| Sumter to Islahiye | 6,078.98 mi (9,783.18 km) |
| Sumter to Isparta | 5,792.31 mi (9,321.82 km) |
| Sumter to Istanbul | 5,586.32 mi (8,990.31 km) |
| Sumter to Izmir | 5,617.80 mi (9,040.97 km) |
| Sumter to Kadinhani | 5,841.31 mi (9,400.68 km) |
| Sumter to Kadirli | 6,041.19 mi (9,722.36 km) |
| Sumter to Kagithane | 5,584.33 mi (8,987.12 km) |
| Sumter to Kahramanmaras | 6,065.10 mi (9,760.84 km) |
| Sumter to Kahta | 6,123.38 mi (9,854.63 km) |
| Sumter to Kaman | 5,853.87 mi (9,420.89 km) |
| Sumter to Kangal | 6,005.95 mi (9,665.65 km) |
| Sumter to Kapakli | 5,532.03 mi (8,902.94 km) |
| Sumter to Karaagac | 6,079.69 mi (9,784.31 km) |
| Sumter to Karaagac | 5,532.72 mi (8,904.05 km) |
| Sumter to Karabuk | 5,727.68 mi (9,217.81 km) |
