| Grand Junction to Olivares | 5,215.88 mi (8,394.15 km) |
| Grand Junction to Olivenza | 5,121.07 mi (8,241.56 km) |
| Grand Junction to Olot | 5,353.54 mi (8,615.69 km) |
| Grand Junction to Onate | 5,126.00 mi (8,249.49 km) |
| Grand Junction to Onda | 5,347.86 mi (8,606.54 km) |
| Grand Junction to Onteniente | 5,385.67 mi (8,667.41 km) |
| Grand Junction to Orihuela | 5,405.15 mi (8,698.74 km) |
| Grand Junction to Osuna | 5,268.81 mi (8,479.34 km) |
| Grand Junction to Ourense | 4,936.98 mi (7,945.29 km) |
| Grand Junction to Oviedo | 4,976.39 mi (8,008.72 km) |
| Grand Junction to Paiporta | 5,365.88 mi (8,635.55 km) |
| Grand Junction to Pajara | 5,233.65 mi (8,422.74 km) |
| Grand Junction to Palafolls | 5,387.31 mi (8,670.04 km) |
| Grand Junction to Palafrugell | 5,391.43 mi (8,676.67 km) |
| Grand Junction to Palamos | 5,393.48 mi (8,679.96 km) |
