What airlines fly to District of Columbia?

American Airlines, Delta and United Airlines are the top three most popular airlines that fly to District of Columbia from Knoxville according to our data. American Airlines is the first choice among our users, with 67% of people opting to fly with this airline when traveling to District of Columbia. Keep in mind that there are 4 different airlines that fly to District of Columbia on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Knoxville McGhee Tyson to District of Columbia?

Allegiant Air, United Airlines, and American Airlines are the most popular carriers operating from Knoxville McGhee Tyson to District of Columbia

How many flights depart from Knoxville to District of Columbia on average per day?

As of August 2025, there are 21 flights per day flying from Knoxville to District of Columbia. The most common time of day flights depart is 7:00PM, with 37% of flights taking off at noon.

How many flights depart from Knoxville to District of Columbia on average per week?

As of August 2025, 147 flights take off from Knoxville and land in District of Columbia each week. The most common flight departure day for this route is Mon, with 17% of weekly flights taking off on this day.

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

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

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

The number of operators available for flights from Knoxville McGhee Tyson Airport to District of Columbia is 4 as of August 2025.

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

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 Knoxville McGhee Tyson Airport to District of Columbia.

What documentation or ID do you need to fly to District of Columbia?

The travel and health documents required for your trip to District of Columbia 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 District of Columbia. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$40 Cheap Flights from Knoxville to District of Columbia in 2025

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Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

6:12 pm - 7:56 pmTYS-IAD

1h 44mnonstop

9:16 pm - 10:56 pmIAD-TYS

1h 40mnonstop

$86Allegiant Air

Find Deal

Fri, Nov 7 - Fri, Nov 14

6:12 pm - 7:56 pmTYS-IAD

1h 44mnonstop

9:16 pm - 10:56 pmIAD-TYS

1h 40mnonstop

$90Allegiant Air

Find Deal

Fri, Nov 7 - Fri, Nov 14

6:12 pm - 7:56 pmTYS-IAD

1h 44mnonstop

8:36 pm - 8:16 amIAD-TYS

11h 40m1 stop

$142

Find Deal

Fri, Nov 7 - Fri, Nov 14

6:12 pm - 7:56 pmTYS-IAD

1h 44mnonstop

8:36 pm - 8:16 amIAD-TYS

11h 40m1 stop

$157

Find Deal

Fri, Nov 7 - Fri, Nov 14

6:03 am - 7:45 amTYS-DCA

1h 42mnonstop

8:24 pm - 10:09 pmDCA-TYS

1h 45mnonstop

$189American Airlines

Find Deal

Fri, Oct 24 - Mon, Oct 27

5:45 am - 7:28 amTYS-IAD

1h 43mnonstop

8:45 am - 10:28 amIAD-TYS

1h 43mnonstop

$189United Airlines

Find Deal

Fri, Sep 5 - Sun, Sep 7

5:20 pm - 6:59 pmTYS-DCA

1h 39mnonstop

7:58 pm - 9:41 pmDCA-TYS

1h 43mnonstop

$194American Airlines

Find Deal

Thu, Sep 11 - Sun, Sep 14

5:16 pm - 9:31 pmTYS-IAD

4h 15m1 stop

5:10 pm - 9:13 pmIAD-TYS

4h 03m1 stop

$209Delta

Find Deal

Fri, Oct 24 - Wed, Oct 29

8:10 pm - 11:41 pmTYS-DCA

3h 31m1 stop

6:00 am - 11:04 amDCA-TYS

5h 04m1 stop

$209Delta

Find Deal

Fri, Oct 10 - Mon, Oct 13

7:25 pm - 9:08 pmTYS-IAD

1h 43mnonstop

8:45 am - 10:28 amIAD-TYS

1h 43mnonstop

$249United Airlines

Find Deal

Fri, Sep 5 - Sun, Sep 7

Allegiant Air flights from Knoxville to District of Columbia

Our best Allegiant Air deals on Knoxville to District of Columbia flight tickets

Allegiant Air

Nov 7

TYS6:12 pmKnoxville McGhee Tyson

1h 44m

IAD7:56 pmWashington, D.C. Dulles Intl

Nov 14

IAD9:16 pmWashington, D.C. Dulles Intl

1h 40m

TYS10:56 pmKnoxville McGhee Tyson

$86

Find similar

Allegiant Air

Nov 7

TYS6:12 pmKnoxville McGhee Tyson

1h 44m

IAD7:56 pmWashington, D.C. Dulles Intl

Nov 14

IAD9:16 pmWashington, D.C. Dulles Intl

1h 40m

TYS10:56 pmKnoxville McGhee Tyson

$90

Find similar

Allegiant Air

Oct 10

TYS7:02 pmKnoxville McGhee Tyson

1h 44m

IAD8:46 pmWashington, D.C. Dulles Intl

Oct 13

IAD9:36 pmWashington, D.C. Dulles Intl

1h 40m

TYS11:16 pmKnoxville McGhee Tyson

$94

Find similar

United Airlines flights from Knoxville to District of Columbia

Our best United Airlines deals on Knoxville to District of Columbia flight tickets

