| Willoughby to Washington (Illinois) | 422.25 mi (679.55 km) |
| Willoughby to Washington (Indiana) | 367.06 mi (590.73 km) |
| Willoughby to Washington (Missouri) | 550.52 mi (885.98 km) |
| Willoughby to Washington (Pennsylvania) | 118.41 mi (190.57 km) |
| Willoughby to Washington (Utah) | 1,730.87 mi (2,785.57 km) |
| Willoughby to Washington Court House (Ohio) | 180.09 mi (289.83 km) |
| Willoughby to Washougal (Washington) | 2,043.25 mi (3,288.30 km) |
| Willoughby to Watauga (Texas) | 1,058.64 mi (1,703.72 km) |
| Willoughby to Waterbury (Connecticut) | 432.44 mi (695.94 km) |
| Willoughby to Waterloo (Illinois) | 515.86 mi (830.19 km) |
| Willoughby to Waterloo (Iowa) | 563.95 mi (907.59 km) |
| Willoughby to Watertown (New York) | 321.69 mi (517.72 km) |
| Willoughby to Watertown (South Dakota) | 821.97 mi (1,322.83 km) |
| Willoughby to Watertown (Wisconsin) | 388.16 mi (624.69 km) |
| Willoughby to Watertown Town (Massachusetts) | 527.31 mi (848.63 km) |
