| Gaithersburg to Fatima | 3,565.82 mi (5,738.64 km) |
| Gaithersburg to Felgueiras | 3,542.67 mi (5,701.37 km) |
| Gaithersburg to Ferreira do Zezere | 3,583.00 mi (5,766.28 km) |
| Gaithersburg to Figueira da Foz | 3,542.84 mi (5,701.65 km) |
| Gaithersburg to Funchal | 3,343.07 mi (5,380.15 km) |
| Gaithersburg to Fundao | 3,609.05 mi (5,808.20 km) |
| Gaithersburg to Gafanha da Nazare | 3,536.74 mi (5,691.84 km) |
| Gaithersburg to Gondomar | 3,532.16 mi (5,684.47 km) |
| Gaithersburg to Gouveia | 3,594.35 mi (5,784.54 km) |
| Gaithersburg to Grandola | 3,611.08 mi (5,811.48 km) |
| Gaithersburg to Guarda | 3,606.37 mi (5,803.90 km) |
| Gaithersburg to Guimaraes | 3,535.72 mi (5,690.19 km) |
| Gaithersburg to Horta | 2,582.86 mi (4,156.72 km) |
| Gaithersburg to Idanha-a-Nova | 3,627.91 mi (5,838.55 km) |
| Gaithersburg to Ilhavo | 3,539.95 mi (5,697.00 km) |
