| Willoughby to Friesoythe | 3,976.11 mi (6,398.94 km) |
| Willoughby to Fritzlar | 4,091.70 mi (6,584.96 km) |
| Willoughby to Frohburg | 4,216.65 mi (6,786.04 km) |
| Willoughby to Frondenberg | 4,023.03 mi (6,474.45 km) |
| Willoughby to Fulda | 4,126.56 mi (6,641.06 km) |
| Willoughby to Fuldabruck | 4,094.68 mi (6,589.75 km) |
| Willoughby to Fuldatal | 4,093.48 mi (6,587.82 km) |
| Willoughby to Furstenau | 3,985.24 mi (6,413.62 km) |
| Willoughby to Furstenfeldbruck | 4,272.19 mi (6,875.42 km) |
| Willoughby to Furstenwalde | 4,224.12 mi (6,798.07 km) |
| Willoughby to Furth | 4,123.41 mi (6,635.99 km) |
| Willoughby to Furth | 4,215.41 mi (6,784.05 km) |
| Willoughby to Furth im Wald | 4,291.36 mi (6,906.28 km) |
| Willoughby to Furtwangen im Schwarzwald | 4,156.73 mi (6,689.61 km) |
| Willoughby to Fussen | 4,272.84 mi (6,876.46 km) |
