What is the cheapest airline that flies from Knoxville McGhee Tyson to Washington, D.C. Dulles Intl?

United Airlines is the most popular carrier operating from Knoxville McGhee Tyson to Washington, D.C. Dulles Intl

What airlines fly to Washington, D.C. Dulles Intl Airport?

United Airlines, Allegiant Air and American Airlines are the top three most popular airlines that fly to Washington, D.C. Dulles Intl Airport from Knoxville according to our data. United Airlines is the first choice among our users, with 45% of people opting to fly with this airline when traveling to Washington, D.C. Dulles Intl Airport. Keep in mind that there are 5 different airlines that fly to Washington, D.C. Dulles Intl Airport on a routine basis, so you have a few additional options to choose from.

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?

As of November 2026, there are 2 operators available to choose from 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.

$28 Cheap Flights from Knoxville to Washington, D.C. Dulles Intl Airport in 2026/27

Q: How many flights depart from Knoxville to Washington, D.C. Dulles Intl Airport on average per day?

As of November 2026, there are 12 flights per day flying from Knoxville to Washington, D.C. Dulles Intl Airport. The most common time of day flights depart is 1:00PM, with 34% of flights taking off in the afternoon.

Q: How many flights depart from Knoxville to Washington, D.C. Dulles Intl Airport on average per week?

As of November 2026, there are 86 flights per week flying from Knoxville to Washington, D.C. Dulles Intl Airport. The most common day of the week flights depart is Mon, with 17% of flights taking off on this day.

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Knoxville to Washington, D.C.

Round-trip

One-way

Last minute

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Cheap round-trip flights

Enter your travel dates to find the best prices.

