| Hartford to Klaukkala | 4,000.61 mi (6,438.36 km) |
| Hartford to Kokkola | 3,843.76 mi (6,185.94 km) |
| Hartford to Kontiolahti | 4,061.95 mi (6,537.08 km) |
| Hartford to Korsholm | 3,824.93 mi (6,155.63 km) |
| Hartford to Kotka | 4,062.48 mi (6,537.92 km) |
| Hartford to Kouvola | 4,041.47 mi (6,504.11 km) |
| Hartford to Kuhmo | 4,004.58 mi (6,444.74 km) |
| Hartford to Kuopio | 3,998.65 mi (6,435.21 km) |
| Hartford to Kurikka | 3,860.31 mi (6,212.57 km) |
| Hartford to Kuusamo | 3,932.45 mi (6,328.67 km) |
| Hartford to Kuusankoski | 4,037.73 mi (6,498.09 km) |
| Hartford to Lahti | 4,006.82 mi (6,448.35 km) |
| Hartford to Laitila | 3,893.12 mi (6,265.37 km) |
| Hartford to Lapinlahti | 3,974.41 mi (6,396.19 km) |
| Hartford to Lappeenranta | 4,077.03 mi (6,561.35 km) |
