| Onex to Santarem | 888.93 mi (1,430.60 km) |
| Onex to Santiago do Cacem | 943.00 mi (1,517.61 km) |
| Onex to Santo Andre | 943.52 mi (1,518.45 km) |
| Onex to Santo Tirso | 798.86 mi (1,285.64 km) |
| Onex to Sao Bras de Alportel | 951.67 mi (1,531.56 km) |
| Onex to Sao Felix da Marinha | 816.29 mi (1,313.69 km) |
| Onex to Sao Joao da Madeira | 815.18 mi (1,311.91 km) |
| Onex to Sao Joao de Ver | 815.91 mi (1,313.08 km) |
| Onex to Sao Mamede de Infesta | 809.45 mi (1,302.68 km) |
| Onex to Sao Pedro do Sul | 801.87 mi (1,290.48 km) |
| Onex to Satao | 787.83 mi (1,267.90 km) |
| Onex to Seia | 798.45 mi (1,284.98 km) |
| Onex to Senhora da Hora | 812.23 mi (1,307.15 km) |
| Onex to Serpa | 902.11 mi (1,451.80 km) |
| Onex to Serta | 840.47 mi (1,352.60 km) |
