| Sliven to Ifield | 1,371.93 mi (2,207.92 km) |
| Sliven to Ilford | 1,367.77 mi (2,201.21 km) |
| Sliven to Ilfracombe | 1,538.62 mi (2,476.17 km) |
| Sliven to Ilkeston | 1,453.01 mi (2,338.40 km) |
| Sliven to Ilkley | 1,494.38 mi (2,404.98 km) |
| Sliven to Immingham | 1,425.51 mi (2,294.14 km) |
| Sliven to Ince-in-Makerfield | 1,515.87 mi (2,439.56 km) |
| Sliven to Inverness | 1,673.62 mi (2,693.43 km) |
| Sliven to Inverurie | 1,605.70 mi (2,584.12 km) |
| Sliven to Ipswich | 1,334.72 mi (2,148.03 km) |
| Sliven to Irlam | 1,506.93 mi (2,425.17 km) |
| Sliven to Irthlingborough | 1,411.63 mi (2,271.80 km) |
| Sliven to Irvine | 1,640.61 mi (2,640.31 km) |
| Sliven to Islington | 1,375.29 mi (2,213.31 km) |
| Sliven to Iver | 1,391.58 mi (2,239.54 km) |