3:42 pm - 5:11 pmTYS Knoxville McGhee Tyson-IAD Washington, D.C. Dulles Intl

1h 29mnonstop

8:32 pm - 10:04 pmIAD Washington, D.C. Dulles Intl-TYS Knoxville McGhee Tyson

1h 32mnonstop

$83Allegiant Air

Thu, Nov 19 - Sun, Nov 22

11:36 am - 8:11 pmTYS Knoxville McGhee Tyson-IAD Washington, D.C. Dulles Intl

8h 35m1 stop Fort Lauderdale

8:32 pm - 10:04 pmIAD Washington, D.C. Dulles Intl-TYS Knoxville McGhee Tyson

1h 32mnonstop

$149Multiple Airlines

Thu, Nov 19 - Sun, Nov 22

11:36 am - 8:11 pmTYS Knoxville McGhee Tyson-IAD Washington, D.C. Dulles Intl

8h 35m1 stop Fort Lauderdale

8:32 pm - 10:04 pmIAD Washington, D.C. Dulles Intl-TYS Knoxville McGhee Tyson

1h 32mnonstop

$157Multiple Airlines

Thu, Nov 19 - Sun, Nov 22

11:36 am - 8:11 pmTYS Knoxville McGhee Tyson-IAD Washington, D.C. Dulles Intl

8h 35m1 stop Fort Lauderdale

8:32 pm - 10:04 pmIAD Washington, D.C. Dulles Intl-TYS Knoxville McGhee Tyson

1h 32mnonstop

$165Multiple Airlines

Thu, Nov 19 - Sun, Nov 22

11:36 am - 8:11 pmTYS Knoxville McGhee Tyson-IAD Washington, D.C. Dulles Intl

8h 35m1 stop Fort Lauderdale

8:32 pm - 10:04 pmIAD Washington, D.C. Dulles Intl-TYS Knoxville McGhee Tyson

1h 32mnonstop

$166Multiple Airlines

Thu, Nov 19 - Sun, Nov 22

11:36 am - 8:11 pmTYS Knoxville McGhee Tyson-IAD Washington, D.C. Dulles Intl

8h 35m1 stop Fort Lauderdale

8:32 pm - 10:04 pmIAD Washington, D.C. Dulles Intl-TYS Knoxville McGhee Tyson

1h 32mnonstop

$166Multiple Airlines

Thu, Nov 19 - Sun, Nov 22

1:55 pm - 3:38 pmTYS Knoxville McGhee Tyson-IAD Washington, D.C. Dulles Intl

1h 43mnonstop

1:00 pm - 2:53 pmIAD Washington, D.C. Dulles Intl-TYS Knoxville McGhee Tyson

1h 53mnonstop

$185United Airlines

Thu, Nov 26 - Thu, Dec 3

7:35 pm - 9:15 pmTYS Knoxville McGhee Tyson-IAD Washington, D.C. Dulles Intl

1h 40mnonstop

12:55 pm - 2:44 pmIAD Washington, D.C. Dulles Intl-TYS Knoxville McGhee Tyson

1h 49mnonstop

$207United Airlines

Thu, Feb 11 - Tue, Feb 16

7:45 pm - 9:25 pmTYS Knoxville McGhee Tyson-IAD Washington, D.C. Dulles Intl

1h 40mnonstop

10:15 pm - 11:59 pmIAD Washington, D.C. Dulles Intl-TYS Knoxville McGhee Tyson

1h 44mnonstop

$207United Airlines

Sat, Dec 5 - Mon, Dec 7

5:45 am - 7:28 amTYS Knoxville McGhee Tyson-IAD Washington, D.C. Dulles Intl

1h 43mnonstop

9:40 am - 11:30 amIAD Washington, D.C. Dulles Intl-TYS Knoxville McGhee Tyson

1h 50mnonstop

$236United Airlines

Wed, Nov 25 - Sat, Nov 28

Cheap last minute flights

Enter your travel dates to find the best prices.

