| Trani to Olympia Heights (Florida) | 5,394.51 mi (8,681.62 km) |
| Trani to Omaha (Nebraska) | 5,344.15 mi (8,600.58 km) |
| Trani to On Top of the World Designated Place (Florida) | 5,334.39 mi (8,584.87 km) |
| Trani to Onalaska (Wisconsin) | 5,040.25 mi (8,111.49 km) |
| Trani to Oneida (New York) | 4,456.34 mi (7,171.78 km) |
| Trani to Oneonta (New York) | 4,454.99 mi (7,169.62 km) |
| Trani to Ontario (California) | 6,470.56 mi (10,413.35 km) |
| Trani to Ontario (Oregon) | 5,873.16 mi (9,451.94 km) |
| Trani to Opa-locka (Florida) | 5,382.69 mi (8,662.60 km) |
| Trani to Opelika (Alabama) | 5,313.43 mi (8,551.14 km) |
| Trani to Opelousas (Louisiana) | 5,703.99 mi (9,179.69 km) |
| Trani to Orange (California) | 6,490.92 mi (10,446.13 km) |
| Trani to Orange (Texas) | 5,794.98 mi (9,326.13 km) |
| Trani to Orange City (Florida) | 5,295.94 mi (8,523.00 km) |
| Trani to Orangeburg (South Carolina) | 5,076.37 mi (8,169.63 km) |
