| Phoenixville to Oskaloosa (Iowa) | 898.69 mi (1,446.30 km) |
| Phoenixville to Oswego (Illinois) | 677.10 mi (1,089.68 km) |
| Phoenixville to Oswego (New York) | 234.59 mi (377.53 km) |
| Phoenixville to Otsego (Minnesota) | 982.38 mi (1,580.98 km) |
| Phoenixville to Ottawa (Illinois) | 700.89 mi (1,127.97 km) |
| Phoenixville to Ottawa (Kansas) | 1,057.74 mi (1,702.26 km) |
| Phoenixville to Ottumwa (Iowa) | 887.51 mi (1,428.31 km) |
| Phoenixville to Overland (Missouri) | 797.86 mi (1,284.04 km) |
| Phoenixville to Overland Park (Kansas) | 1,023.34 mi (1,646.91 km) |
| Phoenixville to Overlea (Maryland) | 75.17 mi (120.97 km) |
| Phoenixville to Oviedo (Florida) | 855.83 mi (1,377.32 km) |
| Phoenixville to Owasso (Oklahoma) | 1,131.52 mi (1,821.00 km) |
| Phoenixville to Owatonna (Minnesota) | 945.86 mi (1,522.21 km) |
| Phoenixville to Owensboro (Kentucky) | 643.95 mi (1,036.34 km) |
| Phoenixville to Owings Mills (Maryland) | 84.03 mi (135.24 km) |
