| South Portland to Iver | 3,171.97 mi (5,104.79 km) |
| South Portland to Ivybridge | 3,055.91 mi (4,918.01 km) |
| South Portland to Jarrow | 3,063.07 mi (4,929.53 km) |
| South Portland to Johnstone | 2,934.36 mi (4,722.39 km) |
| South Portland to Kearsley | 3,055.62 mi (4,917.55 km) |
| South Portland to Keighley | 3,067.30 mi (4,936.34 km) |
| South Portland to Kempston | 3,159.24 mi (5,084.30 km) |
| South Portland to Kendal | 3,026.31 mi (4,870.37 km) |
| South Portland to Kenilworth | 3,111.36 mi (5,007.25 km) |
| South Portland to Kenley | 3,193.13 mi (5,138.84 km) |
| South Portland to Kensington | 3,185.33 mi (5,126.29 km) |
| South Portland to Kenton | 3,178.53 mi (5,115.35 km) |
| South Portland to Kettering | 3,144.13 mi (5,059.98 km) |
| South Portland to Kew Green | 3,183.22 mi (5,122.89 km) |
| South Portland to Keynsham | 3,093.07 mi (4,977.82 km) |
