TYS

$35 Find Cheap Flights to Knoxville

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Knoxville departing on 12/18. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Knoxville

 
These are the airlines KAYAK users have selected most often from within our search results for flights to Knoxville
These are the airlines KAYAK users have selected most often from within our search results for flights to Knoxville
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Everything you should know

Cheapest round-trip
$84
Overall average: $396
Allegiant Air
Sun 12/14Thu 12/18
IAD - TYS • Non-stop
Cheapest one-way
$35
Typical prices: $83-$299
Allegiant Air
Thu 12/18
IAD - TYS • Non-stop
Our travelers' advice
AI-powered summary based on content written by travel experts. AI can make mistakes.
Delta's Comfort Plus offers extra legroom and free Wi-Fi.
Use the Allegiant app for mobile boarding passes.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
American Airlines
Most flights • 291 per week
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Top routes
IAD-TYS
Cheapest
SFB-TYS
Most popular
Insights
Insights
Insights
Insights
When to travel
January
Cheapest • 30% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
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+1
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We hope you love your trip to Knoxville!
Flight Deals
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Flight Deals

Cheap Flights to Knoxville

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights to Knoxville that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals to Knoxville

Sun, Dec 14 - Thu, Dec 18
Allegiant Air Logo
7:57 pm - 9:37 pm
IAD
-
TYS
1h 40mnonstop
Allegiant Air Logo
5:42 pm - 7:26 pm
TYS
-
IAD
1h 44mnonstop
$84Allegiant Air
Wed, Dec 31 - Sat, Jan 3
Allegiant Air Logo
2:35 pm - 4:15 pm
IAD
-
TYS
1h 40mnonstop
Allegiant Air Logo
2:23 pm - 4:07 pm
TYS
-
IAD
1h 44mnonstop
$86Allegiant Air
Mon, Feb 9 - Thu, Feb 12
Frontier Logo
7:00 am - 3:35 pm
DFW
-
TYS
7h 35m1 stop
Frontier Logo
5:35 pm - 12:09 am
TYS
-
DFW
7h 34m1 stop
$145Frontier
Thu, Feb 5 - Mon, Feb 9
Frontier Logo
3:11 pm - 3:30 pm
IAH
-
TYS
23h 19m1 stop
Frontier Logo
4:30 pm - 10:37 am
TYS
-
IAH
19h 07m1 stop
$157Frontier
Thu, Feb 12 - Sat, Feb 14
American Airlines Logo
8:48 am - 10:46 am
DCA
-
TYS
1h 58mnonstop
American Airlines Logo
6:00 am - 7:46 am
TYS
-
DCA
1h 46mnonstop
$164American Airlines
Thu, Feb 5 - Sun, Feb 8
American Airlines Logo
8:47 am - 10:49 am
DCA
-
TYS
2h 02mnonstop
American Airlines Logo
2:17 pm - 3:59 pm
TYS
-
DCA
1h 42mnonstop
$172American Airlines
Wed, Jan 7 - Sat, Jan 10
Delta Logo
5:25 am - 10:15 am
DFW
-
TYS
3h 50m1 stop
Delta Logo
7:27 am - 2:38 pm
TYS
-
DFW
8h 11m1 stop
$197Delta
Wed, Jan 7 - Thu, Jan 8
Delta Logo
8:15 am - 1:50 pm
DFW
-
TYS
4h 35m1 stop
Delta Logo
7:30 am - 2:48 pm
TYS
-
DFW
8h 18m1 stop
$208Delta
Thu, Jan 8 - Mon, Jan 12
United Airlines Logo
10:30 am - 1:50 pm
IAH
-
TYS
2h 20mnonstop
United Airlines Logo
9:05 am - 11:01 am
TYS
-
IAH
2h 56mnonstop
$222United Airlines
Thu, Feb 12 - Sun, Feb 15
United Airlines Logo
6:28 pm - 9:10 pm
ORD
-
TYS
1h 42mnonstop
United Airlines Logo
6:45 am - 7:47 am
TYS
-
ORD
2h 02mnonstop
$223United Airlines
Booking Insights

KAYAK's insights & trends for flights to Knoxville

Get data-powered insights and trends for flights to Knoxville to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest flight to Knoxville?

