What is the cheapest airline that flies from Knoxville McGhee Tyson to Washington, D.C.?

Allegiant Air, Delta, and Southwest are the most popular carriers operating from Knoxville McGhee Tyson to Washington, D.C.

What airlines fly to Washington, D.C.?

American Airlines, Delta and United Airlines are the top three most popular airlines that fly to Washington, D.C. from Knoxville according to our data. American Airlines is the first choice among our users, with 63% of people opting to fly with this airline when traveling to Washington, D.C.. Keep in mind that there are 6 different airlines that fly to Washington, D.C. on a routine basis, so you have a few additional options to choose from.

How many flights depart from Knoxville to Washington, D.C. on average per week?

The number of flights available between Knoxville and Washington, D.C. is 171 per week as of September 2026. The most frequent departure day is Mon, with 15% of weekly flights leaving on this day.

How many flights depart from Knoxville to Washington, D.C. on average per day?

As of September 2026, 24 flights take off from Knoxville and land in Washington, D.C. each day. The most common flight departure time for this route is 1:00PM, with 34% of daily flights taking off at noon.

When did momondo last update prices for flights from Knoxville McGhee Tyson Airport to Washington, D.C.?

Prices for flights from Knoxville McGhee Tyson Airport to Washington, D.C. refresh daily.

How many operators does momondo search for flights from Knoxville McGhee Tyson Airport to Washington, D.C.?

There are 4 operators available for flights from Knoxville McGhee Tyson Airport to Washington, D.C. as of September 2026.

How old do you have to be to fly from Knoxville McGhee Tyson Airport to Washington, D.C.?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Knoxville McGhee Tyson Airport to Washington, D.C..

What documentation or ID do you need to fly to Washington, D.C.?

The necessary travel and health documents for your Washington, D.C. trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$29 Cheap Flights from Knoxville to Washington, D.C. in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Knoxville to Washington, D.C.

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:45 am - 9:11 amTYS Knoxville McGhee Tyson-IAD Washington, D.C. Dulles Intl

