| Socorro to Nasaud | 6,182.64 mi (9,949.99 km) |
| Socorro to Navodari | 6,468.97 mi (10,410.80 km) |
| Socorro to Negresti-Oas | 6,122.09 mi (9,852.55 km) |
| Socorro to Nehoiu | 6,343.14 mi (10,208.30 km) |
| Socorro to Ocna Mures | 6,212.87 mi (9,998.65 km) |
| Socorro to Odobesti | 6,343.78 mi (10,209.32 km) |
| Socorro to Odorheiu Secuiesc | 6,261.17 mi (10,076.39 km) |
| Socorro to Oltenita | 6,421.58 mi (10,334.53 km) |
| Socorro to Onesti | 6,308.27 mi (10,152.19 km) |
| Socorro to Oradea | 6,116.84 mi (9,844.11 km) |
| Socorro to Orastie | 6,220.41 mi (10,010.78 km) |
| Socorro to Oravita | 6,213.44 mi (9,999.56 km) |
| Socorro to Orsova | 6,252.88 mi (10,063.04 km) |
| Socorro to Otelu Rosu | 6,210.54 mi (9,994.90 km) |
| Socorro to Otopeni | 6,379.07 mi (10,266.13 km) |
