HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Reagan-National

$107+ Cheap flights from Knoxville (TYS) to Reagan-National (DCA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/25. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — DCA
Aug 29 — Sep 51
Sat 8/29
Sat 9/5
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Knoxville to Reagan-National with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Knoxville to Reagan-National

Cheapest flights from Knoxville to Reagan-National
Explore the most affordable flight options available from Knoxville to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2026.

This American Airlines deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1911:15 am
TYS
-
DCA
Nonstop1h 44m
American Airlines
Wed 8/267:46 pm
DCA
-
TYS
Nonstop1h 48m
American Airlines
Deal found 7/26$193
This American Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/207:04 am
TYS
-
DCA
Nonstop1h 53m
American Airlines
Mon 8/249:00 am
DCA
-
TYS
Nonstop1h 45m
American Airlines
Deal found 7/29$194
This Delta deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/35:40 am
TYS
-
DCA
1 stop3h 30m
Delta
Sat 11/79:00 am
DCA
-
TYS
1 stop4h 31m
Delta
Deal found 7/30$213
This American Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/257:15 am
TYS
-
DCA
Nonstop1h 49m
American Airlines
Mon 9/288:40 am
DCA
-
TYS
Nonstop1h 58m
American Airlines
Deal found 7/30$215
This American Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/47:04 am
TYS
-
DCA
Nonstop1h 53m
American Airlines
Sun 9/67:46 pm
DCA
-
TYS
Nonstop1h 48m
American Airlines
Deal found 7/29$216
This Southwest deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/311:00 pm
TYS
-
DCA
1 stop10h 55m
Southwest
Tue 9/112:55 pm
DCA
-
TYS
1 stop6h 00m
Southwest
Deal found 7/29$218
This American Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/247:15 am
TYS
-
DCA
Nonstop1h 49m
American Airlines
Sun 9/277:59 pm
DCA
-
TYS
Nonstop1h 43m
American Airlines
Deal found 7/30$220
This Southwest deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/167:00 am
TYS
-
DCA
2 stops8h 40m
Southwest
Wed 12/96:10 am
DCA
-
TYS
2 stops6h 05m
Southwest
Deal found 7/25$223
This American Airlines deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/36:11 pm
TYS
-
DCA
Nonstop1h 48m
American Airlines
Sat 11/711:56 am
DCA
-
TYS
1 stop4h 52m
American Airlines
Deal found 7/26$225

Find flight deals from Knoxville to Reagan-National

Discover tips and strategies to find the most affordable flight options for your journey from Knoxville (TYS) to Reagan-National (DCA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 30, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$193
(American Airlines)

One-way from

$107
(Southwest)

Popular in

March

Cheapest in

August

Average price

$359

Good round-trip deal

$297 or less

Good one-way deal

$288 or less
Provider with most accurate pricing for Knoxville McGhee Tyson-Washington, D.C. Reagan-National flight deals.
Search Deals
Provider most trusted by Cheapflights users for Knoxville McGhee Tyson-Washington, D.C. Reagan-National flights.
Search Deals
From Knoxville McGhee Tyson to Washington, D.C. Reagan-National
Search Deals
One-way flight from Knoxville McGhee Tyson to Washington, D.C. Reagan-National
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($44 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals
Price to beat on a round-trip flight from Knoxville McGhee Tyson to Washington, D.C. Reagan-National.
Search Deals
Price to beat on a one-way flight from Knoxville McGhee Tyson to Washington, D.C. Reagan-National.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Knoxville to Reagan-National 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, Cheapflights users made 2,558,603 searches. Data last updated July 30, 2026.
Use the filters below to find and compare flights from Knoxville to Washington, D.C. Reagan-National Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

KnoxvilleWashington, D.C.

TYS - DCA

TYSDCA

Knoxville McGhee Tyson

Mon 11/2

2:38 pm-8:44 pm

1 stop6h 06m

Washington, D.C. Reagan-National

Mon 11/9

2:00 pm-6:26 pm

1 stop4h 26m

$213

KnoxvilleWashington, D.C.