7:45 am - 9:13 amTYS Knoxville McGhee Tyson-IAD Washington, D.C. Dulles Intl

1h 28mnonstop

8:32 pm - 10:04 pmIAD Washington, D.C. Dulles Intl-TYS Knoxville McGhee Tyson

1h 32mnonstop

$92Allegiant Air

Thu, Nov 5 - Sun, Nov 22

7:45 am - 9:13 amTYS Knoxville McGhee Tyson-IAD Washington, D.C. Dulles Intl

1h 28mnonstop

9:48 am - 11:23 amIAD Washington, D.C. Dulles Intl-TYS Knoxville McGhee Tyson

1h 35mnonstop

$135Allegiant Air

Thu, Nov 5 - Sun, Nov 8

7:30 am - 8:58 amTYS Knoxville McGhee Tyson-IAD Washington, D.C. Dulles Intl

1h 28mnonstop

9:48 am - 11:23 amIAD Washington, D.C. Dulles Intl-TYS Knoxville McGhee Tyson

1h 35mnonstop

$232Allegiant Air

Sun, Nov 8 - Sun, Nov 15

8:55 am - 8:11 pmTYS Knoxville McGhee Tyson-IAD Washington, D.C. Dulles Intl

11h 16m1 stop Fort Lauderdale

9:48 am - 11:23 amIAD Washington, D.C. Dulles Intl-TYS Knoxville McGhee Tyson

1h 35mnonstop

$240Multiple Airlines

Thu, Nov 5 - Sun, Nov 8

5:40 am - 10:10 amTYS Knoxville McGhee Tyson-IAD Washington, D.C. Dulles Intl

4h 30m1 stop Atlanta Hartsfield-Jackson

8:05 am - 1:35 pmIAD Washington, D.C. Dulles Intl-TYS Knoxville McGhee Tyson

5h 30m1 stop Atlanta Hartsfield-Jackson

$313Delta

Thu, Nov 5 - Sun, Nov 22

5:45 am - 7:28 amTYS Knoxville McGhee Tyson-IAD Washington, D.C. Dulles Intl

1h 43mnonstop

12:55 pm - 2:48 pmIAD Washington, D.C. Dulles Intl-TYS Knoxville McGhee Tyson

1h 53mnonstop

$319United Airlines

Fri, Nov 6 - Mon, Nov 9

11:50 am - 5:10 pmTYS Knoxville McGhee Tyson-IAD Washington, D.C. Dulles Intl

5h 20m1 stop Atlanta Hartsfield-Jackson

6:00 am - 9:55 amIAD Washington, D.C. Dulles Intl-TYS Knoxville McGhee Tyson

3h 55m1 stop Atlanta Hartsfield-Jackson

$323Delta

Thu, Nov 5 - Sun, Nov 22

2:09 pm - 5:01 pmTYS Knoxville McGhee Tyson-IAD Washington, D.C. Dulles Intl

26h 52m1 stop Valparaiso Destin-Ft Walton Beach

9:48 am - 11:23 amIAD Washington, D.C. Dulles Intl-TYS Knoxville McGhee Tyson

1h 35mnonstop

$364Allegiant Air

Sun, Nov 8 - Sun, Nov 15

5:45 am - 7:28 amTYS Knoxville McGhee Tyson-IAD Washington, D.C. Dulles Intl

1h 43mnonstop

5:45 pm - 7:36 pmIAD Washington, D.C. Dulles Intl-TYS Knoxville McGhee Tyson

1h 51mnonstop

$369United Airlines

Sat, Nov 7 - Mon, Nov 9

5:45 am - 7:28 amTYS Knoxville McGhee Tyson-IAD Washington, D.C. Dulles Intl

1h 43mnonstop

6:10 am - 10:44 amIAD Washington, D.C. Dulles Intl-TYS Knoxville McGhee Tyson

4h 34m1 stop Newark

$374United Airlines

Fri, Nov 6 - Mon, Nov 9

Cheap direct flights

Enter your travel dates to find the best prices.

3:42 pm - 5:11 pmTYS Knoxville McGhee Tyson-IAD Washington, D.C. Dulles Intl

1h 29mnonstop

8:32 pm - 10:04 pmIAD Washington, D.C. Dulles Intl-TYS Knoxville McGhee Tyson

1h 32mnonstop

$83Allegiant Air

Thu, Nov 19 - Sun, Nov 22

1:55 pm - 3:38 pmTYS Knoxville McGhee Tyson-IAD Washington, D.C. Dulles Intl

1h 43mnonstop

1:00 pm - 2:53 pmIAD Washington, D.C. Dulles Intl-TYS Knoxville McGhee Tyson

1h 53mnonstop

$185United Airlines

Thu, Nov 26 - Thu, Dec 3

7:35 pm - 9:15 pmTYS Knoxville McGhee Tyson-IAD Washington, D.C. Dulles Intl

1h 40mnonstop

12:55 pm - 2:44 pmIAD Washington, D.C. Dulles Intl-TYS Knoxville McGhee Tyson

1h 49mnonstop

$207United Airlines

Thu, Feb 11 - Tue, Feb 16

7:45 pm - 9:25 pmTYS Knoxville McGhee Tyson-IAD Washington, D.C. Dulles Intl

1h 40mnonstop

10:15 pm - 11:59 pmIAD Washington, D.C. Dulles Intl-TYS Knoxville McGhee Tyson

1h 44mnonstop

$207United Airlines

Sat, Dec 5 - Mon, Dec 7

5:45 am - 7:28 amTYS Knoxville McGhee Tyson-IAD Washington, D.C. Dulles Intl

1h 43mnonstop

9:40 am - 11:30 amIAD Washington, D.C. Dulles Intl-TYS Knoxville McGhee Tyson

1h 50mnonstop

$236United Airlines

Wed, Nov 25 - Sat, Nov 28

5:45 am - 7:28 amTYS Knoxville McGhee Tyson-IAD Washington, D.C. Dulles Intl

1h 43mnonstop

10:12 pm - 11:59 pmIAD Washington, D.C. Dulles Intl-TYS Knoxville McGhee Tyson

1h 47mnonstop

$237United Airlines

Sat, Nov 21 - Sun, Nov 22

9:45 am - 11:30 amTYS Knoxville McGhee Tyson-IAD Washington, D.C. Dulles Intl

1h 45mnonstop

5:45 pm - 7:35 pmIAD Washington, D.C. Dulles Intl-TYS Knoxville McGhee Tyson

1h 50mnonstop

$237United Airlines

Sun, Jan 24 - Tue, Feb 23

9:45 am - 11:28 amTYS Knoxville McGhee Tyson-IAD Washington, D.C. Dulles Intl

1h 43mnonstop

5:55 pm - 7:47 pmIAD Washington, D.C. Dulles Intl-TYS Knoxville McGhee Tyson

1h 52mnonstop

$237United Airlines

Thu, Dec 3 - Sun, Dec 6

7:10 pm - 8:50 pmTYS Knoxville McGhee Tyson-IAD Washington, D.C. Dulles Intl

1h 40mnonstop

10:10 pm - 11:59 pmIAD Washington, D.C. Dulles Intl-TYS Knoxville McGhee Tyson

1h 49mnonstop

$237United Airlines

Thu, Feb 4 - Sun, Feb 7

9:45 am - 11:28 amTYS Knoxville McGhee Tyson-IAD Washington, D.C. Dulles Intl

1h 43mnonstop

10:12 pm - 11:59 pmIAD Washington, D.C. Dulles Intl-TYS Knoxville McGhee Tyson

1h 47mnonstop

$239United Airlines

Sat, Nov 14 - Wed, Nov 18

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

Our best Allegiant Air deals on Knoxville to Washington, D.C. Dulles Intl Airport flight tickets

