Houston

$86+ Cheap flights from Knoxville (TYS) to Houston

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 2/23. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — HOU
Μαρ 5 — Μαρ 121
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Cheapflights Tip: The best prices from Knoxville McGhee Tyson to Houston are usually found in August or July, booked 45 days in advance, depart on a Monday or Sunday and return on a Tuesday

Cheap flight deals from Knoxville to Houston

Cheapest flights from Knoxville to Houston
Explore the most affordable flight options available from Knoxville to Houston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on Φεβρουάριος 3, 2026.

This Priceline deal was found by Cheapflights users on 2/2. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Πεμ 4/164:28 pm
TYS
-
IAH
1 stop9h 20m
Frontier
Κυρ 4/196:45 am
IAH
-
TYS
1 stop7h 48m
Frontier
Deal found 2/2$195
This Super.com deal was found by Cheapflights users on 2/1. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Παρ 2/208:12 pm
TYS
-
IAH
1 stop29h 21m
Frontier
Δευ 2/236:39 am
IAH
-
TYS
1 stop11h 39m
Frontier
Deal found 2/1$198
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Παρ 2/2712:55 pm
TYS
-
IAH
1 stop22h 22m
Multiple Airlines
Κυρ 3/16:00 am
IAH
-
TYS
1 stop15h 07m
Multiple Airlines
Deal found 2/2$202
This United Airlines deal was found by Cheapflights users on 1/31. 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.
Σαβ 2/287:05 am
TYS
-
IAH
Nonstop2h 45m
United Airlines
Τρι 3/34:40 pm
IAH
-
TYS
Nonstop2h 15m
United Airlines
Deal found 1/31$209
This Kiwi.com deal was found by Cheapflights users on 1/31. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Σαβ 2/288:00 am
TYS
-
IAH
1 stop11h 53m
Multiple Airlines
Τρι 3/37:59 pm
IAH
-
TYS
1 stop21h 27m
Multiple Airlines
Deal found 1/31$214
This CheapOair deal was found by Cheapflights users on 2/2. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Δευ 2/168:13 pm
TYS
-
IAH
1 stop28h 19m
Frontier
Πεμ 2/194:59 pm
IAH
-
TYS
1 stop25h 28m
Frontier
Deal found 2/2$216
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Δευ 3/308:58 am
TYS
-
IAH
1 stop24h 42m
Multiple Airlines
Τετ 4/18:00 am
IAH
-
TYS
1 stop9h 18m
Multiple Airlines
Deal found 2/2$218
This American Airlines deal was found by Cheapflights users on 2/2. 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.
Πεμ 4/96:54 pm
TYS
-
HOU
1 stop5h 53m
American Airlines
Τετ 4/156:01 am
HOU
-
TYS
1 stop5h 29m
American Airlines
Deal found 2/2$229
This United Airlines deal was found by Cheapflights users on 2/2. 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.
Σαβ 2/214:55 pm
TYS
-
IAH
Nonstop2h 45m
United Airlines
Δευ 2/238:25 pm
IAH
-
TYS
Nonstop2h 19m
United Airlines
Deal found 2/2$229
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Παρ 3/206:20 am
TYS
-
IAH
1 stop14h 48m
Multiple Airlines
Τρι 3/249:15 pm
IAH
-
TYS
1 stop19h 54m
Multiple Airlines
Deal found 2/2$235
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Τρι 3/3112:02 pm
TYS
-
IAH
1 stop9h 18m
Multiple Airlines
Τετ 4/18:00 am
IAH
-
TYS
1 stop9h 18m
Multiple Airlines
Deal found 2/2$239
This United Airlines deal was found by Cheapflights users on 2/1. 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.
Σαβ 2/214:55 pm
TYS
-
IAH
Nonstop2h 45m
United Airlines
Κυρ 2/228:25 pm
IAH
-
TYS
Nonstop2h 19m
United Airlines
Deal found 2/1$243

Find flight deals from Knoxville to Houston

Discover tips and strategies to find the most affordable flight options for your journey from Knoxville (TYS) to Houston (HO1). 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 Φεβρουάριος 3, 2026.

Round-trip from

$195
(Priceline)

One-way from

$86
(CheapOair)

Popular in

March

Cheapest in

August

Average price

$303
From Knoxville McGhee Tyson to Houston
One-way flight from Knoxville McGhee Tyson to Houston
Highest demand for flights based on searches. 15% potential increase in price ($54 potential increase over avg. RT price).
Cheapest flight prices on average. 4% potential price decrease ($14 potential savings vs. average RT price).
Average for round-trip flights in February 2026

Cheapflights Fare Finder

 
Customize your flight search to find flights from Knoxville to Houston 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 Φεβρουάριος 3, 2026.
Use the filters below to find and compare flights from Knoxville to Houston that are best for you.

