| Duncan to Foix | 5,067.45 mi (8,155.27 km) |
| Duncan to Fondettes | 4,866.96 mi (7,832.61 km) |
| Duncan to Fonsorbes | 5,030.58 mi (8,095.94 km) |
| Duncan to Fontaine | 5,153.72 mi (8,294.11 km) |
| Duncan to Fontaine-les-Dijon | 5,045.41 mi (8,119.80 km) |
| Duncan to Fontainebleau | 4,915.31 mi (7,910.43 km) |
| Duncan to Fontenay-aux-Roses | 4,885.60 mi (7,862.62 km) |
| Duncan to Fontenay-le-Comte | 4,841.75 mi (7,792.04 km) |
| Duncan to Fontenay-le-Fleury | 4,875.35 mi (7,846.12 km) |
| Duncan to Fontenay-sous-Bois | 4,890.75 mi (7,870.90 km) |
| Duncan to Forbach | 5,047.70 mi (8,123.48 km) |
| Duncan to Fos-sur-Mer | 5,190.17 mi (8,352.76 km) |
| Duncan to Fosses | 4,883.16 mi (7,858.69 km) |
| Duncan to Fouesnant | 4,662.46 mi (7,503.51 km) |
| Duncan to Fougeres | 4,762.21 mi (7,664.03 km) |
