Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Knoxville to Washington, D.C. from $159

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.
American Airlines Logo
6:01 pm - 7:43 pmTYS  Knoxville McGhee Tyson-DCA Washington, D.C. Reagan-National
1h 42mnonstop
American Airlines Logo
7:33 pm - 9:20 pmDCA  Washington, D.C. Reagan-National-TYS Knoxville McGhee Tyson
1h 47mnonstop
$287American Airlines
Wed, Dec 30 - Fri, Jan 1
American Airlines Logo
6:26 pm - 8:17 pmTYS  Knoxville McGhee Tyson-DCA Washington, D.C. Reagan-National
1h 51mnonstop
American Airlines Logo
9:00 am - 10:52 amDCA  Washington, D.C. Reagan-National-TYS Knoxville McGhee Tyson
1h 52mnonstop
$287American Airlines
Tue, Dec 8 - Tue, Dec 15
American Airlines Logo
11:02 am - 12:42 pmTYS  Knoxville McGhee Tyson-DCA Washington, D.C. Reagan-National
1h 40mnonstop
American Airlines Logo
3:35 pm - 5:32 pmDCA  Washington, D.C. Reagan-National-TYS Knoxville McGhee Tyson
1h 57mnonstop
$287American Airlines
Wed, Jan 20 - Sat, Jan 23
American Airlines Logo
11:14 am - 12:59 pmTYS  Knoxville McGhee Tyson-DCA Washington, D.C. Reagan-National
1h 45mnonstop
American Airlines Logo
2:54 pm - 4:43 pmDCA  Washington, D.C. Reagan-National-TYS Knoxville McGhee Tyson
1h 49mnonstop
$287American Airlines
Tue, Dec 22 - Fri, Dec 25
American Airlines Logo
12:01 pm - 1:44 pmTYS  Knoxville McGhee Tyson-DCA Washington, D.C. Reagan-National
1h 43mnonstop
American Airlines Logo
1:52 pm - 3:38 pmDCA  Washington, D.C. Reagan-National-TYS Knoxville McGhee Tyson
1h 46mnonstop
$287American Airlines
Fri, Apr 9 - Tue, Apr 13
American Airlines Logo
5:47 am - 7:29 amTYS  Knoxville McGhee Tyson-DCA Washington, D.C. Reagan-National
1h 42mnonstop
American Airlines Logo
7:49 pm - 9:40 pmDCA  Washington, D.C. Reagan-National-TYS Knoxville McGhee Tyson
1h 51mnonstop
$287American Airlines
Wed, Apr 7 - Sun, Apr 11
American Airlines Logo
6:26 pm - 8:17 pmTYS  Knoxville McGhee Tyson-DCA Washington, D.C. Reagan-National
1h 51mnonstop
American Airlines Logo
8:45 am - 10:41 amDCA  Washington, D.C. Reagan-National-TYS Knoxville McGhee Tyson
1h 56mnonstop
$287American Airlines
Wed, Dec 9 - Sat, Dec 12
American Airlines Logo
6:00 am - 8:00 amTYS  Knoxville McGhee Tyson-DCA Washington, D.C. Reagan-National
2h 00mnonstop
American Airlines Logo
3:59 pm - 5:56 pmDCA  Washington, D.C. Reagan-National-TYS Knoxville McGhee Tyson
1h 57mnonstop
$287American Airlines
Tue, Dec 8 - Sat, Dec 12
United Airlines Logo
6:20 am - 12:49 pmTYS  Knoxville McGhee Tyson-DCA Washington, D.C. Reagan-National
6h 29m1 stop Newark
United Airlines Logo
7:00 am - 11:39 amDCA  Washington, D.C. Reagan-National-TYS Knoxville McGhee Tyson
4h 39m1 stop Newark
$298United Airlines
Tue, Dec 8 - Sat, Dec 12
Delta Logo
5:30 am - 10:54 amTYS  Knoxville McGhee Tyson-DCA Washington, D.C. Reagan-National
5h 24m1 stop Atlanta Hartsfield-Jackson
Delta Logo
7:00 am - 11:06 amDCA  Washington, D.C. Reagan-National-TYS Knoxville McGhee Tyson
4h 06m1 stop Atlanta Hartsfield-Jackson
$307Delta
Wed, Apr 7 - Sun, Apr 11

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

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
Dec 19
TYS6:30 amKnoxville McGhee Tyson
7h 15m
2 stops
DCA1:45 pmWashington, D.C. Reagan-National
Dec 31
DCA6:05 amWashington, D.C. Reagan-National
6h 15m
1 stop
TYS12:20 pmKnoxville McGhee Tyson
$322
Southwest
Dec 5
TYS2:50 pmKnoxville McGhee Tyson
5h 05m
1 stop
DCA7:55 pmWashington, D.C. Reagan-National
Dec 7
DCA1:00 pmWashington, D.C. Reagan-National
6h 50m
1 stop
TYS7:50 pmKnoxville McGhee Tyson
$327
Southwest
Dec 5
TYS2:50 pmKnoxville McGhee Tyson
5h 05m
1 stop
DCA7:55 pmWashington, D.C. Reagan-National
Dec 7
DCA6:10 amWashington, D.C. Reagan-National
6h 10m
2 stops
TYS12:20 pmKnoxville McGhee Tyson
$332

