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Cheap flights from Knoxville to Washington, D.C. Dulles Intl Airport from $139

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. Dulles Intl Airport departing on 4/22. 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.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Knoxville to Washington, D.C..

Cheap last minute flights

Planning a quick getaway from Knoxville to Washington, D.C.? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Washington, D.C., so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Knoxville to Washington, D.C.

Find recent round-trip train or bus tickets from Knoxville to Washington, D.C..

All round-trip flight deals to Washington, D.C.

The cheapest plane tickets to Washington, D.C. found on KAYAK recently.
5:45 am - 7:31 amTYS-IAD
1h 46mnonstop
12:55 pm - 2:43 pmIAD-TYS
1h 48mnonstop
$259United Airlines
Find Deal
Thu, Jan 23 - Thu, Jan 30
1:59 pm - 6:43 pmTYS-IAD
4h 44m1 stop
12:55 pm - 2:43 pmIAD-TYS
1h 48mnonstop
$269United Airlines
Find Deal
Thu, Jan 23 - Thu, Jan 30
7:25 am - 11:51 amTYS-IAD
4h 26m1 stop
6:00 am - 11:23 amIAD-TYS
5h 23m1 stop
$278Delta
Find Deal
Thu, Jan 16 - Sun, Jan 19
1:59 pm - 6:43 pmTYS-IAD
4h 44m1 stop
8:50 am - 10:44 amIAD-TYS
1h 54mnonstop
$287United Airlines
Find Deal
Sat, Jan 18 - Thu, Jan 30
1:59 pm - 6:43 pmTYS-IAD
4h 44m1 stop
8:25 am - 1:18 pmIAD-TYS
4h 53m1 stop
$297United Airlines
Find Deal
Sat, Jan 18 - Thu, Jan 30
2:48 pm - 7:35 pmTYS-IAD
4h 47m1 stop
8:05 pm - 11:58 pmIAD-TYS
3h 53m1 stop
$307American Airlines
Find Deal
Wed, Jan 22 - Fri, Jan 24
7:25 pm - 12:09 amTYS-IAD
4h 44m1 stop
6:00 am - 11:05 amIAD-TYS
5h 05m1 stop
$308Delta
Find Deal
Fri, May 9 - Sun, May 11
2:35 pm - 4:20 pmTYS-IAD
1h 45mnonstop
12:55 pm - 2:43 pmIAD-TYS
1h 48mnonstop
$319United Airlines
Find Deal
Fri, Jan 17 - Mon, Jan 20
2:48 pm - 7:35 pmTYS-IAD
4h 47m1 stop
6:22 am - 10:36 amIAD-TYS
4h 14m1 stop
$357American Airlines
Find Deal
Fri, Jan 17 - Mon, Jan 20
7:30 am - 11:26 amTYS-IAD
27h 56m3 stops
8:30 am - 8:09 amIAD-TYS
23h 39m2 stops
Thu, Jan 9 - Mon, Jan 13
11:02 am - 4:22 pmTYS-IAD
5h 20m1 stop
$139American Airlines
Find Deal
Tue, Apr 22
9:55 am - 11:40 amTYS-IAD
1h 45mnonstop
$160United Airlines
Find Deal
Tue, Apr 22
1:59 pm - 9:01 pmTYS-IAD
7h 02m1 stop
$169United Airlines
Find Deal
Sat, Jan 18
12:13 pm - 6:00 pmTYS-IAD
5h 47m1 stop
$195Allegiant Air
Find Deal
Fri, Jan 3
5:45 am - 7:31 amTYS-IAD
1h 46mnonstop
$249United Airlines
Find Deal
Sat, Jan 18
9:50 am - 11:36 amTYS-IAD
1h 46mnonstop
$250United Airlines
Find Deal
Sun, Jan 5
7:35 pm - 9:19 pmTYS-IAD
1h 44mnonstop
$256United Airlines
Find Deal
Mon, Apr 21
7:17 pm - 12:22 amTYS-IAD
5h 05m1 stop
$259Delta
