| Donostia to Klaukkala | 1,618.66 mi (2,604.98 km) |
| Donostia to Kokkola | 1,727.91 mi (2,780.81 km) |
| Donostia to Kontiolahti | 1,849.08 mi (2,975.80 km) |
| Donostia to Korsholm | 1,660.88 mi (2,672.93 km) |
| Donostia to Kotka | 1,684.51 mi (2,710.96 km) |
| Donostia to Kouvola | 1,692.43 mi (2,723.70 km) |
| Donostia to Kuhmo | 1,891.42 mi (3,043.95 km) |
| Donostia to Kuopio | 1,796.48 mi (2,891.16 km) |
| Donostia to Kurikka | 1,654.00 mi (2,661.85 km) |
| Donostia to Kuusamo | 1,958.16 mi (3,151.36 km) |
| Donostia to Kuusankoski | 1,691.65 mi (2,722.45 km) |
| Donostia to Lahti | 1,667.31 mi (2,683.27 km) |
| Donostia to Laitila | 1,557.72 mi (2,506.91 km) |
| Donostia to Lapinlahti | 1,807.95 mi (2,909.62 km) |
| Donostia to Lappeenranta | 1,741.82 mi (2,803.19 km) |
