| Gaithersburg to Land O' Lakes (Florida) | 812.37 mi (1,307.38 km) |
| Gaithersburg to Landover (Maryland) | 22.74 mi (36.59 km) |
| Gaithersburg to Langley Park (Maryland) | 15.99 mi (25.73 km) |
| Gaithersburg to Lanham (Maryland) | 23.21 mi (37.35 km) |
| Gaithersburg to Lansdale (Pennsylvania) | 128.07 mi (206.10 km) |
| Gaithersburg to Lansdowne (Pennsylvania) | 117.29 mi (188.75 km) |
| Gaithersburg to Lansdowne (Virginia) | 14.93 mi (24.02 km) |
| Gaithersburg to Lansing (Illinois) | 569.00 mi (915.72 km) |
| Gaithersburg to Lansing (Kansas) | 945.54 mi (1,521.70 km) |
| Gaithersburg to Lansing (Michigan) | 456.11 mi (734.04 km) |
| Gaithersburg to Lantana (Florida) | 882.63 mi (1,420.45 km) |
| Gaithersburg to Lantana (Texas) | 1,183.96 mi (1,905.40 km) |
| Gaithersburg to Laplace (Louisiana) | 978.36 mi (1,574.52 km) |
| Gaithersburg to Laramie (Wyoming) | 1,498.82 mi (2,412.11 km) |
| Gaithersburg to Laredo (Texas) | 1,507.56 mi (2,426.18 km) |
