| Buffalo Grove to Nyon | 4,376.78 mi (7,043.75 km) |
| Buffalo Grove to Oberriet | 4,469.06 mi (7,192.26 km) |
| Buffalo Grove to Obersiggenthal | 4,413.59 mi (7,102.99 km) |
| Buffalo Grove to Oberwil | 4,384.23 mi (7,055.74 km) |
| Buffalo Grove to Oberwingert | 4,430.64 mi (7,130.43 km) |
| Buffalo Grove to Oftringen | 4,405.89 mi (7,090.59 km) |
| Buffalo Grove to Olten | 4,403.93 mi (7,087.44 km) |
| Buffalo Grove to Onex | 4,379.29 mi (7,047.78 km) |
| Buffalo Grove to Opfikon | 4,426.23 mi (7,123.33 km) |
| Buffalo Grove to Ostermundigen | 4,403.59 mi (7,086.89 km) |
| Buffalo Grove to Payerne | 4,387.36 mi (7,060.78 km) |
| Buffalo Grove to Pfaffikon | 4,437.16 mi (7,140.93 km) |
| Buffalo Grove to Plan-les-Ouates | 4,380.59 mi (7,049.88 km) |
| Buffalo Grove to Pratteln | 4,389.70 mi (7,064.53 km) |
| Buffalo Grove to Prilly | 4,385.37 mi (7,057.57 km) |
