Decatur, Alabama to Gaithersburg: Road Trip Guide & Distance

624.4 miles 1004.9 km · straight line
749.3 miles estimated 1205.9 km · driving distance
15h 4min estimated drive time
$72 - $89 estimated fuel cost
~1h 45min flight time
57° ENE bearing direction

How far is Decatur, Alabama from Gaithersburg?

The distance from Decatur, Alabama to Gaithersburg is 624.4 miles (1004.9 km) as the crow flies. Gaithersburg is located ENE of Decatur, Alabama. By car, the driving distance is approximately 749.3 miles, taking about 15h 4min. A direct flight would take roughly 1h 45min. Both are located in United States — Decatur, Alabama in Alabama and Gaithersburg in Maryland.

This is a serious multi-day road trip! We strongly recommend breaking this journey up with an overnight stay to ensure you arrive safely and refreshed. Heading East means you'll be driving into the sunrise if you start early. Keep your windshield clean for the best visibility.

Coordinates come from public place data for Decatur, Alabama and Gaithersburg. The driving distance is estimated from straight-line distance with a road-factor model, so confirm the route in your navigation app. Fuel, flight, bus, and train values are planning estimates and can change by date, provider, road closures, and border rules.

How to Get from Decatur, Alabama to Gaithersburg

Method Time Est. Cost Best For
Drive 15h 4min $72 - $89 Flexible stops
Fly ~1h 45min $80–200* Speed
Bus ~18h 5min $60–$112* Budget
Train ~19h 35min $90–$262* Comfort

Suggested Stops Between Decatur, Alabama & Gaithersburg

Quick Facts

Decatur, Alabama
34.61°N, 86.98°W
America/Chicago
171m elevation
Gaithersburg
39.14°N, 77.20°W
America/New_York
153m elevation
Explore more routes from Gaithersburg

Did You Know?

  • At walking speed (3 mph), it would take about 208 hours of non-stop walking
  • By bicycle at 12 mph, the journey would take roughly 52 hours
  • You could travel this distance about 39.9 times to circle the Earth's equator
Data Sources & Estimate Notes GeoNames · OpenStreetMap · Driving distance estimated using road factor coefficients