| Encinitas to Ickenham | 5,453.25 mi (8,776.16 km) |
| Encinitas to Ifield | 5,480.65 mi (8,820.26 km) |
| Encinitas to Ilford | 5,470.72 mi (8,804.27 km) |
| Encinitas to Ilfracombe | 5,345.59 mi (8,602.90 km) |
| Encinitas to Ilkeston | 5,362.69 mi (8,630.42 km) |
| Encinitas to Ilkley | 5,304.65 mi (8,537.02 km) |
| Encinitas to Immingham | 5,368.83 mi (8,640.29 km) |
| Encinitas to Ince-in-Makerfield | 5,296.51 mi (8,523.90 km) |
| Encinitas to Inverness | 5,080.50 mi (8,176.28 km) |
| Encinitas to Inverurie | 5,143.51 mi (8,277.68 km) |
| Encinitas to Ipswich | 5,482.41 mi (8,823.08 km) |
| Encinitas to Irlam | 5,306.30 mi (8,539.66 km) |
| Encinitas to Irthlingborough | 5,413.69 mi (8,712.50 km) |
| Encinitas to Irvine | 5,143.49 mi (8,277.65 km) |
| Encinitas to Islington | 5,465.18 mi (8,795.36 km) |
