| Donostia to Buenaventura Lakes (Florida) | 4,398.42 mi (7,078.58 km) |
| Donostia to Buffalo (Minnesota) | 4,282.40 mi (6,891.86 km) |
| Donostia to Buffalo (New York) | 3,729.43 mi (6,001.94 km) |
| Donostia to Buffalo Grove (Illinois) | 4,153.14 mi (6,683.83 km) |
| Donostia to Buford (Georgia) | 4,287.93 mi (6,900.76 km) |
| Donostia to Bull Run (Virginia) | 3,810.99 mi (6,133.20 km) |
| Donostia to Bullhead City (Arizona) | 5,556.85 mi (8,942.88 km) |
| Donostia to Burbank (California) | 5,748.36 mi (9,251.10 km) |
| Donostia to Burbank (Illinois) | 4,160.86 mi (6,696.27 km) |
| Donostia to Burien (Washington) | 5,189.05 mi (8,350.97 km) |
| Donostia to Burkburnett (Texas) | 4,948.72 mi (7,964.19 km) |
| Donostia to Burke (Virginia) | 3,799.20 mi (6,114.23 km) |
| Donostia to Burke Centre (Virginia) | 3,800.44 mi (6,116.21 km) |
| Donostia to Burleson (Texas) | 4,964.17 mi (7,989.05 km) |
| Donostia to Burley (Idaho) | 5,158.08 mi (8,301.13 km) |