1h 26mnonstop

6:08 pm - 5:14 pmIAD Washington, D.C. Dulles Intl-TYS Knoxville McGhee Tyson

23h 06m1 stop Fort Lauderdale

$150Multiple Airlines

Thu, Oct 22 - Mon, Oct 26

7:45 am - 9:13 amTYS Knoxville McGhee Tyson-IAD Washington, D.C. Dulles Intl

1h 28mnonstop

9:06 pm - 10:05 pmIAD Washington, D.C. Dulles Intl-TYS Knoxville McGhee Tyson

24h 59m2 stops Atlanta Hartsfield-Jackson Jacksonville

$154Multiple Airlines

Thu, Nov 12 - Sat, Nov 14

12:19 pm - 4:08 pmTYS Knoxville McGhee Tyson-IAD Washington, D.C. Dulles Intl

27h 49m1 stop Sarasota Bradenton Intl

8:16 am - 9:44 amIAD Washington, D.C. Dulles Intl-TYS Knoxville McGhee Tyson

1h 28mnonstop

$162Allegiant Air

Thu, Oct 29 - Sun, Nov 1

12:19 pm - 4:08 pmTYS Knoxville McGhee Tyson-IAD Washington, D.C. Dulles Intl

27h 49m1 stop Sarasota Bradenton Intl

8:16 am - 9:44 amIAD Washington, D.C. Dulles Intl-TYS Knoxville McGhee Tyson

1h 28mnonstop

$167Allegiant Air

Thu, Oct 29 - Sun, Nov 1

7:17 am - 9:00 amTYS Knoxville McGhee Tyson-DCA Washington, D.C. Reagan-National

1h 43mnonstop

7:49 pm - 9:40 pmDCA Washington, D.C. Reagan-National-TYS Knoxville McGhee Tyson

1h 51mnonstop

$207American Airlines

Thu, Oct 29 - Mon, Nov 2

7:00 am - 8:47 amTYS Knoxville McGhee Tyson-DCA Washington, D.C. Reagan-National

1h 47mnonstop

7:49 pm - 9:40 pmDCA Washington, D.C. Reagan-National-TYS Knoxville McGhee Tyson

1h 51mnonstop

$207American Airlines

Sat, Dec 5 - Tue, Dec 8

5:45 am - 7:28 amTYS Knoxville McGhee Tyson-IAD Washington, D.C. Dulles Intl

1h 43mnonstop

5:45 pm - 7:36 pmIAD Washington, D.C. Dulles Intl-TYS Knoxville McGhee Tyson

1h 51mnonstop

$207United Airlines

Wed, Nov 11 - Sat, Nov 14

7:25 pm - 9:09 pmTYS Knoxville McGhee Tyson-IAD Washington, D.C. Dulles Intl

1h 44mnonstop

9:40 am - 11:30 amIAD Washington, D.C. Dulles Intl-TYS Knoxville McGhee Tyson

1h 50mnonstop

$207United Airlines

Thu, Oct 22 - Mon, Oct 26

8:20 am - 9:50 amTYS Knoxville McGhee Tyson-BWI Baltimore/Washington

1h 30mnonstop

8:00 pm - 9:40 pmBWI Baltimore/Washington-TYS Knoxville McGhee Tyson

1h 40mnonstop

$207Southwest

Thu, Oct 29 - Mon, Nov 2

8:20 am - 9:50 amTYS Knoxville McGhee Tyson-BWI Baltimore/Washington

1h 30mnonstop

7:55 pm - 9:35 pmBWI Baltimore/Washington-TYS Knoxville McGhee Tyson

1h 40mnonstop

$207Southwest

Thu, Oct 22 - Mon, Oct 26

Cheap last minute flights

Enter your travel dates to find the best prices.

1:37 pm - 3:03 pmTYS Knoxville McGhee Tyson-IAD Washington, D.C. Dulles Intl

1h 26mnonstop

3:53 pm - 5:21 pmIAD Washington, D.C. Dulles Intl-TYS Knoxville McGhee Tyson

1h 28mnonstop

$135Allegiant Air

Thu, Oct 1 - Sun, Oct 4

1:37 pm - 3:03 pmTYS Knoxville McGhee Tyson-IAD Washington, D.C. Dulles Intl

1h 26mnonstop

3:53 pm - 5:21 pmIAD Washington, D.C. Dulles Intl-TYS Knoxville McGhee Tyson

1h 28mnonstop

$140Allegiant Air

Thu, Oct 1 - Sun, Oct 4

1:37 pm - 3:03 pmTYS Knoxville McGhee Tyson-IAD Washington, D.C. Dulles Intl

1h 26mnonstop

6:13 pm - 10:35 amIAD Washington, D.C. Dulles Intl-TYS Knoxville McGhee Tyson

16h 22m1 stop Fort Lauderdale

$261Multiple Airlines

Thu, Oct 1 - Sun, Oct 4

1:37 pm - 3:03 pmTYS Knoxville McGhee Tyson-IAD Washington, D.C. Dulles Intl

1h 26mnonstop

6:13 pm - 10:35 amIAD Washington, D.C. Dulles Intl-TYS Knoxville McGhee Tyson

16h 22m1 stop Fort Lauderdale

$262Multiple Airlines

Thu, Oct 1 - Sun, Oct 4

5:45 am - 7:25 amTYS Knoxville McGhee Tyson-IAD Washington, D.C. Dulles Intl

1h 40mnonstop

9:00 am - 10:37 amIAD Washington, D.C. Dulles Intl-TYS Knoxville McGhee Tyson

1h 37mnonstop

$344United Airlines

Wed, Sep 30 - Thu, Oct 22

11:08 am - 12:52 pmTYS Knoxville McGhee Tyson-DCA Washington, D.C. Reagan-National

1h 44mnonstop

7:59 pm - 9:42 pmDCA Washington, D.C. Reagan-National-TYS Knoxville McGhee Tyson

1h 43mnonstop

$389American Airlines

Thu, Oct 1 - Sun, Oct 4

6:16 pm - 8:06 pmTYS Knoxville McGhee Tyson-DCA Washington, D.C. Reagan-National

1h 50mnonstop

7:59 pm - 9:42 pmDCA Washington, D.C. Reagan-National-TYS Knoxville McGhee Tyson

1h 43mnonstop

$389American Airlines

Wed, Sep 30 - Sun, Oct 4

1:35 pm - 3:21 pmTYS Knoxville McGhee Tyson-IAD Washington, D.C. Dulles Intl

1h 46mnonstop

10:13 pm - 11:59 pmIAD Washington, D.C. Dulles Intl-TYS Knoxville McGhee Tyson

1h 46mnonstop

$389United Airlines

Wed, Sep 30 - Sun, Oct 4

8:20 am - 9:50 amTYS Knoxville McGhee Tyson-BWI Baltimore/Washington

1h 30mnonstop

7:55 pm - 9:35 pmBWI Baltimore/Washington-TYS Knoxville McGhee Tyson

1h 40mnonstop

$509Southwest

Thu, Oct 1 - Thu, Oct 8

8:20 am - 9:50 amTYS Knoxville McGhee Tyson-BWI Baltimore/Washington

1h 30mnonstop

6:30 pm - 10:45 pmBWI Baltimore/Washington-TYS Knoxville McGhee Tyson

4h 15m1 stop Nashville Intl

$519Southwest

Thu, Oct 1 - Sun, Oct 4

Cheap direct flights

Enter your travel dates to find the best prices.

