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Cheap flights from Knoxville to Washington, D.C. from $100

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 2/19. 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

These are some of the best round-trip flight deals from Knoxville to Washington, D.C. that have been recently found on momondo from popular airlines, departing in the coming months.
12:45 pm - 2:23 pmTYS-IAD
1h 38mnonstop
3:13 pm - 4:47 pmIAD-TYS
1h 34mnonstop
$110Allegiant Air
Find Deal
Fri, Jul 11 - Fri, Jul 18
12:45 pm - 2:23 pmTYS-IAD
1h 38mnonstop
3:13 pm - 4:47 pmIAD-TYS
1h 34mnonstop
$113Allegiant Air
Find Deal
Fri, Jun 13 - Mon, Jun 23
8:00 am - 6:01 pmTYS-BWI
10h 01m1 stop
10:48 am - 9:10 pmBWI-TYS
10h 22m1 stop
Tue, Feb 25 - Tue, Mar 4
8:40 am - 6:01 pmTYS-BWI
9h 21m1 stop
7:00 am - 1:46 pmBWI-TYS
6h 46m1 stop
Sat, Feb 22 - Tue, Feb 25
7:58 pm - 12:18 amTYS-BWI
4h 20m1 stop
5:00 am - 9:17 amBWI-TYS
4h 17m1 stop
$219American Airlines
Find Deal
Wed, Feb 19 - Sun, Feb 23
7:25 am - 11:41 amTYS-BWI
4h 16m1 stop
5:40 pm - 9:28 pmBWI-TYS
3h 48m1 stop
$229Delta
Find Deal
Thu, Mar 6 - Tue, Mar 11
7:58 pm - 12:18 amTYS-BWI
4h 20m1 stop
5:00 am - 9:17 amBWI-TYS
4h 17m1 stop
$234American Airlines
Find Deal
Sun, Feb 23 - Sun, Mar 2
7:20 pm - 9:02 pmTYS-IAD
1h 42mnonstop
1:20 pm - 3:04 pmIAD-TYS
1h 44mnonstop
$259United Airlines
Find Deal
Fri, Mar 7 - Mon, Mar 10
5:45 am - 9:15 amTYS-BWI
3h 30m1 stop
6:00 am - 11:14 amBWI-TYS
5h 14m1 stop
$264Delta
Find Deal
Tue, Mar 18 - Sun, Mar 30
2:25 pm - 4:04 pmTYS-IAD
1h 39mnonstop
5:10 pm - 10:45 pmIAD-TYS
5h 35m1 stop
$269United Airlines
Find Deal
Fri, Mar 7 - Mon, Mar 10

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

Our best United Airlines deals on Knoxville to Washington, D.C. flight tickets
United Airlines
Mar 7
TYS7:20 pmKnoxville McGhee Tyson
1h 42m
IAD9:02 pmWashington, D.C. Dulles Intl
Mar 10
IAD1:20 pmWashington, D.C. Dulles Intl
1h 44m
TYS3:04 pmKnoxville McGhee Tyson
United Airlines
Mar 7
TYS2:25 pmKnoxville McGhee Tyson
1h 39m
IAD4:04 pmWashington, D.C. Dulles Intl
Mar 10
IAD5:10 pmWashington, D.C. Dulles Intl
5h 35m
1 stop
TYS10:45 pmKnoxville McGhee Tyson
United Airlines
Apr 8
TYS5:45 amKnoxville McGhee Tyson
1h 45m
IAD7:30 amWashington, D.C. Dulles Intl
Apr 13
IAD10:20 pmWashington, D.C. Dulles Intl
1h 39m
TYS11:59 pmKnoxville McGhee Tyson

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

Our best American Airlines deals on Knoxville to Washington, D.C. flight tickets
American Airlines
Feb 19
TYS7:58 pmKnoxville McGhee Tyson
4h 20m
1 stop
BWI12:18 amBaltimore/Washington
Feb 23
BWI5:00 amBaltimore/Washington
4h 17m
1 stop
TYS9:17 amKnoxville McGhee Tyson
American Airlines
Feb 23
TYS7:58 pmKnoxville McGhee Tyson
4h 20m
1 stop
BWI12:18 amBaltimore/Washington
Mar 2
BWI5:00 amBaltimore/Washington
4h 17m
1 stop
TYS9:17 amKnoxville McGhee Tyson
American Airlines
Feb 21
TYS4:16 pmKnoxville McGhee Tyson
5h 23m
1 stop
BWI9:39 pmBaltimore/Washington
Feb 23
BWI5:00 amBaltimore/Washington
4h 17m
1 stop
TYS9:17 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 February is, on average, the cheapest month to fly to Washington, D.C. from Knoxville, with most prices found around $259. If you’re not able to fly to Washington, D.C. in February, then August is your next best option. Flight prices from Knoxville to Washington, D.C. during August average around $267.

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 $530. 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 $780.

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 $332. 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 $1,131. 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 20 weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. for around $399 when searching 20 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 $228 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 February 2025, prices for Knoxville to Washington, D.C. flights are approximately 42% 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

$100

Fastest flight time

1h 25m

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 $100. The best round-trip flight deal from Knoxville to Washington, D.C. found on momondo in the last 72 hours is $110.
The fastest flight from Knoxville to Washington, D.C. takes 1h 25m
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 25m.

  • 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 $195Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $208Free CancellationRating
8.0
8,406 reviews
Search Delta flights
United AirlinesPriceFrom $239Free CancellationRating
7.4
8,885 reviews
Search United Airlines flights
  • United Airlines Flights From Knoxville to Washington, D.C.

    United Airlines flies from Knoxville to Washington, D.C. around 19 times per week, with 8,885 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 $351 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 $195, round-trip. It should be noted that an average American Airlines flight deal for this route in this time was higher, at $334 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. 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
Laurel
National Harbor
Silver Spring
Manassas
Fredericksburg
Woodbridge
Gaithersburg
Waldorf
Linthicum Heights
Glen Burnie
Rockville
Tysons
Fairfax
Towson
Hanover
Reston
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.


An easier way to manage your Washington, D.C. trip

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1 adult
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Mon 2/10
Mon 2/17

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.