What are the cheapest airlines to fly from District of Columbia to Knoxville one-way?

The cheapest airlines for a one-way flight from District of Columbia to Knoxville are Allegiant Air ($40), American Airlines ($90), and Delta ($100).

In terms of precipitation, rainfall in Knoxville ranges from 2.7 - 4.8 inches per month. March is typically the wettest month, when rainfall can reach 4.8 in. October is typically the driest time to visit Knoxville when rainfall is around 2.7 in.

If weather is an important factor for your trip to Knoxville, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

What are the most popular airlines that fly from District of Columbia to Knoxville?

American Airlines, Delta and United Airlines are the most popular airlines when flying from District of Columbia to Knoxville.

How far in advance should I book a flight from District of Columbia to Knoxville?

To save on the cost of your flight from District of Columbia to Knoxville, book at least 53 days before your planned departure. Booking around this time can save you about 144% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $261 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $429.

What is the cheapest month to fly from District of Columbia to Knoxville?

Due to multiple factors, expect to potentially pay more when booking in October. For low rates, June can be a great choice for travel to Knoxville. Flights to Knoxville from District of Columbia in June are about $307 on average during June, but can be found for as low as $79.

What airport do you fly into for flights to Knoxville from District of Columbia?

Most people fly into Knoxville McGhee Tyson (TYS) if they book a flight to Knoxville from District of Columbia. McGhee Tyson is conveniently located just 11.3 mi from Knoxville’s city center.

How can I find direct flights from District of Columbia to Knoxville?

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

Can I find deals for business class flights from District of Columbia to Knoxville?

Yes. Cheapflights offers flight deals from District of Columbia 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.

$40+ Flights from District of Columbia to Knoxville

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Cheap flight deals from District of Columbia to Knoxville

Round-trip from	$112 (FlightHub)
One-way from	$40 (Gotogate)
Popular in	October
Cheapest in	June
Average price	$289
Good round-trip deal	$90 or less
Good one-way deal	$64 or less

From District of Columbia to Knoxville McGhee Tyson

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One-way flight from District of Columbia to Knoxville McGhee Tyson

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Highest demand for flights based on searches. 12% potential increase in price ($43 potential increase over avg. RT price).

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Cheapest flight prices on average. 3% potential price decrease ($9 potential savings vs. average RT price).

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Average for round-trip flights in July 2025

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Price to beat on a round-trip flight from District of Columbia to Knoxville McGhee Tyson.

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Price to beat on a one-way flight from District of Columbia to Knoxville McGhee Tyson.

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Find flight deals from District of Columbia to Knoxville

Cheapest flights from District of Columbia to Knoxville
Explore the most affordable flight options available from District of Columbia to Knoxville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.

Mon 8/43:13 pmIAD - TYS

Nonstop1h 34mAllegiant Air

Fri 8/812:45 pmTYS - IAD

Nonstop1h 38mAllegiant Air

Deal found 7/30

$112

Sat 8/308:45 amIAD - TYS

Nonstop1h 43mUnited Airlines

Sat 9/139:55 amTYS - IAD

Nonstop1h 43mUnited Airlines

Deal found 7/31

$184

Sat 8/308:19 amDCA - TYS

Nonstop1h 47mAmerican Airlines

Sat 9/136:25 amTYS - DCA

Nonstop1h 49mAmerican Airlines

Deal found 7/31

$184

Fri 8/158:30 amIAD - TYS

1 stop12h 40mMultiple Airlines

Mon 8/1812:45 pmTYS - IAD

Nonstop1h 38mMultiple Airlines

Deal found 7/29

$187

Sat 8/306:00 amIAD - TYS

1 stop4h 27mDelta

Sat 9/135:45 amTYS - IAD

1 stop5h 25mDelta

Deal found 7/31

$204

Sat 8/306:00 amDCA - TYS

1 stop4h 27mDelta

Sat 9/1310:50 amTYS - DCA

1 stop5h 23mDelta

Deal found 7/31

$204

Wed 8/612:00 pmDCA - TYS

1 stop5h 05mUnited Airlines

Tue 8/127:00 amTYS - DCA

1 stop7h 13mUnited Airlines

Deal found 7/29

$244

Thu 8/147:00 amDCA - TYS

1 stop9h 29mFrontier

Sun 8/175:25 pmTYS - DCA

1 stop18h 39mFrontier

Deal found 7/29

$245

Best flights from District of Columbia to Knoxville
Discover carefully curated flight deals from District of Columbia to Knoxville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 31, 2025.

