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

Frontier, American Airlines, and Delta are the most popular carriers operating from Knoxville McGhee Tyson to Washington, D.C. Reagan-National

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

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

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

The number of operators available for flights from Knoxville McGhee Tyson Airport to Washington, D.C. Reagan-National Airport is 1 as of November 2025.

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

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Knoxville McGhee Tyson Airport to Washington, D.C. Reagan-National Airport.

What documentation or ID do you need to fly to Washington, D.C. Reagan-National Airport?

The travel and health documents you'll need for your trip to Washington, D.C. Reagan-National 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 Washington, D.C. Reagan-National Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$105 Cheap Flights from Knoxville to Washington, D.C. Reagan-National Airport in 2025/26

Q: How many flights depart from Knoxville to Washington, D.C. Reagan-National Airport on average per week?

As of November 2025, there are 23 flights per week flying from Knoxville to Washington, D.C. Reagan-National Airport. The most common day of the week flights depart is Mon, with 17% of flights taking off on this day.

Q: How many flights depart from Knoxville to Washington, D.C. Reagan-National Airport on average per day?

As of November 2025, 3 flights take off from Knoxville and land in Washington, D.C. Reagan-National Airport each day. The most common flight departure time for this route is 6:00AM, with 71% of daily flights taking off at noon.

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4:52 pm - 1:06 pmTYS-DCA

20h 14m1 stop

6:00 pm - 3:57 pmDCA-TYS

21h 57m1 stop

$139Frontier

Find Deal

jue., dic. 11 - sáb., dic. 13

4:52 pm - 1:06 pmTYS-DCA

20h 14m1 stop

8:00 am - 3:57 pmDCA-TYS

7h 57m1 stop

$179Frontier

Find Deal

lun., dic. 8 - jue., dic. 11

6:00 am - 7:48 amTYS-DCA

1h 48mnonstop

1:59 pm - 3:46 pmDCA-TYS

1h 47mnonstop

$189American Airlines

Find Deal

jue., dic. 11 - sáb., dic. 13

11:22 am - 12:59 pmTYS-DCA

1h 37mnonstop

8:30 am - 10:33 amDCA-TYS

2h 03mnonstop

$204American Airlines

Find Deal

mié., nov. 19 - mié., dic. 3

8:35 am - 3:00 pmTYS-DCA

6h 25m1 stop

6:00 am - 9:38 amDCA-TYS

3h 38m1 stop

$209Delta

Find Deal

sáb., dic. 6 - mié., dic. 10

2:41 pm - 8:41 pmTYS-DCA

6h 00m1 stop

1:42 pm - 8:02 pmDCA-TYS

6h 20m1 stop

$224Delta

Find Deal

mié., nov. 19 - mié., dic. 3

6:35 am - 12:25 pmTYS-DCA

5h 50m1 stop

6:10 am - 1:40 pmDCA-TYS

7h 30m1 stop

$277Southwest

Find Deal

mar., mar. 24 - mié., mar. 25

6:35 am - 3:55 pmTYS-DCA

9h 20m2 stops

6:10 am - 1:40 pmDCA-TYS

7h 30m1 stop

$282Southwest

Find Deal

mar., mar. 24 - mié., mar. 25

6:30 am - 9:59 pmTYS-DCA

15h 29m1 stop

6:00 pm - 10:22 pmDCA-TYS

28h 22m2 stops

$300Multiple Airlines

Find Deal

jue., dic. 11 - sáb., dic. 13

8:32 pm - 4:59 pmTYS-DCA

20h 27m2 stops

6:00 pm - 1:11 pmDCA-TYS

19h 11m1 stop

$344Multiple Airlines

Find Deal

sáb., dic. 6 - mié., dic. 10

American Airlines flights from Knoxville to Washington, D.C. Reagan-National Airport

Our best American Airlines deals on Knoxville to Washington, D.C. Reagan-National Airport flight tickets

American Airlines

Dec 11

TYS6:00 amKnoxville McGhee Tyson

1h 48m

DCA7:48 amWashington, D.C. Reagan-National

Dec 13

DCA1:59 pmWashington, D.C. Reagan-National

1h 47m

TYS3:46 pmKnoxville McGhee Tyson

$189

Find similar

American Airlines

Nov 19

TYS11:22 amKnoxville McGhee Tyson

1h 37m

DCA12:59 pmWashington, D.C. Reagan-National

Dec 3

DCA8:30 amWashington, D.C. Reagan-National

2h 03m

TYS10:33 amKnoxville McGhee Tyson

$204

Find similar

American Airlines

Dec 11

TYS4:59 pmKnoxville McGhee Tyson

1h 38m

DCA6:37 pmWashington, D.C. Reagan-National

Dec 13

DCA7:00 amWashington, D.C. Reagan-National

6h 05m

1 stop

TYS1:05 pmKnoxville McGhee Tyson

$220

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Delta flights from Knoxville to Washington, D.C. Reagan-National Airport

