What are the cheapest airlines flying from Knoxville to Washington, D.C. Dulles Intl Airport round-trip?

Cheapflights users have booked flights from Knoxville to Washington, D.C. Dulles Intl Airport round-trip from $194. Other airlines that can offer you cheap pricing are Allegiant Air, from $201, and Delta, from $204. These flights start at 43% lower than the current average price 3 months from now.

What are the cheapest airlines to fly from Knoxville to Washington, D.C. Dulles Intl Airport one-way?

For one-way options, check prices for United Airlines. According to our data, you can fly for as low as $90. Users have also found prices from $100 and $126 on Allegiant Air and American Airlines, respectively.

What is the cheapest day to fly from Knoxville to Washington, D.C. Dulles Intl Airport?

Travelers seeking maximum savings on their Knoxville to Washington, D.C. Dulles Intl Airport flight should consider departing on Thursday mornings when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

What are the cheapest flights from Knoxville to Washington, D.C. Dulles Intl Airport?

Looking at all options, your cheapest flight can be booked for $114. While the most popular route (Knoxville McGhee Tyson - Washington, D.C. Dulles Intl) can be booked for $80 on average our data indicates $1,069 when flying from Knoxville to Washington, D.C. Dulles Intl Airport.

What is the cheapest day to fly round-trip from Knoxville to Washington, D.C. Dulles Intl Airport?

Users have found that leaving on a Tuesday can be a cost-effective option. It’s possible to save up to 22% on your flight compared to booking on days when demand is much higher.

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

The best pricing can be found in the month of December. Prices to Washington, D.C. Dulles Intl Airport from Knoxville average $302. You can even find prices in December for less than $302, as users have found deals to Washington, D.C. Dulles Intl Airport from as low as $189. The month of June appears to be one of the more expensive times to travel to Washington, D.C. Dulles Intl Airport from Knoxville. Flying in the targeted month can save you up to 14%.

Most accurate provider : When it comes to deals on Knoxville-Washington, D.C. Dulles Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Knoxville-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Knoxville-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Knoxville-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Knoxville-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

What airport do you fly from for flights from Knoxville to Washington, D.C. Dulles Intl?

If you book a flight to Washington, D.C. Dulles Intl from Knoxville, you will be flying from McGhee Tyson, which is the city’s only airport. Knoxville McGhee Tyson (TYS) is located 11.3 mi from the center of Knoxville. There are 10 flights from McGhee Tyson to Washington, D.C. Dulles Intl per day from 2 different airlines.

Can I find deals for flights from Knoxville to Dulles Intl that include hotel bookings?

Yes. In addition to deals on Knoxville to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Knoxville to Dulles Intl?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Knoxville to Dulles Intl.

Can I find deals for business class flights from Knoxville to Dulles Intl?

Yes. Cheapflights offers flight deals from Knoxville to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$53+ Flights from Knoxville to Washington, D.C. Dulles Intl Airport - Compare & Save Big

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1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

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We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

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Cheapflights Tip: The best prices from Knoxville McGhee Tyson to Washington, D.C. Dulles Intl are usually found in January or September, booked 70 days in advance, depart on a Wednesday or Thursday and return on a Monday

Cheap flight deals from Knoxville to Dulles Intl

Most accurate provider	FlightHub 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$194 (United Airlines)
One-way from	$90 (United Airlines)
Popular in	November
Cheapest in	January
Average price	$339
Good round-trip deal	$502 or less
Good one-way deal	$200 or less

Provider with most accurate pricing for Knoxville McGhee Tyson-Washington, D.C. Dulles Intl flight deals.

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Provider most trusted by Cheapflights users for Knoxville McGhee Tyson-Washington, D.C. Dulles Intl flights.

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From Knoxville McGhee Tyson to Washington, D.C. Dulles Intl

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One-way flight from Knoxville McGhee Tyson to Washington, D.C. Dulles Intl

Search Deals

Highest demand for flights based on searches. 10% potential increase in price ($37 potential increase over avg. RT price).

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Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).

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Average for round-trip flights in April 2025

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Price to beat on a round-trip flight from Knoxville McGhee Tyson to Washington, D.C. Dulles Intl.

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Price to beat on a one-way flight from Knoxville McGhee Tyson to Washington, D.C. Dulles Intl.

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Find flight deals from Knoxville to Dulles Intl

Cheapest flights from Knoxville to Dulles Intl
Explore the most affordable flight options available from Knoxville to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 30, 2025.

