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Cheap flights from District of Columbia to Knoxville from $43

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from District of Columbia to Knoxville departing on 10/17. 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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0 bags

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Find the cheapest flights from District of Columbia to Knoxville

Cheap round-trip flights

Allegiant Air Logo
8:46 pm - 10:26 pmIAD-TYS
1h 40mnonstop
Allegiant Air Logo
5:22 pm - 7:06 pmTYS-IAD
1h 44mnonstop
$83Allegiant Air
Find Deal
Fri, Nov 7 - Mon, Nov 10
Allegiant Air Logo
9:36 pm - 11:16 pmIAD-TYS
1h 40mnonstop
Allegiant Air Logo
7:02 pm - 8:46 pmTYS-IAD
1h 44mnonstop
$92Allegiant Air
Find Deal
Fri, Oct 17 - Mon, Oct 20
Logo
8:02 pm - 9:56 amIAD-TYS
13h 54m1 stop
Logo
5:59 pm - 7:43 pmTYS-IAD
1h 44mnonstop
$167
Find Deal
Sun, Oct 19 - Fri, Oct 24
United Airlines Logo
10:11 pm - 11:57 pmIAD-TYS
1h 46mnonstop
United Airlines Logo
5:45 am - 7:28 amTYS-IAD
1h 43mnonstop
$179United Airlines
Find Deal
Sat, Aug 30 - Sun, Aug 31
Delta Logo
7:20 am - 10:56 amIAD-TYS
3h 36m1 stop
Delta Logo
5:45 am - 11:10 amTYS-IAD
5h 25m1 stop
$189Delta
Find Deal
Wed, Sep 24 - Sat, Sep 27
Delta Logo
6:00 am - 10:56 amDCA-TYS
4h 56m1 stop
Delta Logo
7:49 am - 11:35 amTYS-DCA
3h 46m1 stop
$189Delta
Find Deal
Wed, Sep 24 - Wed, Oct 1
American Airlines Logo
1:55 pm - 3:41 pmDCA-TYS
1h 46mnonstop
American Airlines Logo
10:43 am - 12:14 pmTYS-DCA
1h 31mnonstop
$190American Airlines
Find Deal
Sat, Oct 4 - Sat, Oct 11
United Airlines Logo
10:11 pm - 11:57 pmIAD-TYS
1h 46mnonstop
United Airlines Logo
5:45 am - 7:28 amTYS-IAD
1h 43mnonstop
$194United Airlines
Find Deal
Thu, Sep 4 - Sat, Sep 20
American Airlines Logo
3:10 pm - 4:57 pmDCA-TYS
1h 47mnonstop
American Airlines Logo
6:25 am - 8:14 amTYS-DCA
1h 49mnonstop
$199American Airlines
Find Deal
Tue, Sep 2 - Sat, Sep 6
Logo
8:02 pm - 9:56 amIAD-TYS
13h 54m1 stop
Logo
7:44 pm - 8:53 pmTYS-IAD
25h 09m1 stop
$215
Find Deal
Sun, Oct 19 - Fri, Oct 24

Allegiant Air flights from District of Columbia to Knoxville

Our best Allegiant Air deals on District of Columbia to Knoxville flight tickets
Allegiant Air
Nov 7
IAD8:46 pmWashington, D.C. Dulles Intl
1h 40m
TYS10:26 pmKnoxville McGhee Tyson
Nov 10
TYS5:22 pmKnoxville McGhee Tyson
1h 44m
IAD7:06 pmWashington, D.C. Dulles Intl
$83
Find similar
Allegiant Air
Oct 17
IAD9:36 pmWashington, D.C. Dulles Intl
1h 40m
TYS11:16 pmKnoxville McGhee Tyson
Oct 20
TYS7:02 pmKnoxville McGhee Tyson
1h 44m
IAD8:46 pmWashington, D.C. Dulles Intl
$92
Find similar
Allegiant Air
Nov 20
IAD8:23 pmWashington, D.C. Dulles Intl
1h 40m
TYS10:03 pmKnoxville McGhee Tyson
Nov 23
TYS5:49 pmKnoxville McGhee Tyson
1h 44m
IAD7:33 pmWashington, D.C. Dulles Intl
$116
Find similar

