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Cheap flights from Washington, D.C. to Knoxville from $41

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 11/7. 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

Enter your travel dates to find the best prices.
Allegiant Air Logo
8:23 pm - 10:03 pmIAD-TYS
1h 40mnonstop
Allegiant Air Logo
5:49 pm - 7:33 pmTYS-IAD
1h 44mnonstop
$95Allegiant Air
Find Deal
Thu, Nov 20 - Sun, Nov 23
Allegiant Air Logo
2:35 pm - 4:15 pmIAD-TYS
1h 40mnonstop
Allegiant Air Logo
12:01 pm - 1:45 pmTYS-IAD
1h 44mnonstop
$98Allegiant Air
Find Deal
Wed, Dec 24 - Wed, Dec 31
Multiple Airlines Logo
9:58 pm - 4:47 pmIAD-TYS
18h 49m1 stop
Multiple Airlines Logo
1:39 pm - 3:23 pmTYS-IAD
1h 44mnonstop
$122Multiple Airlines
Find Deal
Mon, Jan 5 - Thu, Jan 8
Multiple Airlines Logo
8:23 pm - 10:03 pmIAD-TYS
1h 40mnonstop
Multiple Airlines Logo
12:59 pm - 7:45 amTYS-IAD
18h 46m1 stop
$139Multiple Airlines
Find Deal
Thu, Nov 20 - Sun, Nov 23
American Airlines Logo
8:57 am - 10:52 amDCA-TYS
1h 55mnonstop
American Airlines Logo
6:06 am - 7:49 amTYS-DCA
1h 43mnonstop
$189American Airlines
Find Deal
Thu, Nov 20 - Sun, Nov 23
United Airlines Logo
10:15 pm - 11:59 pmIAD-TYS
1h 44mnonstop
United Airlines Logo
2:25 pm - 4:08 pmTYS-IAD
1h 43mnonstop
$189United Airlines
Find Deal
Fri, Nov 21 - Sun, Nov 23
American Airlines Logo
8:57 am - 10:52 amDCA-TYS
1h 55mnonstop
American Airlines Logo
4:18 pm - 5:59 pmTYS-DCA
1h 41mnonstop
$194American Airlines
Find Deal
Mon, Nov 17 - Tue, Dec 2
United Airlines Logo
10:15 pm - 11:59 pmIAD-TYS
1h 44mnonstop
United Airlines Logo
2:25 pm - 4:08 pmTYS-IAD
1h 43mnonstop
$195United Airlines
Find Deal
Fri, Nov 21 - Sun, Nov 23
Delta Logo
12:30 pm - 6:58 pmIAD-TYS
6h 28m1 stop
Delta Logo
5:40 am - 9:11 amTYS-IAD
3h 31m1 stop
$209Delta
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Wed, Dec 3 - Wed, Dec 10
Delta Logo
6:06 am - 11:45 amDCA-TYS
5h 39m1 stop
Delta Logo
5:35 am - 9:10 amTYS-DCA
3h 35m1 stop
$209Delta
Find Deal
Thu, Nov 20 - Mon, Nov 24

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

Our best United Airlines deals on Washington, D.C. to Knoxville flight tickets
United Airlines
Nov 21
IAD10:15 pmWashington, D.C. Dulles Intl
1h 44m
TYS11:59 pmKnoxville McGhee Tyson
Nov 23
TYS2:25 pmKnoxville McGhee Tyson
1h 43m
IAD4:08 pmWashington, D.C. Dulles Intl
$189
Find similar
United Airlines
Nov 21
IAD10:15 pmWashington, D.C. Dulles Intl
1h 44m
TYS11:59 pmKnoxville McGhee Tyson
Nov 23
TYS2:25 pmKnoxville McGhee Tyson
1h 43m
IAD4:08 pmWashington, D.C. Dulles Intl
$195
Find similar
United Airlines
Nov 12
IAD12:55 pmWashington, D.C. Dulles Intl
1h 48m
TYS2:43 pmKnoxville McGhee Tyson
Nov 15
TYS9:50 amKnoxville McGhee Tyson
1h 43m
IAD11:33 amWashington, D.C. Dulles Intl
$199
Find similar

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

Our best American Airlines deals on Washington, D.C. to Knoxville flight tickets
American Airlines
Nov 20
DCA8:57 amWashington, D.C. Reagan-National
1h 55m
TYS10:52 amKnoxville McGhee Tyson
Nov 23
TYS6:06 amKnoxville McGhee Tyson
1h 43m
DCA7:49 amWashington, D.C. Reagan-National
$189
Find similar
American Airlines
Nov 17
DCA8:57 amWashington, D.C. Reagan-National
1h 55m
TYS10:52 amKnoxville McGhee Tyson
Dec 2
TYS4:18 pmKnoxville McGhee Tyson
1h 41m
DCA5:59 pmWashington, D.C. Reagan-National
$194
Find similar
American Airlines
Dec 14
BWI5:00 amBaltimore/Washington
3h 36m
1 stop
TYS8:36 amKnoxville McGhee Tyson
Dec 21
TYS5:40 pmKnoxville McGhee Tyson
6h 03m
1 stop
BWI11:43 pmBaltimore/Washington
$216
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. to Knoxville that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated October 30, 2025.
Use the filters below to find and compare flights from Washington, D.C. to Knoxville that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Knoxville