8:20 am - 9:50 amTYS Knoxville McGhee Tyson-BWI Baltimore/Washington

1h 30mnonstop

8:00 pm - 9:40 pmBWI Baltimore/Washington-TYS Knoxville McGhee Tyson

1h 40mnonstop

$207Southwest

Thu, Oct 29 - Mon, Nov 2

8:20 am - 9:50 amTYS Knoxville McGhee Tyson-BWI Baltimore/Washington

1h 30mnonstop

7:55 pm - 9:35 pmBWI Baltimore/Washington-TYS Knoxville McGhee Tyson

1h 40mnonstop

$207Southwest

Thu, Oct 22 - Mon, Oct 26

7:17 am - 9:00 amTYS Knoxville McGhee Tyson-DCA Washington, D.C. Reagan-National

1h 43mnonstop

7:49 pm - 9:40 pmDCA Washington, D.C. Reagan-National-TYS Knoxville McGhee Tyson

1h 51mnonstop

$207American Airlines

Thu, Oct 29 - Mon, Nov 2

7:00 am - 8:47 amTYS Knoxville McGhee Tyson-DCA Washington, D.C. Reagan-National

1h 47mnonstop

7:49 pm - 9:40 pmDCA Washington, D.C. Reagan-National-TYS Knoxville McGhee Tyson

1h 51mnonstop

$207American Airlines

Sat, Dec 5 - Tue, Dec 8

5:45 am - 7:28 amTYS Knoxville McGhee Tyson-IAD Washington, D.C. Dulles Intl

1h 43mnonstop

5:45 pm - 7:36 pmIAD Washington, D.C. Dulles Intl-TYS Knoxville McGhee Tyson

1h 51mnonstop

$207United Airlines

Wed, Nov 11 - Sat, Nov 14

7:25 pm - 9:09 pmTYS Knoxville McGhee Tyson-IAD Washington, D.C. Dulles Intl

1h 44mnonstop

9:40 am - 11:30 amIAD Washington, D.C. Dulles Intl-TYS Knoxville McGhee Tyson

1h 50mnonstop

$207United Airlines

Thu, Oct 22 - Mon, Oct 26

8:20 am - 9:50 amTYS Knoxville McGhee Tyson-BWI Baltimore/Washington

1h 30mnonstop

6:30 pm - 8:10 pmBWI Baltimore/Washington-TYS Knoxville McGhee Tyson

1h 40mnonstop

$207Southwest

Thu, Oct 22 - Tue, Oct 27

7:35 pm - 9:15 pmTYS Knoxville McGhee Tyson-IAD Washington, D.C. Dulles Intl

1h 40mnonstop

10:12 pm - 11:59 pmIAD Washington, D.C. Dulles Intl-TYS Knoxville McGhee Tyson

1h 47mnonstop

$207United Airlines

Mon, Oct 26 - Mon, Nov 2

1:37 pm - 3:03 pmTYS Knoxville McGhee Tyson-IAD Washington, D.C. Dulles Intl

1h 26mnonstop

4:53 pm - 6:21 pmIAD Washington, D.C. Dulles Intl-TYS Knoxville McGhee Tyson

1h 28mnonstop

$211Allegiant Air

Sun, Oct 11 - Thu, Oct 15

1:37 pm - 3:03 pmTYS Knoxville McGhee Tyson-IAD Washington, D.C. Dulles Intl

1h 26mnonstop

4:53 pm - 6:21 pmIAD Washington, D.C. Dulles Intl-TYS Knoxville McGhee Tyson

1h 28mnonstop

$216Allegiant Air

Sun, Oct 11 - Thu, Oct 15

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Allegiant Air flights from Knoxville to Washington, D.C.

