| Tomaszow Mazowiecki to Olympia Heights (Florida) | 5,263.07 mi (8,470.09 km) |
| Tomaszow Mazowiecki to Omaha (Nebraska) | 4,967.74 mi (7,994.81 km) |
| Tomaszow Mazowiecki to On Top of the World Designated Place (Florida) | 5,157.01 mi (8,299.40 km) |
| Tomaszow Mazowiecki to Onalaska (Wisconsin) | 4,673.94 mi (7,521.98 km) |
| Tomaszow Mazowiecki to Oneida (New York) | 4,192.75 mi (6,747.57 km) |
| Tomaszow Mazowiecki to Oneonta (New York) | 4,201.54 mi (6,761.73 km) |
| Tomaszow Mazowiecki to Ontario (California) | 5,991.66 mi (9,642.65 km) |
| Tomaszow Mazowiecki to Ontario (Oregon) | 5,353.16 mi (8,615.07 km) |
| Tomaszow Mazowiecki to Opa-locka (Florida) | 5,250.36 mi (8,449.64 km) |
| Tomaszow Mazowiecki to Opelika (Alabama) | 5,080.97 mi (8,177.03 km) |
| Tomaszow Mazowiecki to Opelousas (Louisiana) | 5,437.69 mi (8,751.11 km) |
| Tomaszow Mazowiecki to Orange (California) | 6,011.61 mi (9,674.75 km) |
| Tomaszow Mazowiecki to Orange (Texas) | 5,518.69 mi (8,881.47 km) |
| Tomaszow Mazowiecki to Orange City (Florida) | 5,128.02 mi (8,252.74 km) |
| Tomaszow Mazowiecki to Orangeburg (South Carolina) | 4,870.35 mi (7,838.07 km) |
