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Cheap flights from Washington, D.C. Dulles Intl Airport to Knoxville from $50

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Dulles Intl Airport to Knoxville departing on 7/21. 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 Washington, D.C. Dulles Intl Airport to Knoxville

Cheap round-trip flights

These are some of the best round-trip flight deals from Washington, D.C. Dulles Intl Airport to Knoxville that have been recently found on momondo from popular airlines, departing in the coming months.
3:13 pm - 4:47 pmIAD-TYS
1h 34mnonstop
12:45 pm - 2:23 pmTYS-IAD
1h 38mnonstop
$96Allegiant Air
Find Deal
Fri, Aug 1 - Fri, Aug 8
10:10 pm - 11:54 pmIAD-TYS
1h 44mnonstop
5:45 am - 7:30 amTYS-IAD
1h 45mnonstop
$199United Airlines
Find Deal
Sat, Mar 29 - Wed, Apr 2
8:20 am - 10:00 amIAD-TYS
1h 40mnonstop
7:00 am - 11:44 amTYS-IAD
4h 44m1 stop
$209United Airlines
Find Deal
Sat, Mar 29 - Wed, Apr 2
5:22 pm - 9:28 pmIAD-TYS
4h 06m1 stop
5:45 am - 9:10 amTYS-IAD
3h 25m1 stop
$219Delta
Find Deal
Tue, Mar 25 - Wed, May 14
5:50 pm - 7:36 pmIAD-TYS
1h 46mnonstop
5:45 am - 7:30 amTYS-IAD
1h 45mnonstop
$229United Airlines
Find Deal
Fri, Apr 18 - Sun, Apr 20
7:35 am - 11:14 amIAD-TYS
3h 39m1 stop
7:29 pm - 12:28 amTYS-IAD
4h 59m1 stop
$249Delta
Find Deal
Wed, Apr 2 - Sun, Apr 6
1:52 pm - 7:32 pmIAD-TYS
5h 40m1 stop
7:55 pm - 12:03 amTYS-IAD
4h 08m1 stop
$267American Airlines
Find Deal
Tue, Mar 25 - Wed, May 14
9:10 am - 3:52 pmIAD-TYS
6h 42m1 stop
7:54 pm - 11:56 pmTYS-IAD
4h 02m1 stop
$308American Airlines
Find Deal
Sat, Apr 5 - Sat, Apr 5
11:57 am - 11:00 pmIAD-TYS
11h 03m1 stop
7:15 am - 10:34 amTYS-IAD
27h 19m2 stops
Mon, Mar 24 - Thu, Mar 27
10:07 am - 4:53 pmIAD-TYS
6h 46m1 stop
9:15 am - 11:20 amTYS-IAD
26h 05m3 stops
Mon, Mar 10 - Tue, Mar 11

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

Our best Allegiant Air deals on Washington, D.C. Dulles Intl Airport to Knoxville flight tickets
Allegiant Air
Aug 1
IAD3:13 pmWashington, D.C. Dulles Intl
1h 34m
TYS4:47 pmKnoxville McGhee Tyson
Aug 8
TYS12:45 pmKnoxville McGhee Tyson
1h 38m
IAD2:23 pmWashington, D.C. Dulles Intl
Allegiant Air
May 23
IAD3:13 pmWashington, D.C. Dulles Intl
1h 34m
TYS4:47 pmKnoxville McGhee Tyson
May 26
TYS12:45 pmKnoxville McGhee Tyson
1h 38m
IAD2:23 pmWashington, D.C. Dulles Intl
Allegiant Air
Mar 7
IAD10:07 amWashington, D.C. Dulles Intl
26h 18m
1 stop
TYS12:25 pmKnoxville McGhee Tyson
Mar 9
TYS3:00 pmKnoxville McGhee Tyson
18h 17m
1 stop
IAD9:17 amWashington, D.C. Dulles Intl

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

Our best American Airlines deals on Washington, D.C. Dulles Intl Airport to Knoxville flight tickets
American Airlines
Mar 25
IAD1:52 pmWashington, D.C. Dulles Intl
5h 40m
1 stop
TYS7:32 pmKnoxville McGhee Tyson
May 14
TYS7:55 pmKnoxville McGhee Tyson
4h 08m
1 stop
IAD12:03 amWashington, D.C. Dulles Intl
American Airlines
Apr 5
IAD9:10 amWashington, D.C. Dulles Intl
6h 42m
1 stop
TYS3:52 pmKnoxville McGhee Tyson
Apr 5
TYS7:54 pmKnoxville McGhee Tyson
4h 02m
1 stop
IAD11:56 pmWashington, D.C. Dulles Intl
American Airlines
Mar 27
IAD5:28 pmWashington, D.C. Dulles Intl
3h 59m
1 stop
TYS9:27 pmKnoxville McGhee Tyson
Mar 29
TYS9:09 amKnoxville McGhee Tyson
4h 13m
1 stop
IAD1:22 pmWashington, D.C. Dulles Intl

See travel insights to Knoxville from

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

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 Knoxville?

