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$51+ 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 12/12. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — HOU
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheapflights Tip: The best prices from Knoxville McGhee Tyson to Houston are usually found in July or August, booked 56 days in advance, depart on a Tuesday or Monday and return on a Wednesday

Cheap 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 September 11, 2025.

Round-trip from

$82
(Cheapflightsfares)

One-way from

$51
(Cheapflightsfares)

Popular in

March

Cheapest in

July

Average price

$297
From Knoxville McGhee Tyson to Houston
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One-way flight from Knoxville McGhee Tyson to Houston
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Highest demand for flights based on searches. 12% potential increase in price ($47 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find 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 September 11, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 9/9. 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.
Fri 12/125:56 pmTYS - HOU
Nonstop2h 24mAllegiant Air
Mon 12/158:10 pmHOU - TYS
Nonstop2h 01mAllegiant Air
Deal found 9/9$82
This Kiwi.com deal was found by Cheapflights users on 9/9. 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.
Thu 10/97:20 amTYS - HOU
Nonstop2h 18mAllegiant Air
Sun 10/199:28 amHOU - TYS
Nonstop2h 00mAllegiant Air
Deal found 9/9$125
This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
Thu 10/237:20 amTYS - HOU
Nonstop2h 18mAllegiant Air
Thu 10/308:38 amHOU - TYS
Nonstop2h 00mAllegiant Air
Deal found 9/10$126
This Cheapflightsfares deal was found by Cheapflights users on 9/10. 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.
Thu 11/136:30 amTYS - HOU
Nonstop2h 27mAllegiant Air
Sun 11/168:47 amHOU - TYS
Nonstop2h 01mAllegiant Air
Deal found 9/10$130
This Cheapflightsfares deal was found by Cheapflights users on 9/11. 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.
Thu 10/167:20 amTYS - HOU
Nonstop2h 18mAllegiant Air
Sun 10/199:28 amHOU - TYS
Nonstop2h 00mAllegiant Air
Deal found 9/11$161
This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
Tue 9/3011:25 amTYS - IAH
1 stop29h 11mMultiple Airlines
Fri 10/311:39 amIAH - TYS
1 stop10h 57mMultiple Airlines
Deal found 9/10$183
This Kiwi.com deal was found by Cheapflights users on 9/9. 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.
Thu 9/255:55 pmTYS - IAH
1 stop7h 01mMultiple Airlines
Tue 9/304:36 pmIAH - TYS
1 stop25h 48mMultiple Airlines
Deal found 9/9$189
This Kiwi.com deal was found by Cheapflights users on 9/9. 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.
Fri 10/315:44 pmTYS - IAH
1 stop16h 35mMultiple Airlines
Sat 11/88:47 pmIAH - TYS
1 stop15h 57mMultiple Airlines
Deal found 9/9$195
This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
Thu 11/137:17 pmTYS - IAH
1 stop29h 22mMultiple Airlines
Mon 11/1710:04 amIAH - TYS
1 stop7h 33mMultiple Airlines
Deal found 9/10$200
This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
Fri 10/1011:32 amTYS - IAH
1 stop13h 04mMultiple Airlines
Sun 10/129:04 pmIAH - TYS
1 stop25h 12mMultiple Airlines
Deal found 9/10$201
This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
Wed 10/13:21 pmTYS - IAH
1 stop24h 43mMultiple Airlines
Fri 10/311:39 amIAH - TYS
1 stop10h 57mMultiple Airlines
Deal found 9/10$202
This Kiwi.com deal was found by Cheapflights users on 9/11. 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.
Thu 12/44:47 pmTYS - IAH
1 stop8h 00mMultiple Airlines
Sat 12/611:32 amIAH - TYS
1 stop24h 39mMultiple Airlines
Deal found 9/11$204

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 September 11, 2025.
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 - HOU

