| Portsmouth to Klaukkala | 1,194.17 mi (1,921.84 km) |
| Portsmouth to Kokkola | 1,260.69 mi (2,028.88 km) |
| Portsmouth to Kontiolahti | 1,411.04 mi (2,270.85 km) |
| Portsmouth to Korsholm | 1,195.36 mi (1,923.75 km) |
| Portsmouth to Kotka | 1,266.22 mi (2,037.78 km) |
| Portsmouth to Kouvola | 1,268.11 mi (2,040.82 km) |
| Portsmouth to Kuhmo | 1,438.69 mi (2,315.35 km) |
| Portsmouth to Kuopio | 1,351.40 mi (2,174.86 km) |
| Portsmouth to Kurikka | 1,195.50 mi (1,923.97 km) |
| Portsmouth to Kuusamo | 1,488.89 mi (2,396.14 km) |
| Portsmouth to Kuusankoski | 1,266.56 mi (2,038.33 km) |
| Portsmouth to Lahti | 1,238.11 mi (1,992.55 km) |
| Portsmouth to Laitila | 1,115.36 mi (1,795.00 km) |
| Portsmouth to Lapinlahti | 1,357.20 mi (2,184.21 km) |
| Portsmouth to Lappeenranta | 1,319.41 mi (2,123.39 km) |