Our best Allegiant Air deals on Knoxville to Washington, D.C. flight tickets

Allegiant Air

Oct 1

TYS1:37 pmKnoxville McGhee Tyson

1h 26m

IAD3:03 pmWashington, D.C. Dulles Intl

Oct 4

IAD3:53 pmWashington, D.C. Dulles Intl

1h 28m

TYS5:21 pmKnoxville McGhee Tyson

$112

Allegiant Air

Oct 1

TYS1:37 pmKnoxville McGhee Tyson

1h 26m

IAD3:03 pmWashington, D.C. Dulles Intl

Oct 4

IAD3:53 pmWashington, D.C. Dulles Intl

1h 28m

TYS5:21 pmKnoxville McGhee Tyson

$135

Allegiant Air

Oct 29

TYS12:19 pmKnoxville McGhee Tyson

27h 49m

1 stop

IAD4:08 pmWashington, D.C. Dulles Intl

Nov 1

IAD8:16 amWashington, D.C. Dulles Intl

1h 28m

TYS9:44 amKnoxville McGhee Tyson

$162

United Airlines flights from Knoxville to Washington, D.C.

Our best United Airlines deals on Knoxville to Washington, D.C. flight tickets

United Airlines

Oct 24

TYS5:45 amKnoxville McGhee Tyson

1h 40m

IAD7:25 amWashington, D.C. Dulles Intl

Oct 31

IAD9:40 amWashington, D.C. Dulles Intl

1h 50m

TYS11:30 amKnoxville McGhee Tyson

$207

United Airlines

Oct 9

TYS1:35 pmKnoxville McGhee Tyson

1h 46m

IAD3:21 pmWashington, D.C. Dulles Intl

Oct 12

IAD12:55 pmWashington, D.C. Dulles Intl

1h 47m

TYS2:42 pmKnoxville McGhee Tyson

$329

United Airlines

Sep 30

TYS5:45 amKnoxville McGhee Tyson

1h 40m

IAD7:25 amWashington, D.C. Dulles Intl

Oct 22

IAD9:00 amWashington, D.C. Dulles Intl

1h 37m

TYS10:37 amKnoxville McGhee Tyson

$344

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

KnoxvilleWashington, D.C.

TYS Knoxville McGhee Tyson - IAD Washington, D.C. Dulles Intl

TYSIAD

Knoxville McGhee Tyson

Thu 10/22

7:45 am-9:11 am

Nonstop1h 26m

Washington, D.C. Dulles Intl

Mon 10/26

6:08 pm-5:14 pm

1 stop23h 06m

$150

KnoxvilleWashington, D.C.

TYS Knoxville McGhee Tyson - IAD Washington, D.C. Dulles Intl

TYSIAD

Knoxville McGhee Tyson

Thu 11/12

7:45 am-9:13 am

Nonstop1h 28m

Washington, D.C. Dulles Intl

Sat 11/14

9:06 pm-10:05 pm

2 stops24h 59m

$154

KnoxvilleWashington, D.C.

TYS Knoxville McGhee Tyson - IAD Washington, D.C. Dulles Intl

TYSIAD

Knoxville McGhee Tyson

Thu 10/29

12:19 pm-4:08 pm

1 stop27h 49m

Washington, D.C. Dulles Intl

Sun 11/1

8:16 am-9:44 am

Nonstop1h 28m

$162

KnoxvilleWashington, D.C.

TYS Knoxville McGhee Tyson - IAD Washington, D.C. Dulles Intl

TYSIAD

Knoxville McGhee Tyson

Thu 10/29

12:19 pm-4:08 pm

1 stop27h 49m

Washington, D.C. Dulles Intl

Sun 11/1

8:16 am-9:44 am

Nonstop1h 28m

$167

KnoxvilleWashington, D.C.

TYS Knoxville McGhee Tyson - DCA Washington, D.C. Reagan-National

TYSDCA

Knoxville McGhee Tyson

Thu 10/29

7:17 am-9:00 am

Nonstop1h 43m

Washington, D.C. Reagan-National

Mon 11/2

7:49 pm-9:40 pm

Nonstop1h 51m

$207

KnoxvilleWashington, D.C.

TYS Knoxville McGhee Tyson - DCA Washington, D.C. Reagan-National

TYSDCA

Knoxville McGhee Tyson

Sat 12/5

7:00 am-8:47 am

Nonstop1h 47m

Washington, D.C. Reagan-National

Tue 12/8

7:49 pm-9:40 pm

Nonstop1h 51m

$207

KnoxvilleWashington, D.C.

