| Flagstaff to Sangeorgiu de Mures | 6,165.16 mi (9,921.87 km) |
| Flagstaff to Sangeorz-Bai | 6,124.14 mi (9,855.85 km) |
| Flagstaff to Sannicolau Mare | 6,084.51 mi (9,792.07 km) |
| Flagstaff to Santana | 6,094.21 mi (9,807.68 km) |
| Flagstaff to Satu Mare | 6,052.49 mi (9,740.53 km) |
| Flagstaff to Scobinti | 6,181.67 mi (9,948.44 km) |
| Flagstaff to Scornicesti | 6,280.19 mi (10,106.98 km) |
| Flagstaff to Sebes | 6,174.13 mi (9,936.31 km) |
| Flagstaff to Seini | 6,065.53 mi (9,761.53 km) |
| Flagstaff to Sfantu-Gheorghe | 6,239.82 mi (10,042.02 km) |
| Flagstaff to Sibiu | 6,199.64 mi (9,977.36 km) |
| Flagstaff to Sighetu Marmatiei | 6,071.55 mi (9,771.21 km) |
| Flagstaff to Sighisoara | 6,192.89 mi (9,966.49 km) |
| Flagstaff to Simeria | 6,164.75 mi (9,921.20 km) |
| Flagstaff to Sinaia | 6,263.03 mi (10,079.37 km) |