Our best Delta deals on Knoxville to Washington, D.C. Reagan-National Airport flight tickets

Delta

Dec 6

TYS8:35 amKnoxville McGhee Tyson

6h 25m

1 stop

DCA3:00 pmWashington, D.C. Reagan-National

Dec 10

DCA6:00 amWashington, D.C. Reagan-National

3h 38m

1 stop

TYS9:38 amKnoxville McGhee Tyson

$209

Find similar

Delta

Nov 19

TYS2:41 pmKnoxville McGhee Tyson

6h 00m

1 stop

DCA8:41 pmWashington, D.C. Reagan-National

Dec 3

DCA1:42 pmWashington, D.C. Reagan-National

6h 20m

1 stop

TYS8:02 pmKnoxville McGhee Tyson

$224

Find similar

Delta

Nov 14

TYS5:35 amKnoxville McGhee Tyson

3h 35m

1 stop

DCA9:10 amWashington, D.C. Reagan-National

Nov 17

DCA4:10 pmWashington, D.C. Reagan-National

3h 56m

1 stop

TYS8:06 pmKnoxville McGhee Tyson

$269

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momondo Fare Finder

Use the filters below to find and compare flights from Knoxville to Washington, D.C. Reagan-National Airport that are best for you.

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Fly to

Route

Depart

Return

Price

KnoxvilleWashington, D.C.

TYS - DCA

TYSDCA

Knoxville McGhee Tyson

jue. 12/11

4:52 pm-1:06 pm

1 stop20h 14m

Washington, D.C. Reagan-National

sáb. 12/13

6:00 pm-3:57 pm

1 stop21h 57m

$139

KnoxvilleWashington, D.C.

TYS - DCA

TYSDCA

Knoxville McGhee Tyson

lun. 12/8

4:52 pm-1:06 pm

1 stop20h 14m

Washington, D.C. Reagan-National

jue. 12/11

8:00 am-3:57 pm

1 stop7h 57m

$179

KnoxvilleWashington, D.C.

TYS - DCA

TYSDCA

Knoxville McGhee Tyson

jue. 12/11

6:00 am-7:48 am

Nonstop1h 48m

Washington, D.C. Reagan-National

sáb. 12/13

1:59 pm-3:46 pm

Nonstop1h 47m

$189

KnoxvilleWashington, D.C.

TYS - DCA

TYSDCA

Knoxville McGhee Tyson

mié. 11/19

11:22 am-12:59 pm

Nonstop1h 37m

Washington, D.C. Reagan-National

mié. 12/3

8:30 am-10:33 am

Nonstop2h 03m

$204

KnoxvilleWashington, D.C.

TYS - DCA

TYSDCA

Knoxville McGhee Tyson

sáb. 12/6

8:35 am-3:00 pm

1 stop6h 25m

Washington, D.C. Reagan-National

mié. 12/10

6:00 am-9:38 am

1 stop3h 38m

$209

KnoxvilleWashington, D.C.

TYS - DCA

TYSDCA

Knoxville McGhee Tyson

mié. 11/19

2:41 pm-8:41 pm

1 stop6h 00m

Washington, D.C. Reagan-National

mié. 12/3

1:42 pm-8:02 pm

1 stop6h 20m

$224

KnoxvilleWashington, D.C.

TYS - DCA

TYSDCA

Knoxville McGhee Tyson

mar. 3/24

6:35 am-12:25 pm

1 stop5h 50m

Washington, D.C. Reagan-National

mié. 3/25

6:10 am-1:40 pm

1 stop7h 30m

$277

KnoxvilleWashington, D.C.

TYS - DCA

TYSDCA

Knoxville McGhee Tyson

mar. 3/24

6:35 am-3:55 pm

2 stops9h 20m

Washington, D.C. Reagan-National

mié. 3/25

6:10 am-1:40 pm

1 stop7h 30m

$282

KnoxvilleWashington, D.C.

