| Diamond Bar to Norwich | 5,422.92 mi (8,727.34 km) |
| Diamond Bar to Nottingham | 5,331.56 mi (8,580.32 km) |
| Diamond Bar to Nuneaton | 5,340.74 mi (8,595.09 km) |
| Diamond Bar to Oadby | 5,349.85 mi (8,609.75 km) |
| Diamond Bar to Oakengates | 5,301.52 mi (8,531.97 km) |
| Diamond Bar to Oakham | 5,357.50 mi (8,622.06 km) |
| Diamond Bar to Oldbury | 5,323.95 mi (8,568.07 km) |
| Diamond Bar to Oldham | 5,274.68 mi (8,488.77 km) |
| Diamond Bar to Ollerton | 5,324.57 mi (8,569.07 km) |
| Diamond Bar to Olton | 5,333.71 mi (8,583.77 km) |
| Diamond Bar to Omagh | 5,064.73 mi (8,150.90 km) |
| Diamond Bar to Ormesby | 5,259.12 mi (8,463.73 km) |
| Diamond Bar to Ormskirk | 5,249.31 mi (8,447.95 km) |
| Diamond Bar to Orpington | 5,443.18 mi (8,759.95 km) |
| Diamond Bar to Ossett | 5,285.54 mi (8,506.25 km) |
