| Bomporto to Olympia Heights (Florida) | 5,052.99 mi (8,132.00 km) |
| Bomporto to Omaha (Nebraska) | 4,981.96 mi (8,017.69 km) |
| Bomporto to On Top of the World Designated Place (Florida) | 4,985.59 mi (8,023.53 km) |
| Bomporto to Onalaska (Wisconsin) | 4,677.99 mi (7,528.50 km) |
| Bomporto to Oneida (New York) | 4,096.99 mi (6,593.46 km) |
| Bomporto to Oneonta (New York) | 4,096.38 mi (6,592.48 km) |
| Bomporto to Ontario (California) | 6,113.92 mi (9,839.41 km) |
| Bomporto to Ontario (Oregon) | 5,523.65 mi (8,889.46 km) |
| Bomporto to Opa-locka (Florida) | 5,040.99 mi (8,112.69 km) |
| Bomporto to Opelika (Alabama) | 4,957.91 mi (7,978.98 km) |
| Bomporto to Opelousas (Louisiana) | 5,345.87 mi (8,603.34 km) |
| Bomporto to Orange (California) | 6,134.31 mi (9,872.22 km) |
| Bomporto to Orange (Texas) | 5,436.18 mi (8,748.68 km) |
| Bomporto to Orange City (Florida) | 4,948.41 mi (7,963.70 km) |
| Bomporto to Orangeburg (South Carolina) | 4,723.37 mi (7,601.53 km) |
