| Santarem to Noventa Vicentina | 1,111.43 mi (1,788.68 km) |
| Santarem to Novi di Modena | 1,074.76 mi (1,729.66 km) |
| Santarem to Novi Ligure | 972.46 mi (1,565.03 km) |
| Santarem to Nuoro | 958.13 mi (1,541.96 km) |
| Santarem to Occhiobello | 1,107.52 mi (1,782.38 km) |
| Santarem to Oderzo | 1,165.23 mi (1,875.26 km) |
| Santarem to Oggiono | 1,020.91 mi (1,643.00 km) |
| Santarem to Olbia | 966.73 mi (1,555.80 km) |
| Santarem to Oleggio | 984.08 mi (1,583.72 km) |
| Santarem to Olgiate Comasco | 1,003.58 mi (1,615.10 km) |
| Santarem to Olgiate Olona | 996.21 mi (1,603.24 km) |
| Santarem to Omegna | 980.81 mi (1,578.46 km) |
| Santarem to Opera | 1,005.70 mi (1,618.52 km) |
| Santarem to Oppeano | 1,095.32 mi (1,762.75 km) |
| Santarem to Orbassano | 919.93 mi (1,480.48 km) |
