| Felton to Olympia Heights (Florida) | 4,332.58 mi (6,972.61 km) |
| Felton to Omaha (Nebraska) | 4,201.04 mi (6,760.92 km) |
| Felton to On Top of the World Designated Place (Florida) | 4,246.15 mi (6,833.52 km) |
| Felton to Onalaska (Wisconsin) | 3,897.21 mi (6,271.95 km) |
| Felton to Oneida (New York) | 3,328.75 mi (5,357.10 km) |
| Felton to Oneonta (New York) | 3,330.56 mi (5,360.02 km) |
| Felton to Ontario (California) | 5,340.65 mi (8,594.94 km) |
| Felton to Ontario (Oregon) | 4,764.36 mi (7,667.49 km) |
| Felton to Opa-locka (Florida) | 4,320.17 mi (6,952.64 km) |
| Felton to Opelika (Alabama) | 4,200.00 mi (6,759.24 km) |
| Felton to Opelousas (Louisiana) | 4,579.96 mi (7,370.73 km) |
| Felton to Orange (California) | 5,361.07 mi (8,627.80 km) |
| Felton to Orange (Texas) | 4,668.19 mi (7,512.72 km) |
| Felton to Orange City (Florida) | 4,212.53 mi (6,779.41 km) |
| Felton to Orangeburg (South Carolina) | 3,973.13 mi (6,394.13 km) |
