| Dour to Odessa (Texas) | 5,191.14 mi (8,354.33 km) |
| Dour to Ogden (Utah) | 5,014.18 mi (8,069.55 km) |
| Dour to Oildale (California) | 5,561.43 mi (8,950.25 km) |
| Dour to Ojus (Florida) | 4,599.12 mi (7,401.56 km) |
| Dour to Okemos (Michigan) | 3,972.71 mi (6,393.46 km) |
| Dour to Oklahoma City (Oklahoma) | 4,822.31 mi (7,760.77 km) |
| Dour to Okmulgee (Oklahoma) | 4,758.09 mi (7,657.41 km) |
| Dour to Olathe (Kansas) | 4,548.36 mi (7,319.88 km) |
| Dour to Old Jamestown (Missouri) | 4,379.43 mi (7,048.01 km) |
| Dour to Oldsmar (Florida) | 4,601.59 mi (7,405.55 km) |
| Dour to Olean (New York) | 3,766.67 mi (6,061.87 km) |
| Dour to Olive Branch (Mississippi) | 4,552.73 mi (7,326.90 km) |
| Dour to Olivehurst (California) | 5,423.26 mi (8,727.89 km) |
| Dour to Olney (Maryland) | 3,841.38 mi (6,182.11 km) |
| Dour to Olympia (Washington) | 4,993.86 mi (8,036.83 km) |