These are the best round-trip prices found by users searching on KAYAK in the last 72 hours.

In the last 3 days, the cheapest flight deal to Knoxville was found on the route from Washington, D.C., at $35 one-way and $84 return. The most popular connection is from Orlando to Knoxville and KAYAK users have found round-trip deals for as low as $97 in the last 3 days.

How much is a flight to Knoxville?

The average and cheapest price for all round-trip flights to Knoxville from each origin found by users searching on KAYAK in the last month.

On average, a flight to Knoxville costs $214. The cheapest price found on KAYAK in the last 2 weeks cost $38 and departed from Memphis. The most popular routes on KAYAK are Washington, D.C. to Knoxville which costs $216 on average, and Orlando to Knoxville, which costs $136 on average.

See prices from:

What is the cheapest month to fly to Knoxville?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to Knoxville, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights to Knoxville is August, where tickets cost $107 on average for one-way flights. On the other hand, the most expensive months are March and November, where the average cost of tickets from the United States is $271 and $248 respectively. For return trips, the best month to travel is January with an average price of $231.

What is a good deal for flights to Knoxville?

If you’re looking for cheap airfare to Knoxville, 25% of our users found tickets to Knoxville for the following prices or less: From Sarasota $73 one-way - $93 round-trip, from Orlando Sanford Intl Airport $74 one-way - $110 round-trip, from Fort Lauderdale $89 one-way - $168 round-trip.

Expert advice

Expert advice for your flight to Knoxville

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
American Airlines

Basic Economy has Group 9 boarding and no free checked bags; consider Main Cabin for more flexibility.


Main Cabin Extra offers early boarding and complimentary drinks for a small fee.

Allegiant Air

Consider the Bonus bundle for a carry-on, seat selection, and ticket change flexibility.


Use the Allegiant app for mobile boarding passes to avoid extra charges at the airport.

Delta

Delta's Comfort Plus offers up to three inches more legroom than Main Cabin seats.


Delta offers free Wi-Fi for SkyMiles members on domestic flights.

United Airlines

United's Economy Plus offers up to six inches more legroom than standard economy seats.


Consider Priority Boarding to ensure overhead bin space for your carry-on.

Frontier

Frontier's Premium Bundle includes priority boarding and extra legroom for a small fee.


Avoid Basic Fare if you need a carry-on; consider Economy Bundle for more flexibility.

Alaska Airlines

Alaska's Premium Class offers priority boarding and complimentary drinks on flights over 350 miles.


Alaska Airlines' 20-minute bag guarantee offers bonus miles if bags are delayed.

Our travel experts
Harriet Baskas

Harriet Baskas

Expert on American Airlines and Alaska Airlines

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
Daniel Scheffler

Daniel Scheffler

Expert on Allegiant Air

Daniel Scheffler

Daniel Scheffler

Daniel Scheffler is a travel writer, podcaster, and producer. Born in Africa, bred in Europe and now living in America he has traveled to 140 countries (and all 50 U.S. states). Plus he has stayed at over 2500 hotels across the globe. His original shows Everywhere and Without Maps (available on Spotify) showcase his beliefs, travel is about humanity and sharing that beauty. And thus it reminds you that you shouldn’t believe everything you think.

Read more
Stefanie Waldek

Stefanie Waldek

Expert on Delta, United Airlines and Frontier

Stefanie Waldek

Stefanie Waldek

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Read more

Good to know - Book Cheap Knoxville Plane Tickets

Low seasonJanuary
Cheapest flight$35
Best time to beat the crowds but there is an average 15% increase in price.
Most popular time to fly and prices are also 14% lower on average.
Flight from Washington Dulles Airport to Knoxville

When to book flights to Knoxville

Are your dates flexible? Find out the best times to travel to Knoxville based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. The information is for flights to Knoxville based on your location. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs - booking Knoxville flights

  • What is the cheapest flight to Knoxville?

