$29 Find Cheap Flights from Washington Dulles Airport to Knoxville - Compare and Save

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

• Earliest: departs at 8:16 am and lands at 10:07 am
• Latest: departs at 10:21 pm and lands at 12:12 am.

The flight takes about 1h 51m.

Two cabin classes are available on flights from Washington, D.C. Dulles Intl Airport to Knoxville:

• Economy Class
• First Class

A nonstop flight from Washington, D.C. Dulles Intl Airport to Knoxville takes 1h 51m, 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.

Round-trip flights from Washington, D.C. Dulles Intl Airport to Knoxville range from $105 to $366, with an average of $215 over the past 12 months. Anything below $105 counts as a good deal.

Last-minute fares on this route (booked within two weeks of departure) run 53% above the $215 route average. Book 20 weeks before departure for the lowest fares.

On this route, nonstop flights are cheaper than layover options on average. Nonstop fares average $210 round-trip, compared to $381 via a layover through Charlotte Douglas (CLT).

There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $40–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

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

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

One-way fares from Washington, D.C. Dulles Intl Airport to Knoxville are currently lower than usual. Average one-way flight prices are about $90, which is 54% below the typical average for this route.

Knoxville McGhee Tyson Airport (TYS) hosts 5 major car rental companies, with daily rates averaging $80 for economy cars. Top options include:

• Budget
• Alamo
• Enterprise Rent-A-Car
• Thrifty
• Avis

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

Connecting flights from Washington, D.C. Dulles Intl Airport to Knoxville most commonly pass through:

• Atlanta Hartsfield-Jackson (ATL) - 80% of one-stop connections
• Charlotte Douglas (CLT) - 20% of one-stop connections

Yes. Flexible dates can save you up to 52% on flights from Washington, D.C. Dulles Intl Airport to Knoxville. Thursday is the cheapest departure day at $165 round-trip on average, while Monday is the most expensive at $337, a difference of $172.

KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

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

• United Airlines
• Allegiant Air

Flying via Charlotte Douglas (CLT) gives the shortest average 1-stop total travel time at 4h 06m, compared with 4h 10m via Atlanta Hartsfield-Jackson (ATL).

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

• United Airlines: offers free seat selection

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

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 First Class

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