United Airlines

Aug 30

TYS7:25 pmKnoxville McGhee Tyson

1h 43m

IAD9:08 pmWashington, D.C. Dulles Intl

Sep 3

IAD8:45 amWashington, D.C. Dulles Intl

1h 43m

TYS10:28 amKnoxville McGhee Tyson

$179

Find similar

United Airlines

Sep 3

TYS7:25 pmKnoxville McGhee Tyson

1h 43m

IAD9:08 pmWashington, D.C. Dulles Intl

Sep 20

IAD12:55 pmWashington, D.C. Dulles Intl

1h 45m

TYS2:40 pmKnoxville McGhee Tyson

$184

Find similar

United Airlines

Sep 5

TYS5:45 amKnoxville McGhee Tyson

1h 43m

IAD7:28 amWashington, D.C. Dulles Intl

Sep 7

IAD8:45 amWashington, D.C. Dulles Intl

1h 43m

TYS10:28 amKnoxville McGhee Tyson

$189

Find similar

momondo Fare Finder

Use the filters below to find and compare flights from Knoxville to District of Columbia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

KnoxvilleWashington, D.C.

TYS - IAD

TYSIAD

Knoxville McGhee Tyson

Fri 11/7

6:12 pm-7:56 pm

Nonstop1h 44m

Washington, D.C. Dulles Intl

Fri 11/14

9:16 pm-10:56 pm

Nonstop1h 40m

$86

KnoxvilleWashington, D.C.

TYS - IAD

TYSIAD

Knoxville McGhee Tyson

Fri 11/7

6:12 pm-7:56 pm

Nonstop1h 44m

Washington, D.C. Dulles Intl

Fri 11/14

9:16 pm-10:56 pm

Nonstop1h 40m

$90

KnoxvilleWashington, D.C.

TYS - IAD

TYSIAD

Knoxville McGhee Tyson

Fri 11/7

6:12 pm-7:56 pm

Nonstop1h 44m

Washington, D.C. Dulles Intl

Fri 11/14

8:36 pm-8:16 am

1 stop11h 40m

$142

KnoxvilleWashington, D.C.

TYS - IAD

TYSIAD

Knoxville McGhee Tyson

Fri 11/7

6:12 pm-7:56 pm

Nonstop1h 44m

Washington, D.C. Dulles Intl

Fri 11/14

8:36 pm-8:16 am

1 stop11h 40m

$157

KnoxvilleWashington, D.C.

TYS - DCA

TYSDCA

Knoxville McGhee Tyson

Fri 10/24

6:03 am-7:45 am

Nonstop1h 42m

Washington, D.C. Reagan-National

Mon 10/27

8:24 pm-10:09 pm

Nonstop1h 45m

$189

KnoxvilleWashington, D.C.

TYS - IAD

TYSIAD

Knoxville McGhee Tyson

Fri 9/5

5:45 am-7:28 am

Nonstop1h 43m

Washington, D.C. Dulles Intl

Sun 9/7

8:45 am-10:28 am

Nonstop1h 43m

$189

KnoxvilleWashington, D.C.

TYS - DCA

TYSDCA

Knoxville McGhee Tyson

Thu 9/11

5:20 pm-6:59 pm

Nonstop1h 39m

Washington, D.C. Reagan-National

Sun 9/14

7:58 pm-9:41 pm

Nonstop1h 43m

$194

KnoxvilleWashington, D.C.

TYS - IAD

TYSIAD

Knoxville McGhee Tyson

Fri 10/24

5:16 pm-9:31 pm

1 stop4h 15m

Washington, D.C. Dulles Intl

Wed 10/29

5:10 pm-9:13 pm

1 stop4h 03m

$209

KnoxvilleWashington, D.C.

TYS - DCA

TYSDCA

Knoxville McGhee Tyson

Fri 10/10

8:10 pm-11:41 pm

1 stop3h 31m

Washington, D.C. Reagan-National

Mon 10/13

6:00 am-11:04 am

1 stop5h 04m

$209

KnoxvilleWashington, D.C.

TYS - IAD

TYSIAD

Knoxville McGhee Tyson

Fri 9/5

7:25 pm-9:08 pm

Nonstop1h 43m

Washington, D.C. Dulles Intl

Sun 9/7

8:45 am-10:28 am

Nonstop1h 43m

$249

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How to get the cheapest flight ticket from Knoxville to District of Columbia

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 cheapest month to fly to District of Columbia?

In general, July is the cheapest month to fly from Knoxville to District of Columbia. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $214. If you don’t want to visit District of Columbia in July, then you should wait until May to fly from Knoxville, when ticket prices are also cheap, with an average price of $249.

What is the cheapest day to depart on your flight to District of Columbia?

The cheapest day to depart on your flight to District of Columbia is on a Thursday when prices can be found for as low as $448. This is often the case because there is less demand to fly during this day of the week. On the other hand, Monday is the most expensive day to depart from Knoxville because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $804.

