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Cheap flights from Knoxville to Washington, D.C. from $90

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

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

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
7:22 pm - 11:46 pmTYS  Knoxville McGhee Tyson-DCA Washington, D.C. Reagan-National
4h 24m1 stop Atlanta Hartsfield-Jackson
Delta Logo
10:15 am - 1:55 pmDCA  Washington, D.C. Reagan-National-TYS Knoxville McGhee Tyson
3h 40m1 stop Atlanta Hartsfield-Jackson
$190Delta
Mon, Nov 9 - Sat, Nov 14
American Airlines Logo
7:17 am - 9:00 amTYS  Knoxville McGhee Tyson-DCA Washington, D.C. Reagan-National
1h 43mnonstop
American Airlines Logo
8:25 am - 10:25 amDCA  Washington, D.C. Reagan-National-TYS Knoxville McGhee Tyson
2h 00mnonstop
$192American Airlines
Fri, Oct 16 - Mon, Oct 19
American Airlines Logo
7:02 am - 9:00 amTYS  Knoxville McGhee Tyson-DCA Washington, D.C. Reagan-National
1h 58mnonstop
American Airlines Logo
7:52 pm - 9:45 pmDCA  Washington, D.C. Reagan-National-TYS Knoxville McGhee Tyson
1h 53mnonstop
$192American Airlines
Fri, Jan 8 - Mon, Jan 11
Southwest Logo
5:15 pm - 10:00 pmTYS  Knoxville McGhee Tyson-DCA Washington, D.C. Reagan-National
4h 45m1 stop Nashville Intl
Southwest Logo
6:10 am - 12:20 pmDCA  Washington, D.C. Reagan-National-TYS Knoxville McGhee Tyson
6h 10m2 stops Chicago Midway Nashville Intl
$195Southwest
Mon, Nov 16 - Wed, Nov 18
Southwest Logo
7:25 pm - 10:55 pmTYS  Knoxville McGhee Tyson-DCA Washington, D.C. Reagan-National
3h 30m1 stop Nashville Intl
Southwest Logo
7:25 am - 5:45 pmDCA  Washington, D.C. Reagan-National-TYS Knoxville McGhee Tyson
10h 20m2 stops Atlanta Hartsfield-Jackson Nashville Intl
$201Southwest
Mon, Nov 9 - Sat, Nov 14
Delta Logo
6:00 am - 10:54 amTYS  Knoxville McGhee Tyson-DCA Washington, D.C. Reagan-National
4h 54m1 stop Atlanta Hartsfield-Jackson
Delta Logo
7:30 pm - 11:46 pmDCA  Washington, D.C. Reagan-National-TYS Knoxville McGhee Tyson
4h 16m1 stop Atlanta Hartsfield-Jackson
$212Delta
Fri, Jan 8 - Mon, Jan 11
American Airlines Logo
6:48 am - 8:35 amTYS  Knoxville McGhee Tyson-DCA Washington, D.C. Reagan-National
1h 47mnonstop
American Airlines Logo
3:46 pm - 5:40 pmDCA  Washington, D.C. Reagan-National-TYS Knoxville McGhee Tyson
1h 54mnonstop
$213American Airlines
Wed, Nov 11 - Sun, Nov 15
Southwest Logo
7:25 pm - 11:05 pmTYS  Knoxville McGhee Tyson-DCA Washington, D.C. Reagan-National
3h 40m1 stop Nashville Intl
Southwest Logo
7:15 pm - 10:45 pmDCA  Washington, D.C. Reagan-National-TYS Knoxville McGhee Tyson
3h 30m1 stop Nashville Intl
$223Southwest
Fri, Oct 23 - Mon, Oct 26
American Airlines Logo
7:13 pm - 11:59 pmTYS  Knoxville McGhee Tyson-DCA Washington, D.C. Reagan-National
4h 46m1 stop Charlotte Douglas
American Airlines Logo
8:25 am - 10:25 amDCA  Washington, D.C. Reagan-National-TYS Knoxville McGhee Tyson
2h 00mnonstop
$223American Airlines
Tue, Oct 13 - Tue, Oct 20
American Airlines Logo
4:49 pm - 10:20 pmTYS  Knoxville McGhee Tyson-DCA Washington, D.C. Reagan-National
5h 31m1 stop Charlotte Douglas
American Airlines Logo
8:25 am - 10:25 amDCA  Washington, D.C. Reagan-National-TYS Knoxville McGhee Tyson
2h 00mnonstop
$223American Airlines
Sat, Oct 10 - Tue, Oct 13

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Southwest flights from Knoxville to Washington, D.C. Reagan-National Airport

