| Fort Dodge to Norwich | 4,171.30 mi (6,713.05 km) |
| Fort Dodge to Nottingham | 4,072.61 mi (6,554.23 km) |
| Fort Dodge to Nuneaton | 4,076.39 mi (6,560.31 km) |
| Fort Dodge to Oadby | 4,087.82 mi (6,578.72 km) |
| Fort Dodge to Oakengates | 4,034.81 mi (6,493.40 km) |
| Fort Dodge to Oakham | 4,097.58 mi (6,594.42 km) |
| Fort Dodge to Oldbury | 4,057.20 mi (6,529.43 km) |
| Fort Dodge to Oldham | 4,017.49 mi (6,465.52 km) |
| Fort Dodge to Ollerton | 4,068.53 mi (6,547.67 km) |
| Fort Dodge to Olton | 4,067.18 mi (6,545.49 km) |
| Fort Dodge to Omagh | 3,798.39 mi (6,112.92 km) |
| Fort Dodge to Ormesby | 4,015.80 mi (6,462.81 km) |
| Fort Dodge to Ormskirk | 3,989.26 mi (6,420.09 km) |
| Fort Dodge to Orpington | 4,174.77 mi (6,718.65 km) |
| Fort Dodge to Ossett | 4,031.87 mi (6,488.66 km) |