Wed 7/169:55 amTYS - IAD

Nonstop1h 40mUnited Airlines

Sun 7/208:45 amIAD - TYS

Nonstop1h 42mUnited Airlines

Deal found 4/29

$194

Wed 5/215:45 amTYS - IAD

1 stop3h 29mDelta

Wed 5/285:56 pmIAD - TYS

1 stop5h 55mDelta

Deal found 4/29

$204

Wed 7/163:36 pmTYS - IAD

1 stop16h 59mAllegiant Air

Sun 7/209:05 pmIAD - TYS

1 stop16h 18mAllegiant Air

Deal found 4/29

$208

Sun 6/89:34 pmTYS - IAD

2 stops22h 43mMultiple Airlines

Fri 6/133:13 pmIAD - TYS

Nonstop1h 34mMultiple Airlines

Deal found 4/29

$245

Wed 5/287:54 pmTYS - IAD

1 stop4h 08mAmerican Airlines

Fri 5/301:59 pmIAD - TYS

1 stop5h 15mAmerican Airlines

Deal found 4/29

$295

Best flights from Knoxville to Dulles Intl
Discover carefully curated flight deals from Knoxville to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 30, 2025.

Wed 7/169:55 amTYS - IAD

Nonstop1h 40mUnited Airlines

Sun 7/208:45 amIAD - TYS

Nonstop1h 42mUnited Airlines

Deal found 4/29

$194

Fri 6/1312:45 pmTYS - IAD

Nonstop1h 38mAllegiant Air

Fri 6/204:54 pmIAD - TYS

2 stops27h 45mAllegiant Air

Deal found 4/28

$201

Wed 5/215:45 amTYS - IAD

1 stop3h 29mDelta

Sun 5/256:00 amIAD - TYS

1 stop4h 23mDelta

Deal found 4/28

$204

Mon 6/211:06 amTYS - IAD

3 stops24h 20mMultiple Airlines

Fri 6/63:13 pmIAD - TYS

Nonstop1h 34mMultiple Airlines

Deal found 4/28

$226

Fri 5/237:54 pmTYS - IAD

1 stop4h 08mAmerican Airlines

Tue 5/271:59 pmIAD - TYS

1 stop5h 15mAmerican Airlines

Deal found 4/28

$260

Last-minute flights from Knoxville to Dulles Intl
Discover last-minute flight deals from Knoxville to Dulles Intl. Data last updated April 30, 2025 and is based on user searches.

Sun 5/412:34 pmTYS - IAD

1 stop24h 52mAllegiant Air

Thu 5/88:58 pmIAD - TYS

1 stop17h 29mAllegiant Air

Deal found 4/29

$286

Sun 5/412:34 pmTYS - IAD

2 stops32h 23mMultiple Airlines

Thu 5/88:58 pmIAD - TYS

1 stop17h 29mMultiple Airlines

Deal found 4/29

$353

Tue 5/69:55 amTYS - IAD

Nonstop1h 45mUnited Airlines

Tue 5/135:45 pmIAD - TYS

Nonstop1h 46mUnited Airlines

Deal found 4/29

$224

Tue 5/68:45 amTYS - IAD

1 stop4h 16mDelta

Tue 5/136:00 amIAD - TYS

1 stop3h 40mDelta

Deal found 4/29

$244

Tue 5/67:54 pmTYS - IAD

1 stop4h 08mAmerican Airlines

Tue 5/131:59 pmIAD - TYS

2 stops9h 27mAmerican Airlines

Deal found 4/29

$588

Thu 5/812:34 pmTYS - IAD

1 stop24h 52mAllegiant Air

Sun 5/118:58 pmIAD - TYS

1 stop17h 29mAllegiant Air

Deal found 4/28

$223

Thu 5/812:34 pmTYS - IAD

2 stops32h 23mMultiple Airlines

Sun 5/118:58 pmIAD - TYS

1 stop17h 29mMultiple Airlines

Deal found 4/28

$268

Wed 5/215:45 amTYS - IAD

1 stop3h 29mDelta

Sun 5/256:00 amIAD - TYS

1 stop4h 23mDelta

Deal found 4/28

$204

Fri 5/235:45 amTYS - IAD

Nonstop1h 41mUnited Airlines

Tue 5/275:10 pmIAD - TYS

1 stop5h 30mUnited Airlines

Deal found 4/28

$199

Fri 5/237:54 pmTYS - IAD

1 stop4h 08mAmerican Airlines

Tue 5/271:59 pmIAD - TYS

1 stop5h 15mAmerican Airlines

Deal found 4/28

$260

One-way flights from Knoxville to Dulles Intl
Search for one-way flight options from Knoxville to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated April 30, 2025.

Wed 7/25:45 amTYS - IAD

Nonstop1h 41mUnited Airlines

Deal found 4/29

$90

Mon 5/2612:45 pmTYS - IAD

Nonstop1h 38mAllegiant Air

Deal found 4/27

$100

Wed 7/27:53 pmTYS - IAD

1 stop4h 06mAmerican Airlines

Deal found 4/29

$126

Fri 6/136:00 amTYS - IAD

2 stops14h 37mMultiple Airlines

Deal found 4/28

$165

Thu 5/225:45 amTYS - IAD

1 stop3h 29mDelta

Deal found 4/29

$224

Cheapflights 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

KnoxvilleWashington, D.C.

