TYS

$93 Find Cheap Flights from Houston 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 from Houston to Knoxville departing on 3/3. 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 in flight searches from Houston to Knoxville, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Houston to Knoxville, as well as popular online travel agencies
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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$199
Overall average: $350
Multiple Airlines
Fri 2/27Mon 3/2
IAH - TYS • 1 stop
Cheapest non-stop
$209
Typical prices: $350-$609
United Airlines
Tue 2/24Tue 3/3
IAH - TYS • Non-stop
Our travelers' advice
AI-powered summary based on content written by travel experts. AI can make mistakes.
Allegiant's Bonus bundle includes carry-on and flexibility.
United's Economy Plus adds up to six inches of legroom.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
United Airlines
Cheapest • from $209 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Top routes
HOU
-
TYS
Cheapest • 29% average savings
IAH
-
TYS
Most popular
Insights
Insights
Insights
Insights
When to book
2 weeks
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 32% compared to booking last minute.
Insights
Insights
Insights
Insights
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Flight Deals
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Expert advice
Flight Deals

Cheap Flights from Houston to Knoxville

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Houston 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 from Houston to Knoxville

Fri, Feb 27 - Mon, Mar 2
Multiple Airlines Logo
6:39 am - 6:06 pm
IAH
-
TYS
10h 27m
1 stop
Multiple Airlines Logo
12:55 pm - 11:11 am
TYS
-
IAH
23h 16m
1 stop
$199Multiple Airlines
Tue, Feb 24 - Tue, Mar 3
United Airlines Logo
4:40 pm - 7:55 pm
IAH
-
TYS
2h 15mnonstop
United Airlines Logo
7:05 am - 8:50 am
TYS
-
IAH
2h 45mnonstop
$209United Airlines
Mon, Feb 23 - Mon, Mar 2
Multiple Airlines Logo
7:45 am - 6:32 pm
IAH
-
TYS
9h 47m
1 stop
Multiple Airlines Logo
2:06 pm - 11:11 am
TYS
-
IAH
22h 05m
1 stop
$212Multiple Airlines
Wed, Feb 25 - Wed, Mar 4
Multiple Airlines Logo
7:59 pm - 10:11 pm
IAH
-
TYS
25h 12m
1 stop
Multiple Airlines Logo
2:05 pm - 8:45 pm
TYS
-
IAH
7h 40m
1 stop
$215Multiple Airlines
Wed, Feb 18 - Wed, Feb 25
Delta Logo
5:25 am - 11:08 am
HOU
-
TYS
4h 43m
1 stop
Delta Logo
5:35 am - 10:01 am
TYS
-
HOU
5h 26m
1 stop
$229Delta
Wed, Feb 18 - Wed, Feb 25
Delta Logo
5:30 am - 11:08 am
IAH
-
TYS
4h 38m
1 stop
Delta Logo
5:35 am - 11:35 am
TYS
-
IAH
7h 00m
1 stop
$229Delta
Tue, Mar 10 - Tue, Mar 17
Southwest Logo
11:05 am - 9:10 pm
HOU
-
TYS
9h 05m
2 stops
Southwest Logo
6:35 am - 9:55 am
TYS
-
HOU
4h 20m
1 stop
$234Southwest
Tue, Mar 10 - Tue, Mar 17
Southwest Logo
10:10 am - 8:05 pm
HOU
-
TYS
8h 55m
2 stops
Southwest Logo
6:35 am - 12:45 pm
TYS
-
HOU
7h 10m
2 stops
$239Southwest
Sat, Feb 28 - Sun, Mar 1
American Airlines Logo
12:18 pm - 5:31 pm
HOU
-
TYS
4h 13m
1 stop
American Airlines Logo
5:40 am - 9:43 am
TYS
-
HOU
5h 03m
1 stop
$285American Airlines
Wed, Feb 11 - Sat, Feb 14
American Airlines Logo
10:35 am - 3:46 pm
HOU
-
TYS
4h 11m
1 stop
American Airlines Logo
5:40 am - 9:43 am
TYS
-
HOU
5h 03m
1 stop
$304American Airlines
Booking Insights

KAYAK's insights & trends for Houston to Knoxville flights

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

What is the cheapest Houston to Knoxville flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest return flight from Houston to Knoxville costs $113 on the route between Houston Hobby Airport (HOU) and Knoxville (TYS). Over the past month, this route was, on average, 29% cheaper than other Houston-Knoxville routes. The most popular route is between Houston George Bush Intcntl Airport (IAH) and Knoxville (TYS).

What’s the cheapest day of the week to fly from Houston to Knoxville?

