Direct flights from Knoxville to Dulles
All flights from TYS to IAD non-stop. There are direct flights from Mc Ghee Tyson (TYS), Tennessee, USA to Washington Dulles International (IAD), Virginia, USA with United Airlines and Allegiant Air. 30 weekly departures are currently scheduled on this route. Departure times range from 05:45 to 19:35 depending on the schedule period. The flight distance is 421 miles (677 km). Flight time ranges from 1 hour and 26 minutes to 1 hour and 46 minutes.
Knoxville
, USA
Flight schedule from Knoxville to Dulles with United Airlines
This is a weekly direct flight schedule for United Airlines. Use the arrows or click on the date to change week. Click on any flight departure time to show more information and check availability.
Flight
The timetable & schedule information was updated at 2026-07-13
Flight schedule from Knoxville to Dulles with Allegiant Air
This is a weekly direct flight schedule for Allegiant Air. Use the arrows or click on the date to change week. Click on any flight departure time to show more information and check availability.
Flight
The timetable & schedule information was updated at
Knoxville to Dulles scheduled departures
Select a date to see every published non-stop departure between TYS and IAD.
TYS - IAD route facts
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Distance421 miles (677 km)
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Flight time1 hour and 26 minutes to 1 hour and 46 minutes
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Airlines United
Allegiant -
Airline alliancesStar Alliance Low-cost carrier
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CabinsEconomy First
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Hub airportsUnited Airlines: IAD (Secondary hub.)
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AircraftUnited Airlines: Embraer RJ135 / RJ140 / RJ145 and Embraer 175 (Enhanced Winglets)Allegiant Air: Airbus A320
