| Southborough to Klaukkala | 1,134.69 mi (1,826.10 km) |
| Southborough to Kokkola | 1,206.87 mi (1,942.28 km) |
| Southborough to Kontiolahti | 1,353.32 mi (2,177.96 km) |
| Southborough to Korsholm | 1,141.12 mi (1,836.46 km) |
| Southborough to Kotka | 1,206.33 mi (1,941.39 km) |
| Southborough to Kouvola | 1,208.75 mi (1,945.29 km) |
| Southborough to Kuhmo | 1,382.87 mi (2,225.51 km) |
| Southborough to Kuopio | 1,294.42 mi (2,083.16 km) |
| Southborough to Kurikka | 1,140.10 mi (1,834.81 km) |
| Southborough to Kuusamo | 1,435.81 mi (2,310.71 km) |
| Southborough to Kuusankoski | 1,207.27 mi (1,942.91 km) |
| Southborough to Lahti | 1,179.16 mi (1,897.67 km) |
| Southborough to Laitila | 1,057.58 mi (1,702.01 km) |
| Southborough to Lapinlahti | 1,300.98 mi (2,093.72 km) |
| Southborough to Lappeenranta | 1,259.97 mi (2,027.72 km) |