Our best Southwest deals on Knoxville to Washington, D.C. Reagan-National Airport flight tickets
Southwest
Nov 16
TYS5:15 pmKnoxville McGhee Tyson
4h 45m
1 stop
DCA10:00 pmWashington, D.C. Reagan-National
Nov 18
DCA6:10 amWashington, D.C. Reagan-National
6h 10m
2 stops
TYS12:20 pmKnoxville McGhee Tyson
$195
Southwest
Nov 9
TYS7:25 pmKnoxville McGhee Tyson
3h 30m
1 stop
DCA10:55 pmWashington, D.C. Reagan-National
Nov 14
DCA7:25 amWashington, D.C. Reagan-National
10h 20m
2 stops
TYS5:45 pmKnoxville McGhee Tyson
$201
Southwest
Nov 16
TYS7:05 amKnoxville McGhee Tyson
8h 35m
2 stops
DCA3:40 pmWashington, D.C. Reagan-National
Nov 18
DCA6:10 amWashington, D.C. Reagan-National
6h 10m
2 stops
TYS12:20 pmKnoxville McGhee Tyson
$229

Delta flights from Knoxville to Washington, D.C. Reagan-National Airport

Our best Delta deals on Knoxville to Washington, D.C. Reagan-National Airport flight tickets
Delta
Nov 9
TYS7:22 pmKnoxville McGhee Tyson
4h 24m
1 stop
DCA11:46 pmWashington, D.C. Reagan-National
Nov 14
DCA10:15 amWashington, D.C. Reagan-National
3h 40m
1 stop
TYS1:55 pmKnoxville McGhee Tyson
$190
Delta
Jan 8
TYS6:00 amKnoxville McGhee Tyson
4h 54m
1 stop
DCA10:54 amWashington, D.C. Reagan-National
Jan 11
DCA7:30 pmWashington, D.C. Reagan-National
4h 16m
1 stop
TYS11:46 pmKnoxville McGhee Tyson
$212
Delta
Nov 3
TYS11:50 amKnoxville McGhee Tyson
5h 36m
1 stop
DCA5:26 pmWashington, D.C. Reagan-National
Nov 7
DCA8:00 amWashington, D.C. Reagan-National
5h 31m
1 stop
TYS1:31 pmKnoxville McGhee Tyson
$249

momondo Fare Finder

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

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Route

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Price

Cheapest round-trip

KnoxvilleWashington, D.C.

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

TYSDCA

Knoxville McGhee Tyson

Mon 11/9

7:22 pm-11:46 pm

1 stop4h 24m

Washington, D.C. Reagan-National

Sat 11/14

10:15 am-1:55 pm

1 stop3h 40m

$190

KnoxvilleWashington, D.C.

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

TYSDCA

Knoxville McGhee Tyson

Fri 10/16

7:17 am-9:00 am

Nonstop1h 43m

Washington, D.C. Reagan-National

Mon 10/19

8:25 am-10:25 am

Nonstop2h 00m

$192

KnoxvilleWashington, D.C.

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

TYSDCA

Knoxville McGhee Tyson

Fri 1/8

7:02 am-9:00 am

Nonstop1h 58m

Washington, D.C. Reagan-National

Mon 1/11

7:52 pm-9:45 pm

Nonstop1h 53m

$192

KnoxvilleWashington, D.C.

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

TYSDCA

Knoxville McGhee Tyson

Mon 11/16

5:15 pm-10:00 pm

1 stop4h 45m

Washington, D.C. Reagan-National

Wed 11/18

6:10 am-12:20 pm

2 stops6h 10m

$195

KnoxvilleWashington, D.C.

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

TYSDCA

Knoxville McGhee Tyson

Mon 11/9

7:25 pm-10:55 pm

1 stop3h 30m

Washington, D.C. Reagan-National

Sat 11/14

7:25 am-5:45 pm

2 stops10h 20m

$201

KnoxvilleWashington, D.C.

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

TYSDCA

Knoxville McGhee Tyson

Fri 1/8

6:00 am-10:54 am

1 stop4h 54m

Washington, D.C. Reagan-National

Mon 1/11

7:30 pm-11:46 pm

1 stop4h 16m

$212
Quickest round-trip

KnoxvilleWashington, D.C.

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

TYSDCA

Knoxville McGhee Tyson

Wed 11/11

6:48 am-8:35 am

Nonstop1h 47m

Washington, D.C. Reagan-National

Sun 11/15

3:46 pm-5:40 pm

Nonstop1h 54m

$213

KnoxvilleWashington, D.C.

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

TYSDCA

Knoxville McGhee Tyson

Fri 10/23

7:25 pm-11:05 pm

1 stop3h 40m

Washington, D.C. Reagan-National

Mon 10/26

7:15 pm-10:45 pm

1 stop3h 30m

$223

KnoxvilleWashington, D.C.

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

TYSDCA

Knoxville McGhee Tyson

Tue 10/13

7:13 pm-11:59 pm

1 stop4h 46m

Washington, D.C. Reagan-National

Tue 10/20

8:25 am-10:25 am

Nonstop2h 00m

$223

KnoxvilleWashington, D.C.

