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$30+ Cheap flights from Washington, D.C. (WAS) 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 10/22. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — TYS
Sep 1 — Sep 81
Tue 9/1
Tue 9/8
1 adult, Economy
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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”

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Cheapflights Tip: The best prices from Washington, D.C. to Knoxville McGhee Tyson are usually found in February or July, booked 86 days in advance, depart on a Thursday or Friday and return on a Friday

Cheap flight deals from Washington, D.C. to Knoxville

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

This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/183:53 pm
IAD
-
TYS
Nonstop1h 28m
Allegiant Air
Thu 10/227:45 am
TYS
-
IAD
Nonstop1h 26m
Allegiant Air
Deal found 7/31$72
This Kiwi.com deal was found by Cheapflights users on 8/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/13:53 pm
IAD
-
TYS
Nonstop1h 28m
Allegiant Air
Sun 10/41:37 pm
TYS
-
IAD
Nonstop1h 26m
Allegiant Air
Deal found 8/1$94
This eDestinos deal was found by Cheapflights users on 7/27. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/13:53 pm
IAD
-
TYS
Nonstop1h 28m
Allegiant Air
Sun 10/111:37 pm
TYS
-
IAD
Nonstop1h 26m
Allegiant Air
Deal found 7/27$109
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/313:16 pm
IAD
-
TYS
Nonstop1h 26m
Allegiant Air
Mon 8/312:53 pm
TYS
-
IAD
Nonstop1h 33m
Allegiant Air
Deal found 7/28$133
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/43:53 pm
IAD
-
TYS
Nonstop1h 28m
Allegiant Air
Sun 10/111:37 pm
TYS
-
IAD
Nonstop1h 26m
Allegiant Air
Deal found 7/29$140
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/196:01 pm
IAD
-
TYS
Nonstop1h 32m
Allegiant Air
Sun 11/226:13 pm
TYS
-
IAD
Nonstop1h 29m
Allegiant Air
Deal found 7/29$149
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/183:53 pm
IAD
-
TYS
Nonstop1h 28m
Multiple Airlines
Thu 10/222:01 pm
TYS
-
IAD
2 stops10h 27m
Multiple Airlines
Deal found 7/31$151
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2210:01 am
IAD
-
TYS
Nonstop1h 28m
Multiple Airlines
Sun 10/252:01 pm
TYS
-
IAD
2 stops27h 35m
Multiple Airlines
Deal found 7/30$152
This Kiwi.com deal was found by Cheapflights users on 8/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/211:12 am
IAD
-
TYS
1 stop11h 46m
Multiple Airlines
Sun 10/41:37 pm
TYS
-
IAD
Nonstop1h 26m
Multiple Airlines
Deal found 8/1$153
This Kiwi.com deal was found by Cheapflights users on 7/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/33:16 pm
IAD
-
TYS
Nonstop1h 26m
Multiple Airlines
Mon 8/1712:50 pm
TYS
-
IAD
2 stops28h 24m
Multiple Airlines
Deal found 7/27$155
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/226:24 am
BWI
-
TYS
1 stop13h 38m
Multiple Airlines
Thu 8/271:21 pm
TYS
-
BWI
1 stop10h 38m
Multiple Airlines
Deal found 7/31$186
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.
Thu 8/276:15 pm
BWI
-
TYS
Nonstop1h 40m
Southwest
Thu 9/38:25 am
TYS
-
BWI
Nonstop1h 45m
Southwest
Deal found 7/30$193

Find flight deals from Washington, D.C. to Knoxville

Discover tips and strategies to find the most affordable flight options for your journey from Washington, D.C. (WAS) 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

$72
(Kiwi.com)

One-way from

$30
(Kiwi.com)

Popular in

September

Cheapest in

February

Average price

$237

Good round-trip deal

$76 or less

Good one-way deal

$54 or less
Provider with most accurate pricing for Washington, D.C. (WAS)-Knoxville McGhee Tyson flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Knoxville McGhee Tyson flights.
Search Deals
From Washington, D.C. (WAS) to Knoxville McGhee Tyson
Search Deals
One-way flight from Washington, D.C. (WAS) to Knoxville McGhee Tyson
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($34 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($10 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. (WAS) to Knoxville McGhee Tyson.
Search Deals
Price to beat on a one-way flight from Washington, D.C. (WAS) to Knoxville McGhee Tyson.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington, D.C. 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. to Knoxville that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BaltimoreKnoxville

