Distance from TRI to IAD
Driving route: -- ( - )
Driving route: -- ( - )
Extended route information
The flight distance between airports Tri Cities Regional Tn Va Airport (TRI) and Washington Dulles International Airport (IAD) is 515.39 km. This corresponds to an approximate flight time of 1h 6min. Similar flight routes: TRI → DCA , TRI → BWI , TRI → RIC , TRI → PHL , AVL → IAD
Bearing: 57.77° (ENE)The initial bearing on the course from TRI to IAD is 57.77° and the compass direction is ENE.
Midpoint: 37.73574,-79.97288The geographic midpoint between TRI and IAD is in 257.39 km distance between both points in a bearing of 57.77°. It is located in United States of America, Virginia, Alleghany County.
Distance: 514.78 kmThe shortest distance (air line) between TRI and IAD is 514.78 km.
Driving route: -- ( - )The shortest route between TRI and IAD is according to the route planner. The driving time is approx. . Half of the trip is reached in .
Time difference: 0hTRI and IAD are both in the same time zone America/New_York.
How is the distance calculated?
To calculate the distance between TRI and IAD, the place names are converted into coordinates (latitude and longitude). The respective geographic centre is used for cities, regions and countries. To calculate the distance the Haversine formula is applied.