| Slidell to Arcos de Valdevez | 4,445.31 mi (7,154.04 km) |
| Slidell to Arcozelo | 4,452.14 mi (7,165.03 km) |
| Slidell to Arganil | 4,500.24 mi (7,242.43 km) |
| Slidell to Arouca | 4,474.34 mi (7,200.75 km) |
| Slidell to Arruda dos Vinhos | 4,478.15 mi (7,206.88 km) |
| Slidell to Aveiro | 4,461.14 mi (7,179.52 km) |
| Slidell to Aver-o-Mar | 4,438.00 mi (7,142.27 km) |
| Slidell to Aves | 4,460.19 mi (7,177.98 km) |
| Slidell to Azambuja | 4,486.31 mi (7,220.02 km) |
| Slidell to Baiao | 4,479.45 mi (7,208.98 km) |
| Slidell to Barcelos | 4,442.96 mi (7,150.26 km) |
| Slidell to Barreiro | 4,485.53 mi (7,218.76 km) |
| Slidell to Batalha | 4,476.14 mi (7,203.65 km) |
| Slidell to Beja | 4,560.83 mi (7,339.94 km) |
| Slidell to Belas | 4,472.60 mi (7,197.95 km) |
