What airlines fly to Knoxville?

American Airlines, Allegiant Air and Delta are the top three most popular airlines that fly to Knoxville from Washington, D.C. according to our data. American Airlines is the first choice among our users, with 49% of people opting to fly with this airline when traveling to Knoxville. Keep in mind that there are 6 different airlines that fly to Knoxville on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Washington, D.C. to Knoxville McGhee Tyson?

Southwest, Delta, and Allegiant Air are the most popular carriers operating from Washington, D.C. to Knoxville McGhee Tyson

How many flights depart from Washington, D.C. to Knoxville on average per week?

138 flights are operational weekly from Washington, D.C. to Knoxville as of July 2026. The most popular departure day for this route is Mon, with 16% of flights per week taking off on this day.

How long does it take to fly to Knoxville?

Average flight duration from Washington, D.C. to Knoxville depends on which airport you fly into and out of. Flying from Washington, D.C. to Knoxville is 1h 34m on average, while flying from Baltimore to Knoxville is 1h 35m on average. Knoxville is the most popular airport in Knoxville.

How many flights depart from Washington, D.C. to Knoxville on average per day?

The number of flights available between Washington, D.C. and Knoxville is 19 per day as of July 2026. The most frequent departure time is 6:00PM, with 61% of daily flights leaving in the evening.

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?

There are 5 operators available for flights from Washington, D.C. to Knoxville McGhee Tyson Airport as of July 2026.

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.

$33 Cheap Flights from Washington, D.C. to Knoxville in 2026

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

Prices are currently low for flights on this route. Typical prices usually range from $76 to $287. The lowest price recently found on this route was $67.

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Washington, D.C. to Knoxville