    In the last 3 days, the cheapest flight deal to Knoxville was found on the route from Washington, D.C., at $35 one-way and $84 return. The most popular connection is from Orlando to Knoxville and KAYAK users have found round-trip deals for as low as $97 in the last 3 days.

  • How far is Knoxville McGhee Tyson Airport from central Knoxville?

    The distance between Knoxville McGhee Tyson Airport and downtown Knoxville is 11 miles.

  • What is the name of Knoxville’s airport?

    Knoxville is served by Knoxville McGhee Tyson Airport, also commonly referred to as Mc Ghee Tyson or McGhee Tyson. The airport code is TYS.

  • How much is a flight to Knoxville?

    On average, a flight to Knoxville costs $214. The cheapest price found on KAYAK in the last 2 weeks cost $38 and departed from Memphis Airport.

  • What is the cheapest day to fly to Knoxville?

    Based on KAYAK data, the cheapest day to fly to Knoxville is Friday where tickets can be as cheap as $307. On the other hand, the most expensive day to fly is Sunday, where prices are $381 on average.

  • How does KAYAK find such low prices on flights to Knoxville?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to Knoxville.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to Knoxville?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Knoxville is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights to Knoxville?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Knoxville with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to Knoxville?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Knoxville up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Knoxville?

    The cheapest time of day to fly to Knoxville is generally in the morning, when flights cost $282 on average. The most expensive time of day to fly to Knoxville is generally at night, which is peak travel time and where the average cost of a ticket is $359.

Top tips for finding cheap flights to Knoxville

  • Looking for cheap airfare to Knoxville? 25% of our users found round-trip tickets to Knoxville for the following prices or less: From Jacksonville $80, from Phoenix Sky Harbor Intl $192, from Chicago O'Hare Intl $229
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Knoxville flight deals.

Reviews of the top 5 airlines flying to Knoxville

 
See real verified KAYAK customer reviews for airlines flying to Knoxville. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from the United States to Knoxville. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to Knoxville? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8011 reviews
7.3Food
7.9Comfort
8.1Boarding
8.5Crew
7.9Entertainment
Airline reviews

The food is terrible. The staff is wonderful. Comfort is good.

10.0 ExcellentRonda, Dec 2025
JAX - JFK
Read more Delta reviews

The food is terrible. The staff is wonderful. Comfort is good.

Left on time, a bit delayed due to headwinds most of the trip.

I fly Delta all the time, have Platinum Medallion status. But this route seems to have major problems with delays and seems to never leave on time! Have only taken it twice in the last two weeks, and each time it had delays of more than 1 hour... very disappointed!!!!

Good seats in Main cabin, excellent service and excellent landing

My flight was cancelled with no explanation after I had already cleared security. I was given 4 options to rebook, only one being non-stop like I had paid for. I grabbed it. It was 4 plus hours later and then took off even later. Biggest complaint is that I booked early and had an aisle seat. They gave me a "window" seat in front of the exit row, so the seat did not decline. I weigh all of 103 #s and it was tight for me! For what I paid, I feel I was kind of ripped off. I think they should have given me the empty comfort seat for the inconvenience. There was no apology nor any explanation as to why the flight was cancelled. My guess is it benefitted Delta in some way.

Very smooth, on-time, and pleasantly uneventful flight. The team at the gate and on board were professional and genuinely courteous. The pilot kept us well updated throughout, and both takeoff and landing were steady and enjoyable without any drama. Just a good, solid flight. Thank you! 💗

Staff was exceptional! Everyone was kind, professional and friendly making the trip very pleasant. Thank you!

No lunch on a x-country flight scheduled for 10:50 am departure, arrived 5+ hrs later. That requires a black box label before you pay for the tickets. Worst, when I checked in online, it's specifically said that lunch was served on his flight for economy Plus passengers.

