| Marshalltown to Noventa Vicentina | 4,821.95 mi (7,760.19 km) |
| Marshalltown to Novi di Modena | 4,815.53 mi (7,749.85 km) |
| Marshalltown to Novi Ligure | 4,741.04 mi (7,629.97 km) |
| Marshalltown to Nuoro | 4,957.47 mi (7,978.28 km) |
| Marshalltown to Occhiobello | 4,839.82 mi (7,788.93 km) |
| Marshalltown to Oderzo | 4,835.28 mi (7,781.64 km) |
| Marshalltown to Oggiono | 4,718.30 mi (7,593.37 km) |
| Marshalltown to Olbia | 4,937.45 mi (7,946.05 km) |
| Marshalltown to Oleggio | 4,699.09 mi (7,562.46 km) |
| Marshalltown to Olgiate Comasco | 4,703.85 mi (7,570.12 km) |
| Marshalltown to Olgiate Olona | 4,707.14 mi (7,575.41 km) |
| Marshalltown to Omegna | 4,678.63 mi (7,529.53 km) |
| Marshalltown to Opera | 4,730.53 mi (7,613.05 km) |
| Marshalltown to Oppeano | 4,808.16 mi (7,737.98 km) |
| Marshalltown to Orbassano | 4,682.43 mi (7,535.64 km) |