Allegiant Air

Nov 19

TYS3:42 pmKnoxville McGhee Tyson

1h 29m

IAD5:11 pmWashington, D.C. Dulles Intl

Nov 22

IAD8:32 pmWashington, D.C. Dulles Intl

1h 32m

TYS10:04 pmKnoxville McGhee Tyson

$83

Allegiant Air

Nov 12

TYS7:45 amKnoxville McGhee Tyson

1h 28m

IAD9:13 amWashington, D.C. Dulles Intl

Nov 15

IAD9:48 amWashington, D.C. Dulles Intl

1h 35m

TYS11:23 amKnoxville McGhee Tyson

$87

Allegiant Air

Nov 12

TYS7:45 amKnoxville McGhee Tyson

1h 28m

IAD9:13 amWashington, D.C. Dulles Intl

Nov 15

IAD9:48 amWashington, D.C. Dulles Intl

1h 35m

TYS11:23 amKnoxville McGhee Tyson

$88

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 8

TYS12:00 pmKnoxville McGhee Tyson

6h 05m

1 stop

IAD6:05 pmWashington, D.C. Dulles Intl

Jan 11

IAD12:00 pmWashington, D.C. Dulles Intl

3h 54m

1 stop

TYS3:54 pmKnoxville McGhee Tyson

$227

Delta

Dec 3

TYS7:26 pmKnoxville McGhee Tyson

5h 15m

1 stop

IAD12:41 amWashington, D.C. Dulles Intl

Dec 6

IAD6:00 amWashington, D.C. Dulles Intl

4h 01m

1 stop

TYS10:01 amKnoxville McGhee Tyson

$244

Delta

Nov 14

TYS5:40 amKnoxville McGhee Tyson

4h 19m

1 stop

IAD9:59 amWashington, D.C. Dulles Intl

Nov 18

IAD10:11 amWashington, D.C. Dulles Intl

5h 04m

1 stop

TYS3:15 pmKnoxville McGhee Tyson

$259

momondo Fare Finder

Use the filters below to find and compare flights from Knoxville to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

KnoxvilleWashington, D.C.

TYS Knoxville McGhee Tyson - IAD Washington, D.C. Dulles Intl

TYSIAD

Knoxville McGhee Tyson

Thu 11/19

3:42 pm-5:11 pm

Nonstop1h 29m

Washington, D.C. Dulles Intl

Sun 11/22

8:32 pm-10:04 pm

Nonstop1h 32m

$83

KnoxvilleWashington, D.C.

TYS Knoxville McGhee Tyson - IAD Washington, D.C. Dulles Intl

TYSIAD

Knoxville McGhee Tyson

Thu 11/19

11:36 am-8:11 pm

1 stop8h 35m

Washington, D.C. Dulles Intl

Sun 11/22

8:32 pm-10:04 pm

Nonstop1h 32m

$149

KnoxvilleWashington, D.C.

TYS Knoxville McGhee Tyson - IAD Washington, D.C. Dulles Intl

TYSIAD

Knoxville McGhee Tyson

Thu 11/19

11:36 am-8:11 pm

1 stop8h 35m

Washington, D.C. Dulles Intl

Sun 11/22

8:32 pm-10:04 pm

Nonstop1h 32m

$157

KnoxvilleWashington, D.C.

TYS Knoxville McGhee Tyson - IAD Washington, D.C. Dulles Intl

TYSIAD

Knoxville McGhee Tyson

Thu 11/19

11:36 am-8:11 pm

1 stop8h 35m

Washington, D.C. Dulles Intl

Sun 11/22

8:32 pm-10:04 pm

Nonstop1h 32m

$165

KnoxvilleWashington, D.C.

TYS Knoxville McGhee Tyson - IAD Washington, D.C. Dulles Intl

TYSIAD

Knoxville McGhee Tyson

Thu 11/19

11:36 am-8:11 pm

1 stop8h 35m

Washington, D.C. Dulles Intl

Sun 11/22

8:32 pm-10:04 pm

Nonstop1h 32m

$166

KnoxvilleWashington, D.C.

