The flight distance from Helena, Montana to Seattle, Washington is:

490 miles / 789 km

Rooms:     Travelers:
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Flight path from Helena, MT to Seattle, WA

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Distance from Helena, MT to Seattle, WA

The total distance from Helena, MT to Seattle, WA is 490 miles.

This is equivalent to 789 kilometers or 426 nautical miles.

Your trip begins in Helena, Montana.
It ends in Seattle, Washington.

Your flight direction from Helena, MT to Seattle, WA is West (-78 degrees from North).

The distance calculator helps you figure out how far it is to fly from Helena, MT to Seattle, WA. It does this by computing the straight line flying distance ("as the crow flies"). It uses the great circle formula to compute the total travel mileage.

Helena, Montana

City: Helena
State: Montana
Country: United States
Category: cities

Seattle, Washington

City: Seattle
State: Washington
Country: United States
Category: cities

Flight distance calculator

Travelmath provides an online flight distance calculator to get the distance between cities. You can also compare all types of locations including airports, cities, states, countries, or zip codes to find the distance between any two points. The database uses the latitude and longitude of each location to calculate distance using the great circle distance formula. The calculation is done using the Vincenty algorithm and the WGS84 ellipsoid model of the Earth, which is the same one used by most GPS receivers. This gives you the flying distance "as the crow flies." Find your flight distances quickly to estimate the number of frequent flyer miles you'll accumulate. Or ask how far is it between cities to solve your homework problems. You can lookup U.S. cities, or expand your search to get the world distance for international trips.