| Hackettstown to Sangeorgiu de Mures | 4,628.57 mi (7,448.96 km) |
| Hackettstown to Sangeorz-Bai | 4,603.65 mi (7,408.86 km) |
| Hackettstown to Sannicolau Mare | 4,496.78 mi (7,236.86 km) |
| Hackettstown to Santana | 4,520.85 mi (7,275.61 km) |
| Hackettstown to Satu Mare | 4,518.69 mi (7,272.14 km) |
| Hackettstown to Scobinti | 4,688.10 mi (7,544.76 km) |
| Hackettstown to Scornicesti | 4,712.55 mi (7,584.12 km) |
| Hackettstown to Sebes | 4,617.53 mi (7,431.20 km) |
| Hackettstown to Seini | 4,535.46 mi (7,299.12 km) |
| Hackettstown to Sfantu-Gheorghe | 4,707.54 mi (7,576.06 km) |
| Hackettstown to Sibiu | 4,647.00 mi (7,478.63 km) |
| Hackettstown to Sighetu Marmatiei | 4,551.43 mi (7,324.82 km) |
| Hackettstown to Sighisoara | 4,654.60 mi (7,490.85 km) |
| Hackettstown to Simeria | 4,599.98 mi (7,402.95 km) |
| Hackettstown to Sinaia | 4,719.65 mi (7,595.55 km) |
