mi (8,275.43 km) |
| Irthlingborough to Trujillo Alto (Puerto Rico) | 4,187.42 mi (6,739.01 km) |
| Irthlingborough to Trumbull Center (Connecticut) | 3,367.82 mi (5,419.98 km) |
| Irthlingborough to Trussville (Alabama) | 4,262.34 mi (6,859.58 km) |
| Irthlingborough to Tualatin (Oregon) | 4,866.89 mi (7,832.50 km) |
| Irthlingborough to Tuckahoe (Virginia) | 3,710.55 mi (5,971.55 km) |
| Irthlingborough to Tucker (Georgia) | 4,157.09 mi (6,690.18 km) |
| Irthlingborough to Tucson (Arizona) | 5,250.77 mi (8,450.29 km) |
| Irthlingborough to Tucson Estates (Arizona) | 5,257.93 mi (8,461.82 km) |
| Irthlingborough to Tucson Mountains (Arizona) | 5,250.48 mi (8,449.83 km) |
| Irthlingborough to Tukwila (Washington) | 4,732.98 mi (7,617.00 km) |
