$105 Find Cheap Flights from Knoxville to Houston

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Knoxville to Houston departing on 5/21. 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.
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KAYAK searches hundreds of travel sites at once for deals on flights to Houston

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Knoxville to Houston, 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 Knoxville to Houston, as well as popular online travel agencies
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Flights Deals

Cheap Flights from Knoxville to Houston

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

Recent round-trip flight deals from Knoxville to Houston

KAYAK's recommended round-trip deals from the most popular airlines that fly from Knoxville to Houston.
Discover the best prices for you by selecting your travel dates on KAYAK.
Allegiant Air Logo
5:02 pm - 6:13 pmTYS-HOU
2h 11mnonstop
Allegiant Air Logo
7:03 pm - 10:10 pmHOU-TYS
2h 07mnonstop
$108Allegiant Air
Find Deal
Fri, Jul 11 - Mon, Jul 14
Allegiant Air Logo
5:01 pm - 6:11 pmTYS-HOU
2h 10mnonstop
Allegiant Air Logo
7:01 pm - 10:03 pmHOU-TYS
2h 02mnonstop
$122Allegiant Air
Find Deal
Mon, Jun 9 - Fri, Jun 13
Delta Logo
6:20 am - 1:17 pmTYS-IAH
7h 57m1 stop
Delta Logo
6:00 am - 11:23 amIAH-TYS
4h 23m1 stop
$209Delta
Find Deal
Tue, May 13 - Wed, May 21
 Logo
8:59 pm - 12:07 amTYS-IAH
28h 08m1 stop
 Logo
5:53 pm - 6:12 pmIAH-TYS
23h 19m1 stop
Thu, May 15 - Sun, May 18
United Airlines Logo
9:15 am - 10:54 amTYS-IAH
2h 39mnonstop
United Airlines Logo
8:25 pm - 11:46 pmIAH-TYS
2h 21mnonstop
$219United Airlines
Find Deal
Thu, May 15 - Wed, May 21
Delta Logo
4:00 pm - 9:35 pmTYS-HOU
6h 35m1 stop
Delta Logo
10:05 am - 3:08 pmHOU-TYS
4h 03m1 stop
$229Delta
Find Deal
Tue, Aug 26 - Tue, Sep 2
United Airlines Logo
7:05 am - 8:44 amTYS-IAH
2h 39mnonstop
United Airlines Logo
8:40 am - 4:54 pmIAH-TYS
7h 14m1 stop
$239United Airlines
Find Deal
Thu, May 15 - Sun, May 18
American Airlines Logo
6:28 pm - 11:58 pmTYS-HOU
6h 30m1 stop
American Airlines Logo
5:00 am - 11:41 amHOU-TYS
5h 41m1 stop
$239American Airlines
Find Deal
Tue, May 13 - Wed, May 21
American Airlines Logo
6:00 am - 9:45 amTYS-HOU
4h 45m1 stop
American Airlines Logo
5:00 am - 1:12 pmHOU-TYS
7h 12m1 stop
$259American Airlines
Find Deal
Sat, Jul 5 - Wed, Jul 9
 Logo
8:59 pm - 12:48 pmTYS-IAH
16h 49m2 stops
 Logo
5:53 pm - 6:12 pmIAH-TYS
23h 19m1 stop
Thu, May 15 - Sun, May 18
Expert advice

Expert advice for your flight from Knoxville to Houston

 
Snippets provided in this section are AI-generated based on a summarization of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
United Airlines

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


Purchase Priority Boarding to avoid gate-checking carry-ons in higher boarding zones.

Allegiant Air

Consider bundling for early boarding and overhead space with Allegiant's Bonus option.


Allegiant's Legroom+ offers extra space and faster deplaning on select flights.

Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on United Airlines

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
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
Useful Info

KAYAK's insights & trends for Knoxville to Houston flights

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

What is the cheapest Knoxville to Houston flight route?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for round-trip flights from Knoxville to Houston.

Our data shows that the cheapest route for a return flight from Knoxville to Houston cost $91 and was between Knoxville (TYS) and Houston Hobby Airport (HOU). On average, the best prices are found if you fly this route. The average price for a return flight for this route is $91.

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

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

If your flying dates are flexible, you should consider flying to Houston on a Friday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from Knoxville to Houston. For your return ticket, we recommend flying on a Friday and avoiding Sundays for the best deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Knoxville to Houston, 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 Knoxville to Houston is August, where tickets cost $259 (return) on average. On the other hand, the most expensive months are March and December, where the average cost of round-trip tickets is $468 and $339 respectively.

Can I save money by flying with a layover from Knoxville to Houston?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $259, prices are generally cheapest when you fly direct.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Knoxville to Houston, 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 Knoxville to Houston, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 16 weeks before departure.

