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Cheap flights from Washington, D.C. to Knoxville from $40

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. to Knoxville departing on 6/27. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Washington, D.C. to Knoxville

Cheap round-trip flights

KAYAK's recommended round-trip deals from the most popular airlines that fly from Washington, D.C. to Knoxville.
Allegiant Air Logo
3:13 pm - 4:47 pmIAD-TYS
1h 34mnonstop
Allegiant Air Logo
12:45 pm - 2:23 pmTYS-IAD
1h 38mnonstop
$85Allegiant Air
Find Deal
Fri, Jun 6 - Mon, Jun 9
Allegiant Air Logo
3:13 pm - 4:47 pmIAD-TYS
1h 34mnonstop
Allegiant Air Logo
12:45 pm - 2:23 pmTYS-IAD
1h 38mnonstop
$86Allegiant Air
Find Deal
Mon, May 26 - Fri, May 30
American Airlines Logo
7:58 pm - 9:55 pmDCA-TYS
1h 57mnonstop
American Airlines Logo
5:12 pm - 6:50 pmTYS-DCA
1h 38mnonstop
$189American Airlines
Find Deal
Wed, May 14 - Wed, Jun 25
United Airlines Logo
10:13 pm - 11:59 pmIAD-TYS
1h 46mnonstop
United Airlines Logo
5:45 am - 7:26 amTYS-IAD
1h 41mnonstop
$189United Airlines
Find Deal
Sat, Jun 21 - Wed, Jun 25
American Airlines Logo
3:30 pm - 5:11 pmDCA-TYS
1h 41mnonstop
American Airlines Logo
5:12 pm - 6:50 pmTYS-DCA
1h 38mnonstop
$192American Airlines
Find Deal
Sat, May 31 - Sat, Jun 7
 Logo
8:30 am - 9:10 pmIAD-TYS
12h 40m1 stop
 Logo
12:45 pm - 2:23 pmTYS-IAD
1h 38mnonstop
Mon, May 26 - Fri, May 30
United Airlines Logo
8:20 am - 10:05 amIAD-TYS
1h 45mnonstop
United Airlines Logo
5:50 am - 7:35 amTYS-IAD
1h 45mnonstop
$199United Airlines
Find Deal
Wed, Apr 30 - Sat, May 3
 Logo
3:13 pm - 4:47 pmIAD-TYS
1h 34mnonstop
 Logo
9:03 pm - 2:44 pmTYS-IAD
17h 41m2 stops
Mon, May 26 - Fri, May 30
Delta Logo
6:00 am - 11:07 amIAD-TYS
5h 07m1 stop
Delta Logo
5:30 am - 10:10 amTYS-IAD
4h 40m1 stop
$209Delta
Find Deal
Mon, Jul 7 - Sat, Jul 12
Delta Logo
6:00 am - 10:23 amDCA-TYS
4h 23m1 stop
Delta Logo
10:45 am - 4:33 pmTYS-DCA
5h 48m1 stop
$209Delta
Find Deal
Wed, May 14 - Wed, Jun 25

United Airlines flights from Washington, D.C. to Knoxville

Our best United Airlines deals on Washington, D.C. to Knoxville flight tickets
United Airlines
Jun 21
IAD10:13 pmWashington, D.C. Dulles Intl
1h 46m
TYS11:59 pmKnoxville McGhee Tyson
Jun 25
TYS5:45 amKnoxville McGhee Tyson
1h 41m
IAD7:26 amWashington, D.C. Dulles Intl
United Airlines
Apr 30
IAD8:20 amWashington, D.C. Dulles Intl
1h 45m
TYS10:05 amKnoxville McGhee Tyson
May 3
TYS5:50 amKnoxville McGhee Tyson
1h 45m
IAD7:35 amWashington, D.C. Dulles Intl
United Airlines
Jul 24
IAD10:13 pmWashington, D.C. Dulles Intl
1h 46m
TYS11:59 pmKnoxville McGhee Tyson
Jul 27
TYS5:45 amKnoxville McGhee Tyson
1h 41m
IAD7:26 amWashington, D.C. Dulles Intl

Allegiant Air flights from Washington, D.C. to Knoxville

Our best Allegiant Air deals on Washington, D.C. to Knoxville flight tickets
Allegiant Air
Jun 6
IAD3:13 pmWashington, D.C. Dulles Intl
1h 34m
TYS4:47 pmKnoxville McGhee Tyson
Jun 9
TYS12:45 pmKnoxville McGhee Tyson
1h 38m
IAD2:23 pmWashington, D.C. Dulles Intl
Allegiant Air
May 26
IAD3:13 pmWashington, D.C. Dulles Intl
1h 34m
TYS4:47 pmKnoxville McGhee Tyson
May 30
TYS12:45 pmKnoxville McGhee Tyson
1h 38m
IAD2:23 pmWashington, D.C. Dulles Intl
Allegiant Air
May 26
IAD3:13 pmWashington, D.C. Dulles Intl
1h 34m
TYS4:47 pmKnoxville McGhee Tyson
May 30
TYS12:45 pmKnoxville McGhee Tyson
1h 38m
IAD2:23 pmWashington, D.C. Dulles Intl

See travel insights to Knoxville from

How to get the cheapest flight ticket from Washington, D.C. to Knoxville

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Washington, D.C. and Knoxville?

What is the cheapest month to fly to Knoxville?

The month of January is, on average, the cheapest month to fly to Knoxville from Washington, D.C., with most prices found around $278. If you aren’t able to travel during the month of January, then book flights to Knoxville from Washington, D.C. during March instead. Flights to Knoxville in March, while not as cheap as those in January, still average around $288.