TYS - IAD

TYSIAD

Knoxville McGhee Tyson

Wed 7/16

9:55 am-11:35 am

Nonstop1h 40m

Washington, D.C. Dulles Intl

Sun 7/20

8:45 am-10:27 am

Nonstop1h 42m

$194

KnoxvilleWashington, D.C.

TYS - IAD

TYSIAD

Knoxville McGhee Tyson

Wed 5/21

5:45 am-9:14 am

1 stop3h 29m

Washington, D.C. Dulles Intl

Wed 5/28

5:56 pm-11:51 pm

1 stop5h 55m

$204

KnoxvilleWashington, D.C.

TYS - IAD

TYSIAD

Knoxville McGhee Tyson

Wed 7/16

3:36 pm-8:35 am

1 stop16h 59m

Washington, D.C. Dulles Intl

Sun 7/20

9:05 pm-1:23 pm

1 stop16h 18m

$208

KnoxvilleWashington, D.C.

TYS - IAD

TYSIAD

Knoxville McGhee Tyson

Sun 6/8

9:34 pm-8:17 pm

2 stops22h 43m

Washington, D.C. Dulles Intl

Fri 6/13

3:13 pm-4:47 pm

Nonstop1h 34m

$245

KnoxvilleWashington, D.C.

TYS - IAD

TYSIAD

Knoxville McGhee Tyson

Wed 5/28

7:54 pm-12:02 am

1 stop4h 08m

Washington, D.C. Dulles Intl

Fri 5/30

1:59 pm-7:14 pm

1 stop5h 15m

$295

KnoxvilleWashington, D.C.

TYS - IAD

TYSIAD

Knoxville McGhee Tyson

Fri 5/23

12:45 pm-2:23 pm

Nonstop1h 38m

$53

KnoxvilleWashington, D.C.

TYS - IAD

TYSIAD

Knoxville McGhee Tyson

Wed 7/2

5:45 am-7:26 am

Nonstop1h 41m

$90

KnoxvilleWashington, D.C.

TYS - IAD

TYSIAD

Knoxville McGhee Tyson

Tue 5/20

6:51 am-1:22 pm

1 stop6h 31m

$126

KnoxvilleWashington, D.C.

TYS - IAD

TYSIAD

Knoxville McGhee Tyson

Fri 6/20

5:01 pm-8:52 pm

3 stops27h 51m

$221

KnoxvilleWashington, D.C.

TYS - IAD

TYSIAD

Knoxville McGhee Tyson

Fri 5/23

7:10 pm-12:28 am

1 stop5h 18m

$224

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Compare providers for flights from Knoxville to Dulles Intl

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Knoxville to Dulles Intl in April.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*2 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Knoxville-Washington, D.C. Dulles Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Knoxville-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Knoxville-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Knoxville-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Knoxville-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Knoxville to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Knoxville with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Knoxville to Washington, D.C. Dulles Intl Airport

How far ahead should I book a flight from Knoxville to Washington, D.C. Dulles Intl Airport?

To ensure you get the cheapest price possible for a flight from Knoxville to Washington, D.C. Dulles Intl Airport, you should look to book at least 69 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Knoxville to Washington, D.C. Dulles Intl Airport?

Currently, August is the cheapest month in which you can book a flight from Knoxville to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Knoxville to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $373). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from TYS to IAD?

A simple way to save on the total cost of your ticket is to fly from Knoxville to Washington, D.C. Dulles Intl Airport in the morning. If you’re flexible enough to do this you can expect to save up to 50% on your trip compared to booking a flight at noon.

Weekly flight availability from Knoxville to Washington, D.C. Dulles Intl Airport

The most flights from TYS to IAD are scheduled on a Tuesday (14 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (7 on average).

Rainfall in Dulles Intl by month

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

Temperature in Dulles Intl by month

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing Dulles Intl

Peruse reviews from past customers who have flown with Delta, United Airlines and Allegiant Air from Knoxville to Washington, D.C. to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,929 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta

8.0

Very good

7,929 reviews

Delta

8.0

Very good

7,929 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

United Airlines

7.4

Good

8,696 reviews

Delta

8.0

Very good

7,929 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Allegiant Air

7.3

Good

734 reviews

Delta

8.0

Very good

7,929 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,929 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

