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

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 9/28. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — TYS
Sep 1 — Sep 81
Tue 9/1
Tue 9/8
1 adult, Economy
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Cheapflights Tip: The best prices from Washington, D.C. Reagan-National to Knoxville McGhee Tyson are usually found in January or February, booked 82 days in advance, depart on a Saturday or Tuesday and return on a Saturday

Cheap flight deals from Reagan-National to Knoxville

Cheapest flights from Reagan-National to Knoxville
Explore the most affordable flight options available from Reagan-National to Knoxville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 2, 2026.

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 8/277:46 pm
DCA
-
TYS
Nonstop1h 48m
American Airlines
Thu 9/37:04 am
TYS
-
DCA
Nonstop1h 53m
American Airlines
Deal found 7/30$193
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.
Thu 9/106:55 am
DCA
-
TYS
1 stop5h 25m
Southwest
Sat 9/124:55 pm
TYS
-
DCA
1 stop3h 45m
Southwest
Deal found 7/29$213
This Delta deal was found by Cheapflights users on 7/28. 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.
Thu 9/36:00 am
DCA
-
TYS
1 stop3h 36m
Delta
Sun 9/66:00 am
TYS
-
DCA
1 stop5h 27m
Delta
Deal found 7/28$214
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 8/217:46 pm
DCA
-
TYS
Nonstop1h 48m
American Airlines
Mon 8/247:31 pm
TYS
-
DCA
Nonstop1h 52m
American Airlines
Deal found 7/30$215
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.
Thu 8/276:00 am
DCA
-
TYS
1 stop11h 10m
Southwest
Thu 9/35:45 pm
TYS
-
DCA
1 stop4h 45m
Southwest
Deal found 7/29$218
This American Airlines deal was found by Cheapflights users on 7/28. 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.
Sat 8/223:40 pm
DCA
-
TYS
Nonstop1h 50m
American Airlines
Sun 8/237:07 am
TYS
-
DCA
Nonstop1h 53m
American Airlines
Deal found 7/28$220
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/246:05 am
DCA
-
TYS
2 stops12h 30m
Southwest
Wed 8/265:30 pm
TYS
-
DCA
1 stop6h 25m
Southwest
Deal found 7/30$224
This American Airlines deal was found by Cheapflights users on 7/31. 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 9/107:59 pm
DCA
-
TYS
Nonstop1h 43m
American Airlines
Tue 9/157:15 am
TYS
-
DCA
Nonstop1h 49m
American Airlines
Deal found 7/31$227
This American Airlines deal was found by Cheapflights users on 8/2. 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 9/167:59 pm
DCA
-
TYS
Nonstop1h 43m
American Airlines
Wed 9/2311:08 am
TYS
-
DCA
Nonstop1h 44m
American Airlines
Deal found 8/2$228

Find flight deals from Reagan-National to Knoxville

Discover tips and strategies to find the most affordable flight options for your journey from Reagan-National (DCA) to Knoxville (TYS). 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 August 2, 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

December

Cheapest in

January

Average price

$297

Good round-trip deal

$309 or less

Good one-way deal

$243 or less
Provider with most accurate pricing for Washington, D.C. Reagan-National-Knoxville McGhee Tyson flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. Reagan-National-Knoxville McGhee Tyson flights.
Search Deals
From Washington, D.C. Reagan-National to Knoxville McGhee Tyson
Search Deals
One-way flight from Washington, D.C. Reagan-National to Knoxville McGhee Tyson
Search Deals
High demand for flights, 3% potential price rise
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($13 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2026
Search Deals
Price to beat on a round-trip flight from Washington, D.C. Reagan-National to Knoxville McGhee Tyson.
Search Deals
Price to beat on a one-way flight from Washington, D.C. Reagan-National to Knoxville McGhee Tyson.
Search Deals

