| Clearfield to Odessa (Texas) | 832.61 mi (1,339.96 km) |
| Clearfield to Ogden (Utah) | 9.10 mi (14.65 km) |
| Clearfield to Oildale (California) | 545.66 mi (878.16 km) |
| Clearfield to Ojus (Florida) | 2,095.33 mi (3,372.11 km) |
| Clearfield to Okemos (Michigan) | 1,417.79 mi (2,281.71 km) |
| Clearfield to Oklahoma City (Oklahoma) | 876.46 mi (1,410.52 km) |
| Clearfield to Okmulgee (Oklahoma) | 945.18 mi (1,521.12 km) |
| Clearfield to Olathe (Kansas) | 921.91 mi (1,483.67 km) |
| Clearfield to Old Jamestown (Missouri) | 1,158.60 mi (1,864.59 km) |
| Clearfield to Oldsmar (Florida) | 1,884.83 mi (3,033.34 km) |
| Clearfield to Olean (New York) | 1,725.92 mi (2,777.60 km) |
| Clearfield to Olive Branch (Mississippi) | 1,275.08 mi (2,052.05 km) |
| Clearfield to Olivehurst (California) | 522.61 mi (841.06 km) |
| Clearfield to Olney (Maryland) | 1,839.15 mi (2,959.83 km) |
| Clearfield to Olympia (Washington) | 676.92 mi (1,089.40 km) |