Fly from

Knoxville

Fly to

Houston

Route

Depart

Return

Price

KnoxvilleHouston

TYS - IAH

TYSIAH

Knoxville McGhee Tyson

Παρ 2/27

12:55 pm-10:17 am

1 stop22h 22m

Houston George Bush Intcntl

Κυρ 3/1

6:00 am-10:07 pm

1 stop15h 07m

$202

KnoxvilleHouston

TYS - IAH

TYSIAH

Knoxville McGhee Tyson

Σαβ 2/28

8:00 am-6:53 pm

1 stop11h 53m

Houston George Bush Intcntl

Τρι 3/3

7:59 pm-6:26 pm

1 stop21h 27m

$214

KnoxvilleHouston

TYS - IAH

TYSIAH

Knoxville McGhee Tyson

Δευ 3/30

8:58 am-8:40 am

1 stop24h 42m

Houston George Bush Intcntl

Τετ 4/1

8:00 am-6:18 pm

1 stop9h 18m

$218

KnoxvilleHouston

TYS - HOU

TYSHOU

Knoxville McGhee Tyson

Πεμ 4/9

6:54 pm-11:47 pm

1 stop5h 53m

Houston Hobby

Τετ 4/15

6:01 am-12:30 pm

1 stop5h 29m

$229

KnoxvilleHouston

TYS - IAH

TYSIAH

Knoxville McGhee Tyson

Παρ 2/20

4:55 pm-6:40 pm

Nonstop2h 45m

Houston George Bush Intcntl

Δευ 2/23

8:25 pm-11:44 pm

Nonstop2h 19m

$229

KnoxvilleHouston

TYS - IAH

TYSIAH

Knoxville McGhee Tyson

Πεμ 4/9

5:40 am-11:17 am

1 stop6h 37m

Houston George Bush Intcntl

Τετ 4/15

9:48 am-5:08 pm

1 stop6h 20m

$229

KnoxvilleHouston

TYS - IAH

TYSIAH

Knoxville McGhee Tyson

Σαβ 2/21

4:55 pm-6:40 pm

Nonstop2h 45m

Houston George Bush Intcntl

Δευ 2/23

8:25 pm-11:44 pm

Nonstop2h 19m

$229

KnoxvilleHouston

TYS - IAH

TYSIAH

Knoxville McGhee Tyson

Παρ 3/20

6:20 am-8:08 pm

1 stop14h 48m

Houston George Bush Intcntl

Τρι 3/24

9:15 pm-6:09 pm

1 stop19h 54m

$235

KnoxvilleHouston

TYS - IAH

TYSIAH

Knoxville McGhee Tyson

Σαβ 2/21

4:55 pm-6:40 pm

Nonstop2h 45m

Houston George Bush Intcntl

Κυρ 2/22

8:25 pm-11:44 pm

Nonstop2h 19m

$243

KnoxvilleHouston

TYS - HOU

TYSHOU

Knoxville McGhee Tyson

Σαβ 2/21

5:40 am-9:43 am

1 stop5h 03m

Houston Hobby

Κυρ 2/22

6:00 am-11:31 am

1 stop4h 31m

$249

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/1

Showing 1-10 of 34 results
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Best time to book a flight from Knoxville to Houston

Have a flexible travel schedule? Discover the best time to fly to Houston from Knoxville 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 Knoxville to Houston

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

Use this chart to determine the optimal time to book a round-trip flight from Knoxville to Houston. Price data was last updated on January 30, 2026.

The best time to book flights from Knoxville to Houston is 28 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, June is the cheapest month in which you can book a flight from Knoxville to Houston (average of $63). Flying from Knoxville to Houston in September is currently the most expensive (average of $196). 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 TYS to HOU?

Find hourly flight availability from Knoxville to Houston. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated Φεβρουάριος 3, 2026.

When flying from Knoxville to Houston, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing Houston

Get insights into the airlines that provide service to Houston. 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 Houston. Reviews last updated Φεβρουάριος 3, 2026.
See what other customers who have flown with Delta, United Airlines, and American Airlines from Knoxville to Houston have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Entertainment

7.8

Overall

7.9

Crew

8.5

Food

7.2

Boarding

8.1

Comfort

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.

Entertainment

7.8

Overall

7.9

Crew

8.5

Food

7.2

Boarding

8.1

Comfort

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.

Entertainment

7.8

Overall

7.9

Crew

8.5

Food

7.2

Boarding

8.1

Comfort

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.

Entertainment

7.8

Overall

7.9

Crew

8.5

Food

7.2

Boarding

8.1

Comfort

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.

Entertainment

7.8

Overall

7.9

Crew

8.5

Food

7.2

Boarding

8.1

Comfort

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 Knoxville to Houston. 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 from for flights from Knoxville to Houston?

    If you book a flight to Houston from Knoxville, you will be flying from McGhee Tyson, which is the city’s only airport. Knoxville McGhee Tyson (TYS) is located 11.3 mi from the center of Knoxville. There are 0 flights from McGhee Tyson to Houston per day from 4 different airlines.

  • How long is the flight from Knoxville to Houston?

    Departing from Knoxville to Houston will take you 2h 45m. The distance between Knoxville and Houston is about 770 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    Allegiant Air, at $65, was found to be the cheapest airline from Knoxville to Houston.Alternate airlines to your destination round-trip include United Airlines and American Airlines. These flights start at 78% lower than the current average price 3 months from now.

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

    The cheapest airline one-way is Allegiant Air, with whom users have recently found tickets for as low as $48. However, be on the lookout for offers from Frontier and American Airlines, as they are both options that can get you from Knoxville to Houston for a low price.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Knoxville to Houston 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 Knoxville to Houston?

    Currently, June is the cheapest month in which you can book a flight from Knoxville to Houston (average of $63). Flying from Knoxville to Houston in September is currently the most expensive (average of $196). 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

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Alternative routes for Knoxville to Houston

See prices for flight routes from nearby airports that may be better suited for you.

Top 4 airlines flying from Knoxville to Houston

Discover the top 4 airlines that operate flights from Knoxville to Houston. 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 Φεβρουάριος 3, 2026.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$65Average$131FlexibilityNo cancel feeOn-time88%
United AirlinesCheapest$209Average$374FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$228Average$370FlexibilityNo cancel feeOn-time71%
DeltaCheapest$228Average$283FlexibilityNo cancel feeOn-timeN/A

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