Find Deal
Tue, Jan 7
6:30 am - 7:35 pmTYS-IAD
13h 05m2 stops
$298American Airlines
Find Deal
Tue, Jan 7
7:20 am - 11:50 amTYS-IAD
4h 30m1 stop
$479Delta
Find Deal
Sun, Jan 5
10:55 am - 6:00 pmTYS-IAD
7h 05m1 stop
8:30 am - 11:40 pmIAD-TYS
15h 10m1 stop
Mon, Dec 30 - Fri, Jan 3
10:55 am - 6:00 pmTYS-IAD
7h 05m1 stop
8:30 am - 11:41 amIAD-TYS
27h 11m2 stops
Mon, Dec 30 - Fri, Jan 3
3:45 pm - 4:10 pmTYS-IAD
24h 25m3 stops
8:30 am - 11:40 pmIAD-TYS
15h 10m1 stop
Mon, Dec 30 - Fri, Jan 3
5:45 am - 7:29 amTYS-IAD
1h 44mnonstop
8:45 am - 10:39 amIAD-TYS
1h 54mnonstop
$549United Airlines
Find Deal
Mon, Dec 30 - Fri, Jan 3
7:20 am - 11:50 amTYS-IAD
4h 30m1 stop
7:15 am - 10:58 amIAD-TYS
3h 43m1 stop
$568Delta
Find Deal
Tue, Dec 31 - Sat, Jan 4
3:45 pm - 4:10 pmTYS-IAD
24h 25m3 stops
8:30 am - 11:41 amIAD-TYS
27h 11m2 stops
Mon, Dec 30 - Fri, Jan 3
9:50 am - 11:36 amTYS-IAD
1h 46mnonstop
12:45 pm - 8:48 pmIAD-TYS
8h 03m1 stop
$598United Airlines
Find Deal
Mon, Dec 30 - Fri, Jan 3
7:20 am - 11:50 amTYS-IAD
4h 30m1 stop
6:57 pm - 11:55 pmIAD-TYS
4h 58m1 stop
$618Delta
Find Deal
Sat, Dec 28 - Mon, Dec 30
6:34 am - 7:34 pmTYS-IAD
13h 00m2 stops
1:53 pm - 6:01 pmIAD-TYS
4h 08m1 stop
$677American Airlines
Find Deal
Tue, Dec 31 - Sat, Jan 4
10:58 am - 4:59 pmTYS-IAD
6h 01m1 stop
5:29 pm - 9:30 pmIAD-TYS
4h 01m1 stop
$736American Airlines
Find Deal
Sat, Dec 28 - Wed, Jan 1
5:45 am - 7:31 amTYS-IAD
1h 46mnonstop
12:55 pm - 2:43 pmIAD-TYS
1h 48mnonstop
$259United Airlines
Find Deal
Thu, Jan 23 - Thu, Jan 30
2:35 pm - 4:20 pmTYS-IAD
1h 45mnonstop
12:55 pm - 2:43 pmIAD-TYS
1h 48mnonstop
$319United Airlines
Find Deal
Fri, Jan 17 - Mon, Jan 20
9:35 am - 11:21 amTYS-IAD
1h 46mnonstop
5:44 pm - 7:36 pmIAD-TYS
1h 52mnonstop
$320United Airlines
Find Deal
Thu, Jan 16 - Sun, Jan 19
9:35 am - 11:21 amTYS-IAD
1h 46mnonstop
5:44 pm - 7:36 pmIAD-TYS
1h 52mnonstop
$344United Airlines
Find Deal
Fri, Jan 10 - Wed, Jan 15
9:35 am - 11:21 amTYS-IAD
1h 46mnonstop
5:44 pm - 7:36 pmIAD-TYS
1h 52mnonstop
$368United Airlines
Find Deal
Sun, Jan 19 - Tue, Jan 21
9:35 am - 11:21 amTYS-IAD
1h 46mnonstop
12:55 pm - 2:43 pmIAD-TYS
1h 48mnonstop
$369United Airlines
Find Deal
Thu, Jan 9 - Mon, Jan 13
5:40 am - 7:22 amTYS-IAD
1h 42mnonstop
10:10 pm - 11:54 pmIAD-TYS
1h 44mnonstop
$377United Airlines
Find Deal
Mon, Mar 17 - Fri, Mar 21
5:45 am - 7:31 amTYS-IAD
1h 46mnonstop
5:44 pm - 7:36 pmIAD-TYS
1h 52mnonstop
$378United Airlines
Find Deal
Sat, Jan 18 - Wed, Jan 22
5:51 am - 7:35 amTYS-IAD
1h 44mnonstop
8:15 am - 9:59 amIAD-TYS
1h 44mnonstop
$380United Airlines
Find Deal
Sun, May 4 - Sun, May 11
5:45 am - 7:31 amTYS-IAD
1h 46mnonstop
8:50 am - 10:44 amIAD-TYS
1h 54mnonstop
$390United Airlines
Find Deal
Sat, Jan 18 - Thu, Jan 30