We had a lot of really rough weather but that was not Delta's fault. Pilot was amazing.

First, Delta needs more flights to/from Miami. Second, a 1000pm leaving at 1230pm is unacceptable from their biggest airport world hub. Another aircraft could have been used such as the aircraft scheduled to be used in the morning for that exact same route. Yes, I did get me there but the lack of sleep the next day didn't help me enjoy my entire trip since I was busy with activities during the weekend. This can be and is expected from Spirit (going bankrupt) and Frontier (despite they're nickel and dimers). But from Delta's World Hub? That's totally unacceptable!

United have really come back. Airport and boarding process is clear and good, app and information also very good

Flight was delayed 8 times. We were sitting at the airport for 14 hours. We got 2 hours of sleep (if that) on what was not meant to be a red-eye.

After a delay at the gate, C3, at Ohare on Sunday, I left my Blk ski coat on the bench at the gate, lost! Please review my lob claim, thx.

Very bad! They kept delaying my flight and wouldn’t do anything about it

They brought an empty plane to the gate. Then a flight delay was announced for maintenance and waiting on a part. I was then put on a flight to San Francisco instead with a connecting flight to my final destination. Arrived at my final destination 2 hours late.

The only downside was my cell phone charger wouldn’t work in the charging port but everyone else’s would work in them all. My cell phone cable works fine in my hotel room in Frankfurt.

Flight team stood out for perzonal attention, kindness at bright cheery attitudes at 8am. Very helpful.

Ot was overall fine. Left on time and had basic snacks. Weather was finicky but that’s not the airlines fault.

Very thoughtful flight attendant offered me water immediately since I had run to make my connection.

Door to door, the crew and staff were amazing. It was a stressful travel day with delays, but they were focused on customers and doing what they could to get us to our destinations.

Waaay too small plane. They also need to up the size of the overhead bins. I would love to keep me 3k with of camera equipment in my hard case baggahe instead of it being thrown into the belly of the plane

Attendants were pleasant and the flight was smooth and relaxed.

A little late at the start but all worked out well.

It was fine. No drinks nor snacks offered though. I thought that was unusual.

I liked the humor of the captain and crew on the flight from Flagstaff to Dallas. They were humorous.

AA delayed the flight for 3 hours and 50 minutes, but delayed the last 2 hours, 30 minutes at a time, so if we knew before, could have stayed at home and worked instead of being at the airport wasting time... The plane's crew was excellent, not their fault.

After arriving in Dallas, the aircraft taxied for an unusually long time and was unable to park at the gate, which caused a significant delay and made me miss my connecting flight. I then had to wait in a very long line to be rebooked, and I was told that no hotel or meal accommodations would be provided. What is even more unacceptable is that my luggage was mishandled and has still not been located. My suitcase contains important medications that I urgently need, and I have been unable to access them due to the airline’s mishandling. This situation has caused me considerable stress and inconvenience, and I need this issue to be resolved immediately.

RIC Staff was not enough. Elderly passengers had to wait 30 minutes to deplane, so we could board and still had to walk as no chairs were provided. And, passenger in front of my seat assignment rammed seat against my legs entire flight time. Was mildly bruised and left thigh still sore.

Liked that it was on time. Staff professional and friendly.

Things were delayed a little. But that didn’t affect my plans. It was fine. I was surprised it was so full thanksgiving day. The crew were friendly and professional.

Check in on the web portal was cumbersome! After several attempts I finally got the boarding pass.

Excellent flight and even arrived 23 min early. No entertainment , or wi fi on board, but I downloaded a couple of movies beforehand which kept me entertained. Really like flying Allegiant airlines.

WE were delayed about an hour and never any communications from the employees working the gate. We also were moved to a total of three gates.

I love how they show love to their customers and care about them too.

I liked how when I got on board how fast we ended up taking off but what I truly disliked was how uncomfortable the seats were. There was truly never a time that I could ever get comfortable during both of my flights. The seats could get away during shorter flights but flights 3 hour plus makes it hard to enjoy.

