$51 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 8/18. 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

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 (TYS-HOU)

 
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.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Knoxville to Houston

Fri, Aug 15 - Mon, Aug 18
Allegiant Air Logo
5:47 pm - 7:12 pmTYS-HOU
2h 25mnonstop
Allegiant Air Logo
8:02 pm - 11:03 pmHOU-TYS
2h 01mnonstop
$82Allegiant Air
Find Deal
Fri, Aug 15 - Mon, Aug 18
Allegiant Air Logo
5:47 pm - 7:12 pmTYS-HOU
2h 25mnonstop
Allegiant Air Logo
8:02 pm - 11:03 pmHOU-TYS
2h 01mnonstop
$83Allegiant Air
Find Deal
Fri, Aug 15 - Mon, Aug 18
 Logo
12:45 pm - 8:45 amTYS-IAH
21h 00m1 stop
 Logo
6:30 am - 4:47 pmIAH-TYS
9h 17m1 stop
Tue, Aug 12 - Sat, Aug 16
Delta Logo
5:45 am - 9:45 amTYS-HOU
5h 00m1 stop
Delta Logo
6:34 pm - 11:48 pmHOU-TYS
4h 14m1 stop
$228Delta
Find Deal
Tue, Aug 12 - Mon, Aug 18
Delta Logo
11:58 am - 2:53 pmTYS-IAH
3h 55m1 stop
Delta Logo
5:45 am - 11:03 amIAH-TYS
4h 18m1 stop
$228Delta
Find Deal
Fri, Jul 11 - Sun, Jul 20
United Airlines Logo
7:00 am - 1:29 pmTYS-IAH
7h 29m1 stop
United Airlines Logo
4:35 pm - 8:01 pmIAH-TYS
2h 26mnonstop
$234United Airlines
Find Deal
Fri, Jul 11 - Sun, Jul 20
United Airlines Logo
5:00 pm - 6:27 pmTYS-IAH
2h 27mnonstop
United Airlines Logo
4:35 pm - 8:01 pmIAH-TYS
2h 26mnonstop
$240United Airlines
Find Deal
Sun, Jul 13 - Sun, Jul 20
 Logo
8:54 pm - 9:39 pmTYS-IAH
25h 45m1 stop
 Logo
3:16 pm - 11:37 pmIAH-TYS
7h 21m1 stop
Sat, Jul 12 - Sun, Jul 13
American Airlines Logo
6:22 pm - 11:59 pmTYS-IAH
6h 37m1 stop
American Airlines Logo
7:58 am - 1:12 pmIAH-TYS
4h 14m1 stop
$259American Airlines
Find Deal
Fri, Jul 11 - Fri, Jul 18
American Airlines Logo
2:02 pm - 7:53 pmTYS-HOU
6h 51m1 stop
American Airlines Logo
6:30 pm - 11:52 pmHOU-TYS
4h 22m1 stop
$289American Airlines
Find Deal
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 $47 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 $47.

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 Monday 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 October, where tickets cost $267 (return) on average. On the other hand, the most expensive months are March and June, where the average cost of round-trip tickets is $468 and $350 respectively.

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$51
Flight from Knoxville to Houston Hobby 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 $51 for a one-way ticket and $82 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, Star Alliance, and oneworld 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?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Knoxville McGhee Tyson 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

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 7963 reviews
8.5Crew
7.9Entertainment
7.9Comfort
7.3Food
8.2Boarding
Airline reviews

The flight was scheduled for 2:30 PM. Early in the morning we got a text message saying the flight was delayed and rescheduled for 3:00 PM. We got to the airport with that in mind. Then we got a message during check-in at the flight was rescheduled again for 2:30 PM. We almost missed our flight. In fact, our bags Were told that they would not make it. At the end, everything worked out. But it is very stressful.

4.0 OkayKoonj, Jun 2025MSP - AUS
Read more Delta reviews

The flight was scheduled for 2:30 PM. Early in the morning we got a text message saying the flight was delayed and rescheduled for 3:00 PM. We got to the airport with that in mind. Then we got a message during check-in at the flight was rescheduled again for 2:30 PM. We almost missed our flight. In fact, our bags Were told that they would not make it. At the end, everything worked out. But it is very stressful.

