TYS

$50 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 7/6. 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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Everything you should know

Cheapest round-trip
$84
Typical prices: $324-$115
Allegiant Air
Fri 6/19Mon 6/29
HOU - TYS • Non-stop
Cheapest one-way
$53
Typical prices: $100-$436
Allegiant Air
Mon 7/6
HOU - TYS • Non-stop
Advice from real travelers
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
Cheapest • from $84 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with United Airlines and Allegiant Air. Average duration is 2h 15m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top routes
Cheapest • 53% average savings
Most popular
Insights
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Insights
When to book
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 33% compared to booking last minute.
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We hope you love your trip to Knoxville!
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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, Jun 19 - Mon, Jun 29
Allegiant Air Logo
7:44 pm - 10:53 pm
HOU
-
TYS
2h 09mnonstop
Allegiant Air Logo
5:30 pm - 6:41 pm
TYS
-
HOU
2h 11mnonstop
$84Allegiant Air
Mon, Jul 20 - Fri, Jul 31
Allegiant Air Logo
7:39 pm - 10:48 pm
HOU
-
TYS
2h 09mnonstop
Allegiant Air Logo
5:32 pm - 6:49 pm
TYS
-
HOU
2h 17mnonstop
$87Allegiant Air
Mon, Jun 22 - Fri, Jun 26
Allegiant Air Logo
7:44 pm - 10:53 pm
HOU
-
TYS
2h 09mnonstop
Allegiant Air Logo
5:30 pm - 6:41 pm
TYS
-
HOU
2h 11mnonstop
$94Allegiant Air
Fri, May 29 - Mon, Jun 1
Allegiant Air Logo
7:39 pm - 10:42 pm
HOU
-
TYS
2h 03mnonstop
Allegiant Air Logo
5:30 pm - 6:49 pm
TYS
-
HOU
2h 19mnonstop
$95Allegiant Air
Fri, Jun 12 - Mon, Jun 15
Allegiant Air Logo
7:31 pm - 10:40 pm
HOU
-
TYS
2h 09mnonstop
Allegiant Air Logo
5:30 pm - 6:41 pm
TYS
-
HOU
2h 11mnonstop
$97Allegiant Air
Fri, May 29 - Mon, Jun 1
Allegiant Air Logo
7:39 pm - 10:42 pm
HOU
-
TYS
2h 03mnonstop
Allegiant Air Logo
5:30 pm - 6:49 pm
TYS
-
HOU
2h 19mnonstop
$99Allegiant Air
Mon, Jun 22 - Fri, Jun 26
Allegiant Air Logo
7:44 pm - 10:53 pm
HOU
-
TYS
2h 09mnonstop
Allegiant Air Logo
5:30 pm - 6:41 pm
TYS
-
HOU
2h 11mnonstop
$100Allegiant Air
Mon, May 18 - Wed, May 20
Multiple Airlines Logo
1:29 pm - 9:40 am
IAH
-
TYS
19h 11m
1 stop
Multiple Airlines Logo
2:20 pm - 8:50 am
TYS
-
IAH
19h 30m
1 stop
$183Multiple Airlines
Fri, May 29 - Mon, Jun 1
Frontier Logo
6:30 am - 7:24 pm
IAH
-
TYS
11h 54m
1 stop
Frontier Logo
8:32 pm - 10:44 am
TYS
-
IAH
15h 12m
1 stop
$202Frontier
Sun, May 10 - Fri, May 15
Frontier Logo
10:05 pm - 7:33 pm
IAH
-
TYS
20h 28m
1 stop
Frontier Logo
8:32 pm - 12:44 am
TYS
-
IAH
29h 12m
1 stop
$220Frontier
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.

How much is a round-trip flight from Houston to Knoxville?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Houston to Knoxville departing in June.

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 $81 on the route between Houston Hobby Airport (HOU) and Knoxville (TYS). Over the past month, this route was, on average, 53% 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 $39 (return) on average. On the other hand, the most expensive months are March and February, where the average cost of round-trip tickets is $218 and $197 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 3 weeks before departure, which saves you about 33% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 14 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$53
Flight from Houston Hobby 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 $53 for a one-way ticket and $84 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 Hobby 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

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

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

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 8465 reviews
7.8Entertainment
8.5Crew
7.9Comfort
7.2Food
8.1Boarding
Airline reviews

The agent at check in and at the gate were less than thrilled to be at work. I'm not a fan of Kayak's placement on the plane. I got put in the middle seat and none of my preferences were used.

4.0 OkayBradley, Apr 2026
RDU - ATL
Read more Delta reviews

The agent at check in and at the gate were less than thrilled to be at work. I'm not a fan of Kayak's placement on the plane. I got put in the middle seat and none of my preferences were used.

In ATL they have two sets of departure screens. Follow what is on your airline's departure board - the ATL Airport Authority departure board had completely incorrect details about the gate assignment for my flight, which would have made me miss boarding.

Flight was delayed it was hot while sitting on the plane, one engine was working on the plane until they had to do some jimmy rigging down the runway in order for the other engine to charge up. It was ridiculous

The flight was very good and the staff was very friendly and helpful!

The only thing I would say is we tried to get on a standby earlier flight, but with our fair we couldn’t. That seems senseless to leave with open seats..

