| Mason City to Klaukkala | 4,478.28 mi (7,207.10 km) |
| Mason City to Kokkola | 4,276.38 mi (6,882.16 km) |
| Mason City to Kontiolahti | 4,476.26 mi (7,203.84 km) |
| Mason City to Korsholm | 4,276.21 mi (6,881.89 km) |
| Mason City to Kotka | 4,526.66 mi (7,284.96 km) |
| Mason City to Kouvola | 4,501.14 mi (7,243.88 km) |
| Mason City to Kuhmo | 4,400.47 mi (7,081.88 km) |
| Mason City to Kuopio | 4,422.91 mi (7,117.99 km) |
| Mason City to Kurikka | 4,315.99 mi (6,945.92 km) |
| Mason City to Kuusamo | 4,301.71 mi (6,922.94 km) |
| Mason City to Kuusankoski | 4,497.26 mi (7,237.64 km) |
| Mason City to Lahti | 4,470.63 mi (7,194.78 km) |
| Mason City to Laitila | 4,379.44 mi (7,048.03 km) |
| Mason City to Lapinlahti | 4,393.04 mi (7,069.92 km) |
| Mason City to Lappeenranta | 4,525.48 mi (7,283.05 km) |
