| Allentown to Floha | 4,068.23 mi (6,547.18 km) |
| Allentown to Florsheim | 3,911.18 mi (6,294.43 km) |
| Allentown to Florstadt | 3,919.54 mi (6,307.89 km) |
| Allentown to Forchheim | 4,025.16 mi (6,477.87 km) |
| Allentown to Foritz | 4,012.76 mi (6,457.91 km) |
| Allentown to Forst (Lausitz) | 4,099.68 mi (6,597.79 km) |
| Allentown to Frankenberg | 4,065.18 mi (6,542.27 km) |
| Allentown to Frankenberg | 3,895.13 mi (6,268.60 km) |
| Allentown to Frankenthal | 3,922.14 mi (6,312.07 km) |
| Allentown to Frankfurt | 3,918.38 mi (6,306.03 km) |
| Allentown to Frankfurt (Oder) | 4,076.97 mi (6,561.25 km) |
| Allentown to Frechen | 3,820.69 mi (6,148.81 km) |
| Allentown to Freiberg | 4,076.92 mi (6,561.16 km) |
| Allentown to Freiberg am Neckar | 3,974.75 mi (6,396.75 km) |
| Allentown to Freiburg im Breisgau | 3,947.93 mi (6,353.58 km) |
