| Tvrdosin to Olympia Heights (Florida) | 5,306.33 mi (8,539.72 km) |
| Tvrdosin to Omaha (Nebraska) | 5,059.64 mi (8,142.70 km) |
| Tvrdosin to On Top of the World Designated Place (Florida) | 5,209.38 mi (8,383.69 km) |
| Tvrdosin to Onalaska (Wisconsin) | 4,763.19 mi (7,665.62 km) |
| Tvrdosin to Oneida (New York) | 4,259.96 mi (6,855.75 km) |
| Tvrdosin to Oneonta (New York) | 4,266.71 mi (6,866.60 km) |
| Tvrdosin to Ontario (California) | 6,105.02 mi (9,825.08 km) |
| Tvrdosin to Ontario (Oregon) | 5,473.26 mi (8,808.36 km) |
| Tvrdosin to Opa-locka (Florida) | 5,293.78 mi (8,519.51 km) |
| Tvrdosin to Opelika (Alabama) | 5,144.34 mi (8,279.01 km) |
| Tvrdosin to Opelousas (Louisiana) | 5,508.77 mi (8,865.51 km) |
| Tvrdosin to Orange (California) | 6,125.07 mi (9,857.35 km) |
| Tvrdosin to Orange (Texas) | 5,591.96 mi (8,999.39 km) |
| Tvrdosin to Orange City (Florida) | 5,178.38 mi (8,333.80 km) |
| Tvrdosin to Orangeburg (South Carolina) | 4,927.78 mi (7,930.49 km) |
