| Duluth to Norwich | 3,892.99 mi (6,265.16 km) |
| Duluth to Nottingham | 3,795.83 mi (6,108.80 km) |
| Duluth to Nuneaton | 3,801.01 mi (6,117.14 km) |
| Duluth to Oadby | 3,811.87 mi (6,134.62 km) |
| Duluth to Oakengates | 3,759.94 mi (6,051.04 km) |
| Duluth to Oakham | 3,821.12 mi (6,149.50 km) |
| Duluth to Oldbury | 3,782.40 mi (6,087.19 km) |
| Duluth to Oldham | 3,740.12 mi (6,019.13 km) |
| Duluth to Ollerton | 3,791.02 mi (6,101.05 km) |
| Duluth to Olton | 3,792.35 mi (6,103.20 km) |
| Duluth to Omagh | 3,522.76 mi (5,669.34 km) |
| Duluth to Ormesby | 3,735.11 mi (6,011.09 km) |
| Duluth to Ormskirk | 3,712.53 mi (5,974.74 km) |
| Duluth to Orpington | 3,900.73 mi (6,277.62 km) |
| Duluth to Ossett | 3,753.67 mi (6,040.94 km) |
