| Upper Grand Lagoon to Ickenham | 4,424.78 mi (7,121.00 km) |
| Upper Grand Lagoon to Ifield | 4,443.42 mi (7,150.99 km) |
| Upper Grand Lagoon to Ilford | 4,446.76 mi (7,156.37 km) |
| Upper Grand Lagoon to Ilfracombe | 4,278.58 mi (6,885.71 km) |
| Upper Grand Lagoon to Ilkeston | 4,362.95 mi (7,021.49 km) |
| Upper Grand Lagoon to Ilkley | 4,325.60 mi (6,961.39 km) |
| Upper Grand Lagoon to Immingham | 4,394.43 mi (7,072.16 km) |
| Upper Grand Lagoon to Ince-in-Makerfield | 4,301.39 mi (6,922.42 km) |
| Upper Grand Lagoon to Inverness | 4,180.63 mi (6,728.07 km) |
| Upper Grand Lagoon to Inverurie | 4,250.68 mi (6,840.81 km) |
| Upper Grand Lagoon to Ipswich | 4,480.14 mi (7,210.09 km) |
| Upper Grand Lagoon to Irlam | 4,310.06 mi (6,936.36 km) |
| Upper Grand Lagoon to Irthlingborough | 4,403.11 mi (7,086.11 km) |
| Upper Grand Lagoon to Irvine | 4,189.05 mi (6,741.62 km) |
| Upper Grand Lagoon to Islington | 4,439.29 mi (7,144.34 km) |
