| Effingham to Nasaud | 5,184.16 mi (8,343.11 km) |
| Effingham to Navodari | 5,471.99 mi (8,806.32 km) |
| Effingham to Negresti-Oas | 5,123.04 mi (8,244.73 km) |
| Effingham to Nehoiu | 5,341.40 mi (8,596.15 km) |
| Effingham to Ocna Mures | 5,206.52 mi (8,379.09 km) |
| Effingham to Odobesti | 5,348.05 mi (8,606.85 km) |
| Effingham to Odorheiu Secuiesc | 5,260.69 mi (8,466.26 km) |
| Effingham to Oltenita | 5,413.91 mi (8,712.84 km) |
| Effingham to Onesti | 5,314.15 mi (8,552.30 km) |
| Effingham to Oradea | 5,106.52 mi (8,218.15 km) |
| Effingham to Orastie | 5,208.01 mi (8,381.48 km) |
| Effingham to Oravita | 5,190.08 mi (8,352.62 km) |
| Effingham to Orsova | 5,230.58 mi (8,417.80 km) |
| Effingham to Otelu Rosu | 5,192.66 mi (8,356.78 km) |
| Effingham to Otopeni | 5,371.52 mi (8,644.63 km) |