Mon 8/43:13 pmIAD - TYS

Nonstop1h 34mAllegiant Air

Fri 8/812:45 pmTYS - IAD

Nonstop1h 38mAllegiant Air

Deal found 7/30

$112

Sat 8/308:45 amIAD - TYS

Nonstop1h 43mUnited Airlines

Sat 9/139:55 amTYS - IAD

Nonstop1h 43mUnited Airlines

Deal found 7/31

$184

Sat 8/308:19 amDCA - TYS

Nonstop1h 47mAmerican Airlines

Sat 9/136:25 amTYS - DCA

Nonstop1h 49mAmerican Airlines

Deal found 7/31

$184

Fri 8/158:30 amIAD - TYS

1 stop12h 40mMultiple Airlines

Mon 8/1812:45 pmTYS - IAD

Nonstop1h 38mMultiple Airlines

Deal found 7/29

$187

Sat 8/306:00 amIAD - TYS

1 stop4h 27mDelta

Sat 9/135:45 amTYS - IAD

1 stop5h 25mDelta

Deal found 7/31

$204

Thu 8/147:00 amDCA - TYS

1 stop9h 29mFrontier

Sun 8/175:25 pmTYS - DCA

1 stop18h 39mFrontier

Deal found 7/29

$245

Sat 8/306:00 amDCA - TYS

1 stop4h 27mDelta

Sat 9/1310:50 amTYS - DCA

1 stop5h 23mDelta

Deal found 7/31

$204

Wed 8/612:00 pmDCA - TYS

1 stop5h 05mUnited Airlines

Tue 8/127:00 amTYS - DCA

1 stop7h 13mUnited Airlines

Deal found 7/29

$244

Last-minute flights from District of Columbia to Knoxville
Discover last-minute flight deals from District of Columbia to Knoxville. Data last updated July 31, 2025 and is based on user searches.

Mon 8/43:13 pmIAD - TYS

Nonstop1h 34mAllegiant Air

Fri 8/812:45 pmTYS - IAD

Nonstop1h 38mAllegiant Air

Deal found 7/30

$112

Tue 8/57:59 amDCA - TYS

1 stop5h 52mDelta

Mon 8/117:16 pmTYS - DCA

1 stop4h 30mDelta

Deal found 7/30

$324

Wed 8/68:15 pmDCA - TYS

Nonstop1h 46mAmerican Airlines

Tue 8/126:13 amTYS - DCA

Nonstop1h 46mAmerican Airlines

Deal found 7/29

$224

Wed 8/66:00 amIAD - TYS

1 stop3h 50mDelta

Wed 8/275:45 amTYS - IAD

1 stop5h 38mDelta

Deal found 7/29

$239

Wed 8/612:00 pmDCA - TYS

1 stop5h 05mUnited Airlines

Tue 8/127:00 amTYS - DCA

1 stop7h 13mUnited Airlines

Deal found 7/29

$244

Thu 8/711:58 amIAD - TYS

2 stops20h 04mMultiple Airlines

Mon 8/1112:45 pmTYS - IAD

Nonstop1h 38mMultiple Airlines

Deal found 7/30

$221

Thu 8/76:34 amIAD - TYS

1 stop5h 43mAmerican Airlines

Tue 8/1212:03 pmTYS - IAD

1 stop3h 16mAmerican Airlines

Deal found 7/29

$269

Thu 8/77:00 amDCA - TYS

1 stop9h 29mFrontier

Sun 8/105:25 pmTYS - DCA

1 stop18h 39mFrontier

Deal found 7/30

$359

Fri 8/83:13 pmIAD - TYS

Nonstop1h 34mAllegiant Air

Mon 8/116:55 amTYS - IAD

1 stop9h 01mAllegiant Air

Deal found 7/29

$188

Sat 8/97:10 pmIAD - TYS

Nonstop1h 47mUnited Airlines

Sat 8/169:55 amTYS - IAD

Nonstop1h 40mUnited Airlines

Deal found 7/29

$224

Thu 8/147:00 amDCA - TYS

1 stop9h 29mFrontier

Sun 8/175:25 pmTYS - DCA

1 stop18h 39mFrontier

Deal found 7/29

$245

Fri 8/158:30 amIAD - TYS

1 stop12h 40mMultiple Airlines

Mon 8/1812:45 pmTYS - IAD

Nonstop1h 38mMultiple Airlines

Deal found 7/31

$187

One-way flights from District of Columbia to Knoxville
Search for one-way flight options from District of Columbia to Knoxville. Find affordable one-way fares based on user searches. Data last updated July 31, 2025.