IAD - TYS

IADTYS

Washington, D.C. Dulles Intl

Thu 11/20

8:23 pm-10:03 pm

Nonstop1h 40m

Knoxville McGhee Tyson

Sun 11/23

5:49 pm-7:33 pm

Nonstop1h 44m

$95

Washington, D.C.Knoxville

IAD - TYS

IADTYS

Washington, D.C. Dulles Intl

Wed 12/24

2:35 pm-4:15 pm

Nonstop1h 40m

Knoxville McGhee Tyson

Wed 12/31

12:01 pm-1:45 pm

Nonstop1h 44m

$98

Washington, D.C.Knoxville

IAD - TYS

IADTYS

Washington, D.C. Dulles Intl

Mon 1/5

9:58 pm-4:47 pm

1 stop18h 49m

Knoxville McGhee Tyson

Thu 1/8

1:39 pm-3:23 pm

Nonstop1h 44m

$122

Washington, D.C.Knoxville

IAD - TYS

IADTYS

Washington, D.C. Dulles Intl

Thu 11/20

8:23 pm-10:03 pm

Nonstop1h 40m

Knoxville McGhee Tyson

Sun 11/23

12:59 pm-7:45 am

1 stop18h 46m

$139

Washington, D.C.Knoxville

DCA - TYS

DCATYS

Washington, D.C. Reagan-National

Thu 11/20

8:57 am-10:52 am

Nonstop1h 55m

Knoxville McGhee Tyson

Sun 11/23

6:06 am-7:49 am

Nonstop1h 43m

$189

Washington, D.C.Knoxville

IAD - TYS

IADTYS

Washington, D.C. Dulles Intl

Fri 11/21

10:15 pm-11:59 pm

Nonstop1h 44m

Knoxville McGhee Tyson

Sun 11/23

2:25 pm-4:08 pm

Nonstop1h 43m

$189

Washington, D.C.Knoxville

DCA - TYS

DCATYS

Washington, D.C. Reagan-National

Mon 11/17

8:57 am-10:52 am

Nonstop1h 55m

Knoxville McGhee Tyson

Tue 12/2

4:18 pm-5:59 pm

Nonstop1h 41m

$194

Washington, D.C.Knoxville

IAD - TYS

IADTYS

Washington, D.C. Dulles Intl

Fri 11/21

10:15 pm-11:59 pm

Nonstop1h 44m

Knoxville McGhee Tyson

Sun 11/23

2:25 pm-4:08 pm

Nonstop1h 43m

$195

Washington, D.C.Knoxville

IAD - TYS

IADTYS

Washington, D.C. Dulles Intl

Wed 12/3

12:30 pm-6:58 pm

1 stop6h 28m

Knoxville McGhee Tyson

Wed 12/10

5:40 am-9:11 am

1 stop3h 31m

$209

Washington, D.C.Knoxville

DCA - TYS

DCATYS

Washington, D.C. Reagan-National

Thu 11/20

6:06 am-11:45 am

1 stop5h 39m

Knoxville McGhee Tyson

Mon 11/24

5:35 am-9:10 am

1 stop3h 35m

$209

Flights are sorted by cheapest round-trip flights first.

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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 August is, on average, the cheapest month to fly to Knoxville from Washington, D.C., with most prices found around $219. If you aren’t able to travel during the month of August, then book flights to Knoxville from Washington, D.C. during July instead. Flights to Knoxville in July, while not as cheap as those in August, still average around $249.

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 Friday. Travelers who choose to depart for Knoxville on a Friday will often find tickets for as low as $290. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Washington, D.C. to Knoxville for around $376.

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 $249. 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 at noon when prices are around $337.

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 weeks ahead of your departure date. In general, you can expect to find flights to Knoxville for around $309 when searching 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 $103 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.

Can stopping save me money on Washington, D.C. to Knoxville flights?

No. A direct flight is the cheapest option for a flight between Washington, D.C. to Knoxville.

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

As of October 2025, prices for Washington, D.C. to Knoxville flights are approximately 19% 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

$50

Fastest flight time

1h 40m

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 $50. The best round-trip flight deal from Washington, D.C. to Knoxville found on momondo in the last 72 hours is $133.
The fastest flight from Washington, D.C. to Knoxville takes 1h 40m
Direct flights go from Washington, D.C. to Knoxville every day.
There is 1 airport near Knoxville: Knoxville McGhee Tyson (TYS)
Search flight deals

  • 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 40m 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 $42Free CancellationRating
7.2
694 reviews
Search Allegiant Air flights
United AirlinesPriceFrom $187Free CancellationRating
7.4
8,998 reviews
Search United Airlines flights
American AirlinesPriceFrom $189Free CancellationRating
7.2
11,035 reviews
Search American Airlines flights
DeltaPriceFrom $198Free CancellationRating
7.9
7,998 reviews
Search Delta flights

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

    United Airlines flies from Washington, D.C. to Knoxville around 16 times per week, with 8,998 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 $187 (round-trip), much lower than the average airfare cost of $361 for United Airlines flights on this route.

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

    $189 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 $327, however, with flight time and availability significantly affecting the price. American Airlines (7.2/10 from 11,035 user reviews) flies into Knoxville from Washington, D.C. 7 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
Maryville
Murphy
Alcoa
Oak Ridge
Lenoir City
Newport
Kodak
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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