| Buffalo Grove to Nasaud | 5,004.43 mi (8,053.85 km) |
| Buffalo Grove to Navodari | 5,292.34 mi (8,517.20 km) |
| Buffalo Grove to Negresti-Oas | 4,943.34 mi (7,955.54 km) |
| Buffalo Grove to Nehoiu | 5,162.66 mi (8,308.50 km) |
| Buffalo Grove to Ocna Mures | 5,028.68 mi (8,092.89 km) |
| Buffalo Grove to Odobesti | 5,167.93 mi (8,316.98 km) |
| Buffalo Grove to Odorheiu Secuiesc | 5,081.53 mi (8,177.94 km) |
| Buffalo Grove to Oltenita | 5,236.70 mi (8,427.65 km) |
| Buffalo Grove to Onesti | 5,133.62 mi (8,261.76 km) |
| Buffalo Grove to Oradea | 4,929.53 mi (7,933.30 km) |
| Buffalo Grove to Orastie | 5,031.68 mi (8,097.71 km) |
| Buffalo Grove to Oravita | 5,016.65 mi (8,073.52 km) |
| Buffalo Grove to Orsova | 5,056.91 mi (8,138.31 km) |
| Buffalo Grove to Otelu Rosu | 5,017.75 mi (8,075.28 km) |
| Buffalo Grove to Otopeni | 5,194.22 mi (8,359.29 km) |
