| Norristown to Norwich | 3,573.83 mi (5,751.52 km) |
| Norristown to Nottingham | 3,469.78 mi (5,584.07 km) |
| Norristown to Nuneaton | 3,465.67 mi (5,577.45 km) |
| Norristown to Oadby | 3,479.87 mi (5,600.31 km) |
| Norristown to Oakengates | 3,422.75 mi (5,508.38 km) |
| Norristown to Oakham | 3,492.14 mi (5,620.06 km) |
| Norristown to Oldbury | 3,443.97 mi (5,542.53 km) |
| Norristown to Oldham | 3,419.98 mi (5,503.93 km) |
| Norristown to Ollerton | 3,470.04 mi (5,584.49 km) |
| Norristown to Olton | 3,453.77 mi (5,558.31 km) |
| Norristown to Omagh | 3,199.24 mi (5,148.69 km) |
| Norristown to Ormesby | 3,437.89 mi (5,532.75 km) |
| Norristown to Ormskirk | 3,389.11 mi (5,454.25 km) |
| Norristown to Orpington | 3,553.52 mi (5,718.84 km) |
| Norristown to Ossett | 3,438.61 mi (5,533.91 km) |
