| Texarkana to Orbetello | 5,382.81 mi (8,662.80 km) |
| Texarkana to Oria | 5,729.41 mi (9,220.59 km) |
| Texarkana to Oristano | 5,368.01 mi (8,638.98 km) |
| Texarkana to Orta Nova | 5,615.00 mi (9,036.47 km) |
| Texarkana to Orte | 5,431.03 mi (8,740.39 km) |
| Texarkana to Ortona | 5,518.73 mi (8,881.53 km) |
| Texarkana to Orvieto | 5,409.29 mi (8,705.41 km) |
| Texarkana to Orzinuovi | 5,215.78 mi (8,393.99 km) |
| Texarkana to Osimo | 5,435.09 mi (8,746.93 km) |
| Texarkana to Ospitaletto | 5,215.57 mi (8,393.64 km) |
| Texarkana to Ostuni | 5,717.30 mi (9,201.10 km) |
| Texarkana to Ottaviano | 5,583.77 mi (8,986.21 km) |
| Texarkana to Ovada | 5,191.64 mi (8,355.13 km) |
| Texarkana to Ozieri | 5,360.11 mi (8,626.26 km) |
| Texarkana to Paceco | 5,618.45 mi (9,042.02 km) |