TYS Knoxville McGhee Tyson - IAD Washington, D.C. Dulles Intl

TYSIAD

Knoxville McGhee Tyson

Wed 11/11

5:45 am-7:28 am

Nonstop1h 43m

Washington, D.C. Dulles Intl

Sat 11/14

5:45 pm-7:36 pm

Nonstop1h 51m

$207

KnoxvilleWashington, D.C.

TYS Knoxville McGhee Tyson - IAD Washington, D.C. Dulles Intl

TYSIAD

Knoxville McGhee Tyson

Thu 10/22

7:25 pm-9:09 pm

Nonstop1h 44m

Washington, D.C. Dulles Intl

Mon 10/26

9:40 am-11:30 am

Nonstop1h 50m

$207

Quickest round-trip

KnoxvilleBaltimore

TYS Knoxville McGhee Tyson - BWI Baltimore/Washington

TYSBWI

Knoxville McGhee Tyson

Thu 10/29

8:20 am-9:50 am

Nonstop1h 30m

Baltimore/Washington

Mon 11/2

8:00 pm-9:40 pm

Nonstop1h 40m

$207

KnoxvilleBaltimore

TYS Knoxville McGhee Tyson - BWI Baltimore/Washington

TYSBWI

Knoxville McGhee Tyson

Thu 10/22

8:20 am-9:50 am

Nonstop1h 30m

Baltimore/Washington

Mon 10/26

7:55 pm-9:35 pm

Nonstop1h 40m

$207

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Knoxville to Washington, D.C.

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the typical price of a round-trip flight between Knoxville and Washington, D.C.?

Prices are currently low for flights on this route.

Typical prices usually range from $202 to $472.
The lowest price recently found on this route was $135.

What is the cheapest month to fly to Washington, D.C.?

The month of February is, on average, the cheapest month to fly to Washington, D.C. from Knoxville, with most prices found around $215. If you’re not able to fly to Washington, D.C. in February, then January is your next best option. Flight prices from Knoxville to Washington, D.C. during January average around $218.

What is the cheapest day to depart on your flight to Washington, D.C.?

On average, the least expensive day to fly to Washington, D.C. from Knoxville is on a Friday. momondo users have found tickets for Friday departures for as low as $393. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Knoxville to Washington, D.C. for around $690.

What is the cheapest time of day to depart on your flight to Washington, D.C.?

In the afternoon is the cheapest time of day to fly from Knoxville to Washington, D.C. when you can find flight prices for as low as $306. Flying to Washington, D.C. in the afternoon is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the evening because they tend to be around $950. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Knoxville McGhee Tyson to Washington, D.C. flight route?

Fly from Knoxville McGhee Tyson to Washington, D.C. Dulles Intl for the best Knoxville McGhee Tyson - Washington, D.C. flight prices

What cabin class options are available on Knoxville to Washington, D.C. flights?

There are 4 cabin classes available to choose from on Knoxville to Washington, D.C. flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Knoxville to Washington, D.C. flights?

No. A direct flight is the cheapest option for a flight between Knoxville to Washington, D.C..

How have Knoxville to Washington, D.C. flight prices changed over time?

As of September 2026, prices for Knoxville to Washington, D.C. flights are approximately 12% cheaper when compared to flights at the same time last year.

When to book flights from Knoxville to Washington, D.C.

Are you open to changing your travel dates? Check out the ideal times to fly from Knoxville to Washington, D.C. according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Knoxville to Washington, D.C. (TYS to WAS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Knoxville to Washington, D.C.

Best Price Found	$29
Fastest flight time	1h 26m
Direct flights	Every day
Airports in Washington, D.C.	2 airports

The best one-way flight to Washington, D.C. from Knoxville in the past 72 hours is $29. The best round-trip flight deal from Knoxville to Washington, D.C. found on momondo in the last 72 hours is $150.

The fastest flight from Knoxville to Washington, D.C. takes 1h 26m

Direct flights go from Knoxville to Washington, D.C. every day.

There are 2 airports in Washington, D.C.. From Knoxville there are direct flights to Washington, D.C. Reagan-National (DCA), Baltimore/Washington (BWI), Washington, D.C. Dulles Intl (IAD).

Search flight deals

Frequently asked questions about flying from Knoxville to Washington, D.C.

