Knoxville

$50+ 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 11/20. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — TYS
Aug 24 — Aug 311
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Washington, D.C. to Knoxville 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.

Cheapflights Tip: The best prices from Washington, D.C. to Knoxville McGhee Tyson are usually found in July or August, booked 87 days in advance, depart on a Saturday or Wednesday and return on a Thursday

Cheap 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 19, 2025.

Round-trip from

$92
(Mytrip)

One-way from

$50
(Booking.com)

Popular in

October

Cheapest in

July

Average price

$259

Good round-trip deal

$89 or less

Good one-way deal

$45 or less
From Washington, D.C. (WAS) to Knoxville McGhee Tyson
One-way flight from Washington, D.C. (WAS) to Knoxville McGhee Tyson
Highest demand for flights based on searches. 10% potential increase in price ($36 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
Average for round-trip flights in August 2025
Price to beat on a round-trip flight from Washington, D.C. (WAS) to Knoxville McGhee Tyson.
Price to beat on a one-way flight from Washington, D.C. (WAS) to Knoxville McGhee Tyson.

Find 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 19, 2025.

This Mytrip deal was found by Cheapflights users on 8/18. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/179:36 pmIAD - TYS
Nonstop1h 40mAllegiant Air
Mon 10/207:02 pmTYS - IAD
Nonstop1h 44mAllegiant Air
Deal found 8/18$92
This Booking.com deal was found by Cheapflights users on 8/17. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/313:53 pmIAD - TYS
Nonstop1h 40mAllegiant Air
Mon 11/311:00 amTYS - IAD
Nonstop1h 44mAllegiant Air
Deal found 8/17$104
This Booking.com deal was found by Cheapflights users on 8/17. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/208:23 pmIAD - TYS
Nonstop1h 40mAllegiant Air
Sun 11/235:49 pmTYS - IAD
Nonstop1h 44mAllegiant Air
Deal found 8/17$116
This Gotogate deal was found by Cheapflights users on 8/18. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/223:13 pmIAD - TYS
Nonstop1h 34mAllegiant Air
Mon 8/2512:45 pmTYS - IAD
Nonstop1h 38mAllegiant Air
Deal found 8/18$141
This Kiwi.com deal was found by Cheapflights users on 8/17. 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 10/57:14 pmIAD - TYS
1 stop14h 42mMultiple Airlines
Fri 10/107:02 pmTYS - IAD
Nonstop1h 44mMultiple Airlines
Deal found 8/17$149
This Mytrip deal was found by Cheapflights users on 8/18. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/252:58 pmIAD - TYS
Nonstop1h 40mAllegiant Air
Sat 11/2912:35 pmTYS - IAD
Nonstop1h 44mAllegiant Air
Deal found 8/18$155
This Mytrip deal was found by Cheapflights users on 8/18. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/109:36 pmIAD - TYS
Nonstop1h 40mAllegiant Air
Mon 10/137:02 pmTYS - IAD
Nonstop1h 44mAllegiant Air
Deal found 8/18$161
This Mytrip deal was found by Cheapflights users on 8/17. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/58:13 pmIAD - TYS
2 stops14h 45mAllegiant Air
Fri 10/107:02 pmTYS - IAD
Nonstop1h 44mAllegiant Air
Deal found 8/17$177
This American Airlines deal was found by Cheapflights users on 8/17. 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 8/303:00 pmDCA - TYS
Nonstop1h 51mAmerican Airlines
Sun 8/316:49 amTYS - DCA
Nonstop1h 47mAmerican Airlines
Deal found 8/17$179
This Kiwi.com deal was found by Cheapflights users on 8/18. 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 10/169:13 pmIAD - TYS
1 stop21h 30mAllegiant Air
Mon 10/207:02 pmTYS - IAD
Nonstop1h 44mAllegiant Air
Deal found 8/18$186
This American Airlines deal was found by Cheapflights users on 8/17. 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 9/242:59 pmDCA - TYS
Nonstop1h 50mAmerican Airlines
Sat 9/276:25 amTYS - DCA
Nonstop1h 49mAmerican Airlines
Deal found 8/17$189
This Kiwi.com deal was found by Cheapflights users on 8/17. 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 10/179:36 pmIAD - TYS
Nonstop1h 40mAllegiant Air
Sun 10/192:55 pmTYS - IAD
1 stop18h 24mAllegiant Air
Deal found 8/17$193

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 19, 2025.
Use the filters below to find and compare flights from Washington, D.C. to Knoxville that are best for you.

Fly from

Washington, D.C.