Mon 8/183:13 pmIAD - TYS

Nonstop1h 34mAllegiant Air

Deal found 7/30

$40

Sat 8/308:19 amDCA - TYS

Nonstop1h 47mAmerican Airlines

Deal found 7/31

$90

Sat 8/306:00 amIAD - TYS

1 stop4h 27mDelta

Deal found 7/31

$100

Sat 8/306:00 amDCA - TYS

1 stop4h 27mDelta

Deal found 7/31

$100

Sat 8/308:45 amIAD - TYS

Nonstop1h 43mUnited Airlines

Deal found 7/31

$113

Sat 9/276:00 pmDCA - TYS

1 stop22h 18mFrontier

Deal found 7/29

$117

Sat 8/239:14 amIAD - TYS

1 stop5h 15mAmerican Airlines

Deal found 7/31

$126

Sat 8/238:12 pmIAD - TYS

2 stops24h 10mMultiple Airlines

Deal found 7/31

$150

Sat 8/232:59 pmDCA - TYS

2 stops19h 14mUnited Airlines

Deal found 7/31

$274

Cheapflights Fare Finder

Use the filters below to find and compare flights from District of Columbia to Knoxville that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Knoxville

IAD - TYS

IADTYS

Washington, D.C. Dulles Intl

Mon 8/4

3:13 pm-4:47 pm

Nonstop1h 34m

Knoxville McGhee Tyson

Fri 8/8

12:45 pm-2:23 pm

Nonstop1h 38m

$112

Washington, D.C.Knoxville

IAD - TYS

IADTYS

Washington, D.C. Dulles Intl

Sat 8/30

8:45 am-10:28 am

Nonstop1h 43m

Knoxville McGhee Tyson

Sat 9/13

9:55 am-11:38 am

Nonstop1h 43m

$184

Washington, D.C.Knoxville

DCA - TYS

DCATYS

Washington, D.C. Reagan-National

Sat 8/30

8:19 am-10:06 am

Nonstop1h 47m

Knoxville McGhee Tyson

Sat 9/13

6:25 am-8:14 am

Nonstop1h 49m

$184

Washington, D.C.Knoxville

IAD - TYS

IADTYS

Washington, D.C. Dulles Intl

Fri 8/15

8:30 am-9:10 pm

1 stop12h 40m

Knoxville McGhee Tyson

Mon 8/18

12:45 pm-2:23 pm

Nonstop1h 38m

$187

Washington, D.C.Knoxville

IAD - TYS

IADTYS

Washington, D.C. Dulles Intl

Sat 8/30

6:00 am-10:27 am

1 stop4h 27m

Knoxville McGhee Tyson

Sat 9/13

5:45 am-11:10 am

1 stop5h 25m

$204

Washington, D.C.Knoxville

DCA - TYS

DCATYS

Washington, D.C. Reagan-National

Sat 8/30

6:00 am-10:27 am

1 stop4h 27m

Knoxville McGhee Tyson

Sat 9/13

10:50 am-4:13 pm

1 stop5h 23m

$204

Washington, D.C.Knoxville

DCA - TYS

DCATYS

Washington, D.C. Reagan-National

Wed 8/6

12:00 pm-5:05 pm

1 stop5h 05m

Knoxville McGhee Tyson

Tue 8/12

7:00 am-2:13 pm

1 stop7h 13m

$244

Washington, D.C.Knoxville

DCA - TYS

DCATYS

Washington, D.C. Reagan-National

Thu 8/14

7:00 am-4:29 pm

1 stop9h 29m

Knoxville McGhee Tyson

Sun 8/17

5:25 pm-12:04 pm

1 stop18h 39m

$245

Washington, D.C.Knoxville

IAD - TYS

IADTYS

Washington, D.C. Dulles Intl

Mon 8/18

3:13 pm-4:47 pm

Nonstop1h 34m

$40

Washington, D.C.Knoxville

DCA - TYS

DCATYS

Washington, D.C. Reagan-National

Sat 8/30

8:19 am-10:06 am

Nonstop1h 47m

$90

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Showing 1-10 of 17 results

Best time to book a flight from District of Columbia to Knoxville

Have a flexible travel schedule? Discover the best time to fly to Knoxville from District of Columbia 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 District of Columbia to Knoxville

What is the cheapest month to book a flight from District of Columbia to Knoxville?