The average price of all round-trip flights from Houston to Knoxville clicked on KAYAK for each day over the last 12 months.

When flying from Houston to Knoxville, you should consider leaving on a Monday and avoid Sundays if you are looking for the best rates. For your return to Houston, you’ll find the best rates on Fridays and the most expensive ones on Sundays.

What is the cheapest month to fly from Houston to Knoxville?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Houston 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 from Houston to Knoxville is August, where tickets cost $248 (return) on average. On the other hand, the most expensive months are March and September, where the average cost of round-trip tickets is $398 and $368 respectively.

How far in advance should I book a flight from Houston to Knoxville?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Houston to Knoxville, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Houston to Knoxville, you should book around 2 weeks before departure, which saves you about 32% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.

Expert advice

Expert advice for your flight from Houston 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.
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on United Airlines

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.

Daniel Scheffler

Daniel Scheffler

Expert on Allegiant Air

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.

Good to know

Cheapest flight$93
Flight from Houston George Bush Airport to Knoxville

When to book flights from Houston to Knoxville

Are your dates flexible? Find out the best times to travel from Houston 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. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Houston to Knoxville

  • What is the cheapest flight from Houston to Knoxville?

    In the last 3 days, the lowest price for a flight from Houston to Knoxville was $93 for a one-way ticket and $199 for a round-trip.

  • Do I need a passport to fly between Houston and Knoxville?

    Yes, you’ll need a passport to travel to Knoxville from Houston.

  • Which airports will I be using when flying from Houston to Knoxville?

    Houston has 2 major airports: Houston Hobby and Houston George Bush Intcntl. Knoxville McGhee Tyson is the only airport in Knoxville. You’ll usually find the cheapest deals if you fly from Houston George Bush Airport.

  • Which aircraft models fly most regularly from Houston to Knoxville?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Houston to Knoxville?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between Houston and Knoxville, with SkyTeam being the most commonly used for this route.

  • How does KAYAK find such low prices on flights from Houston 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 from Houston to Knoxville.

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

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

  • What is the Hacker Fare option on flights from Houston 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 to Houston with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Houston 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 from Houston up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Prefer to fly direct from Houston to Knoxville?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Houston to Knoxville McGhee Tyson.
Find which airlines fly direct from Houston to Knoxville McGhee Tyson Airport, which days they fly and book direct flights.

Direct departures

Houston to Knoxville McGhee Tyson

Monday

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Direct returns

Knoxville McGhee Tyson to Houston

Monday

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Reviews of the top 4 airlines serving from Houston to Knoxville

 
See real verified KAYAK customer reviews for airlines flying from Houston to Knoxville. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Houston 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 8127 reviews
7.9Comfort
8.5Crew
7.2Food
7.8Entertainment
8.1Boarding
Airline reviews

Delta One is extraordinary. I fly business when somebody hires me. I just wonder why there is such a chasm between business class and the insanely inhumane and nonsensical coach. The seats are not large enough to fit even my tiny wife. We fly 10% of what we did because we don’t want to pay 5-10 k but for $400 it’s unbearable. It seems like the accountants took over and made stupid decisions. Screw in 20 extra seats and make it so unbearable that people fly 90% less. Just put the damn price up and put some proper chairs in. But business, yay.

10.0 ExcellentDr. Simon, Jan 2026
LAX - JFK
Read more Delta reviews

Delta One is extraordinary. I fly business when somebody hires me. I just wonder why there is such a chasm between business class and the insanely inhumane and nonsensical coach. The seats are not large enough to fit even my tiny wife. We fly 10% of what we did because we don’t want to pay 5-10 k but for $400 it’s unbearable. It seems like the accountants took over and made stupid decisions. Screw in 20 extra seats and make it so unbearable that people fly 90% less. Just put the damn price up and put some proper chairs in. But business, yay.

Timing, quality of service, promptness and courtesy of the staff

It was last minute due to weather - considering - it was amazing! Good smiles, friendly staff and they were making sure we knew what was going on when and where.

delta last minute gave me a boarding pass for a different flight with no confirmation that they were changing it

The service from the flight attendants were of supreme quality. They greeted and treated everyone with a wide smile. This is totally absent nowadays. Kudos to them!!!!

Excellent flight and got us around tough weather. Only issue was seat TV did not work and crew tried to reboot.

Very large passenger too space from my own seat. Arm board couldn’t be lowered because of his size. It wads very uncomfortable trip, as the flight was full couldn’t move anywhere having back pain because of the position in which I was the entire flight.

was sitting in the jet bridge for 10 minutes in -20 degree weather waiting for my bag

Outdated equipment in disrepair, wifi inoperable. Broken seats, taped air vents, generally poor condition, the 717 showed its age and lack of upkeep.