TYS - DCA

TYSDCA

Knoxville McGhee Tyson

Tue 11/3

5:40 am-9:10 am

1 stop3h 30m

Washington, D.C. Reagan-National

Sat 11/7

9:00 am-1:31 pm

1 stop4h 31m

$213

KnoxvilleWashington, D.C.

TYS - DCA

TYSDCA

Knoxville McGhee Tyson

Tue 10/20

1:00 pm-10:35 pm

1 stop9h 35m

Washington, D.C. Reagan-National

Mon 10/26

6:10 am-1:10 pm

1 stop7h 00m

$218

KnoxvilleWashington, D.C.

TYS - DCA

TYSDCA

Knoxville McGhee Tyson

Fri 9/18

5:45 pm-10:30 pm

1 stop4h 45m

Washington, D.C. Reagan-National

Mon 9/21

6:00 am-5:10 pm

1 stop11h 10m

$240

KnoxvilleWashington, D.C.

TYS - DCA

TYSDCA

Knoxville McGhee Tyson

Tue 8/25

7:00 am-3:45 pm

2 stops8h 45m

Washington, D.C. Reagan-National

Fri 8/28

6:55 am-1:25 pm

1 stop6h 30m

$240

KnoxvilleWashington, D.C.

TYS - DCA

TYSDCA

Knoxville McGhee Tyson

Thu 10/8

5:40 am-9:10 am

1 stop3h 30m

Washington, D.C. Reagan-National

Tue 10/13

6:59 am-10:54 am

1 stop3h 55m

$246
Quickest round-trip

KnoxvilleWashington, D.C.

TYS - DCA

TYSDCA

Knoxville McGhee Tyson

Thu 10/1

5:40 am-9:12 am

1 stop3h 32m

Washington, D.C. Reagan-National

Sun 10/4

6:00 am-9:29 am

1 stop3h 29m

$250

KnoxvilleWashington, D.C.

TYS - DCA

TYSDCA

Knoxville McGhee Tyson

Thu 8/20

4:38 pm-9:45 pm

1 stop5h 07m

Washington, D.C. Reagan-National

Mon 8/24

7:45 pm-11:52 pm

1 stop4h 07m

$250

KnoxvilleWashington, D.C.

TYS - DCA

TYSDCA

Knoxville McGhee Tyson

Wed 9/30

7:00 am-3:45 pm

2 stops8h 45m

Washington, D.C. Reagan-National

Sat 10/3

6:00 am-5:50 pm

2 stops11h 50m

$300

KnoxvilleWashington, D.C.

TYS - DCA

TYSDCA

Knoxville McGhee Tyson

Mon 11/2

7:05 am-3:40 pm

2 stops8h 35m

Washington, D.C. Reagan-National

Mon 11/9

6:00 am-12:10 pm

1 stop6h 10m

$322

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 18 resultsSorted by cheapest first
1
2

Compare providers for flights from Knoxville to Reagan-National

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Knoxville to Reagan-National in July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Knoxville-Washington, D.C. Reagan-National Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Knoxville-Washington, D.C. Reagan-National Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Knoxville-Washington, D.C. Reagan-National Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Knoxville-Washington, D.C. Reagan-National Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Knoxville-Washington, D.C. Reagan-National Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Knoxville to Reagan-National

Have a flexible travel schedule? Discover the best time to fly to Reagan-National from Knoxville with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Knoxville to Washington, D.C. Reagan-National Airport

What is the cheapest month to book a flight from Knoxville to Washington, D.C. Reagan-National Airport?

Currently, August is the cheapest month in which you can book a flight from Knoxville to Washington, D.C. Reagan-National Airport (average of $237). Flying from Knoxville to Washington, D.C. Reagan-National Airport in March is currently the most expensive (average of $392). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from TYS to DCA?

Find hourly flight availability from Knoxville to Reagan-National. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 30, 2026.

It’s optimal to fly from Knoxville to Washington, D.C. Reagan-National Airport in the afternoon. By choosing this option you can save up to 21% on the cost of your flight, compared to a flight at noon.

How much does it cost to fly round-trip from Knoxville to Washington, D.C. Reagan-National Airport?

Airfare is below average for this route at the moment.

