| Webster Groves to Montalegre | 4,185.25 mi (6,735.50 km) |
| Webster Groves to Montemor-o-Novo | 4,267.75 mi (6,868.28 km) |
| Webster Groves to Montemor-o-Velho | 4,196.52 mi (6,753.65 km) |
| Webster Groves to Montijo | 4,234.21 mi (6,814.31 km) |
| Webster Groves to Mortagua | 4,209.01 mi (6,773.74 km) |
| Webster Groves to Moura | 4,321.33 mi (6,954.51 km) |
| Webster Groves to Murtosa | 4,180.82 mi (6,728.38 km) |
| Webster Groves to Nazare | 4,196.66 mi (6,753.87 km) |
| Webster Groves to Nelas | 4,224.17 mi (6,798.14 km) |
| Webster Groves to Obidos | 4,200.13 mi (6,759.45 km) |
| Webster Groves to Odemira | 4,283.22 mi (6,893.18 km) |
| Webster Groves to Odivelas | 4,217.44 mi (6,787.31 km) |
| Webster Groves to Oeiras | 4,214.39 mi (6,782.40 km) |
| Webster Groves to Olhao | 4,340.00 mi (6,984.55 km) |
| Webster Groves to Oliveira de Azemeis | 4,184.80 mi (6,734.78 km) |
