| Allentown to Friesoythe | 3,803.64 mi (6,121.37 km) |
| Allentown to Fritzlar | 3,912.09 mi (6,295.91 km) |
| Allentown to Frohburg | 4,041.91 mi (6,504.83 km) |
| Allentown to Frondenberg | 3,842.75 mi (6,184.31 km) |
| Allentown to Fulda | 3,944.81 mi (6,348.55 km) |
| Allentown to Fuldabruck | 3,916.02 mi (6,302.22 km) |
| Allentown to Fuldatal | 3,915.28 mi (6,301.03 km) |
| Allentown to Furstenau | 3,809.96 mi (6,131.54 km) |
| Allentown to Furstenfeldbruck | 4,082.22 mi (6,569.69 km) |
| Allentown to Furstenwalde | 4,058.03 mi (6,530.76 km) |
| Allentown to Furth | 3,936.03 mi (6,334.43 km) |
| Allentown to Furth | 4,030.78 mi (6,486.92 km) |
| Allentown to Furth im Wald | 4,109.12 mi (6,612.99 km) |
| Allentown to Furtwangen im Schwarzwald | 3,961.13 mi (6,374.83 km) |
| Allentown to Fussen | 4,079.24 mi (6,564.90 km) |
