| Mason City to Greenford | 4,086.52 mi (6,576.61 km) |
| Mason City to Greenock | 3,779.69 mi (6,082.82 km) |
| Mason City to Greetland | 3,955.18 mi (6,365.25 km) |
| Mason City to Grimsby | 4,022.65 mi (6,473.82 km) |
| Mason City to Guildford | 4,089.13 mi (6,580.82 km) |
| Mason City to Guisborough | 3,954.63 mi (6,364.36 km) |
| Mason City to Guiseley | 3,954.57 mi (6,364.26 km) |
| Mason City to Hackney | 4,097.84 mi (6,594.83 km) |
| Mason City to Haddington | 3,847.69 mi (6,192.25 km) |
| Mason City to Hadleigh | 4,120.50 mi (6,631.30 km) |
| Mason City to Hailsham | 4,133.25 mi (6,651.83 km) |
| Mason City to Halesowen | 3,991.64 mi (6,423.93 km) |
| Mason City to Halewood | 3,931.78 mi (6,327.59 km) |
| Mason City to Halifax | 3,954.17 mi (6,363.62 km) |
| Mason City to Halstead | 4,107.15 mi (6,609.82 km) |
