| Clearfield to Oswego (Illinois) | 1,224.53 mi (1,970.69 km) |
| Clearfield to Oswego (New York) | 1,809.45 mi (2,912.03 km) |
| Clearfield to Otsego (Minnesota) | 968.26 mi (1,558.27 km) |
| Clearfield to Ottawa (Illinois) | 1,201.95 mi (1,934.36 km) |
| Clearfield to Ottawa (Kansas) | 904.19 mi (1,455.16 km) |
| Clearfield to Ottumwa (Iowa) | 1,019.22 mi (1,640.28 km) |
| Clearfield to Overland (Missouri) | 1,156.76 mi (1,861.62 km) |
| Clearfield to Overland Park (Kansas) | 928.75 mi (1,494.69 km) |
| Clearfield to Overlea (Maryland) | 1,863.74 mi (2,999.40 km) |
| Clearfield to Oviedo (Florida) | 1,933.93 mi (3,112.36 km) |
| Clearfield to Owasso (Oklahoma) | 932.67 mi (1,500.99 km) |
| Clearfield to Owatonna (Minnesota) | 975.57 mi (1,570.02 km) |
| Clearfield to Owensboro (Kentucky) | 1,344.39 mi (2,163.58 km) |
| Clearfield to Owings Mills (Maryland) | 1,848.77 mi (2,975.31 km) |
| Clearfield to Owosso (Michigan) | 1,428.17 mi (2,298.41 km) |