American Airlines flights from District of Columbia to Knoxville

Our best American Airlines deals on District of Columbia to Knoxville flight tickets
American Airlines
Oct 4
DCA1:55 pmWashington, D.C. Reagan-National
1h 46m
TYS3:41 pmKnoxville McGhee Tyson
Oct 11
TYS10:43 amKnoxville McGhee Tyson
1h 31m
DCA12:14 pmWashington, D.C. Reagan-National
$190
Find similar
American Airlines
Sep 2
DCA3:10 pmWashington, D.C. Reagan-National
1h 47m
TYS4:57 pmKnoxville McGhee Tyson
Sep 6
TYS6:25 amKnoxville McGhee Tyson
1h 49m
DCA8:14 amWashington, D.C. Reagan-National
$199
Find similar
American Airlines
Sep 24
DCA8:30 amWashington, D.C. Reagan-National
2h 07m
TYS10:37 amKnoxville McGhee Tyson
Sep 27
TYS6:25 amKnoxville McGhee Tyson
1h 49m
DCA8:14 amWashington, D.C. Reagan-National
$210
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from District of Columbia 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 August 20, 2025.
Use the filters below to find and compare flights from District of Columbia 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

Fri 11/7

8:46 pm-10:26 pm

Nonstop1h 40m

Knoxville McGhee Tyson

Mon 11/10

5:22 pm-7:06 pm

Nonstop1h 44m

$83

Washington, D.C.Knoxville

IAD - TYS

IADTYS

Washington, D.C. Dulles Intl

Fri 10/17

9:36 pm-11:16 pm

Nonstop1h 40m

Knoxville McGhee Tyson

Mon 10/20

7:02 pm-8:46 pm

Nonstop1h 44m

$92

Washington, D.C.Knoxville

IAD - TYS

IADTYS

Washington, D.C. Dulles Intl

Sun 10/19

8:02 pm-9:56 am

1 stop13h 54m

Knoxville McGhee Tyson

Fri 10/24

5:59 pm-7:43 pm

Nonstop1h 44m

$167

Washington, D.C.Knoxville

IAD - TYS

IADTYS

Washington, D.C. Dulles Intl

Sat 8/30

10:11 pm-11:57 pm

Nonstop1h 46m

Knoxville McGhee Tyson

Sun 8/31

5:45 am-7:28 am

Nonstop1h 43m

$179

Washington, D.C.Knoxville

IAD - TYS

IADTYS

Washington, D.C. Dulles Intl

Wed 9/24

7:20 am-10:56 am

1 stop3h 36m

Knoxville McGhee Tyson

Sat 9/27

5:45 am-11:10 am

1 stop5h 25m

$189

Washington, D.C.Knoxville

DCA - TYS

DCATYS

Washington, D.C. Reagan-National

Wed 9/24

6:00 am-10:56 am

1 stop4h 56m

Knoxville McGhee Tyson

Wed 10/1

7:49 am-11:35 am

1 stop3h 46m

$189

Washington, D.C.Knoxville

DCA - TYS

DCATYS

Washington, D.C. Reagan-National

Sat 10/4

1:55 pm-3:41 pm

Nonstop1h 46m

Knoxville McGhee Tyson

Sat 10/11

10:43 am-12:14 pm

Nonstop1h 31m

$190

Washington, D.C.Knoxville

IAD - TYS

IADTYS

Washington, D.C. Dulles Intl

Thu 9/4

10:11 pm-11:57 pm

Nonstop1h 46m

Knoxville McGhee Tyson

Sat 9/20

5:45 am-7:28 am

Nonstop1h 43m

$194

Washington, D.C.Knoxville

DCA - TYS

DCATYS

Washington, D.C. Reagan-National

Tue 9/2

3:10 pm-4:57 pm

Nonstop1h 47m

Knoxville McGhee Tyson

Sat 9/6

6:25 am-8:14 am

Nonstop1h 49m

$199

Washington, D.C.Knoxville

IAD - TYS

IADTYS

Washington, D.C. Dulles Intl

Sun 10/19

8:02 pm-9:56 am

1 stop13h 54m

Knoxville McGhee Tyson

Fri 10/24

7:44 pm-8:53 pm

1 stop25h 09m

$215

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 District of Columbia 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 cheapest month to fly to Knoxville?

