| South San Francisco to Ickenham | 5,349.05 mi (8,608.46 km) |
| South San Francisco to Ifield | 5,378.03 mi (8,655.10 km) |
| South San Francisco to Ilford | 5,364.81 mi (8,633.83 km) |
| South San Francisco to Ilfracombe | 5,254.87 mi (8,456.90 km) |
| South San Francisco to Ilkeston | 5,253.47 mi (8,454.64 km) |
| South San Francisco to Ilkley | 5,191.70 mi (8,355.23 km) |
| South San Francisco to Immingham | 5,252.79 mi (8,453.54 km) |
| South San Francisco to Ince-in-Makerfield | 5,187.99 mi (8,349.26 km) |
| South San Francisco to Inverness | 4,954.02 mi (7,972.73 km) |
| South San Francisco to Inverurie | 5,013.34 mi (8,068.19 km) |
| South San Francisco to Ipswich | 5,370.41 mi (8,642.84 km) |
| South San Francisco to Irlam | 5,197.79 mi (8,365.03 km) |
| South San Francisco to Irthlingborough | 5,305.86 mi (8,538.96 km) |
| South San Francisco to Irvine | 5,028.96 mi (8,093.33 km) |
| South San Francisco to Islington | 5,359.95 mi (8,626.01 km) |
