| Helena to Norwich | 4,535.89 mi (7,299.81 km) |
| Helena to Nottingham | 4,448.23 mi (7,158.74 km) |
| Helena to Nuneaton | 4,459.62 mi (7,177.07 km) |
| Helena to Oadby | 4,467.65 mi (7,189.99 km) |
| Helena to Oakengates | 4,421.78 mi (7,116.17 km) |
| Helena to Oakham | 4,474.35 mi (7,200.77 km) |
| Helena to Oldbury | 4,444.03 mi (7,151.98 km) |
| Helena to Oldham | 4,391.10 mi (7,066.80 km) |
| Helena to Ollerton | 4,440.11 mi (7,145.66 km) |
| Helena to Olton | 4,453.61 mi (7,167.39 km) |
| Helena to Omagh | 4,187.03 mi (6,738.37 km) |
| Helena to Ormesby | 4,370.28 mi (7,033.29 km) |
| Helena to Ormskirk | 4,367.16 mi (7,028.26 km) |
| Helena to Orpington | 4,562.96 mi (7,343.37 km) |
| Helena to Ossett | 4,400.44 mi (7,081.83 km) |
