| Frederikssund to Orangevale (California) | 5,353.97 mi (8,616.38 km) |
| Frederikssund to Orchards (Washington) | 4,943.07 mi (7,955.10 km) |
| Frederikssund to Orcutt (California) | 5,575.02 mi (8,972.14 km) |
| Frederikssund to Oregon (Ohio) | 4,101.14 mi (6,600.15 km) |
| Frederikssund to Oregon (Wisconsin) | 4,228.18 mi (6,804.60 km) |
| Frederikssund to Oregon City (Oregon) | 4,966.09 mi (7,992.14 km) |
| Frederikssund to Orem (Utah) | 5,024.34 mi (8,085.90 km) |
| Frederikssund to Orinda (California) | 5,426.27 mi (8,732.74 km) |
| Frederikssund to Orland Park (Illinois) | 4,249.88 mi (6,839.52 km) |
| Frederikssund to Orlando (Florida) | 4,738.39 mi (7,625.70 km) |
| Frederikssund to Ormond Beach (Florida) | 4,684.56 mi (7,539.07 km) |
| Frederikssund to Oro Valley (Arizona) | 5,481.36 mi (8,821.40 km) |
| Frederikssund to Oroville (California) | 5,310.70 mi (8,546.74 km) |
| Frederikssund to Oshkosh (Wisconsin) | 4,143.23 mi (6,667.88 km) |
| Frederikssund to Oskaloosa (Iowa) | 4,419.73 mi (7,112.87 km) |
