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Cheap flights from Knoxville to Washington, D.C. Dulles Intl Airport from $130

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 5/17. 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
$181Allegiant Air
Find Deal
Mon, May 26 - Fri, Jun 6
5:45 am - 7:30 amTYS-IAD
1h 45mnonstop
12:55 pm - 2:40 pmIAD-TYS
1h 45mnonstop
$199United Airlines
Find Deal
Tue, Apr 8 - Tue, Apr 15
10:50 am - 4:30 pmTYS-IAD
5h 40m1 stop
8:20 am - 10:05 amIAD-TYS
1h 45mnonstop
$209United Airlines
Find Deal
Tue, Apr 8 - Tue, Apr 15
12:45 pm - 2:23 pmTYS-IAD
1h 38mnonstop
8:30 am - 9:09 pmIAD-TYS
12h 39m1 stop
Mon, May 26 - Fri, Jun 6
5:45 am - 9:10 amTYS-IAD
3h 25m1 stop
6:00 am - 9:40 amIAD-TYS
3h 40m1 stop
$219Delta
Find Deal
Wed, Apr 2 - Sat, Apr 5
9:55 am - 11:40 amTYS-IAD
1h 45mnonstop
10:20 pm - 11:59 pmIAD-TYS
1h 39mnonstop
$229United Airlines
Find Deal
Sat, Apr 12 - Mon, Apr 14
7:23 pm - 12:28 amTYS-IAD
5h 05m1 stop
7:35 am - 11:14 amIAD-TYS
3h 39m1 stop
$249Delta
Find Deal
Mon, Mar 24 - Wed, Apr 2
8:36 am - 12:50 pmTYS-IAD
28h 14m2 stops
9:06 pm - 2:31 pmIAD-TYS
17h 25m1 stop
Thu, Mar 13 - Sun, Mar 23
7:55 pm - 12:03 amTYS-IAD
4h 08m1 stop
5:02 am - 10:28 amIAD-TYS
5h 26m1 stop
$338American Airlines
Find Deal
Thu, May 15 - Sun, May 18
11:10 am - 11:58 pmTYS-IAD
12h 48m2 stops
8:14 pm - 11:45 pmIAD-TYS
3h 31m1 stop
$352American Airlines
Find Deal
Wed, Mar 26 - Wed, Apr 16

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
Apr 2
TYS5:45 amKnoxville McGhee Tyson
3h 25m
1 stop
IAD9:10 amWashington, D.C. Dulles Intl
Apr 5
IAD6:00 amWashington, D.C. Dulles Intl
3h 40m
1 stop
TYS9:40 amKnoxville McGhee Tyson
Delta
Mar 24
TYS7:23 pmKnoxville McGhee Tyson
5h 05m
1 stop
IAD12:28 amWashington, D.C. Dulles Intl
Apr 2
IAD7:35 amWashington, D.C. Dulles Intl
3h 39m
1 stop
TYS11:14 amKnoxville McGhee Tyson
Delta
Mar 26
TYS2:35 pmKnoxville McGhee Tyson
5h 08m
1 stop
IAD7:43 pmWashington, D.C. Dulles Intl
Apr 14
IAD5:32 pmWashington, D.C. Dulles Intl
6h 16m
1 stop
TYS11:48 pmKnoxville McGhee Tyson

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

Our best American Airlines deals on Knoxville to Washington, D.C. Dulles Intl Airport flight tickets
American Airlines
May 15
TYS7:55 pmKnoxville McGhee Tyson
4h 08m
1 stop
IAD12:03 amWashington, D.C. Dulles Intl
May 18
IAD5:02 amWashington, D.C. Dulles Intl
5h 26m
1 stop
TYS10:28 amKnoxville McGhee Tyson
American Airlines
Mar 26
TYS11:10 amKnoxville McGhee Tyson
12h 48m
2 stops
IAD11:58 pmWashington, D.C. Dulles Intl
Apr 16
IAD8:14 pmWashington, D.C. Dulles Intl
3h 31m
1 stop
TYS11:45 pmKnoxville McGhee Tyson
American Airlines
May 31
TYS6:09 pmKnoxville McGhee Tyson
5h 54m
1 stop
IAD12:03 amWashington, D.C. Dulles Intl
Jun 3
IAD1:59 pmWashington, D.C. Dulles Intl
5h 16m
1 stop
TYS7:15 pmKnoxville 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 Wednesday 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 $857. 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 $1,007.

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 morning is the least expensive time of day to depart. momondo users have found prices as low as $585 when looking at flights departing in the morning. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $1,119 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?

You are more likely to see cheaper flights to Washington, D.C. Dulles Intl Airport from Knoxville when booking 15 weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. Dulles Intl Airport for around $350 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. Dulles Intl Airport from Knoxville for as low as $261 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.

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

As of February 2025, prices for Knoxville to Washington, D.C. Dulles Intl Airport flights are approximately 45% cheaper 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

$130

Fastest flight time

1h 38m

Direct flights

Every day
The best one-way flight to Washington, D.C. Dulles Intl Airport from Knoxville in the past 72 hours is $130. The best round-trip flight deal from Knoxville to Washington, D.C. Dulles Intl Airport found on momondo in the last 72 hours is $181.
The fastest flight from Knoxville to Washington, D.C. Dulles Intl Airport takes 1h 38m
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 38m.

  • 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
8,175 reviews
Search Delta flights
United AirlinesPriceFrom $239Free CancellationRating
7.4
8,740 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 21 United Airlines flights for this route in a normal week, average airfare is usually $349 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
Arlington
Gettysburg
Laurel
National Harbor
Winchester
Silver Spring
Woodbridge
Fredericksburg
Manassas
Tysons
Waldorf
Gaithersburg
Linthicum Heights
Harpers Ferry
Glen Burnie
Rockville
Fairfax
Towson
Hanover

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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