| Hackettstown to Sesimbra | 3,415.97 mi (5,497.48 km) |
| Hackettstown to Setubal | 3,423.79 mi (5,510.06 km) |
| Hackettstown to Sever do Vouga | 3,387.10 mi (5,451.02 km) |
| Hackettstown to Silves | 3,485.81 mi (5,609.88 km) |
| Hackettstown to Sines | 3,441.85 mi (5,539.12 km) |
| Hackettstown to Sintra | 3,391.57 mi (5,458.20 km) |
| Hackettstown to Sobrado de Paiva | 3,383.74 mi (5,445.61 km) |
| Hackettstown to Sobral de Monte Agraco | 3,396.89 mi (5,466.77 km) |
| Hackettstown to Soure | 3,393.08 mi (5,460.63 km) |
| Hackettstown to Tabua | 3,413.63 mi (5,493.71 km) |
| Hackettstown to Tavira | 3,526.95 mi (5,676.08 km) |
| Hackettstown to Tomar | 3,416.20 mi (5,497.85 km) |
| Hackettstown to Tondela | 3,406.69 mi (5,482.54 km) |
| Hackettstown to Torre de Moncorvo | 3,433.40 mi (5,525.52 km) |
| Hackettstown to Torres Novas | 3,414.31 mi (5,494.80 km) |
