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Washington, D.C.

$43+ Cheap flights from Knoxville (TYS) to Washington, D.C. (WAS)

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 10/31. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — WAS
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheapflights Tip: The best prices from Knoxville McGhee Tyson to Washington, D.C. are usually found in July or May, booked 75 days in advance, depart on a Friday or Thursday and return on a Saturday

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

Discover tips and strategies to find the most affordable flight options for your journey from Knoxville (TYS) to Washington, D.C. (WAS). 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 September 11, 2025.

Round-trip from

$114
(Trip.com)

One-way from

$43
(FlightHub)

Popular in

January

Cheapest in

July

Average price

$296

Good round-trip deal

$249 or less

Good one-way deal

$125 or less
From Knoxville McGhee Tyson to Washington, D.C. (WAS)
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One-way flight from Knoxville McGhee Tyson to Washington, D.C. (WAS)
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Highest demand for flights based on searches. 6% potential increase in price ($19 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Knoxville McGhee Tyson to Washington, D.C. (WAS).
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Price to beat on a one-way flight from Knoxville McGhee Tyson to Washington, D.C. (WAS).
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Find flight deals from Knoxville to Washington, D.C.

Cheapest flights from Knoxville to Washington, D.C.
Explore the most affordable flight options available from Knoxville to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Trip.com deal was found by Cheapflights users on 9/9. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/137:02 pmTYS - IAD
Nonstop1h 44mAllegiant Air
Mon 10/209:36 pmIAD - TYS
Nonstop1h 40mAllegiant Air
Deal found 9/9$114
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 10/177:02 pmTYS - IAD
Nonstop1h 44mAllegiant Air
Sun 10/196:13 pmIAD - TYS
1 stop25h 57mAllegiant Air
Deal found 9/9$154
This American Airlines deal was found by Cheapflights users on 9/10. 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 10/77:43 pmTYS - BWI
1 stop3h 51mAmerican Airlines
Tue 10/146:10 amBWI - TYS
1 stop3h 42mAmerican Airlines
Deal found 9/10$159
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 10/307:17 pmTYS - IAD
2 stops21h 17mMultiple Airlines
Mon 11/31:34 pmIAD - TYS
Nonstop1h 40mMultiple Airlines
Deal found 9/10$170
This Delta deal was found by Cheapflights users on 9/11. 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 9/305:45 amTYS - IAD
1 stop5h 55mDelta
Tue 9/305:55 pmIAD - TYS
1 stop5h 49mDelta
Deal found 9/11$177
This Delta deal was found by Cheapflights users on 9/10. 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 10/77:11 amTYS - DCA
1 stop5h 34mDelta
Tue 10/146:00 amDCA - TYS
1 stop5h 04mDelta
Deal found 9/10$177
This Delta deal was found by Cheapflights users on 9/9. 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 11/183:51 pmTYS - BWI
1 stop4h 53mDelta
Wed 11/198:04 amBWI - TYS
1 stop6h 42mDelta
Deal found 9/9$177
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 12/154:47 pmTYS - IAD
2 stops29h 32mMultiple Airlines
Thu 12/188:16 pmIAD - TYS
Nonstop1h 40mMultiple Airlines
Deal found 9/9$179
This American Airlines deal was found by Cheapflights users on 9/11. 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 11/136:30 amTYS - BWI
1 stop6h 33mAmerican Airlines
Tue 11/1811:09 amBWI - TYS
1 stop5h 44mAmerican Airlines
Deal found 9/11$179
This Kiwi.com deal was found by Cheapflights users on 9/8. 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 10/109:06 pmTYS - IAD
2 stops26h 23mMultiple Airlines
Mon 10/209:36 pmIAD - TYS
Nonstop1h 40mMultiple Airlines
Deal found 9/8$180
This United Airlines deal was found by Cheapflights users on 9/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/252:00 pmTYS - IAD
Nonstop1h 44mUnited Airlines
Tue 12/3010:10 pmIAD - TYS
Nonstop1h 49mUnited Airlines
Deal found 9/8$184
This United Airlines deal was found by Cheapflights users on 9/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/309:50 amTYS - IAD
Nonstop1h 43mUnited Airlines
Sun 11/210:15 pmIAD - TYS
Nonstop1h 44mUnited Airlines
Deal found 9/10$189

Cheapflights Fare Finder

 
Customize your flight search to find flights from Knoxville to Washington, D.C. 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 September 11, 2025.
Use the filters below to find and compare flights from Knoxville to Washington, D.C. that are best for you.