TYS Knoxville McGhee Tyson - IAD Washington, D.C. Dulles Intl

TYSIAD

Knoxville McGhee Tyson

Thu 11/19

11:36 am-8:11 pm

1 stop8h 35m

Washington, D.C. Dulles Intl

Sun 11/22

8:32 pm-10:04 pm

Nonstop1h 32m

$166

KnoxvilleWashington, D.C.

TYS Knoxville McGhee Tyson - IAD Washington, D.C. Dulles Intl

TYSIAD

Knoxville McGhee Tyson

Thu 11/26

1:55 pm-3:38 pm

Nonstop1h 43m

Washington, D.C. Dulles Intl

Thu 12/3

1:00 pm-2:53 pm

Nonstop1h 53m

$185

KnoxvilleWashington, D.C.

TYS Knoxville McGhee Tyson - IAD Washington, D.C. Dulles Intl

TYSIAD

Knoxville McGhee Tyson

Thu 2/11

7:35 pm-9:15 pm

Nonstop1h 40m

Washington, D.C. Dulles Intl

Tue 2/16

12:55 pm-2:44 pm

Nonstop1h 49m

$207

KnoxvilleWashington, D.C.

TYS Knoxville McGhee Tyson - IAD Washington, D.C. Dulles Intl

TYSIAD

Knoxville McGhee Tyson

Sat 12/5

7:45 pm-9:25 pm

Nonstop1h 40m

Washington, D.C. Dulles Intl

Mon 12/7

10:15 pm-11:59 pm

Nonstop1h 44m

$207

KnoxvilleWashington, D.C.

TYS Knoxville McGhee Tyson - IAD Washington, D.C. Dulles Intl

TYSIAD

Knoxville McGhee Tyson

Wed 11/25

5:45 am-7:28 am

Nonstop1h 43m

Washington, D.C. Dulles Intl

Sat 11/28

9:40 am-11:30 am

Nonstop1h 50m

$236

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Other information

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

Prices are currently low for flights on this route.

Typical prices usually range from $139 to $439.
The lowest price recently found on this route was $83.

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

In general, March 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 $130. If you aren’t able to travel to Washington, D.C. Dulles Intl Airport during the month of March, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $143.

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 $479. When flying out on a Saturday, 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 $972.

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 afternoon is the least expensive time of day to depart. momondo users have found prices as low as $84 when looking at flights departing in the afternoon. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $976 on average. Flights to Washington, D.C. Dulles Intl Airport from Knoxville in the evening 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

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

There are 4 cabin classes available to choose from on Knoxville to Washington, D.C. Dulles Intl Airport 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 November 2026, prices for Knoxville to Washington, D.C. Dulles Intl Airport flights are approximately 53% 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	$28
Fastest flight time	1h 28m
Direct flights	Every day

The best one-way flight to Washington, D.C. Dulles Intl Airport from Knoxville in the past 72 hours is $28. The best round-trip flight deal from Knoxville to Washington, D.C. Dulles Intl Airport found on momondo in the last 72 hours is $83.

The fastest flight from Knoxville to Washington, D.C. Dulles Intl Airport takes 1h 28m

Direct flights go from Knoxville to Washington, D.C. Dulles Intl Airport every day.

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Frequently asked questions about flying from Knoxville to Washington, D.C. Dulles Intl Airport

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 28m.
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?
As of November 2026, there are 2 operators available to choose from 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?
Based on momondo bookings for flights between Knoxville and Washington, D.C. Dulles Intl Airport, the leading plane model is Embraer 175 (Enhanced Winglets), making up 27.48% of the total bookings. Other popular models include Embraer ERJ-135 / ERJ-140 / ERJ-145 with 26.58%, Airbus A320-100/200 with 14.19%, and Canadair (Bombardier) Regional Jet 700 with 14.19%.
What is the most popular airline from Knoxville to Washington, D.C. Dulles Intl Airport?
momondo data reveals that the most frequently booked airline on the route from Knoxville to Washington, D.C. Dulles Intl Airport is United Airlines, representing 68% of all bookings. The subsequent popular airline is Allegiant Air at 32%.

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
Allegiant Air	PriceFrom $46	Free Cancellation	Rating 7.3 679 reviews		Search Allegiant Air flights
United Airlines	PriceFrom $199	Free Cancellation	Rating 7.3 10,462 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 $199 round-trip. Over the 14 United Airlines flights for this route in a normal week, average airfare is usually $334 round-trip - but some users have found much cheaper deals with momondo.

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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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Cheap flights from Knoxville to Washington, D.C. from $28

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