Cheap flights from Washington, D.C. to Knoxville from $46
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. 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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United Airlines flights from Washington, D.C. to Knoxville
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Allegiant Air flights from Washington, D.C. to Knoxville
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How to get the cheapest flight ticket from Washington, D.C. 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 typical price of a round-trip flight between Washington, D.C. and Knoxville?
What is the cheapest month to fly to Knoxville?
The month of June is, on average, the cheapest month to fly to Knoxville from Washington, D.C., with most prices found around $271. If you aren’t able to travel during the month of June, then book flights to Knoxville from Washington, D.C. during January instead. Flights to Knoxville in January, while not as cheap as those in June, still average around $278.
What is the cheapest day to depart on your flight to Knoxville?
The cheapest day to depart from Washington, D.C. to Knoxville is on a Saturday. Travelers who choose to depart for Knoxville on a Saturday will often find tickets for as low as $300. 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. to Knoxville for around $355.
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. to Knoxville when you can find flight prices for as low as $287. 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. to Knoxville McGhee Tyson flight route?
Fly from Washington, D.C. Dulles Intl to Knoxville McGhee Tyson for the best Washington, D.C. - 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. when booking 11 weeks ahead of your departure date. In general, you can expect to find flights to Knoxville for around $330 when searching 11 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Knoxville from Washington, D.C. for as low as $264 on momondo.
What cabin class options are available on Washington, D.C. to Knoxville McGhee Tyson flights?
There are 4 cabin classes available to choose from on Washington, D.C. 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.
Can stopping save me money on Washington, D.C. to Knoxville flights?
No. A direct flight is the cheapest option for a flight between Washington, D.C. to Knoxville.
How have Washington, D.C. to Knoxville flight prices changed over time?
As of June 2025, prices for Washington, D.C. to Knoxville flights are approximately 54% cheaper when compared to flights at the same time last year.
What is the cheapest airline that flies from Washington, D.C. to Knoxville McGhee Tyson?
Allegiant Air, American Airlines, and Delta are the most popular carriers operating from Washington, D.C. to Knoxville McGhee Tyson
What airlines fly to Knoxville?
American Airlines, Delta and United Airlines are the top three most popular airlines that fly to Knoxville from Washington, D.C. according to our data. American Airlines is the first choice among our users, with 63% 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. to Knoxville on average per day?
The number of flights available between Washington, D.C. and Knoxville is 19 per day as of June 2025. The most frequent departure time is 6:00PM, with 54% of daily flights leaving in the evening.
How many flights depart from Washington, D.C. to Knoxville on average per week?
136 flights are operational weekly from Washington, D.C. to Knoxville as of June 2025. The most popular departure day for this route is Mon, with 15% of flights per week taking off on this day.
When to book flights from Washington, D.C. to Knoxville
Cheap Washington, D.C. to Knoxville (WAS to TYS) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to Knoxville
How far is Washington, D.C. to Knoxville McGhee Tyson by plane?
A flight from Washington, D.C. to Knoxville McGhee Tyson will travel around 428.6 mi. Typically, this will take 1h 34m by plane in normal conditions.
When did momondo last update prices for flights from Washington, D.C. to Knoxville McGhee Tyson Airport?
Prices for flights from Washington, D.C. to Knoxville McGhee Tyson Airport are updated daily.
How many operators does momondo search for flights from Washington, D.C. to Knoxville McGhee Tyson Airport?
There are 4 operators available for flights from Washington, D.C. to Knoxville McGhee Tyson Airport as of June 2025.
How old do you have to be to fly from Washington, D.C. to Knoxville McGhee Tyson Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. to Knoxville McGhee Tyson Airport.
What documentation or ID do you need to fly to Knoxville McGhee Tyson Airport?
The travel and health documents you'll need for your trip to Knoxville McGhee Tyson Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Knoxville McGhee Tyson Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Washington, D.C. to Knoxville?
momondo data reveals that the most frequently booked plane model on the route from Washington, D.C. to Knoxville is Embraer ERJ-135 / ERJ-140 / ERJ-145, representing 29.98% of all bookings. The subsequent popular models are Canadair (Bombardier) Regional Jet 700 at 26.31%, Canadair (Bombardier) Regional Jet 900 at 16.71%, and Embraer 175 at 15.30%.
What is the most popular airline from Washington, D.C. to Knoxville?
momondo data reveals that the most frequently booked airline on the route from Washington, D.C. to Knoxville is American Airlines, representing 62% of all bookings. The subsequent popular airlines are United Airlines at 31%, Allegiant Air at 4%, and Delta at 2%.
Best airlines flying from Washington, D.C. to Knoxville
Compare and see reviews for airlines that fly from Washington, D.C. to Knoxville with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $37 | Free Cancellation | Rating 7.3 725 reviews | |||
| PriceFrom $198 | Free Cancellation | Rating 8.0 7,946 reviews | |||
| PriceFrom $208 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $219 | Free Cancellation | Rating 7.4 8,790 reviews |
United Airlines Flights From Washington, D.C. to Knoxville
United Airlines flies from Washington, D.C. to Knoxville around 28 times per week, with 8,790 momondo users rating the airline 7.4/10. The cheapest United Airlines deal from Washington, D.C. to Knoxville in the last 72 hours was $219 (round-trip), much lower than the average airfare cost of $364 for United Airlines flights on this route.
American Airlines Flights From Washington, D.C. to Knoxville
$208 is the best American Airlines flight deal from Washington, D.C. to Knoxville found on momondo over the last 72 hours. The average American Airlines ticket price found was closer to $346, however, with flight time and availability significantly affecting the price. American Airlines (7.2/10 from 10,000 user reviews) flies into Knoxville from Washington, D.C. 18 times in an average week so prices can vary.
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Why should I use momondo to find a flight deal from Washington, D.C. to Knoxville?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Washington, D.C. to Knoxville. momondo saves you time and could save you money on your trip.
Can I find flights from Washington, D.C. to Knoxville with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to Knoxville from Washington, D.C. with this policy.
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?
Of course. momondo tracks the price of Washington, D.C. to Knoxville flights. All you need is a valid email address and we will do the rest; it is that quick and easy.