Currently, January is the cheapest month in which you can book a flight from District of Columbia to Knoxville (average of $294). Flying from District of Columbia 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 DC to TYS?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from District of Columbia to Knoxville as you normally would.

Reviews of airlines servicing Knoxville

Peruse reviews from past customers who have flown with Delta, United Airlines, and American Airlines from District of Columbia to Knoxville to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,981 reviews

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

7,981 reviews

Delta

8.0

Very good

7,981 reviews

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

8,900 reviews

Delta

8.0

Very good

7,981 reviews

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

7,981 reviews

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

7,981 reviews

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!

Frontier

5.9

Fair

3,239 reviews

Delta

8.0

Very good

7,981 reviews

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

What airport do you fly into for flights to Knoxville from District of Columbia?
Most people fly into Knoxville McGhee Tyson (TYS) if they book a flight to Knoxville from District of Columbia. McGhee Tyson is conveniently located just 11.3 mi from Knoxville’s city center.
What are the cheapest airlines to fly from District of Columbia to Knoxville one-way?
The cheapest airlines for a one-way flight from District of Columbia to Knoxville are Allegiant Air ($40), American Airlines ($90), and Delta ($100).
Can I find deals for flights from District of Columbia to Knoxville that include hotel bookings?
Yes. In addition to deals on District of Columbia to Knoxville flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from District of Columbia to Knoxville?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from District of Columbia to Knoxville.
Can I find deals for business class flights from District of Columbia to Knoxville?
Yes. Cheapflights offers flight deals from District of Columbia 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 District of Columbia to Knoxville?
Currently, January is the cheapest month in which you can book a flight from District of Columbia to Knoxville (average of $294). Flying from District of Columbia 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

Morristown

Cherokee

Corbin

Alcoa

Oak Ridge

Murphy

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Top 4 airlines flying from District of Columbia to Knoxville

Airline	Cheapest	Average	Flexibility	On-time
Allegiant Air	Cheapest$38	Average$83	FlexibilityNo cancel fee	On-time88%
United Airlines	Cheapest$189	Average$372	FlexibilityNo cancel fee	On-time69%
Delta	Cheapest$198	Average$326	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$203	Average$335	FlexibilityNo cancel fee	On-time71%

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$40+ Cheap flights from District of Columbia 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 8/18. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from District of Columbia to Knoxville with Cheapflights

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2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from District of Columbia to Knoxville

Keep the following information in mind while searching for District of Columbia to Knoxville flight deals. Data was last updated July 31, 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from District of Columbia to Knoxville

Cheapest flights from District of Columbia to KnoxvilleExplore the most affordable flight options available from District of Columbia to Knoxville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.

Explore the most affordable flight options available from District of Columbia to Knoxville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from District of Columbia to Knoxville that are best for you.

Best time to book a flight from District of Columbia to Knoxville

Have a flexible travel schedule? Discover the best time to fly to Knoxville from District of Columbia with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from District of Columbia to Knoxville

What is the cheapest month to book a flight from District of Columbia to Knoxville?

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

Find hourly flight availability from District of Columbia 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 July 31, 2025.

Reviews of airlines servicing Knoxville

Peruse reviews from past customers who have flown with Delta, United Airlines, and American Airlines from District of Columbia to Knoxville to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from District of Columbia 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 District of Columbia?

What are the cheapest airlines to fly from District of Columbia to Knoxville one-way?

Can I find deals for flights from District of Columbia to Knoxville that include hotel bookings?

How can I find direct flights from District of Columbia to Knoxville?

Can I find deals for business class flights from District of Columbia to Knoxville?

What is the cheapest month to book a flight from District of Columbia to Knoxville?

Traveling to a place near Knoxville?

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Alternative routes for District of Columbia to Knoxville

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Top 4 airlines flying from District of Columbia to Knoxville

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Cheapest flights from District of Columbia to Knoxville
Explore the most affordable flight options available from District of Columbia to Knoxville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.