How far is Knoxville McGhee Tyson to Washington, D.C. by plane?
Washington, D.C. is 428.6 mi away from Knoxville McGhee Tyson. A reasonable flight in good conditions will take 1h 26m.
When did momondo last update prices for flights from Knoxville McGhee Tyson Airport to Washington, D.C.?
Prices for flights from Knoxville McGhee Tyson Airport to Washington, D.C. refresh daily.
How many operators does momondo search for flights from Knoxville McGhee Tyson Airport to Washington, D.C.?
There are 4 operators available for flights from Knoxville McGhee Tyson Airport to Washington, D.C. as of September 2026.
How old do you have to be to fly from Knoxville McGhee Tyson Airport to Washington, D.C.?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Knoxville McGhee Tyson Airport to Washington, D.C..
What documentation or ID do you need to fly to Washington, D.C.?
The necessary travel and health documents for your Washington, D.C. trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Knoxville to Washington, D.C.?
momondo data reveals that the most frequently booked plane model on the route from Knoxville to Washington, D.C. is Embraer ERJ-135 / ERJ-140 / ERJ-145, representing 22.32% of all bookings. The subsequent popular models are Embraer 175 (Enhanced Winglets) at 22.10%, Canadair (Bombardier) Regional Jet 700 at 19.05%, and Canadair (Bombardier) Regional Jet 900 at 14.88%.
What is the most popular airline from Knoxville to Washington, D.C.?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Knoxville to Washington, D.C. is American Airlines (42% of total bookings). The next most popular airlines are Allegiant Air (26%), United Airlines (26%), and Southwest (6%).

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

Compare and see reviews for airlines that fly from Knoxville to Washington, D.C. with momondo

Airline	Rating	Free Cancellation	Price
Allegiant Air	PriceFrom $46	Free Cancellation	Rating 7.3 678 reviews	Search Allegiant Air flights
American Airlines	PriceFrom $186	Free Cancellation	Rating 7.0 12,098 reviews	Search American Airlines flights
Southwest	PriceFrom $193	Free Cancellation	Rating 8.0 4,202 reviews	Search Southwest flights
United Airlines	PriceFrom $194	Free Cancellation	Rating 7.4 10,247 reviews	Search United Airlines flights

United Airlines Flights From Knoxville to Washington, D.C.
United Airlines flies from Knoxville to Washington, D.C. around 27 times per week, with 10,246 momondo users rating the airline 7.4/10. The cheapest United Airlines deal from Knoxville to Washington, D.C. in the last 72 hours was $194 (round-trip), much lower than the average airfare cost of $326 for United Airlines flights on this route.
American Airlines Flights From Knoxville to Washington, D.C.
The best American Airlines deal for Knoxville to Washington, D.C. flight tickets found on momondo in the last 72 hours was $186, round-trip. It should be noted that an average American Airlines flight deal for this route in this time was higher, at $327 round-trip. American Airlines operates 20 flights out of Knoxville into Washington, D.C. in an average week, so prices vary by time and availability. 12,096 American Airlines reviews by users on momondo have scored the airline at 7.0/10.

Alexandria

National Harbor

Arlington

Gettysburg

Fredericksburg

Waldorf

Laurel

Woodbridge

Gaithersburg

Linthicum Heights

Rockville

Silver Spring

Towson

Fairfax

Springfield

Glen Burnie

Edgewood

Colonial Beach

College Park

Bethesda

Why use momondo?

Why should I use momondo to find a flight deal from Knoxville to Washington, D.C.?

It is quick and easy to find Knoxville to Washington, D.C. flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Washington, D.C. that suits you.

Can I find flights from Knoxville to Washington, D.C. with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Knoxville to Washington, D.C. flights to just show those with flexible booking policies.

How can momondo help me find flights from Knoxville to Washington, D.C.?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Washington, D.C. from Knoxville.

I’m not ready to book a flight from Knoxville to Washington, D.C. right now. Can momondo alert me if prices change?

Price alerts on flights to Washington, D.C. from Knoxville are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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Feeling lucky

Fly into one of these airports located in Washington, D.C.

Washington, D.C. Reagan-National Airport

Washington, D.C. Dulles Intl Airport

Cheap flights from Knoxville to Washington, D.C. from $29

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Knoxville to Washington, D.C. departing on 10/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Cheap one-way flights

Cheap last minute flights

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Allegiant Air flights from Knoxville to Washington, D.C.

Our best Allegiant Air deals on Knoxville to Washington, D.C. flight tickets

United Airlines flights from Knoxville to Washington, D.C.

Our best United Airlines deals on Knoxville to Washington, D.C. flight tickets

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Fly into one of these airports located in Washington, D.C.

Airports listed have a maximum distance of 22.4 mi from Washington, D.C.

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List of cabin classes available on flights landing in Washington, D.C.. Availability may vary depending on flight origin and airline.

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