Knoxville/Maryville to Dulles (TYS–IAD) — Airlines, Schedules & Connections
No flights match your filters.
No scheduled airline flights on this route — it's flown by charter / private operators (). No nonstop flights on this route. connecting options below.
Most recently operated nonstop flights — the month shown is when each was last scheduled. Most destinations remain reachable with a connection.
No discontinued nonstop flights on record for this route.
TYS–IAD is served by 2 airlines with nonstop service. United Airlines and Allegiant Air lead the route. The flight covers 419 miles in approximately 1h 45m. Beyond nonstop, 1-stop connecting options are also available.
Airline Landscape
| Airline | Freq/wk | Aircraft | Duration | Dep OTP | Alliance | Codeshares |
|---|---|---|---|---|---|---|
| UA United Airlines Also: AC, AV, CM, ET, SN | 28 | E145, E7W, ERJ | 1h32-1h46 | Star Alliance | AC, AV, CM, ET, SN | |
| G4 Allegiant Air | 2 | 320 | 1h26 | – | – |
Weekly Schedule Pattern
Connection Landscape
On-Time Performance
Other ways to reach Dulles from Knoxville/Maryville
| Metric | TYS→IAD | AVL→IAD | CHA→IAD |
|---|---|---|---|
| Distance from TYS | – | 86 mi | 87 mi |
| Nonstop airlines | 2 | 8 | 5 |
| Weekly flights | 100 | 1 | 1 |
| Flight time | 1h 45m | 1h 16m | 1h 6m |
| Departure OTP | 88% | – | – |
Travel Essentials
TYS: EDT · IAD: EDT
When it's 6:00 PM in Knoxville/Maryville, it's 6:00 PM in Dulles.
Silver Line Metro runs from Washington Dulles Airport station to Metro Center in about 65 minutes (~$7). The route bypasses I-66 and I-495 congestion entirely. Washington Flyer coach also runs to Wiehle-Reston East station ($6, 15 min) for Metro connection.Taxis and ride-shares to downtown DC cost $55–80 and take 35–55 minutes depending on traffic. Car rental facilities are on-site. Dulles is 27 miles west of the Capitol; it is farther than either DCA or BWI from central DC.
Humid continental climate. Summers are hot and muggy (30–36°C) with frequent afternoon thunderstorms that cause delays June through August. Winters bring cold temperatures (−3 to 5°C) with snow and ice. The Virginia suburbs accumulate more snow than downtown DC, and ice storms are the primary disruption risk.
Dulles sits at higher elevation in Virginia's piedmont and sees more winter precipitation than DCA. Spring and fall are variable. Snowfall is possible into April. Thunderstorms begin from April through May.
TYS–IAD Quick Facts
Frequently Asked Questions
Flights from TYS to IAD
McGhee Tyson Airport (TYS) and Washington Dulles International Airport (IAD) are connected by nonstop service from United Airlines and Allegiant Air. With 100 weekly departures, this is a heavily served route.
TYS to IAD Flight Duration and Schedule
Nonstop flight time from TYS to IAD is about 1 hours 45 minutes gate to gate. The route covers a distance of 419 miles (674 km). There are approximately 100 weekly flights outbound and 73 return, totaling 173 flights per week in both directions.
Connecting Options and Alternatives
1-stop connecting options are also available, commonly via Hartsfield Jackson Atlanta, Nashville and Charlotte Douglas. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Asheville (AVL), Chattanooga (CHA) and Blountville (TRI).