Fly from

Knoxville

Fly to

Washington, D.C.

Route

Depart

Return

Price

KnoxvilleBaltimore

TYS - BWI

TYSBWI

Knoxville McGhee Tyson

Tue 10/7

7:43 pm-11:34 pm

1 stop3h 51m

Baltimore/Washington

Tue 10/14

6:10 am-9:52 am

1 stop3h 42m

$159

KnoxvilleWashington, D.C.

TYS - IAD

TYSIAD

Knoxville McGhee Tyson

Tue 9/30

5:45 am-11:40 am

1 stop5h 55m

Washington, D.C. Dulles Intl

Tue 9/30

5:55 pm-11:44 pm

1 stop5h 49m

$177

KnoxvilleWashington, D.C.

TYS - DCA

TYSDCA

Knoxville McGhee Tyson

Tue 10/7

7:11 am-12:45 pm

1 stop5h 34m

Washington, D.C. Reagan-National

Tue 10/14

6:00 am-11:04 am

1 stop5h 04m

$177

KnoxvilleBaltimore

TYS - BWI

TYSBWI

Knoxville McGhee Tyson

Tue 11/18

3:51 pm-8:44 pm

1 stop4h 53m

Baltimore/Washington

Wed 11/19

8:04 am-2:46 pm

1 stop6h 42m

$177

KnoxvilleBaltimore

TYS - BWI

TYSBWI

Knoxville McGhee Tyson

Tue 11/18

5:25 am-9:22 am

1 stop3h 57m

Baltimore/Washington

Tue 11/18

1:51 pm-7:00 pm

1 stop5h 09m

$177

KnoxvilleWashington, D.C.

TYS - IAD

TYSIAD

Knoxville McGhee Tyson

Thu 11/6

5:45 am-7:28 am

Nonstop1h 43m

Washington, D.C. Dulles Intl

Sun 11/9

9:00 am-10:48 am

Nonstop1h 48m

$189

KnoxvilleWashington, D.C.

TYS - IAD

TYSIAD

Knoxville McGhee Tyson

Thu 10/30

9:50 am-11:33 am

Nonstop1h 43m

Washington, D.C. Dulles Intl

Mon 11/3

10:15 pm-11:59 pm

Nonstop1h 44m

$189

KnoxvilleWashington, D.C.

TYS - DCA

TYSDCA

Knoxville McGhee Tyson

Fri 10/24

6:03 am-7:45 am

Nonstop1h 42m

Washington, D.C. Reagan-National

Mon 10/27

8:19 am-10:13 am

Nonstop1h 54m

$189

KnoxvilleWashington, D.C.

TYS - DCA

TYSDCA

Knoxville McGhee Tyson

Thu 10/9

6:03 am-7:45 am

Nonstop1h 42m

Washington, D.C. Reagan-National

Mon 10/13

8:24 pm-10:09 pm

Nonstop1h 45m

$189

KnoxvilleWashington, D.C.

TYS - DCA

TYSDCA

Knoxville McGhee Tyson

Thu 11/6

6:06 am-7:49 am

Nonstop1h 43m

Washington, D.C. Reagan-National

Sun 11/9

9:06 am-10:54 am

Nonstop1h 48m

$189

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 59 results
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Best time to book a flight from Knoxville to Washington, D.C.

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

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

Use this chart to determine the optimal time to book a round-trip flight from Knoxville to Washington, D.C.. Price data was last updated on August 29, 2025.

Booking 75 days in advance of your planned departure date is, on average, the best time to get cheap flights from Knoxville to Washington, D.C.. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, August is the cheapest month in which you can book a flight from Knoxville to Washington, D.C. (average of $292). Flying from Knoxville to Washington, D.C. in April is currently the most expensive (average of $337). 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 WAS?

Find hourly flight availability from Knoxville to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

It’s typically best to fly out from Knoxville to Washington, D.C. in the afternoon. Doing so could potentially save you 68% on the flight price compared to flying at noon, which is usually more expensive.

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

Use this chart to determine the cheapest time to fly round-trip from Knoxville to Washington, D.C.. Price data was last updated on December 16, 2024.

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

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

Explore weekly flight availability from Knoxville to Washington, D.C.. 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 September 11, 2025.

The most flights from TYS to WAS are scheduled on a Thursday (23 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (18 on average).

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

What’s the top layover airport for flights from Knoxville to Washington, D.C.?