What airport do you fly from for flights from Knoxville to Washington, D.C. Dulles Intl?
If you book a flight to Washington, D.C. Dulles Intl from Knoxville, you will be flying from McGhee Tyson, which is the city’s only airport. Knoxville McGhee Tyson (TYS) is located 11.3 mi from the center of Knoxville. There are 10 flights from McGhee Tyson to Washington, D.C. Dulles Intl per day from 2 different airlines.
What are the cheapest airlines flying from Knoxville to Washington, D.C. Dulles Intl Airport round-trip?
Cheapflights users have booked flights from Knoxville to Washington, D.C. Dulles Intl Airport round-trip from $194. Other airlines that can offer you cheap pricing are Allegiant Air, from $201, and Delta, from $204. These flights start at 43% lower than the current average price 3 months from now.
What are the cheapest airlines to fly from Knoxville to Washington, D.C. Dulles Intl Airport one-way?
For one-way options, check prices for United Airlines. According to our data, you can fly for as low as $90. Users have also found prices from $100 and $126 on Allegiant Air and American Airlines, respectively.
What are the most reliable airlines from Knoxville to Washington, D.C. Dulles Intl Airport?
The top 3 most reliable airlines when flying from Knoxville to Washington, D.C. Dulles Intl Airport are Lufthansa (90%), Copa Airlines (89%) and CommutAir (88%).
What are the cheapest flights from Knoxville to Washington, D.C. Dulles Intl Airport?
Looking at all options, your cheapest flight can be booked for $114. While the most popular route (Knoxville McGhee Tyson - Washington, D.C. Dulles Intl) can be booked for $80 on average our data indicates $1,069 when flying from Knoxville to Washington, D.C. Dulles Intl Airport.
Can I find deals for flights from Knoxville to Dulles Intl that include hotel bookings?
Yes. In addition to deals on Knoxville to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Knoxville to Dulles Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Knoxville to Dulles Intl.
Can I find deals for business class flights from Knoxville to Dulles Intl?
Yes. Cheapflights offers flight deals from Knoxville to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Knoxville to Washington, D.C. Dulles Intl Airport?
Currently, August is the cheapest month in which you can book a flight from Knoxville to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Knoxville to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $373). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Top 2 airlines flying from Knoxville to Dulles Intl

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$208	Average$208	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$239	Average$347	FlexibilityNo cancel fee	On-time69%

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$53+ Cheap flights from Knoxville (TYS) to Dulles Intl (IAD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/23. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Knoxville to Dulles Intl with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Knoxville McGhee Tyson to Washington, D.C. Dulles Intl are usually found in January or September, booked 70 days in advance, depart on a Wednesday or Thursday and return on a Monday

Cheap flight deals from Knoxville to Dulles Intl

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from Knoxville to Dulles Intl

Cheapest flights from Knoxville to Dulles IntlExplore the most affordable flight options available from Knoxville to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 30, 2025.

Explore the most affordable flight options available from Knoxville to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 30, 2025.

Cheapflights 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.

Compare providers for flights from Knoxville to Dulles Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Knoxville to Dulles Intl in April.

Best time to book a flight from Knoxville to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Knoxville with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Knoxville to Washington, D.C. Dulles Intl Airport

How far ahead should I book a flight from Knoxville to Washington, D.C. Dulles Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Knoxville to Dulles Intl. Price data was last updated on April 25, 2025.

What is the cheapest month to book a flight from Knoxville to Washington, D.C. Dulles Intl Airport?

What is the cheapest time of day to fly from TYS to IAD?

Find hourly flight availability from Knoxville to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 30, 2025.

Weekly flight availability from Knoxville to Washington, D.C. Dulles Intl Airport

Rainfall in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.

Temperature in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average temperature totals by month.

Reviews of airlines servicing Dulles Intl

Peruse reviews from past customers who have flown with Delta, United Airlines and Allegiant Air from Knoxville to Washington, D.C. to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Knoxville to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly from for flights from Knoxville to Washington, D.C. Dulles Intl?

What are the cheapest airlines flying from Knoxville to Washington, D.C. Dulles Intl Airport round-trip?

What are the cheapest airlines to fly from Knoxville to Washington, D.C. Dulles Intl Airport one-way?

What are the most reliable airlines from Knoxville to Washington, D.C. Dulles Intl Airport?

What are the cheapest flights from Knoxville to Washington, D.C. Dulles Intl Airport?

Can I find deals for flights from Knoxville to Dulles Intl that include hotel bookings?

How can I find direct flights from Knoxville to Dulles Intl?

Can I find deals for business class flights from Knoxville to Dulles Intl?

What is the cheapest month to book a flight from Knoxville to Washington, D.C. Dulles Intl Airport?

Traveling to a place near Knoxville?

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Alternative routes for Knoxville to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from Knoxville to Dulles Intl

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Cheapest flights from Knoxville to Dulles Intl
Explore the most affordable flight options available from Knoxville to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 30, 2025.