My flight out of Baton Rouge to Atlanta was delayed by a half hour. This got us into Atlanta airport 30 minutes late. I ran through the airport to get to my connecting flight. As I approached the boarding gate, I saw the boarding door was still open and a passenger was being checked in. But when I got to the gate, the boarding agent told me they had already given away my seat and there were no empty seats on that flight. So I had to take a later flight. That has never happened to me before. Very frustrating.

I like flying first class, and United has a nice one

Unbelievably poor service from flight attendants. They didn’t even do water service on a four hour flight. Just disrespectful.

Seats had less pitch than a regional jet. Food was OK. Have to buy alcohol on US based carriers flying international. Boarding was a mess. Did not have bags but overhead space was gone quick. Would like to see the airlines enforce the one bag over and one bag under policy

Lately I like the planes have been exceptionally filthy. There’s lines of dust and dirt all across the ceiling in the vents, and the cracks in between the seats are literally full of food. It’s definitely not the quality of service that I was used to with United. I’m also very disappointed with the Wi-Fi! All I wanna do is knock out a few work jobs while I’m trapped in my seat And it spools so bad. They did provide me with a refund, but the process of getting that refund is so complicated. It’s unfortunate.

Crew was excellent. This was a relatively long flight though and had very little leg room, and no entertainment.

The newer screen was super cool and had the option to watch many different shows or movies. Crew was polite and helpful. However again, many children screaming bloody murder and kicking my seat, and parents doing nothing about it as usual.

Plane was crowded and even when we hit altitude, the plane was hot, not enough air flow.

Flight was delayed and missed my connection Lufthansa didn’t respond.

the delay for 3 hours was understandable due to weather conditions but the flight should’ve provided some on flight compensations or at least provide more food.

United could have one single once of customer service. No human United employee would help me with the invalid mileage plus number, they said I had to speak with the computer.

No gates avail at DFW so our incoming had to wait 30 mins for a plane to push back because they Had mechanical. We boarded 90 mins delayed and then we had a mechanical. Come on American…do better. Also at my seat the tray table had not been cleaned. Floor had not been cleaned. But captain and flight Att were very picture and apologetic.

Flight was smooth, quick and felt safe. The 2 delays not happening would have been better but I guess that happens in the airline industry

Flight was canceled. I asked to be rerouted to OKC and then took an Uber.

AA did not allow to board a flight because my connecting flight from DFW had been canceled. I got on another flight to another city. No service on the plane and I did not use their entertainment system.

I booked an aisle seat and was given a middle. At 6'4" 230lbs, it is not ideal to fly in the middle row for myself and passengers.

Concern Regarding Significant Gate Delay and Jet Bridge Issue Dear Customer Relations Team, I am writing to express my disappointment with the experience I had on my recent flight AA 2414 on Sunday January 18, 2026. What should have been a routine departure turned into a frustrating and avoidable delay due to an issue with the jet bridge at the gate. As a result, the flight was delayed by approximately 90 minutes while multiple gate changes were attempted. The lack of clear communication during this period made the situation even more challenging. Passengers were left uncertain about the cause of the delay, the expected timeline, and the next steps. This not only disrupted travel plans but also created unnecessary stress for everyone on board. I understand that operational issues can arise, but a malfunctioning jet bridge and the resulting extended delay suggest an area where procedures or equipment maintenance may need attention. I hope you will review this incident to prevent similar disruptions in the future. I would appreciate acknowledgment of this concern and consideration of appropriate compensation for the inconvenience and lost time caused by this delay. Thank you for taking the time to review my experience. I look forward to hearing from you. Sincerely, Dion Dillard

They made me pay $40 to check a bag that was listed as free when I bought my ticket. Then before boarding they offered to check any bags free.

The seat cushions were very worn so they were extremely uncomfortable.

Delayed, no updates, had a rewards number but was not working

AA should improve their in air internet & entertainment options. Seems unreasonable to charge $20/hr and should have some form of free connections. The entertainment options are also pretty limited, movies are outdated and the series only show 3-5 episodes.

It was fine. Nobody was outstandingly friendly but no one was rude and everything was smooth . The captain thanked us for flying but no one greeted me as I walked on the plane or as I exited which is the least they could do lol

Clean, friendly, roomy. But check-in from the phone link was terrible. Repeated attempts wouldn’t save at the final step. Just kept spinning! It was very frustrating. Finally, I used the app (vs website link) to check-in which worked very smoothly on the first attempt.

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.

Everything you need to know for your flight from Houston to Knoxville

Information on your arrival and departure airports