Delta flights from Knoxville to Washington, D.C. Dulles Intl Airport

Our best Delta deals on Knoxville to Washington, D.C. Dulles Intl Airport flight tickets
Delta
Jan 16
TYS7:25 amKnoxville McGhee Tyson
4h 26m
1 stop
IAD11:51 amWashington, D.C. Dulles Intl
Jan 19
IAD6:00 amWashington, D.C. Dulles Intl
5h 23m
1 stop
TYS11:23 amKnoxville McGhee Tyson
Delta
May 9
TYS7:25 pmKnoxville McGhee Tyson
4h 44m
1 stop
IAD12:09 amWashington, D.C. Dulles Intl
May 11
IAD6:00 amWashington, D.C. Dulles Intl
5h 05m
1 stop
TYS11:05 amKnoxville McGhee Tyson
Delta
Jan 10
TYS10:03 amKnoxville McGhee Tyson
5h 55m
1 stop
IAD3:58 pmWashington, D.C. Dulles Intl
Jan 15
IAD6:00 amWashington, D.C. Dulles Intl
6h 18m
1 stop
TYS12:18 pmKnoxville McGhee Tyson

United Airlines flights from Knoxville to Washington, D.C. Dulles Intl Airport

Our best United Airlines deals on Knoxville to Washington, D.C. Dulles Intl Airport flight tickets
United Airlines
Jan 23
TYS5:45 amKnoxville McGhee Tyson
1h 46m
IAD7:31 amWashington, D.C. Dulles Intl
Jan 30
IAD12:55 pmWashington, D.C. Dulles Intl
1h 48m
TYS2:43 pmKnoxville McGhee Tyson
United Airlines
Jan 23
TYS1:59 pmKnoxville McGhee Tyson
4h 44m
1 stop
IAD6:43 pmWashington, D.C. Dulles Intl
Jan 30
IAD12:55 pmWashington, D.C. Dulles Intl
1h 48m
TYS2:43 pmKnoxville McGhee Tyson
United Airlines
Jan 18
TYS1:59 pmKnoxville McGhee Tyson
4h 44m
1 stop
IAD6:43 pmWashington, D.C. Dulles Intl
Jan 30
IAD8:50 amWashington, D.C. Dulles Intl
1h 54m
TYS10:44 amKnoxville McGhee Tyson

See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Knoxville to Washington, D.C. Dulles Intl 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. Dulles Intl Airport?

In general, January is the cheapest month to fly from Knoxville to Washington, D.C. Dulles Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $249. If you aren’t able to travel to Washington, D.C. Dulles Intl Airport during the month of January, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $288.

What is the cheapest day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Our data shows that Friday is the least expensive day to fly to Washington, D.C. Dulles Intl Airport. Tickets to fly out on this day can be as low as $314. 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. Dulles Intl Airport for around $429.

What is the cheapest time of day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Flying to Washington, D.C. Dulles Intl Airport from Knoxville in the evening is the least expensive time of day to depart. momondo users have found prices as low as $333 when looking at flights departing in the evening. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $392 on average. Flights to Washington, D.C. Dulles Intl Airport from Knoxville at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest Knoxville McGhee Tyson to Washington, D.C. Dulles Intl flight route?

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

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

The ideal time to book your flight to Washington, D.C. Dulles Intl Airport is 38 days in advance when prices tend to average $357. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. Dulles Intl Airport from Knoxville for as low as $223 on momondo.

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

There are 3 cabin classes available to choose from on Knoxville McGhee Tyson to Washington, D.C. Dulles Intl 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. Dulles Intl Airport flights?

You could potentially save up to 13% on your flight if you consider stops on a Knoxville to Washington, D.C. Dulles Intl Airport flight.

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

As of December 2024, prices for Knoxville to Washington, D.C. Dulles Intl Airport flights are approximately 98% more expensive when compared to flights at the same time last year.

When to book flights from Knoxville to Washington, D.C. Dulles Intl Airport

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

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

Best Price Found

$139

Fastest flight time

1h 42m

Direct flights

Every day
The best one-way flight to Washington, D.C. Dulles Intl Airport from Knoxville in the past 72 hours is $139. The best round-trip flight deal from Knoxville to Washington, D.C. Dulles Intl Airport found on momondo in the last 72 hours is $259.
The fastest flight from Knoxville to Washington, D.C. Dulles Intl Airport takes 1h 42m
Direct flights go from Knoxville to Washington, D.C. Dulles Intl Airport every day.

  • How far is Knoxville McGhee Tyson to Washington, D.C. Dulles Intl by plane?

    Washington, D.C. Dulles Intl is 410.2 mi away from Knoxville McGhee Tyson. In terms of flight time, this usually takes a little over 1h 42m.

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

    Prices for flights from Knoxville McGhee Tyson Airport to Washington, D.C. Dulles Intl Airport are refreshed on a daily basis.

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

  • How old do you have to be to fly from Knoxville McGhee Tyson Airport to Washington, D.C. Dulles Intl 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. Dulles Intl Airport.

  • What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?

    The required travel and health documents for your Washington, D.C. Dulles Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Washington, D.C. Dulles Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Knoxville to Washington, D.C. Dulles Intl Airport?

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


Best airlines flying from Knoxville to Washington, D.C. Dulles Intl Airport

Compare and see reviews for airlines that fly from Knoxville to Washington, D.C. Dulles Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $208Free CancellationRating
8.0
8,570 reviews
Search Delta flights
United AirlinesPriceFrom $239Free CancellationRating
7.4
9,002 reviews
Search United Airlines flights
  • United Airlines Flights From Knoxville to Washington, D.C. Dulles Intl Airport

    United Airlines flight deals from Knoxville to Washington, D.C. Dulles Intl Airport start from $239 round-trip. Over the 24 United Airlines flights for this route in a normal week, average airfare is usually $351 round-trip - but some users have found much cheaper deals with momondo.


Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Knoxville to Washington, D.C.. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo enables you to select and highlight flights to Washington, D.C. from Knoxville with this policy.

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

Once all potential Knoxville to Washington, D.C. flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Of course. momondo tracks the price of Knoxville to Washington, D.C. flights. All you need is a valid email address and we will do the rest; it is that quick and easy.


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