| Philadelphia to Norwich | 3,570.87 mi (5,746.75 km) |
| Philadelphia to Nottingham | 3,466.78 mi (5,579.24 km) |
| Philadelphia to Nuneaton | 3,462.53 mi (5,572.40 km) |
| Philadelphia to Oadby | 3,476.77 mi (5,595.32 km) |
| Philadelphia to Oakengates | 3,419.61 mi (5,503.32 km) |
| Philadelphia to Oakham | 3,489.08 mi (5,615.13 km) |
| Philadelphia to Oldbury | 3,440.79 mi (5,537.42 km) |
| Philadelphia to Oldham | 3,417.10 mi (5,499.30 km) |
| Philadelphia to Ollerton | 3,467.11 mi (5,579.78 km) |
| Philadelphia to Olton | 3,450.59 mi (5,553.19 km) |
| Philadelphia to Omagh | 3,196.46 mi (5,144.21 km) |
| Philadelphia to Ormesby | 3,435.35 mi (5,528.66 km) |
| Philadelphia to Ormskirk | 3,386.20 mi (5,449.56 km) |
| Philadelphia to Orpington | 3,550.15 mi (5,713.41 km) |
| Philadelphia to Ossett | 3,435.80 mi (5,529.38 km) |
