| Mastic Beach to Ickenham | 3,396.85 mi (5,466.71 km) |
| Mastic Beach to Ifield | 3,415.88 mi (5,497.33 km) |
| Mastic Beach to Ilford | 3,418.74 mi (5,501.93 km) |
| Mastic Beach to Ilfracombe | 3,251.83 mi (5,233.32 km) |
| Mastic Beach to Ilkeston | 3,334.15 mi (5,365.80 km) |
| Mastic Beach to Ilkley | 3,296.61 mi (5,305.37 km) |
| Mastic Beach to Immingham | 3,365.44 mi (5,416.15 km) |
| Mastic Beach to Ince-in-Makerfield | 3,272.47 mi (5,266.53 km) |
| Mastic Beach to Inverness | 3,153.94 mi (5,075.77 km) |
| Mastic Beach to Inverurie | 3,223.98 mi (5,188.49 km) |
| Mastic Beach to Ipswich | 3,451.58 mi (5,554.79 km) |
| Mastic Beach to Irlam | 3,281.15 mi (5,280.51 km) |
| Mastic Beach to Irthlingborough | 3,374.59 mi (5,430.88 km) |
| Mastic Beach to Irvine | 3,160.39 mi (5,086.16 km) |
| Mastic Beach to Islington | 3,411.31 mi (5,489.97 km) |
