| Duluth to Bougival | 4,075.76 mi (6,559.30 km) |
| Duluth to Bouguenais | 4,005.87 mi (6,446.82 km) |
| Duluth to Boulogne-Billancourt | 4,080.68 mi (6,567.22 km) |
| Duluth to Boulogne-sur-Mer | 3,980.33 mi (6,405.73 km) |
| Duluth to Bourg-de-Peage | 4,348.27 mi (6,997.87 km) |
| Duluth to Bourg-en-Bresse | 4,302.93 mi (6,924.90 km) |
| Duluth to Bourg-la-Reine | 4,085.70 mi (6,575.29 km) |
| Duluth to Bourg-les-Valence | 4,346.53 mi (6,995.07 km) |
| Duluth to Bourges | 4,160.33 mi (6,695.40 km) |
| Duluth to Bourgoin-Jallieu | 4,332.11 mi (6,971.85 km) |
| Duluth to Bressuire | 4,062.64 mi (6,538.19 km) |
| Duluth to Brest | 3,848.75 mi (6,193.97 km) |
| Duluth to Bretigny-sur-Orge | 4,092.41 mi (6,586.10 km) |
| Duluth to Breuillet | 4,089.42 mi (6,581.29 km) |
| Duluth to Briancon | 4,413.43 mi (7,102.73 km) |
