HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Knoxville

$116+ Cheap flights from Houston to Knoxville (TYS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/11. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — TYS
Jan 27 — Feb 31
Tue 1/27
Tue 2/3
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Houston to Knoxville with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Houston to Knoxville McGhee Tyson are usually found in August or June, booked 87 days in advance, depart on a Tuesday or Monday and return on a Monday

Cheap flight deals from Houston to Knoxville

Cheapest flights from Houston to Knoxville
Explore the most affordable flight options available from Houston to Knoxville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 28, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 12/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/298:20 pmHOU - TYS
Nonstop2h 01mAllegiant Air
Mon 1/56:06 pmTYS - HOU
Nonstop2h 24mAllegiant Air
Deal found 12/27$254
This United Airlines deal was found by Cheapflights users on 12/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/308:27 pmIAH - TYS
Nonstop2h 15mUnited Airlines
Thu 1/154:55 pmTYS - IAH
Nonstop2h 48mUnited Airlines
Deal found 12/27$344
This Delta deal was found by Cheapflights users on 12/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:00 amHOU - TYS
1 stop4h 09mDelta
Thu 1/1511:05 amTYS - HOU
1 stop6h 05mDelta
Deal found 12/27$364
This Delta deal was found by Cheapflights users on 12/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:00 amIAH - TYS
1 stop4h 09mDelta
Thu 1/156:09 pmTYS - IAH
1 stop6h 47mDelta
Deal found 12/27$364
This United Airlines deal was found by Cheapflights users on 12/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/308:00 amIAH - TYS
Nonstop2h 11mUnited Airlines
Fri 1/27:00 amTYS - IAH
Nonstop2h 50mUnited Airlines
Deal found 12/26$379
This Expedia deal was found by Cheapflights users on 12/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/286:45 amIAH - TYS
1 stop7h 46mFrontier
Sun 1/44:26 pmTYS - IAH
1 stop19h 11mFrontier
Deal found 12/25$382
This Delta deal was found by Cheapflights users on 12/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/296:40 pmHOU - TYS
1 stop3h 53mDelta
Mon 1/56:09 pmTYS - HOU
1 stop5h 24mDelta
Deal found 12/27$399
This Delta deal was found by Cheapflights users on 12/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/297:00 amIAH - TYS
1 stop5h 30mDelta
Mon 1/56:09 pmTYS - IAH
1 stop6h 47mDelta
Deal found 12/27$399
This United Airlines deal was found by Cheapflights users on 12/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/288:27 pmIAH - TYS
Nonstop2h 15mUnited Airlines
Sun 1/49:05 amTYS - IAH
Nonstop2h 55mUnited Airlines
Deal found 12/25$403
This United Airlines deal was found by Cheapflights users on 12/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/294:35 pmIAH - TYS
Nonstop2h 15mUnited Airlines
Mon 1/511:58 amTYS - IAH
Nonstop2h 42mUnited Airlines
Deal found 12/27$440
This American Airlines deal was found by Cheapflights users on 12/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/276:07 pmHOU - TYS
1 stop4h 38mAmerican Airlines
Fri 1/25:23 amTYS - HOU
1 stop5h 20mAmerican Airlines
Deal found 12/26$444
This American Airlines deal was found by Cheapflights users on 12/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/289:26 amIAH - TYS
1 stop7h 04mAmerican Airlines
Sun 1/46:20 pmTYS - IAH
1 stop6h 30mAmerican Airlines
Deal found 12/27$444

Find flight deals from Houston to Knoxville

Discover tips and strategies to find the most affordable flight options for your journey from Houston (HO1) to Knoxville (TYS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 28, 2025.

Round-trip from

$193
(Kiwi.com)

One-way from

$116
(Frontier)

Popular in

March

Cheapest in

August

Average price

$286
From Houston to Knoxville McGhee Tyson
Search Deals
One-way flight from Houston to Knoxville McGhee Tyson
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($45 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Houston to Knoxville that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 28, 2025.
Use the filters below to find and compare flights from Houston to Knoxville that are best for you.

