| Harenkarspel to Odessa (Texas) | 5,140.23 mi (8,272.39 km) |
| Harenkarspel to Ogden (Utah) | 4,930.56 mi (7,934.97 km) |
| Harenkarspel to Oildale (California) | 5,474.26 mi (8,809.98 km) |
| Harenkarspel to Ojus (Florida) | 4,604.72 mi (7,410.58 km) |
| Harenkarspel to Okemos (Michigan) | 3,931.42 mi (6,327.01 km) |
| Harenkarspel to Oklahoma City (Oklahoma) | 4,773.85 mi (7,682.77 km) |
| Harenkarspel to Okmulgee (Oklahoma) | 4,712.12 mi (7,583.43 km) |
| Harenkarspel to Olathe (Kansas) | 4,497.93 mi (7,238.72 km) |
| Harenkarspel to Old Jamestown (Missouri) | 4,337.08 mi (6,979.86 km) |
| Harenkarspel to Oldsmar (Florida) | 4,597.47 mi (7,398.91 km) |
| Harenkarspel to Olean (New York) | 3,737.06 mi (6,014.22 km) |
| Harenkarspel to Olive Branch (Mississippi) | 4,519.57 mi (7,273.55 km) |
| Harenkarspel to Olivehurst (California) | 5,327.12 mi (8,573.17 km) |
| Harenkarspel to Olney (Maryland) | 3,821.95 mi (6,150.84 km) |
| Harenkarspel to Olympia (Washington) | 4,885.85 mi (7,863.02 km) |
