| Zalec to Orangevale (California) | 5,977.70 mi (9,620.17 km) |
| Zalec to Orchards (Washington) | 5,583.65 mi (8,986.01 km) |
| Zalec to Orcutt (California) | 6,187.81 mi (9,958.32 km) |
| Zalec to Oregon (Ohio) | 4,576.89 mi (7,365.79 km) |
| Zalec to Oregon (Wisconsin) | 4,740.40 mi (7,628.93 km) |
| Zalec to Oregon City (Oregon) | 5,606.22 mi (9,022.33 km) |
| Zalec to Orem (Utah) | 5,619.07 mi (9,043.02 km) |
| Zalec to Orinda (California) | 6,051.43 mi (9,738.83 km) |
| Zalec to Orland Park (Illinois) | 4,747.19 mi (7,639.86 km) |
| Zalec to Orlando (Florida) | 5,112.98 mi (8,228.55 km) |
| Zalec to Ormond Beach (Florida) | 5,063.18 mi (8,148.40 km) |
| Zalec to Oro Valley (Arizona) | 6,048.00 mi (9,733.31 km) |
| Zalec to Oroville (California) | 5,937.14 mi (9,554.90 km) |
| Zalec to Oshkosh (Wisconsin) | 4,658.03 mi (7,496.38 km) |
| Zalec to Oskaloosa (Iowa) | 4,937.97 mi (7,946.90 km) |
