| Rio Grande City to Ickenham | 5,148.78 mi (8,286.17 km) |
| Rio Grande City to Ifield | 5,170.20 mi (8,320.64 km) |
| Rio Grande City to Ilford | 5,169.87 mi (8,320.10 km) |
| Rio Grande City to Ilfracombe | 5,010.85 mi (8,064.19 km) |
| Rio Grande City to Ilkeston | 5,077.64 mi (8,171.67 km) |
| Rio Grande City to Ilkley | 5,033.56 mi (8,100.72 km) |
| Rio Grande City to Immingham | 5,102.32 mi (8,211.39 km) |
| Rio Grande City to Ince-in-Makerfield | 5,013.59 mi (8,068.59 km) |
| Rio Grande City to Inverness | 4,861.63 mi (7,824.04 km) |
| Rio Grande City to Inverurie | 4,930.99 mi (7,935.67 km) |
| Rio Grande City to Ipswich | 5,197.67 mi (8,364.84 km) |
| Rio Grande City to Irlam | 5,022.75 mi (8,083.33 km) |
| Rio Grande City to Irthlingborough | 5,121.64 mi (8,242.48 km) |
| Rio Grande City to Irvine | 4,886.98 mi (7,864.84 km) |
| Rio Grande City to Islington | 5,162.81 mi (8,308.74 km) |