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

3:16 pm - 4:42 pm

IAD

TYS

1h 26mnonstop

12:53 pm - 2:26 pm

TYS

IAD

1h 33mnonstop

$67Allegiant Air

Fri, Jul 31 - Mon, Aug 3

3:16 pm - 4:42 pm

IAD

TYS

1h 26mnonstop

12:53 pm - 2:26 pm

TYS

IAD

1h 33mnonstop

$76Allegiant Air

Mon, Jul 27 - Fri, Jul 31

3:16 pm - 4:42 pm

IAD

TYS

1h 26mnonstop

7:20 pm - 12:26 pm

TYS

IAD

17h 06m

1 stop

$151Multiple Airlines

Mon, Jul 27 - Fri, Jul 31

3:16 pm - 4:42 pm

IAD

TYS

1h 26mnonstop

7:20 pm - 12:47 pm

TYS

IAD

17h 27m

1 stop

$152Multiple Airlines

Fri, Jul 31 - Mon, Aug 3

7:46 pm - 9:33 pm

DCA

TYS

1h 47mnonstop

6:50 pm - 8:33 pm

TYS

DCA

1h 43mnonstop

$185American Airlines

Sat, Aug 1 - Tue, Aug 4

7:40 pm - 9:25 pm

BWI

TYS

1h 45mnonstop

8:05 am - 9:45 am

TYS

BWI

1h 40mnonstop

$185Southwest

Sat, Aug 1 - Tue, Aug 4

5:40 am - 9:36 am

BWI

TYS

3h 56m

1 stop

7:43 pm - 12:39 am

TYS

BWI

4h 56m

1 stop

$195Delta

Tue, Jul 28 - Tue, Jul 28

7:40 pm - 9:25 pm

BWI

TYS

1h 45mnonstop

7:00 am - 3:05 pm

TYS

BWI

8h 05m

2 stops

$200Southwest

Sat, Aug 1 - Tue, Aug 4

7:46 pm - 9:34 pm

DCA

TYS

1h 48mnonstop

7:04 am - 8:57 am

TYS

DCA

1h 53mnonstop

$201American Airlines

Thu, Aug 20 - Sat, Aug 22

7:37 pm - 11:52 pm

DCA

TYS

4h 15m

1 stop

5:00 pm - 8:33 pm

TYS

DCA

3h 33m

1 stop

$205Delta

Tue, Jul 28 - Sat, Aug 8

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

Our best American Airlines deals on Washington, D.C. to Knoxville flight tickets

American Airlines

Aug 1

DCA7:46 pmWashington, D.C. Reagan-National

1h 47m

TYS9:33 pmKnoxville McGhee Tyson

Aug 4

TYS6:50 pmKnoxville McGhee Tyson

1h 43m

DCA8:33 pmWashington, D.C. Reagan-National

$185

American Airlines

Aug 20

DCA7:46 pmWashington, D.C. Reagan-National

1h 48m

TYS9:34 pmKnoxville McGhee Tyson

Aug 22

TYS7:04 amKnoxville McGhee Tyson

1h 53m

DCA8:57 amWashington, D.C. Reagan-National

$201

American Airlines

Jul 27

DCA9:58 amWashington, D.C. Reagan-National

1h 47m

TYS11:45 amKnoxville McGhee Tyson

Aug 1

TYS4:40 pmKnoxville McGhee Tyson

1h 49m

DCA6:29 pmWashington, D.C. Reagan-National

$211

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

Our best Allegiant Air deals on Washington, D.C. to Knoxville flight tickets

Allegiant Air

Jul 31

IAD3:16 pmWashington, D.C. Dulles Intl

1h 26m

TYS4:42 pmKnoxville McGhee Tyson

Aug 3

TYS12:53 pmKnoxville McGhee Tyson

1h 33m

IAD2:26 pmWashington, D.C. Dulles Intl

$67

Allegiant Air

Jul 27

IAD3:16 pmWashington, D.C. Dulles Intl

1h 26m

TYS4:42 pmKnoxville McGhee Tyson

Jul 31

TYS12:53 pmKnoxville McGhee Tyson

1h 33m

IAD2:26 pmWashington, D.C. Dulles Intl

$76

Allegiant Air

Jul 27

IAD3:16 pmWashington, D.C. Dulles Intl

1h 26m

TYS4:42 pmKnoxville McGhee Tyson

Jul 31

TYS12:53 pmKnoxville McGhee Tyson

1h 33m

IAD2:26 pmWashington, D.C. Dulles Intl

$78

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

Washington, D.C.Knoxville

IAD - TYS

IADTYS

Washington, D.C. Dulles Intl

Fri 7/31

3:16 pm-4:42 pm

Nonstop1h 26m

Knoxville McGhee Tyson

Mon 8/3

12:53 pm-2:26 pm

Nonstop1h 33m

$67

Washington, D.C.Knoxville

IAD - TYS

IADTYS

Washington, D.C. Dulles Intl

Mon 7/27

3:16 pm-4:42 pm

Nonstop1h 26m

Knoxville McGhee Tyson

Fri 7/31

12:53 pm-2:26 pm

Nonstop1h 33m

$76

Washington, D.C.Knoxville

IAD - TYS

IADTYS

Washington, D.C. Dulles Intl

Mon 7/27

3:16 pm-4:42 pm

Nonstop1h 26m

Knoxville McGhee Tyson

Fri 7/31

7:20 pm-12:26 pm

1 stop17h 06m

$151

Washington, D.C.Knoxville

IAD - TYS

IADTYS

Washington, D.C. Dulles Intl

Fri 7/31

3:16 pm-4:42 pm

Nonstop1h 26m

Knoxville McGhee Tyson

Mon 8/3

7:20 pm-12:47 pm

1 stop17h 27m

$152

Washington, D.C.Knoxville

DCA - TYS

DCATYS

Washington, D.C. Reagan-National

Sat 8/1

7:46 pm-9:33 pm

Nonstop1h 47m

Knoxville McGhee Tyson

Tue 8/4

6:50 pm-8:33 pm

Nonstop1h 43m

$185

BaltimoreKnoxville

BWI - TYS

BWITYS

Baltimore/Washington

Sat 8/1

7:40 pm-9:25 pm

Nonstop1h 45m

Knoxville McGhee Tyson

Tue 8/4

8:05 am-9:45 am

Nonstop1h 40m

$185

BaltimoreKnoxville

BWI - TYS

BWITYS

Baltimore/Washington

Tue 7/28

5:40 am-9:36 am

1 stop3h 56m

Knoxville McGhee Tyson

Tue 7/28

7:43 pm-12:39 am

1 stop4h 56m

$195

BaltimoreKnoxville

BWI - TYS

BWITYS

Baltimore/Washington

Sat 8/1

7:40 pm-9:25 pm

Nonstop1h 45m

Knoxville McGhee Tyson

Tue 8/4

7:00 am-3:05 pm

2 stops8h 05m

$200

Washington, D.C.Knoxville

DCA - TYS

DCATYS

Washington, D.C. Reagan-National

Thu 8/20

7:46 pm-9:34 pm

Nonstop1h 48m

Knoxville McGhee Tyson

Sat 8/22

7:04 am-8:57 am

Nonstop1h 53m

$201

Washington, D.C.Knoxville

DCA - TYS

DCATYS

Washington, D.C. Reagan-National

Tue 7/28

7:37 pm-11:52 pm

1 stop4h 15m

Knoxville McGhee Tyson

Sat 8/8

5:00 pm-8:33 pm

1 stop3h 33m

$205

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Other information

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 April is, on average, the cheapest month to fly to Knoxville from Washington, D.C., with most prices found around $30. If you aren’t able to travel during the month of April, then book flights to Knoxville from Washington, D.C. during February instead. Flights to Knoxville in February, while not as cheap as those in April, still average around $31.

