| Richardson to Noventa Vicentina | 5,413.43 mi (8,712.07 km) |
| Richardson to Novi di Modena | 5,403.89 mi (8,696.72 km) |
| Richardson to Novi Ligure | 5,323.81 mi (8,567.85 km) |
| Richardson to Nuoro | 5,520.65 mi (8,884.62 km) |
| Richardson to Occhiobello | 5,429.88 mi (8,738.54 km) |
| Richardson to Oderzo | 5,430.97 mi (8,740.31 km) |
| Richardson to Oggiono | 5,306.96 mi (8,540.73 km) |
| Richardson to Olbia | 5,504.02 mi (8,857.86 km) |
| Richardson to Oleggio | 5,285.31 mi (8,505.89 km) |
| Richardson to Olgiate Comasco | 5,291.65 mi (8,516.09 km) |
| Richardson to Olgiate Olona | 5,294.08 mi (8,520.00 km) |
| Richardson to Omegna | 5,265.59 mi (8,474.15 km) |
| Richardson to Opera | 5,317.12 mi (8,557.08 km) |
| Richardson to Oppeano | 5,398.90 mi (8,688.69 km) |
| Richardson to Orbassano | 5,263.39 mi (8,470.61 km) |
