| Recco to Olympia Heights (Florida) | 4,973.77 mi (8,004.51 km) |
| Recco to Omaha (Nebraska) | 4,927.90 mi (7,930.68 km) |
| Recco to On Top of the World Designated Place (Florida) | 4,910.22 mi (7,902.23 km) |
| Recco to Onalaska (Wisconsin) | 4,623.24 mi (7,440.39 km) |
| Recco to Oneida (New York) | 4,031.32 mi (6,487.79 km) |
| Recco to Oneonta (New York) | 4,029.63 mi (6,485.07 km) |
| Recco to Ontario (California) | 6,072.21 mi (9,772.28 km) |
| Recco to Ontario (Oregon) | 5,490.16 mi (8,835.56 km) |
| Recco to Opa-locka (Florida) | 4,961.85 mi (7,985.33 km) |
| Recco to Opelika (Alabama) | 4,887.63 mi (7,865.89 km) |
| Recco to Opelousas (Louisiana) | 5,278.42 mi (8,494.80 km) |
| Recco to Orange (California) | 6,092.62 mi (9,805.13 km) |
| Recco to Orange (Texas) | 5,369.63 mi (8,641.59 km) |
| Recco to Orange City (Florida) | 4,872.27 mi (7,841.17 km) |
| Recco to Orangeburg (South Carolina) | 4,650.91 mi (7,484.91 km) |
