Washington (IAD) to Knoxville/Maryville (TYS) flights
Nonstop from Washington Dulles International to McGhee Tyson Airport: distance, flying time, which airlines fly it and how often.
Distance
419 mi, great circle
Flying time
typical, gate to gate
Flights a day
average, November 2026
Airlines
passenger airlines
Airlines flying IAD to TYS
Also in the data (cargo, charter or a foreign airline on a domestic route): Mesa Airlines.
Route map
The shortest path over the Earth's surface. Actual tracks vary with winds and airspace. Map © OpenStreetMap contributors.
Cheapest recent fare
Fares found in recent searches load here. You can also compare IAD to TYS fares by month.
Both directions
- McGhee Tyson Airport (TYS) · we don't have TYS's route list yet
- All nonstop routes from Washington (IAD)
- IAD to TYS on the flight-path tool
Frequently asked questions
How long is the flight from Washington to Knoxville/Maryville?
About 1h 33m gate to gate for the 674 km (419 mile) trip, estimated from distance. Schedules vary by airline and season, and winds can add or save time.
Which airlines fly nonstop from IAD to TYS?
Allegiant Air and United Airlines, with about 4.9 flights a day between them in our data (AeroDataBox, November 2026).