| Ottawa to Beyne-Heusay | 4,265.61 mi (6,864.84 km) |
| Ottawa to Bierbeek | 4,224.85 mi (6,799.25 km) |
| Ottawa to Bilzen | 4,251.57 mi (6,842.24 km) |
| Ottawa to Binche | 4,217.81 mi (6,787.92 km) |
| Ottawa to Bissegem | 4,167.30 mi (6,706.62 km) |
| Ottawa to Blankenberge | 4,146.78 mi (6,673.59 km) |
| Ottawa to Blegny | 4,266.89 mi (6,866.90 km) |
| Ottawa to Bocholt | 4,242.84 mi (6,828.19 km) |
| Ottawa to Boechout | 4,203.01 mi (6,764.09 km) |
| Ottawa to Bonheiden | 4,209.02 mi (6,773.76 km) |
| Ottawa to Boom | 4,201.03 mi (6,760.91 km) |
| Ottawa to Boortmeerbeek | 4,212.04 mi (6,778.62 km) |
| Ottawa to Borgerhout | 4,199.24 mi (6,758.02 km) |
| Ottawa to Borgloon | 4,247.46 mi (6,835.63 km) |
| Ottawa to Bornem | 4,195.47 mi (6,751.96 km) |
