| McDonough to Nuth | 4,469.98 mi (7,193.74 km) |
| McDonough to Oegstgeest | 4,380.91 mi (7,050.39 km) |
| McDonough to Oirschot | 4,431.33 mi (7,131.54 km) |
| McDonough to Oisterwijk | 4,425.19 mi (7,121.66 km) |
| McDonough to Oldebroek | 4,430.46 mi (7,130.13 km) |
| McDonough to Oldenzaal | 4,474.26 mi (7,200.63 km) |
| McDonough to Ommen | 4,448.86 mi (7,159.75 km) |
| McDonough to Oosterend | 4,422.66 mi (7,117.58 km) |
| McDonough to Oosterhout | 4,409.99 mi (7,097.19 km) |
| McDonough to Oosterwolde | 4,431.68 mi (7,132.10 km) |
| McDonough to Oostzaan | 4,391.07 mi (7,066.75 km) |
| McDonough to Opmeer | 4,387.01 mi (7,060.21 km) |
| McDonough to Oss | 4,433.05 mi (7,134.30 km) |
| McDonough to Oud-Beijerland | 4,387.41 mi (7,060.85 km) |
| McDonough to Oudenbosch | 4,398.07 mi (7,078.00 km) |
