Cheap flights from Knoxville to Washington, D.C. from $116

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 8/9. 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 round-trip flights

American Airlines Logo
6:13 am - 7:59 amTYS-DCA
1h 46mnonstop
American Airlines Logo
2:59 pm - 4:49 pmDCA-TYS
1h 50mnonstop
$184American Airlines
Find Deal
Sat, Aug 30 - Wed, Sep 3
American Airlines Logo
6:03 am - 7:45 amTYS-DCA
1h 42mnonstop
American Airlines Logo
8:14 pm - 9:56 pmDCA-TYS
1h 42mnonstop
$189American Airlines
Find Deal
Fri, Oct 24 - Mon, Oct 27
Delta Logo
5:45 am - 9:11 amTYS-DCA
3h 26m1 stop
Delta Logo
8:00 am - 1:08 pmDCA-TYS
5h 08m1 stop
$204Delta
Find Deal
Wed, Aug 27 - Sat, Aug 30
Delta Logo
7:15 pm - 11:19 pmTYS-DCA
4h 04m1 stop
Delta Logo
6:00 am - 10:35 amDCA-TYS
4h 35m1 stop
$209Delta
Find Deal
Fri, Oct 24 - Mon, Oct 27
United Airlines Logo
7:00 am - 12:58 pmTYS-DCA
5h 58m1 stop
United Airlines Logo
3:30 pm - 10:35 pmDCA-TYS
7h 05m1 stop
$214United Airlines
Find Deal
Wed, Jul 23 - Wed, Jul 30
Alaska Airlines Logo
6:34 am - 8:19 amTYS-DCA
1h 45mnonstop
Alaska Airlines Logo
8:14 pm - 10:00 pmDCA-TYS
1h 46mnonstop
$243Alaska Airlines
Find Deal
Fri, Aug 1 - Mon, Aug 4
Frontier Logo
8:33 pm - 9:59 pmTYS-DCA
25h 26m1 stop
Frontier Logo
7:00 am - 7:41 pmDCA-TYS
12h 41m1 stop
$281Frontier
Find Deal
Sun, Aug 24 - Thu, Aug 28
Alaska Airlines Logo
11:03 am - 12:40 pmTYS-DCA
1h 37mnonstop
Alaska Airlines Logo
4:50 pm - 8:39 pmDCA-TYS
3h 49m1 stop
$282Alaska Airlines
Find Deal
Fri, Aug 1 - Mon, Aug 4
Frontier Logo
5:25 pm - 12:04 pmTYS-DCA
18h 39m1 stop
Frontier Logo
7:00 am - 7:41 pmDCA-TYS
12h 41m1 stop
$284Frontier
Find Deal
Sun, Aug 17 - Thu, Aug 21
United Airlines Logo
5:39 pm - 11:56 pmTYS-DCA
6h 17m1 stop
United Airlines Logo
3:30 pm - 8:58 pmDCA-TYS
5h 28m1 stop
$354United Airlines
Find Deal
Sat, Dec 27 - Wed, Dec 31

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
Aug 30
TYS6:13 amKnoxville McGhee Tyson
1h 46m
DCA7:59 amWashington, D.C. Reagan-National
Sep 3
DCA2:59 pmWashington, D.C. Reagan-National
1h 50m
TYS4:49 pmKnoxville McGhee Tyson
American Airlines
Oct 24
TYS6:03 amKnoxville McGhee Tyson
1h 42m
DCA7:45 amWashington, D.C. Reagan-National
Oct 27
DCA8:14 pmWashington, D.C. Reagan-National
1h 42m
TYS9:56 pmKnoxville McGhee Tyson
American Airlines
Jul 23
TYS11:06 amKnoxville McGhee Tyson
1h 39m
DCA12:45 pmWashington, D.C. Reagan-National
Jul 30
DCA8:48 amWashington, D.C. Reagan-National
1h 48m
TYS10:36 amKnoxville McGhee Tyson

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
Aug 27
TYS5:45 amKnoxville McGhee Tyson
3h 26m
1 stop
DCA9:11 amWashington, D.C. Reagan-National
Aug 30
DCA8:00 amWashington, D.C. Reagan-National
5h 08m
1 stop
TYS1:08 pmKnoxville McGhee Tyson
Delta
Oct 24
TYS7:15 pmKnoxville McGhee Tyson
4h 04m
1 stop
DCA11:19 pmWashington, D.C. Reagan-National
Oct 27
DCA6:00 amWashington, D.C. Reagan-National
4h 35m
1 stop
TYS10:35 amKnoxville McGhee Tyson
Delta
Dec 8
TYS7:15 pmKnoxville McGhee Tyson
4h 04m
1 stop
DCA11:19 pmWashington, D.C. Reagan-National
Dec 25
DCA7:20 amWashington, D.C. Reagan-National
5h 05m
1 stop
TYS12:25 pmKnoxville McGhee Tyson

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

The month of November is, on average, the cheapest month to fly to Washington, D.C. Reagan-National Airport from Knoxville, with most prices found around $253. If you aren’t able to travel to Washington, D.C. Reagan-National Airport during the month of November, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $259.

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 Wednesday. Travelers who choose to depart for Washington, D.C. Reagan-National Airport on a Wednesday will often find tickets for as low as $307. Flights from Knoxville to Washington, D.C. Reagan-National Airport on a Monday will generally be more expensive and average around $466. 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 $313. In contrast, the most expensive time of day to depart to Washington, D.C. Reagan-National Airport is in the morning when prices are around $355.

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

How far in advance should I book a flight to Washington, D.C. Reagan-National Airport?

You are more likely to see cheaper flights to Washington, D.C. Reagan-National Airport from Knoxville when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. Reagan-National Airport for around $312 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. Reagan-National Airport from Knoxville for as low as $236 on momondo.

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

There are 3 cabin classes available to choose from on Knoxville McGhee Tyson to Washington, D.C. Reagan-National flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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

As of July 2025, 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

$116

Fastest flight time

1h 36m

Direct flights

Every day
The best one-way flight to Washington, D.C. Reagan-National Airport from Knoxville in the past 72 hours is $116. The best round-trip flight deal from Knoxville to Washington, D.C. Reagan-National Airport found on momondo in the last 72 hours is $184.
The fastest flight from Knoxville to Washington, D.C. Reagan-National Airport takes 1h 36m
Direct flights go from Knoxville to Washington, D.C. Reagan-National Airport every day.

  • 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 36m, 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 $189Free CancellationRating
7.2
10,000 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 $189 round-trip. Over the 18 American Airlines flights for this route in a normal week, average airfare is usually $295 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
Gettysburg
Arlington
National Harbor
Laurel
Woodbridge
Tysons
Silver Spring
Waldorf
Fredericksburg
Manassas
Gaithersburg
Rockville
Towson
Fairfax
Colonial Beach
Glen Burnie
Linthicum Heights
Reston
Springfield

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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1 adult
Tue 7/15
Tue 7/22

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