| McDonough to Noventa Vicentina | 4,872.66 mi (7,841.78 km) |
| McDonough to Novi di Modena | 4,858.16 mi (7,818.46 km) |
| McDonough to Novi Ligure | 4,770.41 mi (7,677.24 km) |
| McDonough to Nuoro | 4,937.78 mi (7,946.58 km) |
| McDonough to Occhiobello | 4,886.57 mi (7,864.18 km) |
| McDonough to Oderzo | 4,897.09 mi (7,881.11 km) |
| McDonough to Oggiono | 4,762.99 mi (7,665.29 km) |
| McDonough to Olbia | 4,925.68 mi (7,927.12 km) |
| McDonough to Oleggio | 4,737.74 mi (7,624.66 km) |
| McDonough to Olgiate Comasco | 4,746.49 mi (7,638.74 km) |
| McDonough to Olgiate Olona | 4,747.53 mi (7,640.41 km) |
| McDonough to Omegna | 4,719.44 mi (7,595.20 km) |
| McDonough to Opera | 4,769.71 mi (7,676.11 km) |
| McDonough to Oppeano | 4,857.11 mi (7,816.77 km) |
| McDonough to Orbassano | 4,708.04 mi (7,576.86 km) |
