| Constanta to Ifield | 1,415.02 mi (2,277.26 km) |
| Constanta to Ilford | 1,407.36 mi (2,264.93 km) |
| Constanta to Ilfracombe | 1,584.04 mi (2,549.27 km) |
| Constanta to Ilkeston | 1,483.97 mi (2,388.22 km) |
| Constanta to Ilkley | 1,519.33 mi (2,445.12 km) |
| Constanta to Immingham | 1,450.55 mi (2,334.43 km) |
| Constanta to Ince-in-Makerfield | 1,544.33 mi (2,485.36 km) |
| Constanta to Inverness | 1,678.64 mi (2,701.51 km) |
| Constanta to Inverurie | 1,609.38 mi (2,590.04 km) |
| Constanta to Ipswich | 1,369.30 mi (2,203.67 km) |
| Constanta to Irlam | 1,535.85 mi (2,471.70 km) |
| Constanta to Irthlingborough | 1,446.41 mi (2,327.77 km) |
| Constanta to Irvine | 1,657.70 mi (2,667.82 km) |
| Constanta to Islington | 1,415.18 mi (2,277.51 km) |
| Constanta to Iver | 1,432.06 mi (2,304.67 km) |
