| Santarem to Navodari | 1,936.49 mi (3,116.48 km) |
| Santarem to Negresti-Oas | 1,700.24 mi (2,736.28 km) |
| Santarem to Nehoiu | 1,822.28 mi (2,932.68 km) |
| Santarem to Ocna Mures | 1,708.48 mi (2,749.53 km) |
| Santarem to Odobesti | 1,859.64 mi (2,992.80 km) |
| Santarem to Odorheiu Secuiesc | 1,776.64 mi (2,859.23 km) |
| Santarem to Oltenita | 1,839.31 mi (2,960.08 km) |
| Santarem to Onesti | 1,846.41 mi (2,971.52 km) |
| Santarem to Oradea | 1,622.71 mi (2,611.50 km) |
| Santarem to Orastie | 1,673.92 mi (2,693.92 km) |
| Santarem to Oravita | 1,596.69 mi (2,569.62 km) |
| Santarem to Orsova | 1,630.24 mi (2,623.62 km) |
| Santarem to Otelu Rosu | 1,631.40 mi (2,625.49 km) |
| Santarem to Otopeni | 1,810.62 mi (2,913.91 km) |
| Santarem to Ovidiu | 1,934.02 mi (3,112.51 km) |