Good to know

Cheapest flight$105
Flight from Knoxville to Houston George Bush Airport

When to book flights from Knoxville to Houston

Are your dates flexible? Find out the best times to travel from Knoxville to Houston 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 Knoxville to Houston

  • What is the cheapest flight from Knoxville to Houston?

    In the last 3 days, the lowest price for a flight from Knoxville to Houston was $105 for a one-way ticket and $108 for a round-trip.

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

    A passport is required to fly from Knoxville to Houston.

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

    On your way to Houston, you’ll fly out from Knoxville McGhee Tyson. You’ll be landing in one of Houston’s 2 airports: Houston Hobby or Houston George Bush Intcntl.

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

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

  • Which airline alliances offer flights from Knoxville to Houston?

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

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

    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 Knoxville to Houston.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Houston from 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 from Knoxville to Houston?

    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 Houston with an airline and back to Knoxville with another airline.

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

    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 Houston from Knoxville up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Prefer to fly direct from Knoxville to Houston?

Find which airlines fly direct from Knoxville McGhee Tyson Airport to Houston, which days they fly and book direct flights.

Direct departures

Knoxville McGhee Tyson to Houston

Monday

Allegiant Air, United Airlines

Allegiant Air, United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

Allegiant Air, United Airlines

Allegiant Air, United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Direct returns

Houston to Knoxville McGhee Tyson

Monday

Allegiant Air, United Airlines

Allegiant Air, United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

Allegiant Air, United Airlines

Allegiant Air, United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights
See more direct flights

Top 4 airlines serving from Knoxville to Houston

 
See real verified KAYAK customer reviews for airlines flying from Knoxville to Houston. 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 Knoxville to Houston? 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.
8.0
DeltaOverall score based on 7936 reviews
7.9Comfort
8.2Boarding
7.9Entertainment
7.3Food
8.5Crew
Airline reviews

Delta is my preferred airline. I've traveled with them for years. On time in most cases, good communication, easy to use app. Most planes are pretty nice. I was on a CRJ 700/900 however, which was pretty badly aged inside and needed a refresh. No infotainment, unreliable wifi, best to download before boarding or bring a book. Food choices are really just snacks on this flight, nice variety but about what you'd expect. Great staff and prompt in departure and early arrival too. Overall quite satisfied.

8.0 ExcellentFredrick, Apr 2025GSO - DTW
Read more Delta reviews

Delta is my preferred airline. I've traveled with them for years. On time in most cases, good communication, easy to use app. Most planes are pretty nice. I was on a CRJ 700/900 however, which was pretty badly aged inside and needed a refresh. No infotainment, unreliable wifi, best to download before boarding or bring a book. Food choices are really just snacks on this flight, nice variety but about what you'd expect. Great staff and prompt in departure and early arrival too. Overall quite satisfied.

Crew was friendly Love the entertainment in the seat head rest.

Delta flight was on time, seats were comfortable, and crew was nice.

This had nothing to do with Delta… The flights were on time and flawless. The service was excellent. We purchased seats in (aisle/middle) comfort plus since this was a cross country flight. Unfortunately, the woman seated at the window was 300+ pounds and, as might be expected, covered up about a third of the middle seat also. there was absolutely nothing that Delta could have done about that… I just don’t know what the answer should be. If you purchase a seat, you should should be able to use the entire seat and not just the portion that someone else is not sitting/oozing in. Disappointing…there should be something that could be done….I'm just not sure what solution could be.

Delayed take-off. Very small plane so very scary with lots of bumps during the flight. Would never fly Delta on short flights in small 80 seaters plane again! Felt relieved when landed.

The worst part was I was NOT allowed in the lounge even though I was holding a first class ticket and have a premium American Express card. I have flown Business or First Class with many airlines. Delta is the ONLY one who does not extend this courtesy to anyone except people who hold the very expensive American Express card. As a result, I won’t fly Delta if I have any other choice.

A little bumpy ride . No food was being provided due the the turbulence. That was ok it was a short flight to my standards.

Simply outstanding. Their new lounge for Delta One customers is a cut above the rest.

The Dekta Rep that checked us in was great. She's very personable, pleasant, and can tell she enjoys her job.

The plane was old with small storage areas that had problems closing/latching and not enough storage for everyone, and worn, damaged seats. Service was great but feel a little unsafe on such well used planes.

The plane pushed back from the gate on time. However, it stopped on the ramp, and we waited for over 20 minutes before the aircraft pulled back to the gate. Apparently, something of importance had to be removed from the aircraft by the gate agent. I found this to be odd. The delay was not significant, but I felt that whatever was on the aircraft that had to be taken off, should’ve been done before we pushed back from the gate.

Smooth boarding process. Early departure, smooth flight, early arrival. The entertainment package has very good recent movie options. The flight crew were friendly and professional.

My suitcase was destroyed. The top part where the handle is is completed broken. And unusable now.

