| Olecko to Chaudfontaine | 749.19 mi (1,205.71 km) |
| Olecko to Chaumont-Gistoux | 783.72 mi (1,261.28 km) |
| Olecko to Chimay | 817.54 mi (1,315.70 km) |
| Olecko to Ciney | 778.81 mi (1,253.37 km) |
| Olecko to Colfontaine | 825.38 mi (1,328.32 km) |
| Olecko to Courcelles | 802.94 mi (1,292.20 km) |
| Olecko to Court-Saint-Etienne | 790.27 mi (1,271.81 km) |
| Olecko to Couvin | 810.93 mi (1,305.07 km) |
| Olecko to Damme | 825.50 mi (1,328.52 km) |
| Olecko to De Haan | 835.02 mi (1,343.84 km) |
| Olecko to De Panne | 857.14 mi (1,379.43 km) |
| Olecko to De Pinte | 817.07 mi (1,314.95 km) |
| Olecko to Deerlijk | 832.88 mi (1,340.40 km) |
| Olecko to Deinze | 822.20 mi (1,323.21 km) |
| Olecko to Denderleeuw | 802.73 mi (1,291.88 km) |