Share of 1-stop round-trip flights from Knoxville to Washington, D.C. chosen by Cheapflights users in the past 12 months, using the same layover each way.

Chicago (ORD) – chosen by Cheapflights users on 50% of 1-stop itineraries from Knoxville to Washington, D.C. on Cheapflights.

What’s the cheapest layover airport for flights from Knoxville to Washington, D.C.?

Average round-trip fare for 1-stop flights from Knoxville to Washington, D.C., chosen by Cheapflights users in the past 12 months, with the same layover each way.

Denver (DEN) is the most affordable 1-stop option, with an average round-trip price of $200.

What’s the fastest layover option from Knoxville to Washington, D.C.?

Shortest average travel time for 1-stop one-way flights from Knoxville to Washington, D.C., based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Chicago (ORD) have the shortest average one-way travel time for 1-stop routes: 5h 11m.

Which airport typically offers the quickest layover for flights from Knoxville to Washington, D.C.?

Average layover duration for 1-stop one-way flights from Knoxville to Washington, D.C., chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Chicago (ORD) offer the fastest connection on this route, with an average layover time of 1h 42m.

Reviews of airlines servicing Washington, D.C.

Get insights into the airlines that provide service to Washington, D.C.. 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 Washington, D.C.. Reviews last updated September 11, 2025.
See what other customers who have flown with Delta, United Airlines, and American Airlines from Knoxville to Washington, D.C. have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,960 reviews

Crew

8.5

Boarding

8.2

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

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!
Delta
8.0
Very good
7,960 reviews
Delta
8.0
Very good
7,960 reviews

Crew

8.5

Boarding

8.2

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

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!
United Airlines
7.4
Good
8,937 reviews
Delta
8.0
Very good
7,960 reviews

Crew

8.5

Boarding

8.2

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

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!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,960 reviews

Crew

8.5

Boarding

8.2

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

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!
Allegiant Air
7.2
Good
702 reviews
Delta
8.0
Very good
7,960 reviews

Crew

8.5

Boarding

8.2

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

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 Knoxville to Washington, D.C.. 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.?

    If you book a flight to Washington, D.C. 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 are 20 flights from McGhee Tyson to Washington, D.C. per day from 4 different airlines.

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

    For as low as $189, American Airlines can have you in Washington, D.C. from Knoxville in 1h 43m. The distance from Knoxville to Washington, D.C. is about 419 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Our cheapest airline available from Knoxville to Washington, D.C. is Allegiant Air. Our recent data shows that you can find tickets from as low as $43 on this airline. Additional options worth looking into are American Airlines and United Airlines, starting at $189 and $215 round-trip. Allegiant Air is priced at 84% lower than the current average price of a flight leaving 3 months from now.

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

    One-way options have recently been found by users for as low as $43 on Allegiant Air. Other airlines that offer cheap prices include United Airlines from $70 and American Airlines from $70 one-way.

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

    Most travelers choose Knoxville McGhee Tyson - Washington, D.C. Dulles Intl, Knoxville McGhee Tyson - Washington, D.C. Reagan-National or Knoxville McGhee Tyson - Baltimore/Washington when deciding on the best route from Knoxville to Washington, D.C..

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

    The top 3 most reliable airlines when flying from Knoxville to Washington, D.C. are Ethiopian Air (95%), Allegiant Air (89%) and Copa Airlines (83%).

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

    While on average a flight from Knoxville to Washington, D.C. is generally $1,573, our data shows the cheapest flight currently is $57. When looking at the most popular route, (Knoxville McGhee Tyson - Washington, D.C. Dulles Intl), you can expect to pay $88 for that flight.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Knoxville to Washington, D.C. (average of $292). Flying from Knoxville to Washington, D.C. in April is currently the most expensive (average of $337). 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.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Woodbridge
Alexandria
Arlington
Tysons
Silver Spring
Springfield
Gaithersburg
Fredericksburg
Linthicum Heights
Fairfax
Falls Church
Owings Mills
Manassas
Rockville
Hanover
Oxon Hill
Laurel
Towson
Dundalk
National Harbor

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

Discover the top 4 airlines that operate flights from Knoxville to Washington, D.C.. 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$43Average$90FlexibilityNo cancel feeOn-time88%
American AirlinesCheapest$189Average$307FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$215Average$335FlexibilityNo cancel feeOn-time69%
DeltaCheapest$228Average$302FlexibilityNo cancel feeOn-timeN/A

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