| South Portland to Kocaali | 4,812.43 mi (7,744.86 km) |
| South Portland to Kocaeli | 4,788.58 mi (7,706.47 km) |
| South Portland to Konak | 4,779.33 mi (7,691.59 km) |
| South Portland to Konakli | 5,059.05 mi (8,141.76 km) |
| South Portland to Konya | 5,023.73 mi (8,084.91 km) |
| South Portland to Koprukoy | 5,283.03 mi (8,502.22 km) |
| South Portland to Korfez | 4,780.30 mi (7,693.15 km) |
| South Portland to Korkut | 5,341.77 mi (8,596.74 km) |
| South Portland to Kose | 5,189.65 mi (8,351.94 km) |
| South Portland to Kovancilar | 5,271.00 mi (8,482.86 km) |
| South Portland to Koyulhisar | 5,116.88 mi (8,234.83 km) |
| South Portland to Kozan | 5,175.82 mi (8,329.67 km) |
| South Portland to Kozlu | 4,830.62 mi (7,774.12 km) |
| South Portland to Kozluk | 5,358.20 mi (8,623.19 km) |
| South Portland to Kucuk Dalyan | 5,249.70 mi (8,448.57 km) |