TYS - DCA

TYSDCA

Knoxville McGhee Tyson

jue. 12/11

6:30 am-9:59 pm

1 stop15h 29m

Washington, D.C. Reagan-National

sáb. 12/13

6:00 pm-10:22 pm

2 stops28h 22m

$300

KnoxvilleWashington, D.C.

TYS - DCA

TYSDCA

Knoxville McGhee Tyson

sáb. 12/6

8:32 pm-4:59 pm

2 stops20h 27m

Washington, D.C. Reagan-National

mié. 12/10

6:00 pm-1:11 pm

1 stop19h 11m

$344

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Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Knoxville to Washington, D.C. Reagan-National Airport

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

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Other information

What is the cheapest month to fly to Washington, D.C. Reagan-National Airport?

The month of August is, on average, the cheapest month to fly to Washington, D.C. Reagan-National Airport from Knoxville, with most prices found around $229. If you aren’t able to travel to Washington, D.C. Reagan-National Airport during the month of August, then flying in June is also cheap. Prices for this month can be found on momondo for an average of $259.

What is the cheapest day to depart on your flight to Washington, D.C. Reagan-National Airport?

The cheapest day to depart from Knoxville to Washington, D.C. Reagan-National Airport is on a Friday. Travelers who choose to depart for Washington, D.C. Reagan-National Airport on a Friday will often find tickets for as low as $306. Flights from Knoxville to Washington, D.C. Reagan-National Airport on a Sunday will generally be more expensive and average around $488. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Washington, D.C. Reagan-National Airport?

Our data shows that the cheapest Knoxville to Washington, D.C. Reagan-National Airport flights are usually those with departure times in the afternoon. Our users have found flights to Washington, D.C. Reagan-National Airport in the afternoon for as low as $304. In contrast, the most expensive time of day to depart to Washington, D.C. Reagan-National Airport is in the morning when prices are around $339.

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

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

How far in advance should I book a flight to Washington, D.C. Reagan-National Airport?

You are more likely to see cheaper flights to Washington, D.C. Reagan-National Airport from Knoxville when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. Reagan-National Airport for around $292 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. Reagan-National Airport from Knoxville for as low as $245 on momondo.

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

There are 3 cabin classes available to choose from on Knoxville McGhee Tyson to Washington, D.C. Reagan-National flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Knoxville to Washington, D.C. Reagan-National Airport flight prices changed over time?

As of November 2025, prices for Knoxville to Washington, D.C. Reagan-National Airport flights are approximately 44% more expensive when compared to flights at the same time last year.

When to book flights from Knoxville to Washington, D.C. Reagan-National Airport

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

Estimated round-trip price

Cheap Knoxville to Washington, D.C. Reagan-National Airport (TYS to DCA) flight deals and tips

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

Best Price Found	$218
Fastest flight time	1h 36m
Direct flights	Every day

The best one-way flight to Washington, D.C. Reagan-National Airport from Knoxville in the past 72 hours is $218. The best round-trip flight deal from Knoxville to Washington, D.C. Reagan-National Airport found on momondo in the last 72 hours is $254.

The fastest flight from Knoxville to Washington, D.C. Reagan-National Airport takes 1h 36m

Direct flights go from Knoxville to Washington, D.C. Reagan-National Airport every day.

Search flight deals

How far is Knoxville McGhee Tyson to Washington, D.C. Reagan-National by plane?
Washington, D.C. Reagan-National is 426.9 mi away from Knoxville McGhee Tyson. Flights usually cover this in 1h 37m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Knoxville McGhee Tyson Airport to Washington, D.C. Reagan-National Airport?
Prices for flights from Knoxville McGhee Tyson Airport to Washington, D.C. Reagan-National Airport are updated daily.
How many operators does momondo search for flights from Knoxville McGhee Tyson Airport to Washington, D.C. Reagan-National Airport?
The number of operators available for flights from Knoxville McGhee Tyson Airport to Washington, D.C. Reagan-National Airport is 1 as of November 2025.
How old do you have to be to fly from Knoxville McGhee Tyson Airport to Washington, D.C. Reagan-National Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Knoxville McGhee Tyson Airport to Washington, D.C. Reagan-National Airport.
What documentation or ID do you need to fly to Washington, D.C. Reagan-National Airport?
The travel and health documents you'll need for your trip to Washington, D.C. Reagan-National 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 Washington, D.C. Reagan-National 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 Knoxville to Washington, D.C. Reagan-National Airport?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Knoxville to Washington, D.C. Reagan-National Airport is Canadair (Bombardier) Regional Jet 700 (37.04% of total bookings). The next most popular plane models are Embraer ERJ-135 / ERJ-140 / ERJ-145 (26.19%), Canadair (Bombardier) Regional Jet 900 (17.99%), and Airbus A320-100/200 (13.23%).
What is the most popular airline from Knoxville to Washington, D.C. Reagan-National Airport?
Based on momondo bookings for flights between Knoxville and Washington, D.C. Reagan-National Airport, the leading airline is American Airlines, making up 100% of the total bookings.

