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Cheap flights from Knoxville to Washington, D.C. from $80

This is the cheapest round-trip 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 6/13. 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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Find the cheapest flights from Knoxville to Washington, D.C.

Cheap round-trip flights

KAYAK's recommended round-trip deals from the most popular airlines that fly from Knoxville to Washington, D.C..
Allegiant Air Logo
12:45 pm - 2:23 pmTYS-IAD
1h 38mnonstop
Allegiant Air Logo
3:13 pm - 4:47 pmIAD-TYS
1h 34mnonstop
$80Allegiant Air
Find Deal
Fri, Jun 13 - Mon, Jun 16
Allegiant Air Logo
12:45 pm - 2:23 pmTYS-IAD
1h 38mnonstop
Allegiant Air Logo
3:13 pm - 4:47 pmIAD-TYS
1h 34mnonstop
$86Allegiant Air
Find Deal
Fri, May 23 - Fri, May 30
American Airlines Logo
6:00 am - 7:40 amTYS-DCA
1h 40mnonstop
American Airlines Logo
7:52 am - 9:35 amDCA-TYS
1h 43mnonstop
$189American Airlines
Find Deal
Thu, May 15 - Mon, May 19
United Airlines Logo
5:45 am - 7:26 amTYS-IAD
1h 41mnonstop
United Airlines Logo
10:13 pm - 11:59 pmIAD-TYS
1h 46mnonstop
$189United Airlines
Find Deal
Thu, Jun 12 - Mon, Jun 16
American Airlines Logo
5:12 pm - 6:50 pmTYS-DCA
1h 38mnonstop
American Airlines Logo
8:10 pm - 9:50 pmDCA-TYS
1h 40mnonstop
$190American Airlines
Find Deal
Fri, Jun 6 - Mon, Jun 9
 Logo
7:15 am - 2:32 pmTYS-IAD
31h 17m2 stops
 Logo
3:13 pm - 4:47 pmIAD-TYS
1h 34mnonstop
Fri, Jun 6 - Mon, Jun 9
 Logo
7:15 am - 2:44 pmTYS-IAD
31h 29m2 stops
 Logo
3:13 pm - 4:47 pmIAD-TYS
1h 34mnonstop
Fri, May 30 - Fri, Jun 6
United Airlines Logo
7:00 am - 11:49 amTYS-IAD
4h 49m1 stop
United Airlines Logo
8:20 am - 10:05 amIAD-TYS
1h 45mnonstop
$204United Airlines
Find Deal
Thu, May 15 - Mon, May 19
Delta Logo
5:45 am - 9:14 amTYS-IAD
3h 29m1 stop
Delta Logo
6:00 am - 11:23 amIAD-TYS
5h 23m1 stop
$209Delta
Find Deal
Thu, May 15 - Sun, May 18
Delta Logo
5:57 pm - 11:41 pmTYS-DCA
5h 44m1 stop
Delta Logo
1:40 pm - 8:35 pmDCA-TYS
6h 55m1 stop
$209Delta
Find Deal
Fri, Jun 13 - Mon, Jun 16

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

Our best American Airlines deals on Knoxville to Washington, D.C. flight tickets
American Airlines
May 15
TYS6:00 amKnoxville McGhee Tyson
1h 40m
DCA7:40 amWashington, D.C. Reagan-National
May 19
DCA7:52 amWashington, D.C. Reagan-National
1h 43m
TYS9:35 amKnoxville McGhee Tyson
American Airlines
Jun 6
TYS5:12 pmKnoxville McGhee Tyson
1h 38m
DCA6:50 pmWashington, D.C. Reagan-National
Jun 9
DCA8:10 pmWashington, D.C. Reagan-National
1h 40m
TYS9:50 pmKnoxville McGhee Tyson
American Airlines
May 2
TYS10:35 amKnoxville McGhee Tyson
1h 37m
DCA12:12 pmWashington, D.C. Reagan-National
May 5
DCA5:30 pmWashington, D.C. Reagan-National
1h 44m
TYS7:14 pmKnoxville McGhee Tyson

