| Ontario to Greenford | 5,412.56 mi (8,710.67 km) |
| Ontario to Greenock | 5,079.73 mi (8,175.04 km) |
| Ontario to Greetland | 5,267.19 mi (8,476.73 km) |
| Ontario to Grimsby | 5,328.42 mi (8,575.26 km) |
| Ontario to Guildford | 5,418.71 mi (8,720.57 km) |
| Ontario to Guisborough | 5,254.83 mi (8,456.83 km) |
| Ontario to Guiseley | 5,264.06 mi (8,471.68 km) |
| Ontario to Hackney | 5,422.43 mi (8,726.56 km) |
| Ontario to Haddington | 5,140.01 mi (8,272.04 km) |
| Ontario to Hadleigh | 5,442.29 mi (8,758.52 km) |
| Ontario to Hailsham | 5,462.67 mi (8,791.32 km) |
| Ontario to Halesowen | 5,316.20 mi (8,555.59 km) |
| Ontario to Halewood | 5,250.84 mi (8,450.40 km) |
| Ontario to Halifax | 5,265.77 mi (8,474.44 km) |
| Ontario to Halstead | 5,425.24 mi (8,731.08 km) |
