| Americus to Ickenham | 4,267.87 mi (6,868.47 km) |
| Americus to Ifield | 4,286.70 mi (6,898.78 km) |
| Americus to Ilford | 4,289.79 mi (6,903.76 km) |
| Americus to Ilfracombe | 4,122.20 mi (6,634.04 km) |
| Americus to Ilkeston | 4,205.43 mi (6,767.99 km) |
| Americus to Ilkley | 4,167.72 mi (6,707.30 km) |
| Americus to Immingham | 4,236.57 mi (6,818.10 km) |
| Americus to Ince-in-Makerfield | 4,143.71 mi (6,668.66 km) |
| Americus to Inverness | 4,021.75 mi (6,472.38 km) |
| Americus to Inverurie | 4,091.80 mi (6,585.11 km) |
| Americus to Ipswich | 4,322.83 mi (6,956.92 km) |
| Americus to Irlam | 4,152.41 mi (6,682.65 km) |
| Americus to Irthlingborough | 4,245.83 mi (6,833.00 km) |
| Americus to Irvine | 4,030.69 mi (6,486.76 km) |
| Americus to Islington | 4,282.34 mi (6,891.76 km) |