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

TYSDCA

Knoxville McGhee Tyson

Sat 10/10

4:49 pm-10:20 pm

1 stop5h 31m

Washington, D.C. Reagan-National

Tue 10/13

8:25 am-10:25 am

Nonstop2h 00m

$223

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Knoxville to Washington, D.C. Reagan-National Airport

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

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

Prices are currently low for flights on this route.

Typical prices usually range from $306 to $448.
The lowest price recently found on this route was $190.

What is the cheapest month to fly to Washington, D.C. Reagan-National Airport?

The month of January is, on average, the cheapest month to fly to Washington, D.C. Reagan-National Airport from Knoxville, with most prices found around $259. If you aren’t able to travel to Washington, D.C. Reagan-National Airport during the month of January, then flying in May is also cheap. Prices for this month can be found on momondo for an average of $263.

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

The cheapest day to depart from Knoxville to Washington, D.C. Reagan-National Airport is on a Saturday. Travelers who choose to depart for Washington, D.C. Reagan-National Airport on a Saturday will often find tickets for as low as $315. Flights from Knoxville to Washington, D.C. Reagan-National Airport on a Monday will generally be more expensive and average around $534. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

Our data shows that the cheapest Knoxville to Washington, D.C. Reagan-National Airport flights are usually those with departure times in the afternoon. Our users have found flights to Washington, D.C. Reagan-National Airport in the afternoon for as low as $339. In contrast, the most expensive time of day to depart to Washington, D.C. Reagan-National Airport is at noon when prices are around $427.

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

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

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

There are 4 cabin classes available to choose from on Knoxville to Washington, D.C. Reagan-National Airport 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. Reagan-National Airport flights?

You could potentially save up to 54% on your flight if you consider stops on a Knoxville to Washington, D.C. Reagan-National Airport flight.

How have Knoxville to Washington, D.C. Reagan-National Airport flight prices changed over time?

As of September 2026, prices for Knoxville to Washington, D.C. Reagan-National Airport flights are approximately 37% more expensive when compared to flights at the same time last year.

When to book flights from Knoxville to Washington, D.C. Reagan-National Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Knoxville to Washington, D.C. Reagan-National Airport 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. Reagan-National Airport (TYS to DCA) flight deals and tips

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

Best Price Found

$90

Fastest flight time

1h 43m

Direct flights

Every day
The best one-way flight to Washington, D.C. Reagan-National Airport from Knoxville in the past 72 hours is $90. The best round-trip flight deal from Knoxville to Washington, D.C. Reagan-National Airport found on momondo in the last 72 hours is $190.
The fastest flight from Knoxville to Washington, D.C. Reagan-National Airport takes 1h 43m
Direct flights go from Knoxville to Washington, D.C. Reagan-National Airport every day.
Search flight deals

Frequently asked questions about flying from Knoxville to Washington, D.C. Reagan-National Airport

  • How far is Knoxville McGhee Tyson to Washington, D.C. Reagan-National by plane?

    Washington, D.C. Reagan-National is 426.9 mi away from Knoxville McGhee Tyson. Flights usually cover this in 1h 43m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from Knoxville McGhee Tyson Airport to Washington, D.C. Reagan-National Airport are updated daily.

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

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

    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. Reagan-National Airport.

  • What documentation or ID do you need to fly to Washington, D.C. Reagan-National Airport?

    The travel and health documents you'll need for your trip to Washington, D.C. Reagan-National Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Washington, D.C. Reagan-National Airport. It is always advisable to seek 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. Reagan-National Airport?

  • What is the most popular airline from Knoxville to Washington, D.C. Reagan-National Airport?

Best airlines flying from Knoxville to Washington, D.C. Reagan-National Airport

Compare and see reviews for airlines that fly from Knoxville to Washington, D.C. Reagan-National Airport with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $186Free CancellationRating
7.1
12,075 reviews
Search American Airlines flights

  • American Airlines Flights From Knoxville to Washington, D.C. Reagan-National Airport

    American Airlines flight deals from Knoxville to Washington, D.C. Reagan-National Airport start from $186 round-trip. Over the 18 American Airlines flights for this route in a normal week, average airfare is usually $303 round-trip - but some users have found much cheaper deals with momondo.

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
National Harbor
Arlington
Gettysburg
Fredericksburg
Laurel
Waldorf
Woodbridge
Gaithersburg
Linthicum Heights
Rockville
Silver Spring
Towson
Fairfax
Springfield
Colonial Beach
Edgewood
Glen Burnie
Bethesda
College Park

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Washington, D.C. from Knoxville.

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

Yes. All flights to Washington, D.C. from Knoxville on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search for Knoxville to Washington, D.C. flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are not ready to book a flight from Knoxville to Washington, D.C. now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Washington, D.C. and let you know when they change.

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