Most aspects were good however if they assign boarding zones they ought to enforce them or why bother? My luggage from SAN-JFK-MAD was lost in NY so I without my main bag for two days upon arrival in Spain. They were helpful in tracking it and eventually delivered it to my hotel. The flub was because of a delay upon arrival in NYC. I had booked 2 1/2 hours between flights but we had to hold on the taxiway for an hour after landing while waiting for a clear gate which likely caused the baggage error.

Excellent check-in. Crew was good. Excellent communication from flight deck.

Great overall. There was a bit of turbulence so they could only serve water because too much turbulence for the carts. Was glad they prioritized safety though

Excellent flight, the planes were newer, they did a nice job with boarding, great service overall.

Great service. Flight was delayed while we sat on the runway for a couple of hours. Weather related. Staff made is very bearable. The steward servicing the first class cabin was exceptional. Thank you! 💗

5 hours of delay that could've been much shorter if Delta had taken the 1 hour delay they imposed on the flight before boarding to run any of the plane checks required for flight to find the hydraulic issue that required nearly 3 hours to fix. $24 of meal credit buys a sandwich and a soft drink. Poor communication within the terminal about what gate we'd be re-boarding from and when we'd be re-boarding.

Amazing flight! I have never noticed the uniforms of the attendants before in twenty years of flying except today when one female had the most amazing dress on. It was beautifully designed and showed she was in charge. I never dreamed I would google who designed Delta uniforms . The ultimate compliment is when another woman admires your outfit. . I hope your designer puts it on the market

It would be nice if was given wires ear buds. Overall was a good experience was able to sleep on the plane

My flight was 6 pm 6/6. Every hour they delayed it again - air condition issues then no pilot then the crew had worked too many hours and cancelled the flight at 11 pm. Sent customers to NJ a 45 minutes uber ride to a hotel. Had to be back by 5 am for a 7 am flight and again no pilot etc with another three hours of delays.

Gate agent did not hold flight for connection, provided no assistance to get new flight

I always appreciate when everything is on time! In this flight you have a short connection and it could be stressful , but is was easy and fast. They even ask people to wait so the ones that have a short connection could leave before. It was the fist time that something like this happened.

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 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.

Tight! Seats are not designed for those of us who wear extra-large clothes.

The non-stop flight from Grand Rapids was excellent. I neither expected or needed a budget flight and Allegiant made the trip easy and for an affordable price, Arriving at the Mesa Airport (AZA) is a delight compared to the international airport. For our return flight, we were able to arrive 75 minutes before the flight, return the rental car, check our bag and make it to the gate in plenty of time. That would never happen at most airports.

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.

The chair cushions may need an upgrade. I have been noticing they are so worn out, thin so you’d sit in a dip 😄. Other than that, all was an enjoyable trip. Thanks AA!

I’m impressed that we were on time in Sacramento after having a late departure in Newark and our made it. The staff was friendly and warm.

5.5 hour delay with no explanation on why, along with no proactive effort to reaccomodate me.

Plane, flight, crew, captain were all great. The first flight had a Chipotle box lunch...delicious.

Plane, flight, crew, captain were all great. The first flight had a Chipotle box lunch...delicious. this return flight not as tasty, but filling.

So awful Unreliable Unfriendly Bad Mad Mean Smelly Hot Late Overbooked Understaffed Expensive Cramped Narcs If they were a fruit they’d be rotten durian

It’s a great flight. Service is good. Staff is awesome.

Boarding on time and fight was early but they didn't let us off the plane on time so we missed our connecting flight to Japan.

DFW-LHR Toilets not kept clean Too cramped. Aisles so narrow crew were constantly banging into people on the aisle seats. Even then, the carts used are reduced width. Other than that it was a decent flight on both legs

Eventless. It was a good flight and good crew. Can’t complaint.

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

Information on your arrival and departure airports

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