| Irthlingborough to Ansonia (Connecticut) | 3,358.72 mi (5,405.34 km) |
| Irthlingborough to Antelope (California) | 5,213.11 mi (8,389.68 km) |
| Irthlingborough to Anthem (Arizona) | 5,198.07 mi (8,365.49 km) |
| Irthlingborough to Antioch (California) | 5,268.67 mi (8,479.10 km) |
| Irthlingborough to Antioch (Illinois) | 3,891.85 mi (6,263.32 km) |
| Irthlingborough to Apache Junction (Arizona) | 5,203.90 mi (8,374.86 km) |
| Irthlingborough to Apex (North Carolina) | 3,850.61 mi (6,196.96 km) |
| Irthlingborough to Apollo Beach (Florida) | 4,388.58 mi (7,062.74 km) |
| Irthlingborough to Apopka (Florida) | 4,305.01 mi (6,928.24 km) |
| Irthlingborough to Apple Valley (California) | 5,326.96 mi (8,572.92 km) |
| Irthlingborough to Apple Valley (Minnesota) | 3,971.54 mi (6,391.57 km) |
| Irthlingborough to Appleton (Wisconsin) | 3,819.55 mi (6,146.97 km) |
| Irthlingborough to Arbutus (Maryland) | 3,598.26 mi (5,790.84 km) |
| Irthlingborough to Arcadia (California) | 5,376.26 mi (8,652.26 km) |
| Irthlingborough to Arcata (California) | 5,165.10 mi (8,312.42 km) |
