| Prostejov to Oakley (California) | 5,891.31 mi (9,481.15 km) |
| Prostejov to Oakton (Virginia) | 4,422.37 mi (7,117.12 km) |
| Prostejov to Oakville (Missouri) | 4,928.16 mi (7,931.11 km) |
| Prostejov to Oatfield (Oregon) | 5,447.96 mi (8,767.64 km) |
| Prostejov to Ocala (Florida) | 5,098.02 mi (8,204.47 km) |
| Prostejov to Ocean Acres (New Jersey) | 4,264.22 mi (6,862.59 km) |
| Prostejov to Ocean City (New Jersey) | 4,299.05 mi (6,918.65 km) |
| Prostejov to Ocean Pines (Maryland) | 4,362.19 mi (7,020.26 km) |
| Prostejov to Ocean Pointe (Hawaii) | 7,536.78 mi (12,129.28 km) |
| Prostejov to Ocean Springs (Mississippi) | 5,294.69 mi (8,520.98 km) |
| Prostejov to Oceanside (California) | 6,075.80 mi (9,778.05 km) |
| Prostejov to Oceanside (New York) | 4,197.75 mi (6,755.62 km) |
| Prostejov to Ocoee (Florida) | 5,103.79 mi (8,213.76 km) |
| Prostejov to Oconomowoc (Wisconsin) | 4,625.05 mi (7,443.30 km) |
| Prostejov to Odenton (Maryland) | 4,390.31 mi (7,065.52 km) |