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Knoxville

DCA - TYS

DCATYS

Washington, D.C. Reagan-National

Thu 9/3

6:00 am-9:36 am

1 stop3h 36m

Knoxville McGhee Tyson

Sun 9/6

6:00 am-11:27 am

1 stop5h 27m

$214

Washington, D.C.Knoxville

DCA - TYS

DCATYS

Washington, D.C. Reagan-National

Thu 9/10

6:55 am-12:20 pm

1 stop5h 25m

Knoxville McGhee Tyson

Sat 9/12

6:50 am-4:15 pm

2 stops9h 25m

$218

Washington, D.C.Knoxville

DCA - TYS

DCATYS

Washington, D.C. Reagan-National

Mon 8/24

6:05 am-6:35 pm

2 stops12h 30m

Knoxville McGhee Tyson

Wed 8/26

5:30 pm-11:55 pm

1 stop6h 25m

$224

Washington, D.C.Knoxville

DCA - TYS

DCATYS

Washington, D.C. Reagan-National

Fri 10/30

6:59 am-10:54 am

1 stop3h 55m

Knoxville McGhee Tyson

Mon 11/2

2:38 pm-8:44 pm

1 stop6h 06m

$252

Washington, D.C.Knoxville

DCA - TYS

DCATYS

Washington, D.C. Reagan-National

Thu 9/10

6:55 am-12:20 pm

1 stop5h 25m

Knoxville McGhee Tyson

Thu 9/17

1:00 pm-11:55 pm

1 stop10h 55m

$252

Washington, D.C.Knoxville

DCA - TYS

DCATYS

Washington, D.C. Reagan-National

Wed 8/26

6:00 am-11:11 am

1 stop5h 11m

Knoxville McGhee Tyson

Sat 8/29

5:00 pm-8:33 pm

1 stop3h 33m

$267

Washington, D.C.Knoxville

DCA - TYS

DCATYS

Washington, D.C. Reagan-National

Tue 8/25

6:05 am-12:05 pm

2 stops6h 00m

Knoxville McGhee Tyson

Wed 8/26

5:30 pm-11:55 pm

1 stop6h 25m

$272
Quickest round-trip

Washington, D.C.Knoxville

DCA - TYS

DCATYS

Washington, D.C. Reagan-National

Fri 8/21

7:45 pm-11:52 pm

1 stop4h 07m

Knoxville McGhee Tyson

Wed 8/26

4:38 pm-8:33 pm

1 stop3h 55m

$278

Washington, D.C.Knoxville

DCA - TYS

DCATYS

Washington, D.C. Reagan-National

Sun 8/30

6:05 am-12:25 pm

1 stop6h 20m

Knoxville McGhee Tyson

Thu 9/3

5:45 pm-10:30 pm

1 stop4h 45m

$322

Washington, D.C.Knoxville

DCA - TYS

DCATYS

Washington, D.C. Reagan-National

Mon 8/17

6:05 am-6:35 pm

2 stops12h 30m

Knoxville McGhee Tyson

Thu 8/20

2:05 pm-10:45 pm

2 stops8h 40m

$328

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3

Compare providers for flights from Reagan-National to Knoxville

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 Reagan-National to Knoxville in August.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust 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 Washington, D.C. Reagan-National Airport-Knoxville flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Reagan-National Airport-Knoxville flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Reagan-National Airport-Knoxville flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Reagan-National Airport-Knoxville 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 Washington, D.C. Reagan-National Airport-Knoxville 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 Reagan-National to Knoxville

Have a flexible travel schedule? Discover the best time to fly to Knoxville from Reagan-National 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 Washington, D.C. Reagan-National Airport to Knoxville

How far ahead should I book a flight from Washington, D.C. Reagan-National Airport to Knoxville?

To ensure you get the cheapest price possible for a flight from Washington, D.C. Reagan-National Airport to Knoxville, you should look to book at least 81 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Knoxville (average of $201). Flying from Washington, D.C. Reagan-National Airport to Knoxville in December is currently the most expensive (average of $483). 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 DCA to TYS?

