Direct flights from Washington Dulles to Knoxville
29 nonstop flights a week on 2 airlines. Zero layovers — one hop from IAD to TYS.
Flight time: about 1h10m nonstop
Which days does it fly?
When does it fly?
Departure times in Washington Dulles local time, from flights observed over the last 7 days.
| Flight | Departs | Duration | Days |
|---|---|---|---|
| United UCA4257 | 9:01a | 1h10m | Sat |
| United UCA4257 | 9:12a | 1h10m | Mon, Tue, Sun |
| United UCA4257 | 9:17a | 1h10m | Wed–Fri |
| Mesa ASH4070 | 1:04p | 1h10m | Wed |
| Mesa ASH4070 | 1:07p | 1h10m | Mon, Tue, Fri, Sat, Sun |
| Mesa ASH4070 | 1:20p | 1h10m | Thu |
| Allegiant AAY3026 | 4:20p | 1h24m | Thu |
| United UCA4914 | 6:41p | 1h10m | Wed |
| United UCA4914 | 6:47p | 1h10m | Mon, Tue, Thu, Fri, Sun |
| United UCA4914 | 10:12p | 1h10m | Sat |
| United UCA4304 | 10:22p | 1h10m | Mon–Thu |
| United UCA4304 | 10:33p | 1h10m | Sat |
| United UCA4304 | 10:35p | 1h23m | Fri |
| United UCA4304 | 11:02p | 1h10m | Sun |
Allegiant
UnitedThe route
One hop: IAD → TYSDrag to pan · scroll with ⌘/Ctrl to zoom · arrow keys when focused
Nonstop from Washington Dulles (IAD) to Knoxville (TYS)
Washington Dulles International Airport (IAD) has 29 nonstop flights a week to Knoxville (TYS), operated by Allegiant and United. No layovers, no connections — one hop out of IAD and you're there.
This route flies every day of the week, so any travel day works. Route data updated October 2026 from observed departures.
Route data updated October 2026 from observed flight departures. Schedules change — always confirm with the airline before booking.
How long is the flight from Washington Dulles to Knoxville?
The nonstop flight from Washington Dulles (IAD) to Knoxville (TYS) takes about 1h10m in the air, based on recently observed nonstop departures.
How long does it take to drive from Washington Dulles to Knoxville?
Driving from Washington Dulles to Knoxville takes about 6h 59m, covering roughly 472 miles. The nonstop flight takes about 1h10m.