| Falls Church to Noventa Vicentina | 4,333.15 mi (6,973.53 km) |
| Falls Church to Novi di Modena | 4,319.10 mi (6,950.92 km) |
| Falls Church to Novi Ligure | 4,232.12 mi (6,810.93 km) |
| Falls Church to Nuoro | 4,404.60 mi (7,088.51 km) |
| Falls Church to Occhiobello | 4,347.30 mi (6,996.30 km) |
| Falls Church to Oderzo | 4,357.08 mi (7,012.04 km) |
| Falls Church to Oggiono | 4,223.69 mi (6,797.38 km) |
| Falls Church to Olbia | 4,391.53 mi (7,067.48 km) |
| Falls Church to Oleggio | 4,198.78 mi (6,757.28 km) |
| Falls Church to Olgiate Comasco | 4,207.29 mi (6,770.98 km) |
| Falls Church to Olgiate Olona | 4,208.47 mi (6,772.87 km) |
| Falls Church to Omegna | 4,180.32 mi (6,727.57 km) |
| Falls Church to Opera | 4,230.75 mi (6,808.74 km) |
| Falls Church to Oppeano | 4,317.69 mi (6,948.64 km) |
| Falls Church to Orbassano | 4,169.93 mi (6,710.85 km) |
