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$124+ Cheap flights from Dulles Intl (IAD) to Knoxville (TYS)

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 3/28. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — TYS
Jan 7 — Jan 141
Tue 1/7
Tue 1/14
1 adult, Economy
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The best prices from Washington, D.C. Dulles Intl to Knoxville McGhee Tyson are usually found in February or August, booked 67 days in advance, depart on a Tuesday or Monday and return on a Friday

Cheap flight deals from Dulles Intl to Knoxville

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Knoxville (TYS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 2, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$261
(United Airlines)

One-way from

$124
(Mytrip)

Popular in

December

Cheapest in

February

Average price

$313
Provider with most accurate pricing for Washington, D.C. Dulles Intl-Knoxville McGhee Tyson flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Knoxville McGhee Tyson flights.
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From Washington, D.C. Dulles Intl to Knoxville McGhee Tyson
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One-way flight from Washington, D.C. Dulles Intl to Knoxville McGhee Tyson
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High demand for flights, 9% potential price rise
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Best time to find cheap flights, 2% potential price drop
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Average for round-trip flights in January 2025
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Find flight deals from Dulles Intl to Knoxville

Cheapest flights from Dulles Intl to Knoxville
Explore the most affordable flight options available from Dulles Intl to Knoxville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 2, 2025.

This United Airlines deal was found by Cheapflights users on 1/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/1312:55 pmIAD - TYS
Nonstop1h 44mUnited Airlines
Wed 2/192:40 pmTYS - IAD
Nonstop1h 41mUnited Airlines
Deal found 1/2$261
This KAYAK deal was found by Cheapflights users on 1/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/36:00 amIAD - TYS
1 stop6h 14mDelta
Wed 2/57:25 amTYS - IAD
1 stop4h 23mDelta
Deal found 1/2$276
This American Airlines deal was found by Cheapflights users on 1/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/231:53 pmIAD - TYS
1 stop5h 42mAmerican Airlines
Sun 1/268:05 pmTYS - IAD
1 stop3h 53mAmerican Airlines
Deal found 1/1$280
This Mytrip deal was found by Cheapflights users on 1/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/1410:07 amIAD - TYS
1 stop12h 48mAllegiant Air
Sun 3/166:44 pmTYS - IAD
1 stop14h 33mAllegiant Air
Deal found 1/2$325
This Mytrip deal was found by Cheapflights users on 1/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/2111:57 amIAD - TYS
1 stop11h 03mMultiple Airlines
Sun 3/238:00 amTYS - IAD
3 stops27h 20mMultiple Airlines
Deal found 1/2$512

Find flights from Dulles Intl to Knoxville within your budget

Customize your flight search to find flights from Dulles Intl to Knoxville that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 2, 2025.

Fly from

Any airport

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Route

Depart

Return

Price

Washington, D.C.Knoxville

IAD - TYS

IADTYS

Washington, D.C. Dulles Intl

Thu 2/13

12:55 pm-2:39 pm

Nonstop1h 44m

Knoxville McGhee Tyson

Wed 2/19

2:40 pm-4:21 pm

Nonstop1h 41m

$261

Washington, D.C.Knoxville

IAD - TYS

IADTYS

Washington, D.C. Dulles Intl

Mon 2/3

6:00 am-12:14 pm

1 stop6h 14m

Knoxville McGhee Tyson

Thu 2/6

5:45 am-11:57 am

1 stop6h 12m

$276

Washington, D.C.Knoxville

IAD - TYS

IADTYS

Washington, D.C. Dulles Intl

Thu 1/23

1:53 pm-7:35 pm

1 stop5h 42m

Knoxville McGhee Tyson

Sun 1/26

8:05 pm-11:58 pm

1 stop3h 53m

$280

Washington, D.C.Knoxville

IAD - TYS

IADTYS

Washington, D.C. Dulles Intl

Fri 3/14

10:07 am-10:55 pm

1 stop12h 48m

Knoxville McGhee Tyson

Sun 3/16

6:44 pm-9:17 am

1 stop14h 33m

$325

Washington, D.C.Knoxville

IAD - TYS

IADTYS

Washington, D.C. Dulles Intl

Fri 3/28

11:57 am-11:00 pm

1 stop11h 03m

Knoxville McGhee Tyson

Sun 3/30

8:00 am-11:20 am

3 stops27h 20m

$389

Washington, D.C.Knoxville

IAD - TYS

IADTYS

Washington, D.C. Dulles Intl

Fri 3/28

11:57 am-11:00 pm

1 stop11h 03m

$124

Washington, D.C.Knoxville

IAD - TYS

IADTYS

Washington, D.C. Dulles Intl

Sat 5/17

8:15 am-9:59 am

Nonstop1h 44m

$130

Washington, D.C.Knoxville

IAD - TYS

IADTYS

Washington, D.C. Dulles Intl

Sat 3/15

6:00 am-9:39 am

1 stop3h 39m

$141

Washington, D.C.Knoxville

IAD - TYS

IADTYS

Washington, D.C. Dulles Intl

Mon 1/13

8:30 am-8:09 am

2 stops23h 39m

$164

Washington, D.C.Knoxville

IAD - TYS

IADTYS

Washington, D.C. Dulles Intl

Fri 1/10

5:00 am-10:36 am

1 stop5h 36m

$261

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/2

Compare providers for flights from Dulles Intl to Knoxville

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 Dulles Intl to Knoxville in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust 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 Washington, D.C. Dulles Intl Airport-Knoxville flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Dulles Intl Airport-Knoxville flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Knoxville flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Knoxville flights, Cheapflights users trust FlightHub the most. FlightHub 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 Washington, D.C. Dulles Intl Airport-Knoxville 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 Dulles Intl to Knoxville

Have a flexible travel schedule? Discover the best time to fly to Knoxville from Dulles Intl 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.