TYSHOU

Knoxville McGhee Tyson

Fri 12/12

5:56 pm-7:20 pm

Nonstop2h 24m

Houston Hobby

Mon 12/15

8:10 pm-11:11 pm

Nonstop2h 01m

$82

KnoxvilleHouston

TYS - HOU

TYSHOU

Knoxville McGhee Tyson

Thu 10/9

7:20 am-8:38 am

Nonstop2h 18m

Houston Hobby

Sun 10/19

9:28 am-12:28 pm

Nonstop2h 00m

$125

KnoxvilleHouston

TYS - HOU

TYSHOU

Knoxville McGhee Tyson

Thu 11/13

6:30 am-7:57 am

Nonstop2h 27m

Houston Hobby

Sun 11/16

8:47 am-11:48 am

Nonstop2h 01m

$130

KnoxvilleHouston

TYS - HOU

TYSHOU

Knoxville McGhee Tyson

Thu 10/16

7:20 am-8:38 am

Nonstop2h 18m

Houston Hobby

Sun 10/19

9:28 am-12:28 pm

Nonstop2h 00m

$161

KnoxvilleHouston

TYS - IAH

TYSIAH

Knoxville McGhee Tyson

Sat 10/11

9:30 am-11:01 am

Nonstop2h 31m

Houston George Bush Intcntl

Sat 10/18

2:50 pm-6:10 pm

Nonstop2h 20m

$209

KnoxvilleHouston

TYS - IAH

TYSIAH

Knoxville McGhee Tyson

Fri 10/10

7:15 am-8:46 am

Nonstop2h 31m

Houston George Bush Intcntl

Wed 10/15

8:20 pm-11:43 pm

Nonstop2h 23m

$225

KnoxvilleHouston

TYS - HOU

TYSHOU

Knoxville McGhee Tyson

Tue 10/7

2:55 pm-5:48 pm

1 stop3h 53m

Houston Hobby

Tue 10/14

10:13 am-2:43 pm

1 stop3h 30m

$229

KnoxvilleHouston

TYS - IAH

TYSIAH

Knoxville McGhee Tyson

Thu 11/6

5:07 pm-12:42 am

1 stop8h 35m

Houston George Bush Intcntl

Mon 11/10

7:30 am-4:37 pm

1 stop8h 07m

$229

KnoxvilleHouston

TYS - HOU

TYSHOU

Knoxville McGhee Tyson

Wed 10/1

12:01 pm-5:40 pm

1 stop6h 39m

Houston Hobby

Sat 10/4

6:37 pm-11:44 pm

1 stop4h 07m

$229

KnoxvilleHouston

TYS - HOU

TYSHOU

Knoxville McGhee Tyson

Wed 10/8

5:16 pm-11:00 pm

1 stop6h 44m

Houston Hobby

Tue 10/14

6:00 am-1:42 pm

1 stop6h 42m

$229

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 35 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 August 29, 2025.

The best time to book flights from Knoxville to Houston is 56 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, September is the cheapest month in which you can book a flight from Knoxville to Houston (average of $230). Flying from Knoxville to Houston in March is currently the most expensive (average of $331). 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 September 11, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 65% on flights from Knoxville to Houston by exploring options for tickets at noon.

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

Use this chart to determine the cheapest time to fly round-trip from Knoxville to Houston. Price data was last updated on December 16, 2024.

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

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 September 11, 2025.
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.
Delta
8.0
Very good
7,960 reviews

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,960 reviews
Delta
8.0
Very good
7,960 reviews

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,937 reviews
Delta
8.0
Very good
7,960 reviews

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,960 reviews

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Allegiant Air
7.2
Good
702 reviews
Delta
8.0
Very good
7,960 reviews

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 24m. The distance between Knoxville and Houston is about 781 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 $82, 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 74% lower than the current average price 3 months from now.

  • What are the cheapest flights from Knoxville to Houston?

    The cheapest flight price from Knoxville to Houston is $62. On average you can expect to pay $101. The most popular route, (Knoxville McGhee Tyson - Houston Hobby), can usually be booked for $82.

  • 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, September is the cheapest month in which you can book a flight from Knoxville to Houston (average of $230). Flying from Knoxville to Houston in March is currently the most expensive (average of $331). 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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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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$82Average$132FlexibilityNo cancel feeOn-time88%
United AirlinesCheapest$225Average$361FlexibilityNo cancel feeOn-time69%
DeltaCheapest$228Average$281FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$228Average$360FlexibilityNo cancel feeOn-time71%

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