Distance from Montréal-Est to National Harbor
The distance between Montréal-Est, Canada and National Harbor, United States is 813 km (505 miles) in a straight line. If a road route exists, expect roughly 1017 km (632 miles) by car — around 12 h 43 min of driving.
| Measure | Value |
|---|---|
| Straight-line distance | 813 km / 505 mi |
| Road distance (estimate) | ≈ 1017 km / 632 mi |
| Driving time (estimate) | ≈ 12 h 43 min |
| Flight time (estimate) | ≈ 1 h 27 min |
Road distance and travel times are estimates based on the straight-line distance (road factor 1.25, average speed 80 km/h) — actual routes vary.
| Place | Latitude | Longitude |
|---|---|---|
| Montréal-Est, Canada | 45.631256 | -73.495475 |
| National Harbor, United States | 38.790984 | -77.004259 |
Frequently asked questions
How far is National Harbor from Montréal-Est?
The straight-line (air) distance from Montréal-Est, Canada to National Harbor, United States is 813 km (505 miles). By road it is roughly 1017 km (632 miles), depending on the route.
How long does it take to drive from Montréal-Est to National Harbor?
Approximately 12 h 43 min, assuming an 80 km/h average over an estimated road distance of 1017 km. Actual time depends on the route, traffic and border crossings.
How long is the flight from Montréal-Est to National Harbor?
A direct flight covers 813 km in about 1 h 27 min at typical cruise speed, plus airport time. Not all city pairs have direct flights.
How do I calculate distances for a whole list of locations?
Upload a CSV or Excel spreadsheet to the batch distance calculator — it computes the distance for every origin–destination row at once. The first records are free to try.
Related distances
Distance from National Harbor to Montréal-Est (reverse route)
GPS coordinates of Montréal-Est GPS coordinates of National Harbor