Fly from

Houston

Fly to

Knoxville

Route

Depart

Return

Price

HoustonKnoxville

IAH - TYS

IAHTYS

Houston George Bush Intcntl

Sat 1/24

4:35 pm-8:39 am

1 stop15h 04m

Knoxville McGhee Tyson

Sat 1/31

5:59 pm-1:10 pm

1 stop20h 11m

$207

HoustonKnoxville

IAH - TYS

IAHTYS

Houston George Bush Intcntl

Fri 1/23

4:35 pm-11:09 am

1 stop17h 34m

Knoxville McGhee Tyson

Wed 1/28

4:47 pm-11:58 pm

1 stop8h 11m

$208

HoustonKnoxville

IAH - TYS

IAHTYS

Houston George Bush Intcntl

Sat 1/24

8:29 pm-11:44 pm

Nonstop2h 15m

Knoxville McGhee Tyson

Sat 1/31

4:55 pm-6:43 pm

Nonstop2h 48m

$209

HoustonKnoxville

IAH - TYS

IAHTYS

Houston George Bush Intcntl

Fri 1/23

8:29 pm-11:44 pm

Nonstop2h 15m

Knoxville McGhee Tyson

Wed 1/28

11:40 am-1:28 pm

Nonstop2h 48m

$209

HoustonKnoxville

IAH - TYS

IAHTYS

Houston George Bush Intcntl

Fri 1/23

4:35 pm-7:50 pm

Nonstop2h 15m

Knoxville McGhee Tyson

Sun 1/25

6:59 am-8:50 am

Nonstop2h 51m

$209

HoustonKnoxville

HOU - TYS

HOUTYS

Houston Hobby

Sat 1/24

6:00 am-11:31 am

1 stop4h 31m

Knoxville McGhee Tyson

Sat 1/31

6:00 am-10:05 am

1 stop5h 05m

$229

HoustonKnoxville

IAH - TYS

IAHTYS

Houston George Bush Intcntl

Wed 4/8

5:23 am-11:15 am

1 stop4h 52m

Knoxville McGhee Tyson

Sat 4/11

5:30 am-10:22 am

1 stop5h 52m

$229

HoustonKnoxville

HOU - TYS

HOUTYS

Houston Hobby

Tue 1/27

6:00 am-11:31 am

1 stop4h 31m

Knoxville McGhee Tyson

Mon 2/2

12:19 pm-6:06 pm

1 stop6h 47m

$229

HoustonKnoxville

IAH - TYS

IAHTYS

Houston George Bush Intcntl

Fri 5/29

11:50 am-6:15 pm

1 stop5h 25m

Knoxville McGhee Tyson

Fri 6/5

4:00 pm-9:08 pm

1 stop6h 08m

$229

HoustonKnoxville

HOU - TYS

HOUTYS

Houston Hobby

Fri 1/23

9:04 am-3:46 pm

1 stop5h 42m

Knoxville McGhee Tyson

Wed 1/28

12:21 pm-6:06 pm

1 stop6h 45m

$229

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/25

Showing 1-10 of 31 results
1
2
3
4

Best time to book a flight from Houston to Knoxville

Have a flexible travel schedule? Discover the best time to fly to Knoxville from Houston with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

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

Use this chart to determine the optimal time to book a round-trip flight from Houston to Knoxville. Price data was last updated on December 26, 2025.

Booking 87 days in advance of your planned departure date is, on average, the best time to get cheap flights from Houston to Knoxville. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Houston to Knoxville?

Currently, December is the cheapest month in which you can book a flight from Houston to Knoxville (average of $64). Flying from Houston to Knoxville in September is currently the most expensive (average of $206). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from HOU to TYS?

Find hourly flight availability from Houston to Knoxville. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 28, 2025.

When flying from Houston to Knoxville, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 46% versus a flight in the afternoon.

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

Use this chart to determine the cheapest time to fly round-trip from Houston to Knoxville. Price data was last updated on December 27, 2025.

Travelers seeking maximum savings on their Houston to Knoxville flight should consider departing on Wednesday mornings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Knoxville

Get insights into the airlines that provide service to Knoxville. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Knoxville. Reviews last updated December 28, 2025.
See what other customers who have flown with Delta, United Airlines, and American Airlines from Houston to Knoxville have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,019 reviews

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.1

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,019 reviews
Delta
7.9
Good
8,019 reviews

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.1

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,113 reviews
Delta
7.9
Good
8,019 reviews

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.1

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,072 reviews
Delta
7.9
Good
8,019 reviews

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.1

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Allegiant Air
7.2
Good
703 reviews
Delta
7.9
Good
8,019 reviews

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.1

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Houston to Knoxville. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Knoxville from Houston?

