| Philadelphia to Orthez | 3,709.26 mi (5,969.47 km) |
| Philadelphia to Orvault | 3,572.20 mi (5,748.90 km) |
| Philadelphia to Osny | 3,686.45 mi (5,932.76 km) |
| Philadelphia to Ostwald | 3,936.58 mi (6,335.32 km) |
| Philadelphia to Ouistreham | 3,582.99 mi (5,766.27 km) |
| Philadelphia to Oullins | 3,895.73 mi (6,269.57 km) |
| Philadelphia to Outreau | 3,626.75 mi (5,836.69 km) |
| Philadelphia to Oyonnax | 3,916.66 mi (6,303.26 km) |
| Philadelphia to Ozoir-la-Ferriere | 3,719.68 mi (5,986.24 km) |
| Philadelphia to Pace | 3,544.63 mi (5,704.54 km) |
| Philadelphia to Palaiseau | 3,702.95 mi (5,959.32 km) |
| Philadelphia to Pamiers | 3,828.91 mi (6,162.04 km) |
| Philadelphia to Panazol | 3,738.40 mi (6,016.37 km) |
| Philadelphia to Pantin | 3,704.88 mi (5,962.43 km) |
| Philadelphia to Paray-le-Monial | 3,844.49 mi (6,187.11 km) |