Knoxville to Washington, D.C. Reagan-National Airport flights typically cost between $199 and $289 in August.
The cheapest round-trip price found within the last 5 days was $193 on American Airlines (Aug 19-Aug 26).

Reviews of airlines servicing Reagan-National

Get insights into the airlines that provide service to Reagan-National. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Reagan-National. Reviews last updated July 30, 2026.
See what other customers who have flown with American Airlines from Knoxville to Washington, D.C. Reagan-National Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.1
Good
11,841 reviews

Overall

7.1

Comfort

7.2

Crew

7.9

Food

6.4

Boarding

7.5

Entertainment

6.8

Reviews

1 / 20
8.0
Excellent

Olwin,Jul 2026

MCO - DCA

The flight was great overall. But we need better food on flights and the baggage fees are too high.
American Airlines
7.1
Good
11,841 reviews
American Airlines
7.1
Good
11,841 reviews

Overall

7.1

Comfort

7.2

Crew

7.9

Food

6.4

Boarding

7.5

Entertainment

6.8

Reviews

1 / 20
8.0
Excellent

Olwin,Jul 2026

MCO - DCA

The flight was great overall. But we need better food on flights and the baggage fees are too high.

Related info for your journey

Find useful and relevant information for your journey from Knoxville to Reagan-National. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Knoxville to Washington, D.C. Reagan-National?

    If you book a flight to Washington, D.C. Reagan-National from Knoxville, you will be flying from McGhee Tyson, which is the city’s only airport. Knoxville McGhee Tyson (TYS) is located 11.3 mi from the center of Knoxville. There is 1 flight from McGhee Tyson to Washington, D.C. Reagan-National per day from 1 airline.

  • How long is the flight from Knoxville to Washington, D.C. Reagan-National Airport?

    For as low as $213, Delta can have you in Washington, D.C. Reagan-National Airport from Knoxville in 6h 06m. Airlines will cover a distance of 436 mi. This flight may include one or multiple stops.

  • What is the cheapest airline to fly from Knoxville to Washington, D.C. Reagan-National Airport round-trip?

    According to our current data, American Airlines ($189), offers the cheapest pricing from Knoxville to Washington, D.C. Reagan-National Airport. You may be able to fly from Knoxville to Washington, D.C. Reagan-National Airport for 34% less than the average price by searching for this airline.

  • What are the most reliable airlines from Knoxville to Washington, D.C. Reagan-National Airport?

    Before booking your flight to Washington, D.C. Reagan-National Airport from Knoxville, check out the most reliable airlines to get you to your destination on time: Republic Airways (100%), Alaska Airlines (83%), PSA Airlines( 72%).

  • What are the cheapest flights from Knoxville to Washington, D.C. Reagan-National Airport?

    On average you can expect to pay $358 for a flight from Knoxville to Washington, D.C. Reagan-National Airport. The cheapest flight overall is $237 while the most popular route, (Knoxville McGhee Tyson - Washington, D.C. Reagan-National) is currently priced at $213.

  • Can I find deals for flights from Knoxville to Reagan-National that include hotel bookings?

    Yes. In addition to deals on Knoxville to Reagan-National flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Knoxville to Reagan-National?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Knoxville to Reagan-National.

  • Can I find deals for business class flights from Knoxville to Reagan-National?

    Yes. Cheapflights offers flight deals from Knoxville to Reagan-National by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Knoxville to Washington, D.C. Reagan-National Airport?

    Currently, August is the cheapest month in which you can book a flight from Knoxville to Washington, D.C. Reagan-National Airport (average of $237). Flying from Knoxville to Washington, D.C. Reagan-National Airport in March is currently the most expensive (average of $392). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Washington, D.C. Reagan-National Airport?

Book flights to Washington, D.C. Reagan-National Airport if you plan to visit one of these locations
Alexandria
Owings Mills
Arlington
Tysons
Springfield
Lanham
Reston
Herndon
Rockville
Hyattsville
Fredericksburg
Falls Church
Hanover
Manassas
Laurel
Clinton
Hunt Valley
Cordova
Woodbridge
Largo

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top airline flying from Knoxville to Reagan-National

Discover the top airline that operate flights from Knoxville to Reagan-National. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 30, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$189Average$278FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.