| Terrasini Favarotta to Olympia Heights (Florida) | 5,316.63 mi (8,556.29 km) |
| Terrasini Favarotta to Omaha (Nebraska) | 5,366.18 mi (8,636.04 km) |
| Terrasini Favarotta to On Top of the World Designated Place (Florida) | 5,274.53 mi (8,488.53 km) |
| Terrasini Favarotta to Onalaska (Wisconsin) | 5,060.49 mi (8,144.07 km) |
| Terrasini Favarotta to Oneida (New York) | 4,439.15 mi (7,144.12 km) |
| Terrasini Favarotta to Oneonta (New York) | 4,433.72 mi (7,135.38 km) |
| Terrasini Favarotta to Ontario (California) | 6,531.76 mi (10,511.85 km) |
| Terrasini Favarotta to Ontario (Oregon) | 5,959.30 mi (9,590.57 km) |
| Terrasini Favarotta to Opa-locka (Florida) | 5,305.25 mi (8,537.98 km) |
| Terrasini Favarotta to Opelika (Alabama) | 5,275.38 mi (8,489.90 km) |
| Terrasini Favarotta to Opelousas (Louisiana) | 5,676.16 mi (9,134.90 km) |
| Terrasini Favarotta to Orange (California) | 6,552.19 mi (10,544.72 km) |
| Terrasini Favarotta to Orange (Texas) | 5,770.47 mi (9,286.68 km) |
| Terrasini Favarotta to Orange City (Florida) | 5,232.79 mi (8,421.36 km) |
| Terrasini Favarotta to Orangeburg (South Carolina) | 5,030.03 mi (8,095.06 km) |
