| Didcot to Bailey's Crossroads (Virginia) | 3,623.53 mi (5,831.51 km) |
| Didcot to Bainbridge (Georgia) | 4,306.36 mi (6,930.42 km) |
| Didcot to Bainbridge Island (Washington) | 4,752.98 mi (7,649.18 km) |
| Didcot to Baker (Louisiana) | 4,591.29 mi (7,388.96 km) |
| Didcot to Bakersfield (California) | 5,351.30 mi (8,612.08 km) |
| Didcot to Balch Springs (Texas) | 4,697.93 mi (7,560.59 km) |
| Didcot to Baldwin (New York) | 3,399.92 mi (5,471.65 km) |
| Didcot to Baldwin (Pennsylvania) | 3,670.17 mi (5,906.56 km) |
| Didcot to Baldwin Park (California) | 5,389.57 mi (8,673.68 km) |
| Didcot to Ballenger Creek (Maryland) | 3,611.48 mi (5,812.12 km) |
| Didcot to Ballwin (Missouri) | 4,169.46 mi (6,710.09 km) |
| Didcot to Baltimore (Maryland) | 3,581.97 mi (5,764.63 km) |
| Didcot to Bangor (Maine) | 3,031.92 mi (4,879.40 km) |
| Didcot to Banning (California) | 5,362.31 mi (8,629.80 km) |
| Didcot to Baraboo (Wisconsin) | 3,908.09 mi (6,289.47 km) |
