| Channelview to Smolyan | 6,190.63 mi (9,962.86 km) |
| Channelview to Sofia | 6,087.11 mi (9,796.26 km) |
| Channelview to Sopot | 6,144.05 mi (9,887.90 km) |
| Channelview to Sozopol | 6,266.19 mi (10,084.46 km) |
| Channelview to Sredets | 6,250.67 mi (10,059.48 km) |
| Channelview to Stamboliyski | 6,159.19 mi (9,912.26 km) |
| Channelview to Stara Zagora | 6,188.30 mi (9,959.10 km) |
| Channelview to Svilengrad | 6,240.06 mi (10,042.40 km) |
| Channelview to Svishtov | 6,122.61 mi (9,853.40 km) |
| Channelview to Targovishte | 6,185.56 mi (9,954.70 km) |
| Channelview to Teteven | 6,113.47 mi (9,838.67 km) |
| Channelview to Troyan | 6,132.17 mi (9,868.78 km) |
| Channelview to Tryavna | 6,162.67 mi (9,917.85 km) |
| Channelview to Tutrakan | 6,149.51 mi (9,896.68 km) |
| Channelview to Varna | 6,236.33 mi (10,036.40 km) |
