| Buffalo Grove to Noventa Vicentina | 4,628.11 mi (7,448.22 km) |
| Buffalo Grove to Novi di Modena | 4,619.91 mi (7,435.02 km) |
| Buffalo Grove to Novi Ligure | 4,542.32 mi (7,310.16 km) |
| Buffalo Grove to Nuoro | 4,749.56 mi (7,643.67 km) |
| Buffalo Grove to Occhiobello | 4,645.17 mi (7,475.68 km) |
| Buffalo Grove to Oderzo | 4,643.94 mi (7,473.71 km) |
| Buffalo Grove to Oggiono | 4,522.77 mi (7,278.70 km) |
| Buffalo Grove to Olbia | 4,731.01 mi (7,613.83 km) |
| Buffalo Grove to Oleggio | 4,502.20 mi (7,245.58 km) |
| Buffalo Grove to Olgiate Comasco | 4,507.83 mi (7,254.65 km) |
| Buffalo Grove to Olgiate Olona | 4,510.64 mi (7,259.18 km) |
| Buffalo Grove to Omegna | 4,482.12 mi (7,213.28 km) |
| Buffalo Grove to Opera | 4,533.86 mi (7,296.54 km) |
| Buffalo Grove to Oppeano | 4,613.88 mi (7,425.32 km) |
| Buffalo Grove to Orbassano | 4,482.71 mi (7,214.23 km) |