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

Flying to District of Columbia from Knoxville in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $328 when looking at flights departing in the afternoon. Flights to District of Columbia are more costly at noon, with an average ticket price of $1,005. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

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

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

How far in advance should I book a flight to District of Columbia?

You are more likely to see cheaper flights to District of Columbia from Knoxville when booking weeks ahead of your departure date. In general, you can expect to find flights to District of Columbia for around $311 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to District of Columbia from Knoxville for as low as $157 on momondo.

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

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

Cheap Knoxville to District of Columbia flight deals and tips

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

Best Price Found	$180
Fastest flight time	1h 36m
Direct flights	Every day
Airports in District of Columbia	2 airports

The best one-way flight to District of Columbia from Knoxville in the past 72 hours is $180. The best round-trip flight deal from Knoxville to District of Columbia found on momondo in the last 72 hours is $236.

The fastest flight from Knoxville to District of Columbia takes 1h 36m

Direct flights go from Knoxville to District of Columbia every day.

There are 2 airports near District of Columbia: Washington, D.C. Reagan-National (DCA), Washington, D.C. Dulles Intl (IAD)

Search flight deals

When did momondo last update prices for flights from Knoxville McGhee Tyson Airport to District of Columbia?
Prices for flights from Knoxville McGhee Tyson Airport to District of Columbia are updated daily.
How many operators does momondo search for flights from Knoxville McGhee Tyson Airport to District of Columbia?
The number of operators available for flights from Knoxville McGhee Tyson Airport to District of Columbia is 4 as of August 2025.
How old do you have to be to fly from Knoxville McGhee Tyson Airport to District of Columbia?
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 Knoxville McGhee Tyson Airport to District of Columbia.
What documentation or ID do you need to fly to District of Columbia?
The travel and health documents required for your trip to District of Columbia 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 District of Columbia. 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 Knoxville to District of Columbia?
momondo data reveals that the most frequently booked plane model on the route from Knoxville to District of Columbia is Embraer ERJ-135 / ERJ-140 / ERJ-145, representing 27.35% of all bookings. The subsequent popular models are Canadair (Bombardier) Regional Jet 700 at 23.84%, Airbus A320-100/200 at 17.53%, and Embraer 175 at 15.43%.

Best airlines flying from Knoxville to District of Columbia

Compare and see reviews for airlines that fly from Knoxville to District of Columbia with momondo

Airline	Rating	Free Cancellation	Price
Allegiant Air	PriceFrom $42	Free Cancellation	Rating 7.2 702 reviews	Search Allegiant Air flights
Delta	PriceFrom $132	Free Cancellation	Rating 7.9 7,981 reviews	Search Delta flights
American Airlines	PriceFrom $189	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
United Airlines	PriceFrom $219	Free Cancellation	Rating 7.4 8,940 reviews	Search United Airlines flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Knoxville to District of Columbia. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo allows you to filter the results for Knoxville to District of Columbia flights to just show those with flexible booking policies.

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

Once you have performed a search for Knoxville to District of Columbia flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are not ready to book a flight from Knoxville to District of Columbia now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to District of Columbia and let you know when they change.

An easier way to manage your District of Columbia trip

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Cheap flights from Knoxville to District of Columbia from $40

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Find the cheapest flights from Knoxville to District of Columbia

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Allegiant Air flights from Knoxville to District of Columbia

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Use the filters below to find and compare flights from Knoxville to District of Columbia that are best for you.

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How to get the cheapest flight ticket from Knoxville to District of Columbia

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 District of Columbia?

What is the cheapest day to depart on your flight to District of Columbia?

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

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

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

How far in advance should I book a flight to District of Columbia?

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

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

What is the cheapest airline that flies from Knoxville McGhee Tyson to District of Columbia?

Allegiant Air, United Airlines, and American Airlines are the most popular carriers operating from Knoxville McGhee Tyson to District of Columbia

What airlines fly to District of Columbia?

How many flights depart from Knoxville to District of Columbia on average per day?

As of August 2025, there are 21 flights per day flying from Knoxville to District of Columbia. The most common time of day flights depart is 7:00PM, with 37% of flights taking off at noon.

How many flights depart from Knoxville to District of Columbia on average per week?

As of August 2025, 147 flights take off from Knoxville and land in District of Columbia each week. The most common flight departure day for this route is Mon, with 17% of weekly flights taking off on this day.

Cheap Knoxville to District of Columbia flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in District of Columbia

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

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

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

What documentation or ID do you need to fly to District of Columbia?

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

Best airlines flying from Knoxville to District of Columbia

Compare and see reviews for airlines that fly from Knoxville to District of Columbia with momondo

Why use momondo?

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

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

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

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

An easier way to manage your District of Columbia 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.

Find better results for your trip to District of Columbia

Popular cities in District of Columbia

Popular flights according to clicks in the last 7 days on momondo