BWI - TYS

BWITYS

Baltimore/Washington

Wed 9/16

6:10 pm-7:55 pm

Nonstop1h 45m

Knoxville McGhee Tyson

Thu 9/17

8:25 am-10:10 am

Nonstop1h 45m

$193

BaltimoreKnoxville

BWI - TYS

BWITYS

Baltimore/Washington

Mon 8/24

6:15 pm-7:55 pm

Nonstop1h 40m

Knoxville McGhee Tyson

Wed 8/26

7:00 am-11:35 am

1 stop4h 35m

$203

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

BaltimoreKnoxville

BWI - TYS

BWITYS

Baltimore/Washington

Mon 9/21

6:15 pm-8:00 pm

Nonstop1h 45m

Knoxville McGhee Tyson

Fri 9/25

8:25 am-10:10 am

Nonstop1h 45m

$215

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

IAD - TYS

IADTYS

Washington, D.C. Dulles Intl

Fri 8/21

6:00 am-11:11 am

1 stop5h 11m

Knoxville McGhee Tyson

Mon 8/24

7:41 pm-12:34 am

1 stop4h 53m

$235

Washington, D.C.Knoxville

IAD - TYS

IADTYS

Washington, D.C. Dulles Intl

Fri 8/28

7:26 pm-11:52 pm

1 stop4h 26m

Knoxville McGhee Tyson

Tue 9/1

6:12 pm-12:34 am

1 stop6h 22m

$235

BaltimoreKnoxville

BWI - TYS

BWITYS

Baltimore/Washington

Thu 10/8

6:00 am-10:54 am

1 stop4h 54m

Knoxville McGhee Tyson

Thu 10/8

7:24 pm-12:51 am

1 stop5h 27m

$235

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

Mon 8/24

4:38 pm-10:44 pm

1 stop6h 06m

$235

BaltimoreKnoxville

BWI - TYS

BWITYS

Baltimore/Washington

Sun 8/30

6:35 am-2:00 pm

1 stop7h 25m

Knoxville McGhee Tyson

Thu 9/3

5:45 pm-10:40 pm

1 stop4h 55m

$240

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 60 resultsSorted by cheapest first
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Compare providers for flights from Washington, D.C. 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 Washington, D.C. 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.-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.-Knoxville flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C.-Knoxville flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C.-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.-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 Washington, D.C. to Knoxville

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

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

Currently, April is the cheapest month in which you can book a flight from Washington, D.C. to Knoxville (average of $213). Flying from Washington, D.C. to Knoxville in September is currently the most expensive (average of $359). 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 WAS to TYS?

Find hourly flight availability from Washington, D.C. 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 optimal to fly from Washington, D.C. to Knoxville at noon. By choosing this option you can save up to 25% on the cost of your flight, compared to a flight in the morning.

Weekly flight availability from Washington, D.C. to Knoxville

Explore weekly flight availability from Washington, D.C. to Knoxville. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated August 2, 2026.

The most flights from WAS to TYS are scheduled on a Friday (21 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (15 on average).

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

Airfare is below average for this route at the moment.
Washington, D.C. to Knoxville flights typically cost between $108 and $351 in October.
The cheapest round-trip price found within the last 5 days was $72 on Allegiant Air (Oct 18-Oct 22).

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

The best time to book flights from Washington, D.C. to Knoxville is 84 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest day to fly from Washington, D.C. to Knoxville?

