Direct (nonstop) flights from Knoxville to Dulles
2 airlines fly nonstop from Mc Ghee Tyson (TYS) to Washington Dulles International (IAD). It's 420 miles (676 km), about 1h 35m in the air. Operated by Allegiant Air, United Airlines.
Allegiant Air
United Airlines
Route data last updated: May 31, 2026
Airlines with non-stop flights
UA
United Airlines
Alternative Routes
Other ways to fly from Knoxville to Dulles with one stop · direct emits 78 kg CO₂ per passenger
Looking for the return flight?
IAD → TYS: Flights from Dulles to KnoxvilleOther direct flights from Knoxville
Direct flights from Dulles (IAD)
Frequently Asked Questions
How long is the direct flight from Knoxville to Dulles?
A nonstop flight from Knoxville (TYS) to Dulles (IAD) takes approximately 1 hours and 35 minutes. The distance is 420 miles (676 km).
Which airlines fly nonstop from Knoxville to Dulles?
2 airlines: Allegiant Air, United Airlines.
Is there a nonstop flight from Knoxville to Dulles?
Yes. 2 airlines: Allegiant Air, United Airlines.
How far is Knoxville from Dulles?
The flight distance from Knoxville to Dulles is 420 miles (676 km), measured as the great-circle (shortest air) distance. That's roughly the same distance as Mumbai to Goa.
What type of aircraft flies from Knoxville to Dulles?
At 1h 35m, this route typically uses narrow-body aircraft — Boeing 737 or Airbus A320. Varies by airline.
What is the carbon footprint of a flight from Knoxville to Dulles?
Roughly 78 kg CO2 per passenger one-way. That's about the same as driving 390 km.
Is the return flight from Dulles to Knoxville also nonstop?
Yes — nonstop flights run both ways. Flight time may differ slightly due to wind patterns.
When is the cheapest time to fly from Knoxville to Dulles?
Midweek flights (Tue/Wed) outside holiday peaks are usually cheapest. 3-6 weeks ahead is a good window for this route. Use "Check Prices" above to compare.
How early should I arrive at Mc Ghee Tyson for this flight?
1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.