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

Our best United Airlines deals on Knoxville to Washington, D.C. flight tickets
United Airlines
Jun 12
TYS5:45 amKnoxville McGhee Tyson
1h 41m
IAD7:26 amWashington, D.C. Dulles Intl
Jun 16
IAD10:13 pmWashington, D.C. Dulles Intl
1h 46m
TYS11:59 pmKnoxville McGhee Tyson
United Airlines
May 15
TYS7:00 amKnoxville McGhee Tyson
4h 49m
1 stop
IAD11:49 amWashington, D.C. Dulles Intl
May 19
IAD8:20 amWashington, D.C. Dulles Intl
1h 45m
TYS10:05 amKnoxville McGhee Tyson
United Airlines
Apr 22
TYS5:45 amKnoxville McGhee Tyson
1h 45m
IAD7:30 amWashington, D.C. Dulles Intl
May 18
IAD8:20 amWashington, D.C. Dulles Intl
1h 45m
TYS10:05 amKnoxville McGhee Tyson

See travel insights to Washington, D.C. from

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

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

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

The month of December is, on average, the cheapest month to fly to Washington, D.C. from Knoxville, with most prices found around $274. If you’re not able to fly to Washington, D.C. in December, then August is your next best option. Flight prices from Knoxville to Washington, D.C. during August average around $276.

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 Thursday. momondo users have found tickets for Thursday departures for as low as $506. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Knoxville to Washington, D.C. for around $812.

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 $321. 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 at noon because they tend to be around $1,116. 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. Reagan-National for the best Knoxville McGhee Tyson - Washington, D.C. flight prices

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

You are more likely to see cheaper flights to Washington, D.C. from Knoxville when booking 15 weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. for around $342 when searching 15 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. from Knoxville for as low as $224 on momondo.

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

There are 4 cabin classes available to choose from on Knoxville McGhee Tyson 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.

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

As of April 2025, prices for Knoxville to Washington, D.C. flights are approximately 43% 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

$93

Fastest flight time

1h 33m

Direct flights

Every day

Airports in Washington, D.C.

3 airports
The best one-way flight to Washington, D.C. from Knoxville in the past 72 hours is $93. The best round-trip flight deal from Knoxville to Washington, D.C. found on momondo in the last 72 hours is $80.
The fastest flight from Knoxville to Washington, D.C. takes 1h 33m
Direct flights go from Knoxville to Washington, D.C. every day.
There are 3 airports near Washington, D.C.: Washington, D.C. Reagan-National (DCA), Baltimore/Washington (BWI), Washington, D.C. Dulles Intl (IAD)

  • 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 33m.

  • 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.?

  • 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.?

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


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
American AirlinesPriceFrom $191Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $208Free CancellationRating
8.0
7,917 reviews
Search Delta flights
United AirlinesPriceFrom $239Free CancellationRating
7.4
8,665 reviews
Search United Airlines flights
  • United Airlines Flights From Knoxville to Washington, D.C.

    United Airlines flies from Knoxville to Washington, D.C. around 25 times per week, with 8,665 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 $239 (round-trip), much lower than the average airfare cost of $346 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 $191, round-trip. It should be noted that an average American Airlines flight deal for this route in this time was higher, at $318 round-trip. American Airlines operates 19 flights out of Knoxville into Washington, D.C. in an average week, so prices vary by time and availability. 10,000 American Airlines reviews by users on momondo have scored the airline at 7.2/10.


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

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
Arlington
Gettysburg
National Harbor
Laurel
Silver Spring
Woodbridge
Tysons
Fredericksburg
Waldorf
Manassas
Gaithersburg
Rockville
Glen Burnie
Fairfax
Linthicum Heights
Towson
Reston
Springfield
Hyattsville

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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Mon 4/21
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Find better results for your trip to the United States

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.