The crew was great and the flight was very smooth. Can’t really judge food since I did not get any because it costs money. The seat was comfortable for what we bought. Thanks!

Crew was great. No entertainment and food and beverage was for purchase only, even water

It was canceled. The flight wasn’t rescheduled, everyone had to figure out their own new arrangements. They said we would get refunded our original fare and receive an additional $150. We received links for $100 only and they expired before we could activate them.

The plane had originated in Las Vegas at 6:30 in the morning and flew to Moline where we boarded. The flight left around 12:30 PM and there were no boxed snacks available and many of the alcoholic beverages were unavailable. I would find it hard to believe that that many of the passengers coming from Las Vegas at 6:30 in the morning, drank and ate that much of the items. I can only come to the conclusion that someone failed to stock the plane for the round-trip. This is a huge revenue failure for the airline and disappointment for the passengers. The flight crew did not seem happy to be there and did not engage with passengers. Allegiant you can do better.

They did not let my husband on the plane with our service animal at the last minute. Do NOT fly this airline with a service animal!

Not clean and was told I would get a great seat and it was not great at all

Flight got delayed for 5 hours no good explanation was offered ;(

Horrible. I would never fly Frontier again. The booking process is tricky at best, but fraudulent in my opinion. Frontier customer service did nothing to rectify my purchase -- I ended up paying more than double what I could have gotten from other airlines and nearly triple what I thought I was buying from Frontier. Their booking practices are unfair to the consumer.

Delayed. Text notifications were slow. Not much information o what was happening. Boarding was slow and confusing. Wasn’t even offered water other flight. Had to ask. No entertainment at all. Felt like.a Greyhound bus.

When I wanted to check in 3 hours prior to boarding time, the employees mentioned “a little over an hour delay” so I waited for an hour then I went to go look for food in the terminal and most people from that flight were in the same area looking for food. Finally I decided after food to check to see if it’s anytime closer and now it’s 2 mins until boarding closes?! What are you kidding me? I didn’t receive anything via sms about boarding now nor via email or on the intercom. I luckily made it through, barely, and then there’s no room for my carry on mind you I’m in the very first row so I had to place my purse in one further row back and my carry on sections down. Not sure who pays for better seats to get your stuff placed all over the plane but that was the worst experience I’ve ever had flying with anyone.

Better than expected. Staff were friendly and nice on both flights.

There was no one at the counter to assist with our check in. The app didn’t work, so I arrived at the airport with time to check in and I couldn’t because no employees were there. When I finally got someone on the phone, it was inside the 60min rule and they said I could no longer check in and they could sell me another ticket. We had to scramble and pay an additional $800 for tickets and THEN AFTER (about 60 min from my original convo with customer service and 10min after original departure time) I had boarded my new flight, there was email saying my original flight from Frontier was delayed and leaving 2hr 50min later, but I STILL wouldn’t have been able to check in. Which means customer service should have been able to see it and let me check in because I was well within my check in time. When I call Frontier, they hang up on me. So their app didn’t work and they employees left and they take zero responsibility or assistance with their “customer service”

Terrible. Flight cancelled with no reasoning and no flights to rebook. Employees were useless and did nothing to help. Did not even know where to retrieve luggage from the cancelled flight. Flyers beware.

No fault of Frontier staff: plane was very late, reached Orlando at 1 am, took a while to get luggage. Weather, gov financial shutdown impact on TSA, air controllers seemed to have multiple flights backed up. Frontier staff seemed to cope as gracefully as possible. It did reassure me that I and my new hip could adapt to travel challenges. Food/entertainment were irrelevant to my trip.

Terrible. The canceled my entire flight when I requested a refund for a trip frontier canceled trip one way.

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Everything you need to know for your flight to Knoxville

Flights with popular airlines flying to Knoxville

Flights from the other most popular airlines that fly from the United States to Knoxville according to KAYAK users. Prices are the lowest found on KAYAK over the last 7 days. Price and availability are not guaranteed.