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 $252. When flying out on a Wednesday, the most expensive travel day of the week, you can expect to see flight prices from Washington, D.C. to Knoxville for around $297.

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 $148. 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 $327.

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 from Washington, D.C. 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 $256 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 $112 on momondo.

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

There are 4 cabin classes available to choose from on Washington, D.C. to Knoxville 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 July 2026, prices for Washington, D.C. to Knoxville flights are approximately 76% cheaper 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 26m
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 $76.

The fastest flight from Washington, D.C. to Knoxville takes 1h 26m

Direct flights go from Washington, D.C. to Knoxville every day.

There is 1 airport in Knoxville. From Washington, D.C. there are direct flights to Knoxville McGhee Tyson (TYS).

Search flight deals

Frequently asked questions about flying from Washington, D.C. to Knoxville

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 26m 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?
There are 5 operators available for flights from Washington, D.C. to Knoxville McGhee Tyson Airport as of July 2026.
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?
momondo data reveals that the most frequently booked plane model on the route from Washington, D.C. to Knoxville is Embraer ERJ-135 / ERJ-140 / ERJ-145, representing 24.87% of all bookings. The subsequent popular models are Canadair (Bombardier) Regional Jet 700 at 19.19%, Embraer 175 (Enhanced Winglets) at 19.12%, and Canadair (Bombardier) Regional Jet 900 at 18.22%.
What is the most popular airline from Washington, D.C. to Knoxville?
momondo data reveals that the most frequently booked airline on the route from Washington, D.C. to Knoxville is American Airlines, representing 35% of all bookings. The subsequent popular airlines are Allegiant Air at 33%, United Airlines at 30%, and Southwest at 2%.

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 Air	PriceFrom $54	Free Cancellation	Rating 7.3 688 reviews	Search Allegiant Air flights
American Airlines	PriceFrom $189	Free Cancellation	Rating 7.1 11,783 reviews	Search American Airlines flights
United Airlines	PriceFrom $203	Free Cancellation	Rating 7.4 9,945 reviews	Search United Airlines flights
Delta	PriceFrom $208	Free Cancellation	Rating 7.8 8,451 reviews	Search Delta flights
Southwest	PriceFrom $210	Free Cancellation	Rating 7.9 4,252 reviews	Search Southwest flights

United Airlines Flights From Washington, D.C. to Knoxville
United Airlines flies from Washington, D.C. to Knoxville around 28 times per week, with 9,945 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 $203 (round-trip), much lower than the average airfare cost of $363 for United Airlines flights on this route.
Allegiant Air Flights From Washington, D.C. to Knoxville
$54 is the best Allegiant Air flight deal from Washington, D.C. to Knoxville found on momondo over the last 72 hours. The average Allegiant Air ticket price found was closer to $98, however, with flight time and availability significantly affecting the price. Allegiant Air (7.3/10 from 688 user reviews) flies into Knoxville from Washington, D.C. 2 times in an average week so prices can vary.

Pigeon Forge

Gatlinburg

Cherokee

Bryson City

Morristown

Corbin

Alcoa

Maryville

Murphy

Crossville

Oak Ridge

Kodak

Newport

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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Cheap flights from Washington, D.C. to Knoxville from $33

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 7/27. 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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American Airlines flights from Washington, D.C. to Knoxville

Our best American Airlines deals on Washington, D.C. to Knoxville flight tickets

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

Our best Allegiant Air deals on Washington, D.C. to Knoxville flight tickets

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See travel insights to Knoxville from

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

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?

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

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

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

How far in advance should I book a flight from Washington, D.C. to Knoxville?

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

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

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

What is the cheapest airline that flies from Washington, D.C. to Knoxville McGhee Tyson?

What airlines fly to Knoxville?

How many flights depart from Washington, D.C. to Knoxville on average per day?

How many flights depart from Washington, D.C. to Knoxville on average per week?

How long does it take to fly to Knoxville?

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

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

Fastest flight time

Direct flights

Airports in Knoxville

Frequently asked questions about flying 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

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

Allegiant Air Flights From Washington, D.C. to Knoxville

Traveling to a place near Knoxville?

Why use momondo?

An easier way to manage your Knoxville trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

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