Since when do I have to pay for my checked bag? I have a United Explorer mileage plus silver card and I was charged for my checked bags. This also is an international flight. So I would like an explanation to be clear before I choose an airline please?

Michael, our FA was very attentive, even finding me a chocolate brownie from economy class when the dessert selections were all dairy based. ( intolerant, not allergic so don’t usually need to order dairy free)

I had a bad experience with the security at IAH and felt like a sardine on all 4 legs of my journey.

I don’t understand the purpose of the orange “priority” tag on my bag. This tagged, my bag is last or near to the last bag to come down the carousel at IAH.

Oh my gosh, I loved my experience with United! they made me want to travel more often.

The planes are so dirty! Food crumbs and finger print smudges, Dust over the vents and carpet stains. It’s disgusting.

The bag drop personal were not helpful. There was no food on the flight. Boeing aircraft, lousy as always. Everything else was fine.

Easiest flights I’ve ever taken. Plane was comfortable without overly crowded seating.

Terrible. Still have not received the refund from them. They sent it to some account that I don't even know. Spoke with costumer service and they are unable to help.

I didn’t like it at all. I miss my second flight because of the delay on Allegiant Air now I m stuck in MCO.

Good, but a bit late on take off after loading. Don't like charging for carry ons!

First time flying with them and will definitely fly again in the future. Crew was so nice and friendly, fought was seamless. They are simple planes, no entertainment, but it’s fine for a short flight or if you have personal devices Rates are competitive, and they did so well with keeping the flight on time after a tropical storm, where other airlines had delays and cancellations.

They boarded passengers that sat in the back of the plane first, making boarding very efficient.

I didn't even take this flight. My plans changed and I couldn't get ahold of customer service and the website kept breaking down during the attempt to change the flight. I wound up taking another airline entirely and eating the cost.

The worst flying experience ever 3 delays. No accommodations. Had to deboard the plane after being delayed.

Posted a 20minute delay but didn’t delay at all. Caused boarding issues and confusion. Also, didn’t release baggage. Took over an hour and 20 minutes to get luggage.

Flight was good, boarding was a breeze, flight attendants were friendly and professional. There was a medical issue with another passenger and the crew handled it in a calm and professional way.

Several delays. Next flight was worse. Did not arrive home until 2am PT

The flight to Tokyo AA61 took off about two hours late, but then had to turn back. By that time the crew had to be replaced. Then they kept promising to take off in an hour, then in 3, then switch to the next day.

Any sort of gluten free snack option would be nice

I had a carry on and a personal bag. I put my personal item under my seat and on way to the seat I put my bag up. I usually close my eyes and rest as I was on call for last 36 hours. I heard very loud announcements that someone needs to identify their bag. Pretty sure it was not mine until the hostess pointed out my jacket details attached to the bag. I asked why she got my bag out. I got berated and did not want to create a scene. But this person needs to be talked to.

Between Las Vegas and Dallas was okay But, once in the Dallas airport, notice, I have disability and ask for a wheelchair, they leave in a middle of nowhere, the personal in charge try to push me on a cart where I couldn't sit because was to high. Then they don't care about me, they bulling, till I start to yelling and crying, ask to everyone around, who can help me. The man in charge make a despective movements and said you are to loosing the fly. The last name in his batch started with an H, I did not have the full name. A nightmare. After all, a woman in charge was walking very slowly and asking me for a tip cause she was helping me to reach the fly. For years, AA has been the preferred airline. The personal in charge of the disabled people are discriminate me. Thank you Kayak.

Flight was late and missed connecting flight. They could have better accommodated, but instead did an overnight and had to arrive the next afternoon.

I didn’t like anything, being platinum pro get you absolutely nowhere and does not increase the customer service treatment whatsoever anymore. My flight was canceled and they put me on a flight eight hours later that would’ve got me back in the middle of the night. They could’ve easily move me up to an hour Prior on an earlier flight. My second flight was unreasonable to take, the third flight was also canceled due to mechanical issues like the first flight. I don’t know what’s going on with American, but they are falling apart, after seven flight changes I finally got home, Unreasonable.

Awkward carry on process. Forced to check all carry on. No overhead space of worthiness. Left delayed, but made up the time. Crew was amicable.

April was the flight attendant in first class and was the most pleasant, cordial and efficient person I have seen on a flight in years. Good example of the type of people AA should hire to increase customer satisfacdtion.

Two flight changes before the scheduled flight. On the day of the flight, the flight was delayed, which caused the connecting flight to be missed. Then, I was directed to another airport (CUN) and traveled to Tulum. American gave a $12 voucher for lunch. The least expensive item on the menu at a Mexican restaurant was $9.99. Driving to Tulum was a bad auto crash, and traffic was delayed two-plus hours. The bottom line is that we should have been at the hotel at noon, but it ended up at 11:30 PM.

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

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