| Vernon Hills to Oerlinghausen | 4,250.95 mi (6,841.24 km) |
| Vernon Hills to Oestrich-Winkel | 4,301.66 mi (6,922.85 km) |
| Vernon Hills to Offenburg | 4,358.41 mi (7,014.18 km) |
| Vernon Hills to Oftersheim | 4,347.64 mi (6,996.85 km) |
| Vernon Hills to Ohrdruf | 4,368.79 mi (7,030.89 km) |
| Vernon Hills to Ohringen | 4,388.29 mi (7,062.27 km) |
| Vernon Hills to Olbernhau | 4,467.58 mi (7,189.87 km) |
| Vernon Hills to Olching | 4,495.87 mi (7,235.40 km) |
| Vernon Hills to Oldenburg | 4,190.90 mi (6,744.60 km) |
| Vernon Hills to Oldenburg in Holstein | 4,239.03 mi (6,822.06 km) |
| Vernon Hills to Olfen | 4,214.31 mi (6,782.28 km) |
| Vernon Hills to Olpe | 4,256.85 mi (6,850.75 km) |
| Vernon Hills to Olsberg | 4,267.77 mi (6,868.31 km) |
| Vernon Hills to Oranienburg | 4,379.23 mi (7,047.69 km) |
| Vernon Hills to Ortenberg | 4,326.69 mi (6,963.13 km) |
