| Gaithersburg to Glyka Nera | 5,131.11 mi (8,257.72 km) |
| Gaithersburg to Grevena | 4,940.40 mi (7,950.80 km) |
| Gaithersburg to Ialysos | 5,383.62 mi (8,664.09 km) |
| Gaithersburg to Ilion | 5,122.96 mi (8,244.61 km) |
| Gaithersburg to Ilioupoli | 5,129.34 mi (8,254.88 km) |
| Gaithersburg to Ioannina | 4,932.80 mi (7,938.57 km) |
| Gaithersburg to Irakleio | 5,300.60 mi (8,530.48 km) |
| Gaithersburg to Irakleio | 5,125.13 mi (8,248.10 km) |
| Gaithersburg to Kaisariani | 5,128.22 mi (8,253.07 km) |
| Gaithersburg to Kalamaria | 4,984.58 mi (8,021.90 km) |
| Gaithersburg to Kalamata | 5,095.56 mi (8,200.51 km) |
| Gaithersburg to Kallithea | 5,126.48 mi (8,250.27 km) |
| Gaithersburg to Kalymnos | 5,308.68 mi (8,543.49 km) |
| Gaithersburg to Kalyvia Thorikou | 5,140.76 mi (8,273.25 km) |
| Gaithersburg to Kamatero | 5,122.36 mi (8,243.65 km) |