The month of August is, on average, the cheapest month to fly to Knoxville from Washington, D.C. Dulles Intl Airport, with most prices found around $309. If you aren’t able to travel during the month of August, then book flights to Knoxville from Washington, D.C. Dulles Intl Airport during September instead. Flights to Knoxville in September, while not as cheap as those in August, still average around $327.

What is the cheapest day to depart on your flight to Knoxville?

The cheapest day to depart from Washington, D.C. Dulles Intl Airport to Knoxville is on a Wednesday. Travelers who choose to depart for Knoxville on a Wednesday will often find tickets for as low as $299. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Washington, D.C. Dulles Intl Airport to Knoxville for around $372.

What is the cheapest time of day to depart on your flight to Knoxville?

In the evening is the cheapest time of day to fly from Washington, D.C. Dulles Intl Airport to Knoxville when you can find flight prices for as low as $337. Flying to Knoxville in the evening is an ideal time because this is during off-peak travel hours. In contrast, the most expensive time of day to depart to Knoxville is in the afternoon when prices are around $352.

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

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

How far in advance should I book a flight to Knoxville?

You are more likely to see cheaper flights to Knoxville from Washington, D.C. Dulles Intl Airport when booking 22 weeks ahead of your departure date. In general, you can expect to find flights to Knoxville for around $397 when searching 22 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Knoxville from Washington, D.C. Dulles Intl Airport for as low as $249 on momondo.

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

There are 1 cabin classes available to choose from on Washington, D.C. Dulles Intl to Knoxville McGhee Tyson flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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

As of February 2025, prices for Washington, D.C. Dulles Intl Airport to Knoxville flights are approximately 33% more expensive when compared to flights at the same time last year.

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

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Dulles Intl Airport to Knoxville according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Washington, D.C. Dulles Intl Airport to Knoxville (IAD to TYS) flight deals and tips

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

Best Price Found

$50

Fastest flight time

1h 34m

Direct flights

Every day

Airports in Knoxville

1 airport
The best one-way flight to Knoxville from Washington, D.C. Dulles Intl Airport in the past 72 hours is $50. The best round-trip flight deal from Washington, D.C. Dulles Intl Airport to Knoxville found on momondo in the last 72 hours is $96.
The fastest flight from Washington, D.C. Dulles Intl Airport to Knoxville takes 1h 34m
Direct flights go from Washington, D.C. Dulles Intl Airport to Knoxville every day.
There is 1 airport near Knoxville: Knoxville McGhee Tyson (TYS)

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

    A flight from Washington, D.C. Dulles Intl to Knoxville McGhee Tyson will travel around 410.2 mi. A reasonable flight in good conditions will take 1h 34m.

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

    Prices for flights from Washington, D.C. Dulles Intl Airport to Knoxville McGhee Tyson Airport were last updated today.

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington, D.C. Dulles Intl Airport to Knoxville McGhee Tyson Airport.

  • What documentation or ID do you need to fly to Knoxville McGhee Tyson Airport?

    The required travel and health documents for your Knoxville McGhee Tyson 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 Knoxville McGhee Tyson 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 Washington, D.C. Dulles Intl Airport to Knoxville?

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


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

Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport to Knoxville with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $239Free CancellationRating
7.4
8,724 reviews
Search United Airlines flights
  • United Airlines Flights From Washington, D.C. Dulles Intl Airport to Knoxville

    United Airlines operates around 21 flights from Washington, D.C. Dulles Intl Airport to Knoxville every week. The average price of these flights found in the last 72 hours has been $381, but momondo users have found United Airlines deals from Washington, D.C. Dulles Intl Airport to Knoxville from as low as $239 round-trip. United Airlines has been scored 7.4/10 in 8,723 reviews.


Traveling to a place near Knoxville?

Book flights to Knoxville if you plan to visit one of these locations
Pigeon Forge
Gatlinburg
Cherokee
Bryson City
Morristown
Corbin
Maryville
Crossville
Murphy
Newport
Oak Ridge
Alcoa
Kodak
Dandridge
Clinton
Lenoir City
Jefferson City
Rockford

Why use momondo?

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

It is quick and easy to find Washington, D.C. to Knoxville 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 Knoxville that suits you.

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

momondo does allow users to show only those flights to Knoxville from Washington, D.C. which offer a flexible booking policy as well as other useful filters and features.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Washington, D.C. to Knoxville.

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

Yes momondo offers price alerts on flights to Knoxville from Washington, D.C.. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.


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