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

Travelers seeking maximum savings on their Washington, D.C. to Knoxville flight should consider departing on Wednesday evenings when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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.
Read through reviews of airlines operating flights from Washington, D.C. to Knoxville, such as Southwest,United Airlines, andAllegiant Air. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,229 reviews

Crew

8.6

Overall

8.0

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Food

7.0

Reviews

1 / 20
8.0
Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.
Southwest
8.0
Very good
4,229 reviews
Southwest
8.0
Very good
4,229 reviews

Crew

8.6

Overall

8.0

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Food

7.0

Reviews

1 / 20
8.0
Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.
United Airlines
7.4
Good
10,062 reviews
Southwest
8.0
Very good
4,229 reviews

Crew

8.6

Overall

8.0

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Food

7.0

Reviews

1 / 20
8.0
Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.
Allegiant Air
7.3
Good
678 reviews
Southwest
8.0
Very good
4,229 reviews

Crew

8.6

Overall

8.0

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Food

7.0

Reviews

1 / 20
8.0
Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.
American Airlines
7.1
Good
11,845 reviews
Southwest
8.0
Very good
4,229 reviews

Crew

8.6

Overall

8.0

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Food

7.0

Reviews

1 / 20
8.0
Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. 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.?

    Knoxville McGhee Tyson (TYS), located 11.3 mi from the city center, is the airport you fly into when you book flights from Washington, D.C. to Knoxville. 5 airlines have flights to McGhee Tyson from Washington, D.C. on a regular basis. Booking flights from Washington, D.C. to Knoxville McGhee Tyson should not be difficult; the airport handles an average of 17 inbound flights from Washington, D.C. per day.

  • How long is the flight from Washington, D.C. to Knoxville?

    Southwest, Delta, and United Airlines can get you from Washington, D.C. to Knoxville in just under 1h 42m. Your travel time can differ by up to 1h 54m. Washington, D.C. and Knoxville are separated by a distance of 419 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Washington, D.C. to Knoxville round-trip?

    Our cheapest airline available from Washington, D.C. to Knoxville is Allegiant Air. Our recent data shows that you can find tickets from as low as $54 on this airline. Additional options worth looking into are American Airlines and United Airlines, starting at $189 and $203 round-trip. You may be able to fly from Washington, D.C. to Knoxville for 78% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Washington, D.C. to Knoxville one-way?

    The cheapest airline one-way is Allegiant Air, with whom users have recently found tickets for as low as $38. However, be on the lookout for offers from United Airlines and American Airlines, as they are both options that can get you from Washington, D.C. to Knoxville for a low price.

  • What are the most popular routes from Washington, D.C. to Knoxville?

    When deciding which route to take from Washington, D.C. to Knoxville consider Baltimore/Washington - Knoxville McGhee Tyson, Washington, D.C. Dulles Intl - Knoxville McGhee Tyson or Washington, D.C. Reagan-National - Knoxville McGhee Tyson as they are the most popular.

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

    Consider Mesa Airlines (95%), Allegiant Air (92%) or United Airlines (80%) when booking your flight. These represent the most reliable airlines when flying from Washington, D.C. to Knoxville.

  • What are the cheapest flights from Washington, D.C. to Knoxville?

    While on average a flight from Washington, D.C. to Knoxville is generally $159, our data shows the cheapest flight currently is $38. When looking at the most popular route, (Baltimore/Washington - Knoxville McGhee Tyson), you can expect to pay $186 for that flight.

  • Can I find deals for flights from Washington, D.C. to Knoxville that include hotel bookings?

    Yes. In addition to deals on Washington, D.C. to Knoxville flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington, D.C. to Knoxville?

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

  • Can I find deals for business class flights from Washington, D.C. to Knoxville?

    Yes. Cheapflights offers flight deals from Washington, D.C. 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. to Knoxville?

    Currently, April is the cheapest month in which you can book a flight from Washington, D.C. to Knoxville (average of $213). Flying from Washington, D.C. to Knoxville in September is currently the most expensive (average of $359). 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 5 airlines flying from Washington, D.C. to Knoxville

Discover the top 5 airlines that operate flights from Washington, D.C. 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
Allegiant AirCheapest$54Average$97FlexibilityNo cancel feeOn-time88%
American AirlinesCheapest$189Average$335FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$203Average$355FlexibilityNo cancel feeOn-time69%
DeltaCheapest$208Average$282FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$210Average$287FlexibilityNo cancel feeOn-time63%

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