Best airlines flying from Knoxville to Washington, D.C. Reagan-National Airport

Compare and see reviews for airlines that fly from Knoxville to Washington, D.C. Reagan-National Airport with momondo

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $189	Free Cancellation	Rating 7.2 11,040 reviews		Search American Airlines flights

American Airlines Flights From Knoxville to Washington, D.C. Reagan-National Airport
American Airlines flight deals from Knoxville to Washington, D.C. Reagan-National Airport start from $189 round-trip. Over the 18 American Airlines flights for this route in a normal week, average airfare is usually $294 round-trip - but some users have found much cheaper deals with momondo.

Alexandria

National Harbor

Gettysburg

Arlington

Woodbridge

Waldorf

Tysons

Laurel

Colonial Beach

Silver Spring

Fredericksburg

Towson

Rockville

Manassas

Reston

Gaithersburg

Fairfax

Glen Burnie

Springfield

Linthicum Heights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Washington, D.C. from Knoxville.

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

Yes. All flights to Washington, D.C. from Knoxville on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search for Knoxville to Washington, D.C. 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 Washington, D.C. right now. Can momondo alert me if prices change?

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

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Cheap flights from Knoxville to Washington, D.C. from $105

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Knoxville to Washington, D.C. departing on 11/13. 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 Knoxville to Washington, D.C. Reagan-National Airport

Our best American Airlines deals on Knoxville to Washington, D.C. Reagan-National Airport flight tickets

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Our best Delta deals on Knoxville to Washington, D.C. Reagan-National Airport flight tickets

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How to get the cheapest flight ticket from Knoxville to Washington, D.C. Reagan-National Airport

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 Washington, D.C. Reagan-National Airport?

What is the cheapest day to depart on your flight to Washington, D.C. Reagan-National Airport?

What is the cheapest time of day to depart on your flight to Washington, D.C. Reagan-National Airport?

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

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

How far in advance should I book a flight to Washington, D.C. Reagan-National Airport?

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

There are 3 cabin classes available to choose from on Knoxville McGhee Tyson to Washington, D.C. Reagan-National flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Knoxville to Washington, D.C. Reagan-National Airport flight prices changed over time?

As of November 2025, prices for Knoxville to Washington, D.C. Reagan-National Airport flights are approximately 44% more expensive when compared to flights at the same time last year.

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

Frontier, American Airlines, and Delta are the most popular carriers operating from Knoxville McGhee Tyson to Washington, D.C. Reagan-National

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

As of November 2025, 3 flights take off from Knoxville and land in Washington, D.C. Reagan-National Airport each day. The most common flight departure time for this route is 6:00AM, with 71% of daily flights taking off at noon.

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

As of November 2025, there are 23 flights per week flying from Knoxville to Washington, D.C. Reagan-National Airport. The most common day of the week flights depart is Mon, with 17% of flights taking off on this day.

When to book flights from Knoxville to Washington, D.C. Reagan-National Airport

Cheap Knoxville to Washington, D.C. Reagan-National Airport (TYS to DCA) flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

How far is Knoxville McGhee Tyson to Washington, D.C. Reagan-National by plane?

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

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

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

What documentation or ID do you need to fly to Washington, D.C. Reagan-National Airport?

What is the most popular plane model from Knoxville to Washington, D.C. Reagan-National Airport?

What is the most popular airline from Knoxville to Washington, D.C. Reagan-National Airport?

Best airlines flying from Knoxville to Washington, D.C. Reagan-National Airport

Compare and see reviews for airlines that fly from Knoxville to Washington, D.C. Reagan-National Airport with momondo

American Airlines Flights From Knoxville to Washington, D.C. Reagan-National Airport

Traveling to a place near Washington, D.C.?

Why use momondo?

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

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

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

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

An easier way to manage your Washington, D.C. Reagan-National Airport 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 Washington, D.C.

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