| Sanford to Ickenham | 4,308.03 mi (6,933.10 km) |
| Sanford to Ifield | 4,324.72 mi (6,959.97 km) |
| Sanford to Ilford | 4,330.43 mi (6,969.15 km) |
| Sanford to Ilfracombe | 4,157.39 mi (6,690.67 km) |
| Sanford to Ilkeston | 4,252.58 mi (6,843.87 km) |
| Sanford to Ilkley | 4,219.73 mi (6,791.00 km) |
| Sanford to Immingham | 4,288.09 mi (6,901.01 km) |
| Sanford to Ince-in-Makerfield | 4,193.04 mi (6,748.05 km) |
| Sanford to Inverness | 4,092.14 mi (6,585.66 km) |
| Sanford to Inverurie | 4,162.00 mi (6,698.10 km) |
| Sanford to Ipswich | 4,367.14 mi (7,028.24 km) |
| Sanford to Irlam | 4,201.33 mi (6,761.39 km) |
| Sanford to Irthlingborough | 4,290.01 mi (6,904.10 km) |
| Sanford to Irvine | 4,090.40 mi (6,582.86 km) |
| Sanford to Islington | 4,322.73 mi (6,956.77 km) |
