| Ashtabula to Sesimbra | 3,679.95 mi (5,922.31 km) |
| Ashtabula to Setubal | 3,687.20 mi (5,933.98 km) |
| Ashtabula to Sever do Vouga | 3,641.59 mi (5,860.57 km) |
| Ashtabula to Silves | 3,753.20 mi (6,040.20 km) |
| Ashtabula to Sines | 3,707.21 mi (5,966.18 km) |
| Ashtabula to Sintra | 3,654.67 mi (5,881.63 km) |
| Ashtabula to Sobrado de Paiva | 3,636.92 mi (5,853.05 km) |
| Ashtabula to Sobral de Monte Agraco | 3,658.88 mi (5,888.40 km) |
| Ashtabula to Soure | 3,650.54 mi (5,874.97 km) |
| Ashtabula to Tabua | 3,669.08 mi (5,904.82 km) |
| Ashtabula to Tavira | 3,793.47 mi (6,105.00 km) |
| Ashtabula to Tomar | 3,675.05 mi (5,914.42 km) |
| Ashtabula to Tondela | 3,661.62 mi (5,892.81 km) |
| Ashtabula to Torre de Moncorvo | 3,684.35 mi (5,929.39 km) |
| Ashtabula to Torres Novas | 3,673.81 mi (5,912.43 km) |
