| Poplar Bluff to Santa Ursula | 4,236.35 mi (6,817.75 km) |
| Poplar Bluff to Santander | 4,387.84 mi (7,061.55 km) |
| Poplar Bluff to Santany | 4,839.76 mi (7,788.84 km) |
| Poplar Bluff to Santiago de Compostela | 4,189.89 mi (6,742.98 km) |
| Poplar Bluff to Santiago del Teide | 4,223.42 mi (6,796.94 km) |
| Poplar Bluff to Santiponce | 4,475.33 mi (7,202.35 km) |
| Poplar Bluff to Santomera | 4,692.46 mi (7,551.78 km) |
| Poplar Bluff to Santona | 4,404.07 mi (7,087.67 km) |
| Poplar Bluff to Santurce-Antiguo | 4,426.62 mi (7,123.96 km) |
| Poplar Bluff to Sarria | 4,244.50 mi (6,830.86 km) |
| Poplar Bluff to Sauzal | 4,237.53 mi (6,819.64 km) |
| Poplar Bluff to Sedavi | 4,676.14 mi (7,525.52 km) |
| Poplar Bluff to Segorbe | 4,656.68 mi (7,494.20 km) |
| Poplar Bluff to Segovia | 4,452.85 mi (7,166.18 km) |
| Poplar Bluff to Senmanat | 4,714.62 mi (7,587.46 km) |