What is the cheapest day to depart on your flight to Knoxville?

The cheapest day to depart from Washington, D.C. to Knoxville is on a Wednesday. Travelers who choose to depart for Knoxville on a Wednesday will often find tickets for as low as $308. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Washington, D.C. to Knoxville for around $360.

What is the cheapest time of day to depart on your flight to Knoxville?

In the afternoon is the cheapest time of day to fly from Washington, D.C. to Knoxville when you can find flight prices for as low as $320. Flying to Knoxville in the afternoon is an ideal time because this is during off-peak travel hours. In contrast, the most expensive time of day to depart to Knoxville is in the morning when prices are around $345.

What is the cheapest Washington, D.C. to Knoxville McGhee Tyson flight route?

Fly from Washington, D.C. Dulles Intl to Knoxville McGhee Tyson for the best Washington, D.C. - Knoxville McGhee Tyson flight prices

How far in advance should I book a flight to Knoxville?

You are more likely to see cheaper flights to Knoxville from Washington, D.C. when booking 13 weeks ahead of your departure date. In general, you can expect to find flights to Knoxville for around $377 when searching 13 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Knoxville from Washington, D.C. for as low as $236 on momondo.

What cabin class options are available on Washington, D.C. to Knoxville McGhee Tyson flights?

There are 4 cabin classes available to choose from on Washington, D.C. to Knoxville McGhee Tyson flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Washington, D.C. to Knoxville flight prices changed over time?

As of April 2025, prices for Washington, D.C. to Knoxville flights are approximately 18% more expensive when compared to flights at the same time last year.

When to book flights from Washington, D.C. to Knoxville

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. to Knoxville according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Washington, D.C. to Knoxville (WAS to TYS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to Knoxville

Best Price Found

$40

Fastest flight time

1h 34m

Direct flights

Every day

Airports in Knoxville

1 airport
The best one-way flight to Knoxville from Washington, D.C. in the past 72 hours is $40. The best round-trip flight deal from Washington, D.C. to Knoxville found on momondo in the last 72 hours is $85.
The fastest flight from Washington, D.C. to Knoxville takes 1h 34m
Direct flights go from Washington, D.C. to Knoxville every day.
There is 1 airport near Knoxville: Knoxville McGhee Tyson (TYS)

  • How far is Washington, D.C. to Knoxville McGhee Tyson by plane?

    A flight from Washington, D.C. to Knoxville McGhee Tyson will travel around 428.6 mi. Typically, this will take 1h 34m by plane in normal conditions.

  • When did momondo last update prices for flights from Washington, D.C. to Knoxville McGhee Tyson Airport?

    Prices for flights from Washington, D.C. to Knoxville McGhee Tyson Airport are updated daily.

  • How many operators does momondo search for flights from Washington, D.C. to Knoxville McGhee Tyson Airport?

  • How old do you have to be to fly from Washington, D.C. to Knoxville McGhee Tyson Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. to Knoxville McGhee Tyson Airport.

  • What documentation or ID do you need to fly to Knoxville McGhee Tyson Airport?

    The travel and health documents you'll need for your trip to Knoxville McGhee Tyson Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Knoxville McGhee Tyson Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Washington, D.C. to Knoxville?

  • What is the most popular airline from Washington, D.C. to Knoxville?


Best airlines flying from Washington, D.C. to Knoxville

Compare and see reviews for airlines that fly from Washington, D.C. to Knoxville with momondo
Airline
Rating
Free Cancellation
Price
Allegiant AirPriceFrom $52Free CancellationRating
7.3
734 reviews
Search Allegiant Air flights
DeltaPriceFrom $198Free CancellationRating
8.0
7,917 reviews
Search Delta flights
American AirlinesPriceFrom $218Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $229Free CancellationRating
7.4
8,667 reviews
Search United Airlines flights
  • United Airlines Flights From Washington, D.C. to Knoxville

    United Airlines flies from Washington, D.C. to Knoxville around 25 times per week, with 8,667 momondo users rating the airline 7.4/10. The cheapest United Airlines deal from Washington, D.C. to Knoxville in the last 72 hours was $229 (round-trip), much lower than the average airfare cost of $356 for United Airlines flights on this route.

  • American Airlines Flights From Washington, D.C. to Knoxville

    $218 is the best American Airlines flight deal from Washington, D.C. to Knoxville found on momondo over the last 72 hours. The average American Airlines ticket price found was closer to $360, however, with flight time and availability significantly affecting the price. American Airlines (7.2/10 from 10,000 user reviews) flies into Knoxville from Washington, D.C. 20 times in an average week so prices can vary.


Traveling to a place near Knoxville?

Book flights to Knoxville if you plan to visit one of these locations
Pigeon Forge
Gatlinburg
Cherokee
Bryson City
Morristown
Corbin
Crossville
Murphy
Maryville
Newport
Alcoa
Oak Ridge
Kodak
Lenoir City
Dandridge
Clinton
Jefferson City
Rockford

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Knoxville?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Washington, D.C. to Knoxville. momondo saves you time and could save you money on your trip.

Can I find flights from Washington, D.C. to Knoxville with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Knoxville from Washington, D.C. with this policy.

How can momondo help me find flights from Washington, D.C. to Knoxville?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Washington, D.C. to Knoxville.

I’m not ready to book a flight from Washington, D.C. to Knoxville right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Washington, D.C. to Knoxville flights. All you need is a valid email address and we will do the rest; it is that quick and easy.


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