| North Richland Hills to Sinop | 6,445.14 mi (10,372.46 km) |
| North Richland Hills to Siran | 6,671.15 mi (10,736.18 km) |
| North Richland Hills to Sirnak | 6,924.75 mi (11,144.31 km) |
| North Richland Hills to Sirvan | 6,880.44 mi (11,073.01 km) |
| North Richland Hills to Sivas | 6,629.14 mi (10,668.57 km) |
| North Richland Hills to Sivasli | 6,444.81 mi (10,371.93 km) |
| North Richland Hills to Siverek | 6,813.93 mi (10,965.96 km) |
| North Richland Hills to Sivrice | 6,774.70 mi (10,902.82 km) |
| North Richland Hills to Sivrihisar | 6,461.12 mi (10,398.17 km) |
| North Richland Hills to Sogut | 6,383.96 mi (10,274.00 km) |
| North Richland Hills to Sogutlu | 6,349.14 mi (10,217.95 km) |
| North Richland Hills to Soke | 6,397.48 mi (10,295.75 km) |
| North Richland Hills to Solhan | 6,799.16 mi (10,942.19 km) |
| North Richland Hills to Soma | 6,333.09 mi (10,192.13 km) |
| North Richland Hills to Sorgun | 6,566.10 mi (10,567.11 km) |
