Knoxville/Maryville to Dulles (TYS–IAD) — Airlines, Schedules & Connections
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No nonstop flights on this route. connecting options below.
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. Beyond nonstop, 112 hubs offer 1-stop connections.
Airline Landscape
| Airline | Freq/wk | Aircraft | Duration | Dep OTP | Alliance | Codeshares |
|---|---|---|---|---|---|---|
| UA United Airlines Also: AV, CM, ET, SN | 32 | E145, E7W, ERJ | 1h30-1h48 | Star Alliance | AV, CM, ET, SN | |
| G4 Allegiant Air | 4 | 320 | 1h23-1h44 | – | – |
Weekly Schedule Pattern
Connection Landscape
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 | 5 | 2 |
| Weekly flights | 80 | 4 | – |
| Flight time | 1h | 1h 25m | 1h 8m |
| Departure OTP | 86% | – | – |
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 Allegiant Air and United Airlines. With 80 weekly departures, this is a heavily served route.
TYS to IAD Flight Duration and Schedule
Nonstop flight time from TYS to IAD ranges from 1 hours 0 minutes to 1 hours 48 minutes. The route covers a distance of 419 miles (674 km). There are approximately 80 weekly flights outbound and 90 return, totaling 170 flights per week in both directions.
Connecting Options and Alternatives
112 one-stop connections are available, with the fastest taking approximately 2 hours via CHA. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Asheville (AVL), Chattanooga (CHA) and Blountville (TRI).