Travel insights for flights from Dulles Intl to Knoxville

Get recent, data-driven insights about flights from Dulles Intl to Knoxville including ideal travel times, pricing trends, and more.

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

Use this chart to determine the optimal time to book a round-trip flight from Dulles Intl to Knoxville. Price data was last updated on December 27, 2024.

The price you pay for your flight from Washington, D.C. Dulles Intl Airport to Knoxville may vary depending on when you book. For the best chance of a lower fare, look to book 67 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Knoxville (average of $303). Flying from Washington, D.C. Dulles Intl Airport to Knoxville in March is currently the most expensive (average of $376). 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 IAD to TYS?

Find hourly flight availability from Dulles Intl to Knoxville. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 2, 2025.

It’s typically best to fly out from Washington, D.C. Dulles Intl Airport to Knoxville in the evening. Doing so could potentially save you 30% on the flight price compared to flying in the afternoon, which is usually more expensive.

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

Use this chart to determine the cheapest time to fly round-trip from Dulles Intl to Knoxville. Price data was last updated on December 16, 2024.

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

Rainfall in Knoxville by month

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

In terms of precipitation, rainfall in Knoxville ranges from 2.7 - 4.8 inches per month. March is typically the wettest month, when rainfall can reach 4.8 in. October is typically the driest time to visit Knoxville when rainfall is around 2.7 in.

Temperature in Knoxville by month

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

If weather is an important factor for your trip to Knoxville, 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 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

Reviews of airlines servicing Knoxville

Get insights into the airlines that provide service to Knoxville. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Knoxville. Reviews last updated January 2, 2025.
Get a feel of what it's like to fly with United Airlines, Delta and American Airlines from Washington, D.C. to Knoxville by reading reviews from past customers. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,536 reviews

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Crew

8.6

Food

7.3

Overall

8.0

Reviews

1 / 10

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

Delta
8.0
Very good
8,536 reviews
Delta
8.0
Very good
8,536 reviews

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Crew

8.6

Food

7.3

Overall

8.0

Reviews

1 / 10

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

United Airlines
7.4
Good
8,968 reviews
Delta
8.0
Very good
8,536 reviews

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Crew

8.6

Food

7.3

Overall

8.0

Reviews

1 / 10

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

Allegiant Air
7.4
Good
806 reviews
Delta
8.0
Very good
8,536 reviews

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Crew

8.6

Food

7.3

Overall

8.0

Reviews

1 / 10

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
8,536 reviews

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Crew

8.6

Food

7.3

Overall

8.0

Reviews

1 / 10

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

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Knoxville. 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 into for flights to Knoxville from Washington, D.C. Dulles Intl?

    Located just 11.3 mi from the city center, Knoxville McGhee Tyson is the airport most travelers will use when flying to Knoxville from Washington, D.C. Dulles Intl. Booking flights from Washington, D.C. Dulles Intl to McGhee Tyson (TYS) should be relatively easy as there are 12 daily inbound flights from Washington, D.C. Dulles Intl from 1 airline.

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

    According to our current data, United Airlines ($261), Delta ($276), and American Airlines ($280) offers the cheapest pricing from Washington, D.C. Dulles Intl Airport to Knoxville. Users have found that United Airlines is 33% cheaper than the other options available to this destination.

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

    To fly one-way, consider booking your trip with Allegiant Air, which is currently one of the cheapest options available, starting at $124. Delta flights start at $141 while deals on United Airlines start at $161 one-way.

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

    No one likes to see their flight delayed. When booking a flight from Washington, D.C. Dulles Intl Airport to Knoxville consider choosing Lufthansa (87%), Air Canada (85%) or Avianca (83%) as they are the most reliable in getting you off to your destination on time.

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

    On average you can expect to pay $292 for a flight from Washington, D.C. Dulles Intl Airport to Knoxville. The cheapest flight overall is $78 while the most popular route, (Washington, D.C. Dulles Intl - Knoxville McGhee Tyson) is currently priced at $174.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Dulles Intl to Knoxville 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 Washington, D.C. Dulles Intl Airport to Knoxville?

    Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Knoxville (average of $303). Flying from Washington, D.C. Dulles Intl Airport to Knoxville in March is currently the most expensive (average of $376). 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 airline flying from Dulles Intl to Knoxville

Discover the top airline that operate flights from Dulles Intl to Knoxville. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$231Average$381FlexibilityNo cancel feeOn-time69%
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