| Plovdiv to Orangevale (California) | 6,456.56 mi (10,390.83 km) |
| Plovdiv to Orchards (Washington) | 6,042.30 mi (9,724.14 km) |
| Plovdiv to Orcutt (California) | 6,677.32 mi (10,746.11 km) |
| Plovdiv to Oregon (Ohio) | 5,123.16 mi (8,244.93 km) |
| Plovdiv to Oregon (Wisconsin) | 5,279.23 mi (8,496.10 km) |
| Plovdiv to Oregon City (Oregon) | 6,065.48 mi (9,761.44 km) |
| Plovdiv to Orem (Utah) | 6,122.56 mi (9,853.31 km) |
| Plovdiv to Orinda (California) | 6,528.76 mi (10,507.02 km) |
| Plovdiv to Orland Park (Illinois) | 5,289.61 mi (8,512.80 km) |
| Plovdiv to Orlando (Florida) | 5,664.76 mi (9,116.56 km) |
| Plovdiv to Ormond Beach (Florida) | 5,615.15 mi (9,036.71 km) |
| Plovdiv to Oro Valley (Arizona) | 6,568.50 mi (10,570.98 km) |
| Plovdiv to Oroville (California) | 6,413.09 mi (10,320.87 km) |
| Plovdiv to Oshkosh (Wisconsin) | 5,196.05 mi (8,362.24 km) |
| Plovdiv to Oskaloosa (Iowa) | 5,475.45 mi (8,811.89 km) |
