| Mercer Island to Ickenham | 4,772.74 mi (7,680.98 km) |
| Mercer Island to Ifield | 4,802.85 mi (7,729.44 km) |
| Mercer Island to Ilford | 4,786.81 mi (7,703.62 km) |
| Mercer Island to Ilfracombe | 4,692.07 mi (7,551.16 km) |
| Mercer Island to Ilkeston | 4,673.58 mi (7,521.39 km) |
| Mercer Island to Ilkley | 4,609.08 mi (7,417.60 km) |
| Mercer Island to Immingham | 4,666.85 mi (7,510.57 km) |
| Mercer Island to Ince-in-Makerfield | 4,609.40 mi (7,418.11 km) |
| Mercer Island to Inverness | 4,361.84 mi (7,019.71 km) |
| Mercer Island to Inverurie | 4,417.44 mi (7,109.18 km) |
| Mercer Island to Ipswich | 4,786.92 mi (7,703.80 km) |
| Mercer Island to Irlam | 4,619.10 mi (7,433.73 km) |
| Mercer Island to Irthlingborough | 4,726.70 mi (7,606.89 km) |
| Mercer Island to Irvine | 4,446.56 mi (7,156.05 km) |
| Mercer Island to Islington | 4,782.60 mi (7,696.85 km) |