    Most people fly into Knoxville McGhee Tyson (TYS) if they book a flight to Knoxville from Houston. On average, McGhee Tyson has 0 inbound flights from Houston per day from 4 airlines. Knoxville McGhee Tyson is conveniently located just 11.3 mi from Knoxville’s city center.

  • How long is the flight from Houston to Knoxville?

    For as low as $209, United Airlines can have you in Knoxville from Houston in 2h 15m. Airlines will cover a distance of 770 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Houston to Knoxville round-trip?

    According to our current data, Allegiant Air ($54), Delta ($104), and United Airlines ($209) offers the cheapest pricing from Houston to Knoxville. Allegiant Air is currently priced 82% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Houston to Knoxville one-way?

    For one-way options, check prices for Allegiant Air. According to our data, you can fly for as low as $51. Users have also found prices from $107 and $133 on American Airlines and United Airlines, respectively.

  • What are the cheapest flights from Houston to Knoxville?

    Looking for the cheapest flight from Houston to Knoxville? While on average our users pay $139, our data indicates the cheapest price to be $51. The most popular route (Houston Hobby - Knoxville McGhee Tyson), is priced around $192.

  • Can I find deals for flights from Houston to Knoxville that include hotel bookings?

    Yes. In addition to deals on Houston to Knoxville flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Houston to Knoxville?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Houston to Knoxville.

  • Can I find deals for business class flights from Houston to Knoxville?

    Yes. Cheapflights offers flight deals from Houston to Knoxville by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Houston to Knoxville?

    Currently, December is the cheapest month in which you can book a flight from Houston to Knoxville (average of $64). Flying from Houston to Knoxville in September is currently the most expensive (average of $206). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Knoxville?

Book flights to Knoxville if you plan to visit one of these locations
Cherokee
Crossville
Corbin
Morristown
Bryson City
Alcoa
Oak Ridge
Murphy

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Houston to Knoxville

See prices for flight routes from nearby airports that may be better suited for you.
Dallas/Fort Worth to Nashville flights
Hobby to Nashville flights
Hobby to Knoxville flights
George Bush Intcntl to Nashville flights
Austin to Nashville flights
George Bush Intcntl to Knoxville flights
Hobby to Memphis flights
Dallas/Fort Worth to Knoxville flights
Dallas/Fort Worth to Memphis flights
George Bush Intcntl to Memphis flights
Love Field to Nashville flights
San Antonio to Nashville flights
Austin to Memphis flights
Love Field to Memphis flights
Austin to Knoxville flights
Dallas/Fort Worth to Chattanooga flights
Love Field to Knoxville flights
El Paso to Nashville flights
Corpus Christi to Nashville flights
McAllen to Nashville flights
San Antonio to Knoxville flights
George Bush Intcntl to Chattanooga flights
Hobby to Chattanooga flights
Midland to Knoxville flights
Austin to Chattanooga flights
Midland to Nashville flights
San Antonio to Memphis flights
El Paso to Knoxville flights
Love Field to Chattanooga flights
McAllen to Knoxville flights
Harlingen to Nashville flights
Hobby to Blountville flights
Austin to Blountville flights
Lubbock to Nashville flights
Brownsville to Nashville flights
Corpus Christi to Knoxville flights
Corpus Christi to Memphis flights
George Bush Intcntl to Blountville flights
San Antonio to Chattanooga flights
Amarillo to Memphis flights
El Paso to Chattanooga flights
Dallas/Fort Worth to Blountville flights
Waco to Nashville flights
Amarillo to Knoxville flights
Lubbock to Chattanooga flights
Laredo to Nashville flights
Love Field to Blountville flights
Amarillo to Nashville flights
Beaumont to Chattanooga flights
San Antonio to Blountville flights

Top 4 airlines flying from Houston to Knoxville

Discover the top 4 airlines that operate flights from Houston to Knoxville. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$64Average$113FlexibilityNo cancel feeOn-time88%
DeltaCheapest$190Average$320FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$210Average$403FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$228Average$386FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.