Very easy to use and convenient, you can perform any action within the same portal

In a world of delays, Delta was on time both ways! Boarding was fast and efficient. Staff was friendly. AND wifi worked.

WiFi didn’t work. Flight delayed 3 hours Crew members were illiterate Seat lean back did not work.

Flight was delayed, we could have been notified earlier and in a consistent manner. App was not refreshing for another passenger to get the latest flight status. We could have stayed and waited at the hotel instead of waiting at the airport had we known the flight was going to delayed for more than 5 hours. The toilet is too tight, and needs to be cleaned more frequently (every hour). The entertainment screen froze, the touch screen not responding to touch. We were upgraded to comfort, it is more comfortable than regular economy seats.

This wasn't my experience with Delta. It was just the Pegasus flight. Seats were very hard. Staff was kinda rough. Not very nice. Charged me for snacks. For a 4 hour flight I would've expected more.

It's a long flight and I would have liked better snacks between lunch and the arrival meal. It's fine to have fruit and nuts but I really don't like ramen because it's salty junk soup. I'd suggest sandwiches. They're not expensive nor are they hard to store for a long flight. The FA's had a couple of big services and they were super busy preparing, executing and then cleaning up. Then they disappeared.

Great flight. Got to watch a movie. Smooth flight and early arrival at ORD.

I've been flying American mostly, and it's been very frustrating. This united flight makes me realize maybe the issue isn't flying, but the airline. United was a significantly better experience. The plane was more comfortable, with a normal amount of leg room (vs the ridiculous reductions AA has made), more comfortable seats, screens to watch movies. It was a much better experience!

We had excellent customer service despite the chaos at George Bush airport in Houston!

It isvvery small flight. No leg room . No space to put my personal item at feet.

Didn't make the flight because the first leg of my flight was canceled and the next leg was already booked.

The flight was delayed so we were dead tired, and after that the turbulence was horrible. I was very scared.

Terrible because it was cancelled due to volcanic ash clouds in Guatemala while all other airlines kept flying. Had to pay for a hotel to stay overnight in Houston and try to fly next day.

Overall we had a good experience during our flight from San Francisco to Houston.

Airport terminal was outdated, flight was on a small jet with no wifi

Great. No choice for n/a. No food or entertainment options

No food is available without purchasing it and there is no in-flight entertainment. Both of these are OK because we got an inexpensive flight from Allegiant and, otherwise, our experience was excellent.

just had water and there was plenty of leg & seat room. But then i don't weight 220#s!!

Not totally their fault- screaming kids that had zero parent intervention.

It was cold on the flight. The crew was very pleasant. I didn't order any food. We were delayed due to Captain waiting on maintenance log. He kept us informed though. The flight itself was smooth. I would definitely fly with Allegiant again!

I had a fantastic experience with Allegiant. I had wheelchair assistance and they helped me find my luggage and brought me to my car. Even loaded my luggage. Wonderful service!! Thank you Allegiant!

Superb. Staff great. Great flight. As with other airlines, seating too tight and restrictive.

There is not one likable thing about this airline. It’s starts with the deceptive pricing and continues through the whole flight. The worst staff I’ve ever experienced way over priced bags absolutely no food or drink (unacceptable and you should be embarrassed) the seats are cramped and uncomfortable there is no entertainment there is nothing about this trash airline that constitutes any amount of money. It’s worse than spirit and way more expensive it is disgraceful. Do not travel with Allegiant I repeat do not bother no matter what they say the price is it is never ever going to be the right choice I’m mind blown at how awful the entire experience was I’m embarrassed that I chose so poorly I cannot reiterate enough how beyond horrible this company and its staff are, not one person on this flight or at the airport is qualified to sweep up trash on a city sidewalk they should certainly never be given any job that requires a brain or manners or communication with human beings, what a disgrace to the human race. Your criminal chiselers and should be put out to pasture

Great flight. Friendly staff. Free snacks and drinks would be nice. I would love fewer taxes and fees added on.

My 90 year old father flew with me. He needed wheel chair assistance and is nearly deaf. The staff was amazing with him.

The flight was delayed about an hour for a maintenance specialist to approve the maintenance repair

This flight was delayed but it worked in my favor because my Atlanta to Dallas flight was delayed.

Flying in the United States with the major airlines has become so underwhelming. A 2-3hr flight in most other parts of the world with the major carriers of the area comes with newer, CLEANER aircraft and significantly better in flight service in terms of both staff attitude and a actual meal service.

The staff was nice. I appreciated that I was able to take an earlier flight, even though it was last minute. The boarding process felt rather chaotic.

My flight got delayed a total of five times. And the boarding gate changed four times. most of the time the platform was not up-to-date with the changes taking place. The most discouraging part of the entire trip by far.

Returned home with a blood clot from flight homes and the uncomfortable aircraft I was on.

The crew was very kind, but no in-flight entertainment monitors and a 2 hour and 30 minute delay was extremely frustrating.

Everything was delayed and the staff sent me to the wrong gate, causing me to miss one of my flights. I arrived at my destination 6 hours later than I was supposed to.

It was good, the staff was great, and the food, was as usual, tea and biscuit. Bathroom was clean, and the plane was clean as well.

It was really a terrific experience both going and returning on AA. Staff and crew were professional.

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

Information on your arrival and departure airports