| Fort Bliss to Orbetello | 5,958.30 mi (9,588.96 km) |
| Fort Bliss to Oria | 6,292.41 mi (10,126.65 km) |
| Fort Bliss to Oristano | 5,967.36 mi (9,603.53 km) |
| Fort Bliss to Orta Nova | 6,180.65 mi (9,946.80 km) |
| Fort Bliss to Orte | 6,002.23 mi (9,659.66 km) |
| Fort Bliss to Ortona | 6,083.21 mi (9,789.99 km) |
| Fort Bliss to Orvieto | 5,979.90 mi (9,623.72 km) |
| Fort Bliss to Orzinuovi | 5,777.04 mi (9,297.25 km) |
| Fort Bliss to Osimo | 5,995.99 mi (9,649.62 km) |
| Fort Bliss to Ospitaletto | 5,775.33 mi (9,294.50 km) |
| Fort Bliss to Ostuni | 6,279.12 mi (10,105.27 km) |
| Fort Bliss to Ottaviano | 6,156.99 mi (9,908.71 km) |
| Fort Bliss to Ovada | 5,762.10 mi (9,273.20 km) |
| Fort Bliss to Ozieri | 5,954.17 mi (9,582.32 km) |
| Fort Bliss to Paceco | 6,215.18 mi (10,002.36 km) |
