| Willoughby to Yonkers (New York) | 394.30 mi (634.57 km) |
| Willoughby to Yorba Linda (California) | 2,040.64 mi (3,284.09 km) |
| Willoughby to York (Pennsylvania) | 270.71 mi (435.67 km) |
| Willoughby to Yorktown (Indiana) | 236.89 mi (381.23 km) |
| Willoughby to Yorkville (Illinois) | 363.47 mi (584.95 km) |
| Willoughby to Youngstown (Ohio) | 54.66 mi (87.97 km) |
| Willoughby to Youngsville (Louisiana) | 992.39 mi (1,597.10 km) |
| Willoughby to Ypsilanti (Michigan) | 120.97 mi (194.68 km) |
| Willoughby to Yuba City (California) | 2,104.95 mi (3,387.58 km) |
| Willoughby to Yucaipa (California) | 1,998.72 mi (3,216.63 km) |
| Willoughby to Yucca Valley (California) | 1,964.01 mi (3,160.76 km) |
| Willoughby to Yukon (Oklahoma) | 977.37 mi (1,572.92 km) |
| Willoughby to Yulee (Florida) | 760.83 mi (1,224.44 km) |
| Willoughby to Yuma (Arizona) | 1,915.92 mi (3,083.38 km) |
| Willoughby to Zachary (Louisiana) | 932.34 mi (1,500.46 km) |