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

Our best American Airlines deals on Knoxville to Washington, D.C. Reagan-National Airport flight tickets
American Airlines
Dec 8
TYS6:26 pmKnoxville McGhee Tyson
1h 51m
DCA8:17 pmWashington, D.C. Reagan-National
Dec 15
DCA9:00 amWashington, D.C. Reagan-National
1h 52m
TYS10:52 amKnoxville McGhee Tyson
$287
American Airlines
Dec 5
TYS6:23 amKnoxville McGhee Tyson
1h 57m
DCA8:20 amWashington, D.C. Reagan-National
Dec 7
DCA9:00 amWashington, D.C. Reagan-National
1h 52m
TYS10:52 amKnoxville McGhee Tyson
$297
American Airlines
Dec 5
TYS11:11 amKnoxville McGhee Tyson
1h 45m
DCA12:56 pmWashington, D.C. Reagan-National
Dec 7
DCA6:11 amWashington, D.C. Reagan-National
3h 44m
1 stop
TYS9:55 amKnoxville McGhee Tyson
$307

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.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

KnoxvilleWashington, D.C.

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

TYSDCA

Knoxville McGhee Tyson

Wed 12/30

6:01 pm-7:43 pm

Nonstop1h 42m

Washington, D.C. Reagan-National

Fri 1/1

7:33 pm-9:20 pm

Nonstop1h 47m

$287

KnoxvilleWashington, D.C.

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

TYSDCA

Knoxville McGhee Tyson

Tue 12/8

6:26 pm-8:17 pm

Nonstop1h 51m

Washington, D.C. Reagan-National

Tue 12/15

9:00 am-10:52 am

Nonstop1h 52m

$287

KnoxvilleWashington, D.C.

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

TYSDCA

Knoxville McGhee Tyson

Wed 1/20

11:02 am-12:42 pm

Nonstop1h 40m

Washington, D.C. Reagan-National

Sat 1/23

3:35 pm-5:32 pm

Nonstop1h 57m

$287

KnoxvilleWashington, D.C.

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

TYSDCA

Knoxville McGhee Tyson

Tue 12/22

11:14 am-12:59 pm

Nonstop1h 45m

Washington, D.C. Reagan-National

Fri 12/25

2:54 pm-4:43 pm

Nonstop1h 49m

$287

KnoxvilleWashington, D.C.

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

TYSDCA

Knoxville McGhee Tyson

Fri 4/9

12:01 pm-1:44 pm

Nonstop1h 43m

Washington, D.C. Reagan-National

Tue 4/13

1:52 pm-3:38 pm

Nonstop1h 46m

$287

KnoxvilleWashington, D.C.

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

TYSDCA

Knoxville McGhee Tyson

Wed 4/7

5:47 am-7:29 am

Nonstop1h 42m

Washington, D.C. Reagan-National

Sun 4/11

7:49 pm-9:40 pm

Nonstop1h 51m

$287

KnoxvilleWashington, D.C.

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

TYSDCA

Knoxville McGhee Tyson

Wed 12/9

6:26 pm-8:17 pm

Nonstop1h 51m

Washington, D.C. Reagan-National

Sat 12/12

8:45 am-10:41 am

Nonstop1h 56m

$287

KnoxvilleWashington, D.C.

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

TYSDCA

Knoxville McGhee Tyson

Tue 12/8

6:00 am-8:00 am

Nonstop2h 00m

Washington, D.C. Reagan-National

Sat 12/12

3:59 pm-5:56 pm

Nonstop1h 57m

$287

KnoxvilleWashington, D.C.

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

TYSDCA

Knoxville McGhee Tyson

Tue 12/8

6:20 am-12:49 pm

1 stop6h 29m

Washington, D.C. Reagan-National

Sat 12/12

7:00 am-11:39 am

1 stop4h 39m

$298

KnoxvilleWashington, D.C.

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

TYSDCA

Knoxville McGhee Tyson

Wed 4/7

5:30 am-10:54 am

1 stop5h 24m

Washington, D.C. Reagan-National

Sun 4/11

7:00 am-11:06 am

1 stop4h 06m

$307

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 $287 to $407.
The lowest price recently found on this route was $283.

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 $314. Flights from Knoxville to Washington, D.C. Reagan-National Airport on a Monday will generally be more expensive and average around $559. 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 $345. 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 3 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?

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

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

As of November 2026, prices for Knoxville to Washington, D.C. Reagan-National Airport flights are approximately 0% 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

$159

Fastest flight time

1h 42m

Direct flights

Every day
The best one-way flight to Washington, D.C. Reagan-National Airport from Knoxville in the past 72 hours is $159. The best round-trip flight deal from Knoxville to Washington, D.C. Reagan-National Airport found on momondo in the last 72 hours is $287.
The fastest flight from Knoxville to Washington, D.C. Reagan-National Airport takes 1h 42m
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 42m, 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
7.0
12,233 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 17 American Airlines flights for this route in a normal week, average airfare is usually $308 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
Waldorf
Laurel
Gaithersburg
Woodbridge
Linthicum Heights
Rockville
Silver Spring
Towson
Fairfax
Springfield
Glen Burnie
Edgewood
Colonial Beach
Falls Church
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.

An easier way to manage your Washington, D.C. Reagan-National Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 12/12
Sat 12/19
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Washington, D.C.