| Ontario to Ickenham | 5,408.06 mi (8,703.43 km) |
| Ontario to Ifield | 5,435.69 mi (8,747.89 km) |
| Ontario to Ilford | 5,425.31 mi (8,731.20 km) |
| Ontario to Ilfracombe | 5,302.12 mi (8,532.93 km) |
| Ontario to Ilkeston | 5,316.78 mi (8,556.53 km) |
| Ontario to Ilkley | 5,258.22 mi (8,462.28 km) |
| Ontario to Immingham | 5,322.03 mi (8,564.98 km) |
| Ontario to Ince-in-Makerfield | 5,250.64 mi (8,450.09 km) |
| Ontario to Inverness | 5,032.18 mi (8,098.51 km) |
| Ontario to Inverurie | 5,094.76 mi (8,199.23 km) |
| Ontario to Ipswich | 5,436.21 mi (8,748.73 km) |
| Ontario to Irlam | 5,260.44 mi (8,465.86 km) |
| Ontario to Irthlingborough | 5,368.00 mi (8,638.95 km) |
| Ontario to Irvine | 5,096.74 mi (8,202.41 km) |
| Ontario to Islington | 5,419.86 mi (8,722.42 km) |
