| Willoughby to Grand Junction (Colorado) | 1,434.60 mi (2,308.77 km) |
| Willoughby to Grand Prairie (Texas) | 1,056.55 mi (1,700.35 km) |
| Willoughby to Grand Rapids (Michigan) | 235.30 mi (378.68 km) |
| Willoughby to Grand Rapids (Minnesota) | 710.80 mi (1,143.93 km) |
| Willoughby to Grand Terrace (California) | 2,012.72 mi (3,239.17 km) |
| Willoughby to Grandview (Missouri) | 716.55 mi (1,153.17 km) |
| Willoughby to Grandview (Washington) | 1,922.08 mi (3,093.29 km) |
| Willoughby to Grandville (Michigan) | 238.56 mi (383.92 km) |
| Willoughby to Granger (Indiana) | 243.91 mi (392.53 km) |
| Willoughby to Granite Bay (California) | 2,089.16 mi (3,362.18 km) |
| Willoughby to Granite City (Illinois) | 502.05 mi (807.97 km) |
| Willoughby to Grants Pass (Oregon) | 2,129.80 mi (3,427.59 km) |
| Willoughby to Grantsville (Utah) | 1,609.72 mi (2,590.59 km) |
| Willoughby to Grapevine (Texas) | 1,047.96 mi (1,686.54 km) |
| Willoughby to Grass Valley (California) | 2,073.19 mi (3,336.48 km) |
