| Irthlingborough to Tacoma (Washington) | 4,750.99 mi (7,645.98 km) |
| Irthlingborough to Tahlequah (Oklahoma) | 4,473.79 mi (7,199.88 km) |
| Irthlingborough to Takoma Park (Maryland) | 3,622.71 mi (5,830.19 km) |
| Irthlingborough to Talladega (Alabama) | 4,253.40 mi (6,845.19 km) |
| Irthlingborough to Tallahassee (Florida) | 4,328.15 mi (6,965.48 km) |
| Irthlingborough to Tallmadge (Ohio) | 3,701.05 mi (5,956.26 km) |
| Irthlingborough to Tamalpais-Homestead Valley (California) | 5,296.13 mi (8,523.31 km) |
| Irthlingborough to Tamarac (Florida) | 4,378.88 mi (7,047.12 km) |
| Irthlingborough to Tamiami (Florida) | 4,408.08 mi (7,094.12 km) |
| Irthlingborough to Tampa (Florida) | 4,378.57 mi (7,046.63 km) |
| Irthlingborough to Tanaina (Alaska) | 4,377.77 mi (7,045.35 km) |
| Irthlingborough to Tanque Verde (Arizona) | 5,239.72 mi (8,432.51 km) |
| Irthlingborough to Tarboro (North Carolina) | 3,788.39 mi (6,096.82 km) |
| Irthlingborough to Tarpon Springs (Florida) | 4,383.80 mi (7,055.05 km) |
| Irthlingborough to Tarrytown (New York) | 3,403.08 mi (5,476.73 km) |
