| Irthlingborough to Lindsay (California) | 5,289.84 mi (8,513.18 km) |
| Irthlingborough to Linganore (Maryland) | 3,615.00 mi (5,817.78 km) |
| Irthlingborough to Lino Lakes (Minnesota) | 3,947.30 mi (6,352.56 km) |
| Irthlingborough to Linthicum (Maryland) | 3,598.62 mi (5,791.42 km) |
| Irthlingborough to Linton Hall (Virginia) | 3,656.09 mi (5,883.92 km) |
| Irthlingborough to Lisle (Illinois) | 3,924.61 mi (6,316.05 km) |
| Irthlingborough to Lithia Springs (Georgia) | 4,178.09 mi (6,723.99 km) |
| Irthlingborough to Little Canada (Minnesota) | 3,954.23 mi (6,363.72 km) |
| Irthlingborough to Little Chute (Wisconsin) | 3,816.45 mi (6,141.99 km) |
| Irthlingborough to Little Elm (Texas) | 4,688.32 mi (7,545.12 km) |
| Irthlingborough to Little Ferry (New Jersey) | 3,419.59 mi (5,503.30 km) |
| Irthlingborough to Little Rock (Arkansas) | 4,434.26 mi (7,136.26 km) |
| Irthlingborough to Littleton (Colorado) | 4,644.22 mi (7,474.15 km) |
| Irthlingborough to Live Oak (California) | 5,331.96 mi (8,580.97 km) |
| Irthlingborough to Live Oak (Texas) | 4,933.43 mi (7,939.59 km) |
