$34 Find Cheap Flights from Knoxville to Washington Dulles Airport - Compare and Save

Among airlines operating Knoxville to Washington, D.C. Dulles Intl Airport flights:

• United Airlines: offers extra legroom; offers free seat selection

Extra legroom and free seat selection availability depends on fare class and route.

2 airlines operate flights between Knoxville and Washington, D.C. Dulles Intl Airport. The airlines offering nonstop flights on this route include:

• United Airlines
• Allegiant Air

Flights from Knoxville to Washington, D.C. Dulles Intl Airport usually depart from Knoxville McGhee Tyson (TYS) and arrive at Washington, D.C. Dulles Intl (IAD).

Here are some options for this route, based on selected ticket types and cabin classes:

• United Airlines: a cabin bag and a checked bag in Economy Class

Bag allowance can vary by ticket type, cabin class, route and airline, so travelers should check the fare details before booking.

Only Economy Class is available on flights from Knoxville to Washington, D.C. Dulles Intl Airport.

On this route, nonstop flights are cheaper than layover options on average. Nonstop fares average $232 round-trip, compared to $444 via a layover through Atlanta Hartsfield-Jackson (ATL).

There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $39–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

The Embraer 175 (Enhanced Winglets) family is used most often on this route, operated mainly by United Airlines. Other aircraft seen on the route include Embraer ERJ-135 / ERJ-140 / ERJ-145 variants.

Most connecting flights from Knoxville to Washington, D.C. Dulles Intl Airport pass through Atlanta Hartsfield-Jackson (ATL), which handles 100% of one-stop traffic on this route. Other layover airports each see under 5%.

On the Knoxville to Washington, D.C. Dulles Intl Airport route, being flexible with your departure day can save you up to 46%. Sunday is the cheapest day at $143 round-trip on average, while Wednesday is the most expensive at $264: a $121 difference. Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

Morning is the busiest departure period on Knoxville to Washington, D.C. Dulles Intl Airport flights, with 50% of flights leaving in that window. Afternoon departures account for 25%, evening flights for 25%, and night flights for 0%.

Some of the most popular sights in Washington, D.C. Dulles Intl Airport are Walter E. Washington Convention Center, National Mall and Capital One Arena. These are among the most viewed places in Washington, D.C. Dulles Intl Airport on KAYAK.

These are the earliest and latest flight times available from Knoxville to Washington, D.C. Dulles Intl Airport:

• Earliest: departs at 5:45 am and lands at 7:28 am
• Latest: departs at 7:45 pm and lands at 9:28 pm.

The flight takes about 1h 43m.

Last-minute fares on this route - booked within 2 weeks of departure - run 14% above the route average of $230. Book 22 weeks before departure for the lowest fares.

A nonstop flight from Knoxville to Washington, D.C. Dulles Intl Airport takes 1h 43m, covering 419 miles.

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

One-way fares from Knoxville to Washington, D.C. Dulles Intl Airport are currently higher than usual. Average one-way flight prices are about $109, which is 12% above the typical average for this route.

Washington, D.C. Dulles Intl Airport (IAD) hosts 5 major car rental companies, with daily rates starting from around $24 for economy cars. Top options include:
• Dollar
• Budget
• Hertz
• Sixt
• Thrifty

Round-trip flights from Knoxville to Washington, D.C. Dulles Intl Airport range from $115 to $357, with an average of $230 over the past 12 months. Anything below $115 counts as a good deal.