| Missouri City to Olivares | 4,982.37 mi (8,018.35 km) |
| Missouri City to Olivenza | 4,899.96 mi (7,885.72 km) |
| Missouri City to Olot | 5,253.58 mi (8,454.81 km) |
| Missouri City to Onate | 5,003.51 mi (8,052.37 km) |
| Missouri City to Onda | 5,195.07 mi (8,360.66 km) |
| Missouri City to Onteniente | 5,213.71 mi (8,390.65 km) |
| Missouri City to Orihuela | 5,219.92 mi (8,400.65 km) |
| Missouri City to Osuna | 5,040.18 mi (8,111.38 km) |
| Missouri City to Ourense | 4,767.36 mi (7,672.32 km) |
| Missouri City to Oviedo | 4,835.98 mi (7,782.76 km) |
| Missouri City to Paiporta | 5,204.15 mi (8,375.26 km) |
| Missouri City to Pajara | 4,810.17 mi (7,741.22 km) |
| Missouri City to Palafolls | 5,281.90 mi (8,500.40 km) |
| Missouri City to Palafrugell | 5,292.70 mi (8,517.78 km) |
| Missouri City to Palamos | 5,293.46 mi (8,519.00 km) |
