Cheap flights from Washington, D.C. Dulles Intl Airport to Knoxville from $40
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 7/25. 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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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
United Airlines flights from Washington, D.C. Dulles Intl Airport to Knoxville
Our best United Airlines deals on Washington, D.C. Dulles Intl Airport to Knoxville flight tickets
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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 May is, on average, the cheapest month to fly to Knoxville from Washington, D.C. Dulles Intl Airport, with most prices found around $168. If you aren’t able to travel during the month of May, then book flights to Knoxville from Washington, D.C. Dulles Intl Airport during August instead. Flights to Knoxville in August, while not as cheap as those in May, still average around $289.
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 Saturday. Travelers who choose to depart for Knoxville on a Saturday will often find tickets for as low as $298. When flying out on a Sunday, 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 $357.
What is the cheapest time of day to depart on your flight to Knoxville?
In the afternoon 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 $281. Flying to Knoxville in the afternoon 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 at noon when prices are around $342.
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 weeks ahead of your departure date. In general, you can expect to find flights to Knoxville for around $360 when searching 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 $104 on momondo.
What cabin class options are available on Washington, D.C. Dulles Intl to Knoxville McGhee Tyson flights?
There are 2 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.
What is the cheapest airline that flies from Washington, D.C. Dulles Intl to Knoxville McGhee Tyson?
Allegiant Air, United Airlines, and Delta are the most popular carriers operating from Washington, D.C. Dulles Intl to Knoxville McGhee Tyson
What airlines fly to Knoxville?
United Airlines, American Airlines and Allegiant Air are the top three most popular airlines that fly to Knoxville from Washington, D.C. Dulles Intl Airport according to our data. United Airlines is the first choice among our users, with 60% of people opting to fly with this airline when traveling to Knoxville. Keep in mind that there are 4 different airlines that fly to Knoxville on a routine basis, so you have a few additional options to choose from.
How many flights depart from Washington, D.C. Dulles Intl Airport to Knoxville on average per day?
The number of flights available between Washington, D.C. Dulles Intl Airport and Knoxville is 16 per day as of June 2025. The most frequent departure time is 6:00PM, with 55% of daily flights leaving in the evening.
How many flights depart from Washington, D.C. Dulles Intl Airport to Knoxville on average per week?
As of June 2025, there are 114 flights per week flying from Washington, D.C. Dulles Intl Airport to Knoxville. The most common day of the week flights depart is Mon, with 15% of flights taking off on this day.
When to book flights from Washington, D.C. Dulles Intl Airport to Knoxville
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
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?
As of June 2025, there are 2 operators available to choose from 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?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Washington, D.C. Dulles Intl Airport to Knoxville is Embraer ERJ-135 / ERJ-140 / ERJ-145 (38.55% of total bookings). The next most popular plane models are Canadair (Bombardier) Regional Jet 700 (19.77%), Airbus A320-100/200 (16.24%), and Embraer 175 (13.31%).
What is the most popular airline from Washington, D.C. Dulles Intl Airport to Knoxville?
momondo data reveals that the most frequently booked airline on the route from Washington, D.C. Dulles Intl Airport to Knoxville is United Airlines, representing 88% of all bookings. The subsequent popular airline is Allegiant Air at 12%.
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 | ||
|---|---|---|---|---|---|
| PriceFrom $37 | Free Cancellation | Rating 7.3 722 reviews | |||
| PriceFrom $238 | Free Cancellation | Rating 7.4 8,810 reviews |
United Airlines Flights From Washington, D.C. Dulles Intl Airport to Knoxville
United Airlines operates around 28 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 $380, but momondo users have found United Airlines deals from Washington, D.C. Dulles Intl Airport to Knoxville from as low as $238 round-trip. United Airlines has been scored 7.4/10 in 8,810 reviews.
Allegiant Air Flights From Washington, D.C. Dulles Intl Airport to Knoxville
Allegiant Air is also a popular choice for this route. Allegiant Air flight deals for Washington, D.C. Dulles Intl Airport to Knoxville start from as low as $37 round-trip, depending on your selected dates, with average Allegiant Air deals seen on momondo around $80. Allegiant Air operates 2 flights to Knoxville from Washington, D.C. Dulles Intl Airport in an average week. Users have rated it 7.3/10 across 722 reviews.
Traveling to a place near Knoxville?
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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.