| Buffalo to Nasaud | 4,648.66 mi (7,481.30 km) |
| Buffalo to Navodari | 4,935.76 mi (7,943.34 km) |
| Buffalo to Negresti-Oas | 4,587.59 mi (7,383.01 km) |
| Buffalo to Nehoiu | 4,803.92 mi (7,731.15 km) |
| Buffalo to Ocna Mures | 4,667.84 mi (7,512.16 km) |
| Buffalo to Odobesti | 4,812.86 mi (7,745.55 km) |
| Buffalo to Odorheiu Secuiesc | 4,724.05 mi (7,602.62 km) |
| Buffalo to Oltenita | 4,873.86 mi (7,843.72 km) |
| Buffalo to Onesti | 4,779.75 mi (7,692.26 km) |
| Buffalo to Oradea | 4,566.72 mi (7,349.42 km) |
| Buffalo to Orastie | 4,666.98 mi (7,510.79 km) |
| Buffalo to Oravita | 4,644.99 mi (7,475.39 km) |
| Buffalo to Orsova | 4,685.74 mi (7,540.97 km) |
| Buffalo to Otelu Rosu | 4,649.62 mi (7,482.84 km) |
| Buffalo to Otopeni | 4,831.69 mi (7,775.85 km) |
