Direct flights from Dulles to Knoxville
All flights from IAD to TYS non-stop. There are direct flights from Washington Dulles International (IAD), Virginia, USA to Mc Ghee Tyson (TYS), Tennessee, USA with United Airlines and Allegiant Air. 30 weekly departures are currently scheduled on this route. Departure times range from 08:16 to 22:15 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 53 minutes.
Dulles
, USA
Flight schedule from Dulles to Knoxville 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 Dulles to Knoxville 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
Dulles to Knoxville scheduled departures
Select a date to see every published non-stop departure between IAD and TYS.
IAD - TYS route facts
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Distance421 miles (677 km)
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Flight time1 hour and 26 minutes to 1 hour and 53 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, Embraer 175 (Enhanced Winglets) and Canadair (Bombardier) Regional Jet 550Allegiant Air: Airbus A320
Route FAQ
Nearby airports that offer flights to Knoxville (TYS)
From Reagan National (DCA)
21 flights per week
Direct flights from Dulles to TN, USA
From Dulles to Nashville
BNA Nashville International
From Dulles to Bristol, VA/Johnson City/Kingsport
TRI Tri-Cities Regional Airport
