| Mattoon to Nasaud | 5,158.84 mi (8,302.36 km) |
| Mattoon to Navodari | 5,446.69 mi (8,765.60 km) |
| Mattoon to Negresti-Oas | 5,097.72 mi (8,203.98 km) |
| Mattoon to Nehoiu | 5,316.16 mi (8,555.53 km) |
| Mattoon to Ocna Mures | 5,181.34 mi (8,338.56 km) |
| Mattoon to Odobesti | 5,322.70 mi (8,566.07 km) |
| Mattoon to Odorheiu Secuiesc | 5,235.41 mi (8,425.58 km) |
| Mattoon to Oltenita | 5,388.78 mi (8,672.41 km) |
| Mattoon to Onesti | 5,288.78 mi (8,511.46 km) |
| Mattoon to Oradea | 5,081.40 mi (8,177.72 km) |
| Mattoon to Orastie | 5,182.94 mi (8,341.13 km) |
| Mattoon to Oravita | 5,165.23 mi (8,312.64 km) |
| Mattoon to Orsova | 5,205.71 mi (8,377.79 km) |
| Mattoon to Otelu Rosu | 5,167.70 mi (8,316.61 km) |
| Mattoon to Otopeni | 5,346.39 mi (8,604.18 km) |
