There are
2,760 mi
from Gaithersburg, MD to Olympia, WA
That's the driving distance. It would take 2 days 1 hour to go from Gaithersburg, Maryland to Olympia, Washington.
The flight distance (direct flight from Gaithersburg, MD to Olympia, WA) is 2,334.39 mi.
2,760 mi = 4,442.47 kms