| Tefenni to Ifield | 1,746.21 mi (2,810.25 km) |
| Tefenni to Ilford | 1,745.73 mi (2,809.48 km) |
| Tefenni to Ilfracombe | 1,908.25 mi (3,071.04 km) |
| Tefenni to Ilkeston | 1,838.29 mi (2,958.45 km) |
| Tefenni to Ilkley | 1,884.44 mi (3,032.71 km) |
| Tefenni to Immingham | 1,816.06 mi (2,922.66 km) |
| Tefenni to Ince-in-Makerfield | 1,902.80 mi (3,062.26 km) |
| Tefenni to Inverness | 2,076.22 mi (3,341.35 km) |
| Tefenni to Inverurie | 2,009.28 mi (3,233.62 km) |
| Tefenni to Ipswich | 1,717.94 mi (2,764.76 km) |
| Tefenni to Irlam | 1,893.54 mi (3,047.36 km) |
| Tefenni to Irthlingborough | 1,793.82 mi (2,886.87 km) |
| Tefenni to Irvine | 2,035.70 mi (3,276.15 km) |
| Tefenni to Islington | 1,752.86 mi (2,820.95 km) |
| Tefenni to Iver | 1,768.36 mi (2,845.90 km) |
