| Texarkana to Montalegre | 4,555.70 mi (7,331.69 km) |
| Texarkana to Montemor-o-Novo | 4,627.17 mi (7,446.70 km) |
| Texarkana to Montemor-o-Velho | 4,560.50 mi (7,339.42 km) |
| Texarkana to Montijo | 4,592.81 mi (7,391.41 km) |
| Texarkana to Mortagua | 4,574.44 mi (7,361.85 km) |
| Texarkana to Moura | 4,680.02 mi (7,531.77 km) |
| Texarkana to Murtosa | 4,546.76 mi (7,317.31 km) |
| Texarkana to Nazare | 4,558.22 mi (7,335.74 km) |
| Texarkana to Nelas | 4,590.35 mi (7,387.45 km) |
| Texarkana to Obidos | 4,560.73 mi (7,339.79 km) |
| Texarkana to Odemira | 4,638.30 mi (7,464.61 km) |
| Texarkana to Odivelas | 4,576.02 mi (7,364.40 km) |
| Texarkana to Oeiras | 4,572.41 mi (7,358.59 km) |
| Texarkana to Olhao | 4,694.25 mi (7,554.66 km) |
| Texarkana to Oliveira de Azemeis | 4,551.28 mi (7,324.58 km) |