Fly to

Knoxville

Route

Depart

Return

Price

Washington, D.C.Knoxville

IAD - TYS

IADTYS

Washington, D.C. Dulles Intl

Fri 10/17

9:36 pm-11:16 pm

Nonstop1h 40m

Knoxville McGhee Tyson

Mon 10/20

7:02 pm-8:46 pm

Nonstop1h 44m

$92

Washington, D.C.Knoxville

IAD - TYS

IADTYS

Washington, D.C. Dulles Intl

Fri 10/31

3:53 pm-5:33 pm

Nonstop1h 40m

Knoxville McGhee Tyson

Mon 11/3

11:00 am-12:44 pm

Nonstop1h 44m

$104

Washington, D.C.Knoxville

IAD - TYS

IADTYS

Washington, D.C. Dulles Intl

Thu 11/20

8:23 pm-10:03 pm

Nonstop1h 40m

Knoxville McGhee Tyson

Sun 11/23

5:49 pm-7:33 pm

Nonstop1h 44m

$116

Washington, D.C.Knoxville

IAD - TYS

IADTYS

Washington, D.C. Dulles Intl

Sun 10/5

7:14 pm-9:56 am

1 stop14h 42m

Knoxville McGhee Tyson

Fri 10/10

7:02 pm-8:46 pm

Nonstop1h 44m

$149

Washington, D.C.Knoxville

IAD - TYS

IADTYS

Washington, D.C. Dulles Intl

Tue 11/25

2:58 pm-4:38 pm

Nonstop1h 40m

Knoxville McGhee Tyson

Sat 11/29

3:50 pm-3:00 pm

1 stop23h 10m

$150

Washington, D.C.Knoxville

IAD - TYS

IADTYS

Washington, D.C. Dulles Intl

Fri 10/17

9:28 pm-7:50 am

1 stop10h 22m

Knoxville McGhee Tyson

Mon 10/20

7:02 pm-8:46 pm

Nonstop1h 44m

$161

Washington, D.C.Knoxville

IAD - TYS

IADTYS

Washington, D.C. Dulles Intl

Fri 10/10

9:36 pm-11:16 pm

Nonstop1h 40m

Knoxville McGhee Tyson

Mon 10/13

7:02 pm-8:46 pm

Nonstop1h 44m

$161

Washington, D.C.Knoxville

DCA - TYS

DCATYS

Washington, D.C. Reagan-National

Sat 8/30

3:00 pm-4:51 pm

Nonstop1h 51m

Knoxville McGhee Tyson

Sun 8/31

6:49 am-8:36 am

Nonstop1h 47m

$179

Washington, D.C.Knoxville

DCA - TYS

DCATYS

Washington, D.C. Reagan-National

Wed 9/24

2:59 pm-4:49 pm

Nonstop1h 50m

Knoxville McGhee Tyson

Sat 9/27

6:25 am-8:14 am

Nonstop1h 49m

$189

Washington, D.C.Knoxville

DCA - TYS

DCATYS

Washington, D.C. Reagan-National

Tue 9/16

2:59 pm-4:49 pm

Nonstop1h 50m

Knoxville McGhee Tyson

Tue 9/23

5:20 pm-6:59 pm

Nonstop1h 39m

$189

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/19

Showing 1-10 of 54 results
1
2
3
...
6

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

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

Use this chart to determine the optimal time to book a round-trip flight from Washington, D.C. to Knoxville. Price data was last updated on August 8, 2025.

The best time to book flights from Washington, D.C. to Knoxville is 87 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 month to book a flight from Washington, D.C. to Knoxville?

Currently, January is the cheapest month in which you can book a flight from Washington, D.C. to Knoxville (average of $294). Flying from Washington, D.C. to Knoxville in March is currently the most expensive (average of $376). 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 19, 2025.

It’s optimal to fly from Washington, D.C. to Knoxville in the afternoon. By choosing this option you can save up to 27% on the cost of your flight, compared to a flight at noon.

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 December 16, 2024.

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

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 19, 2025.

The most flights from WAS to TYS are scheduled on a Monday (21 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (4 on average).

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

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 19, 2025.
Read through reviews of airlines operating flights from Washington, D.C. to Knoxville, such as Delta, United Airlines, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very good

Crew

8.5

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
8.0
Very good
8.0
Very good

Crew

8.5

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
8.0
Very good

Crew

8.5

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
8.0
Very good

Crew

8.5

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
8.0
Very good

Crew

8.5

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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. 4 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 13 inbound flights from Washington, D.C. per day.

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

    Allegiant Air and American Airlines can get you from Washington, D.C. to Knoxville in just under 1h 40m. Your travel time will be generally consistent. Washington, D.C. and Knoxville are separated by a distance of 419 mi. Generally, flights for this route are nonstop.

  • 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 $42 on this airline. Additional options worth looking into are American Airlines and United Airlines, starting at $209 and $236 round-trip. You may be able to fly from Washington, D.C. to Knoxville for 85% less than the average price by searching for these airlines.

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

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

    Consider Allegiant Air (71%), Avianca (67%) or Copa Airlines (67%) 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 $115, our data shows the cheapest flight currently is $40. When looking at the most popular route, (Washington, D.C. Dulles Intl - Knoxville McGhee Tyson), you can expect to pay $75 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, January is the cheapest month in which you can book a flight from Washington, D.C. to Knoxville (average of $294). Flying from Washington, D.C. to Knoxville in March is currently the most expensive (average of $376). 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
Morristown
Cherokee
Corbin
Alcoa
Oak Ridge
Murphy

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 4 airlines flying from Washington, D.C. to Knoxville

Discover the top 4 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 19, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$42Average$94FlexibilityNo cancel feeOn-time88%
United AirlinesCheapest$189Average$371FlexibilityNo cancel feeOn-time69%
DeltaCheapest$198Average$308FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$209Average$331FlexibilityNo 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.