| Dayton to Nasaud | 4,996.57 mi (8,041.20 km) |
| Dayton to Navodari | 5,283.92 mi (8,503.65 km) |
| Dayton to Negresti-Oas | 4,935.46 mi (7,942.86 km) |
| Dayton to Nehoiu | 5,152.36 mi (8,291.92 km) |
| Dayton to Ocna Mures | 5,016.54 mi (8,073.35 km) |
| Dayton to Odobesti | 5,160.72 mi (8,305.38 km) |
| Dayton to Odorheiu Secuiesc | 5,072.26 mi (8,163.02 km) |
| Dayton to Oltenita | 5,222.93 mi (8,405.50 km) |
| Dayton to Onesti | 5,127.40 mi (8,251.75 km) |
| Dayton to Oradea | 4,915.67 mi (7,911.00 km) |
| Dayton to Orastie | 5,016.23 mi (8,072.85 km) |
| Dayton to Oravita | 4,995.08 mi (8,038.80 km) |
| Dayton to Orsova | 5,035.78 mi (8,104.31 km) |
| Dayton to Otelu Rosu | 4,999.30 mi (8,045.60 km) |
| Dayton to Otopeni | 5,180.70 mi (8,337.53 km) |