The month of July is, on average, the cheapest month to fly to Knoxville from District of Columbia, with most prices found around $249. If you aren’t able to travel during the month of July, then book flights to Knoxville from District of Columbia during August instead. Flights to Knoxville in August, while not as cheap as those in July, still average around $259.

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

The cheapest day to depart from District of Columbia to Knoxville is on a Saturday. Travelers who choose to depart for Knoxville on a Saturday will often find tickets for as low as $291. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from District of Columbia to Knoxville for around $378.

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 District of Columbia to Knoxville when you can find flight prices for as low as $252. 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 $343.

What is the cheapest District of Columbia to Knoxville McGhee Tyson flight route?

Fly from Washington, D.C. Dulles Intl to Knoxville McGhee Tyson for the best District of Columbia - 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 District of Columbia when booking weeks ahead of your departure date. In general, you can expect to find flights to Knoxville for around $342 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Knoxville from District of Columbia for as low as $147 on momondo.

What cabin class options are available on District of Columbia to Knoxville McGhee Tyson flights?

There are 4 cabin classes available to choose from on District of Columbia 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 District of Columbia to Knoxville flights?

No. A direct flight is the cheapest option for a flight between District of Columbia to Knoxville.

Cheap District of Columbia to Knoxville flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from District of Columbia to Knoxville

Best Price Found

$45

Fastest flight time

1h 34m

Direct flights

Mon, Tue, Wed, Fri, Sat and Sun

Airports in Knoxville

1 airport
The best one-way flight to Knoxville from District of Columbia in the past 72 hours is $45. The best round-trip flight deal from District of Columbia to Knoxville found on momondo in the last 72 hours is $89.
The fastest flight from District of Columbia to Knoxville takes 1h 34m
Direct flights go from District of Columbia to Knoxville on Monday, Tuesday, Wednesday, Friday, Saturday and Sunday. Airlines offering direct flights are: Allegiant Air and American Airlines.
There is 1 airport near Knoxville: Knoxville McGhee Tyson (TYS)
Search flight deals

  • When did momondo last update prices for flights from District of Columbia to Knoxville McGhee Tyson Airport?

    Prices for flights from District of Columbia to Knoxville McGhee Tyson Airport refresh daily.

  • How many operators does momondo search for flights from District of Columbia to Knoxville McGhee Tyson Airport?

  • How old do you have to be to fly from District of Columbia to Knoxville McGhee Tyson Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from District of Columbia to Knoxville McGhee Tyson Airport.

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

    The travel and health documents required for your trip to Knoxville McGhee Tyson Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Knoxville McGhee Tyson Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from District of Columbia to Knoxville?

Best airlines flying from District of Columbia to Knoxville

Compare and see reviews for airlines that fly from District of Columbia to Knoxville with momondo
Airline
Rating
Free Cancellation
Price
Allegiant AirPriceFrom $42Free CancellationRating
7.2
701 reviews
Search Allegiant Air flights
United AirlinesPriceFrom $189Free CancellationRating
7.4
8,928 reviews
Search United Airlines flights
DeltaPriceFrom $198Free CancellationRating
7.9
7,982 reviews
Search Delta flights
American AirlinesPriceFrom $209Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights

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
Newport
Lenoir City
Alcoa
Oak Ridge
Kodak
Dandridge
Clinton
Jefferson City
Rockford

Why use momondo?

Why should I use momondo to find a flight deal from District of Columbia to Knoxville?

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

Can I find flights from District of Columbia to Knoxville with flexible booking policies on momondo?

Yes. All flights to Knoxville from District of Columbia on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from District of Columbia to Knoxville?

momondo provides multiple filters to help you find the best flight to Knoxville from District of Columbia. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from District of Columbia to Knoxville right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Knoxville, momondo offers a useful price alert feature which will track prices for flights to Knoxville from District of Columbia and alert you when they change.

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