| Williamsport to Brown Deer (Wisconsin) | 575.07 mi (925.48 km) |
| Williamsport to Brownsburg (Indiana) | 500.02 mi (804.71 km) |
| Williamsport to Brownsville (Florida) | 1,080.95 mi (1,739.62 km) |
| Williamsport to Brownsville (Texas) | 1,570.38 mi (2,527.28 km) |
| Williamsport to Brownwood (Texas) | 1,379.70 mi (2,220.41 km) |
| Williamsport to Brunswick (Georgia) | 739.80 mi (1,190.60 km) |
| Williamsport to Brunswick (Ohio) | 248.45 mi (399.84 km) |
| Williamsport to Brushy Creek (Texas) | 1,370.19 mi (2,205.10 km) |
| Williamsport to Bryan (Texas) | 1,300.75 mi (2,093.36 km) |
| Williamsport to Bryant (Arkansas) | 956.59 mi (1,539.48 km) |
| Williamsport to Bryn Mawr-Skyway (Washington) | 2,241.36 mi (3,607.12 km) |
| Williamsport to Buckeye (Arizona) | 2,013.62 mi (3,240.61 km) |
| Williamsport to Buckhall (Virginia) | 175.19 mi (281.94 km) |
| Williamsport to Bucyrus (Ohio) | 310.76 mi (500.12 km) |
| Williamsport to Buda (Texas) | 1,394.23 mi (2,243.80 km) |
