| Vernon Hills to Olivares | 4,181.28 mi (6,729.12 km) |
| Vernon Hills to Olivenza | 4,090.80 mi (6,583.51 km) |
| Vernon Hills to Olot | 4,383.69 mi (7,054.87 km) |
| Vernon Hills to Onate | 4,142.19 mi (6,666.21 km) |
| Vernon Hills to Onda | 4,350.51 mi (7,001.46 km) |
| Vernon Hills to Onteniente | 4,379.38 mi (7,047.93 km) |
| Vernon Hills to Orihuela | 4,392.84 mi (7,069.60 km) |
| Vernon Hills to Osuna | 4,236.60 mi (6,818.15 km) |
| Vernon Hills to Ourense | 3,928.06 mi (6,321.60 km) |
| Vernon Hills to Oviedo | 3,982.09 mi (6,408.55 km) |
| Vernon Hills to Paiporta | 4,364.31 mi (7,023.68 km) |
| Vernon Hills to Pajara | 4,144.19 mi (6,669.44 km) |
| Vernon Hills to Palafolls | 4,414.77 mi (7,104.89 km) |
| Vernon Hills to Palafrugell | 4,422.57 mi (7,117.43 km) |
| Vernon Hills to Palamos | 4,423.93 mi (7,119.62 km) |