Find hourly flight availability from Reagan-National to Knoxville. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 2, 2026.

It’s typically best to fly out from Washington, D.C. Reagan-National Airport to Knoxville in the morning. Doing so could potentially save you 18% on the flight price compared to flying in the afternoon, which is usually more expensive.

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

Use this chart to determine the cheapest time to fly round-trip from Reagan-National to Knoxville. Price data was last updated on July 25, 2026.

Travelers seeking maximum savings on their Washington, D.C. Reagan-National Airport to Knoxville flight should consider departing on Saturday evenings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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

Airfare is below average for this route at the moment.

Washington, D.C. Reagan-National Airport to Knoxville flights typically cost between $237 and $377 in August.
The cheapest round-trip price found within the last 5 days was $193 on American Airlines (Aug 27-Sep 3).

Reviews of airlines servicing Knoxville

Get insights into the airlines that provide service to Knoxville. 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 Knoxville. Reviews last updated August 2, 2026.
See what other customers who have flown with American Airlines from Washington, D.C. Reagan-National Airport to Knoxville have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.1
Good
11,846 reviews

Comfort

7.2

Crew

7.9

Overall

7.1

Food

6.4

Boarding

7.5

Entertainment

6.8

Reviews

1 / 20
6.0
Good

Kristin,Jul 2026

DCA - PHX

We got delayed because of filling up more gas then a storm hit after that so we sat in the plane for 1.5 hours more. It was hot while we waited.
American Airlines
7.1
Good
11,846 reviews
American Airlines
7.1
Good
11,846 reviews

Comfort

7.2

Crew

7.9

Overall

7.1

Food

6.4

Boarding

7.5

Entertainment

6.8

Reviews

1 / 20
6.0
Good

Kristin,Jul 2026

DCA - PHX

We got delayed because of filling up more gas then a storm hit after that so we sat in the plane for 1.5 hours more. It was hot while we waited.

Related info for your journey

Find useful and relevant information for your journey from Reagan-National to Knoxville. 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 into for flights to Knoxville from Washington, D.C. Reagan-National?

    If you book a flight to Knoxville from Washington, D.C. Reagan-National, you will be flying to McGhee Tyson, which is the city’s only airport. Knoxville McGhee Tyson (TYS) is located 11.3 mi from the center of Knoxville. There are 2 flights from Washington, D.C. Reagan-National to McGhee Tyson per day from 1 airline.

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

    Delta and Southwest can get you from Washington, D.C. Reagan-National Airport to Knoxville in just under 3h 36m. Your travel time can differ by up to 1h 49m. Airlines will cover a distance of 436 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    According to our current data, American Airlines ($189), offers the cheapest pricing from Washington, D.C. Reagan-National Airport to Knoxville. Users have found that American Airlines is 44% cheaper than the other options available to this destination.

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

    Before booking your flight to Knoxville from Washington, D.C. Reagan-National Airport, check out the most reliable airlines to get you to your destination on time: American Airlines (55%), PSA Airlines (55%), Alaska Airlines( 40%).

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

    Looking at all options, your cheapest flight can be booked for $208. While the most popular route (Washington, D.C. Reagan-National - Knoxville McGhee Tyson) can be booked for $213 on average, our data indicates $357 when flying from Washington, D.C. Reagan-National Airport to Knoxville.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Reagan-National to Knoxville 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 Washington, D.C. Reagan-National Airport to Knoxville?

    Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Knoxville (average of $201). Flying from Washington, D.C. Reagan-National Airport to Knoxville in December is currently the most expensive (average of $483). 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 Knoxville?

Book flights to Knoxville if you plan to visit one of these locations
Cherokee
Crossville
Morristown
Bryson City
Murphy
Alcoa

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Top airline flying from Reagan-National to Knoxville

Discover the top airline that operate flights from Reagan-National to Knoxville. 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 August 2, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$189Average$343FlexibilityNo cancel feeOn-time71%

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