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$49+ 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
nov. 27 — dic. 41
jue. 11/27
jue. 12/4
1 adult, Economy
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Cheapflights Tip: The best prices from Knoxville McGhee Tyson to Houston are usually found in August or July, booked 51 days in advance, depart on a Monday or Saturday and return on a Thursday

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 octubre 28, 2025.

This Booking.com deal was found by Cheapflights users on 10/28. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/125:56 pmTYS - HOU
Nonstop2h 24mAllegiant Air
lun. 12/158:10 pmHOU - TYS
Nonstop2h 01mAllegiant Air
Deal found 10/28$92
This Cheapflightsfares deal was found by Cheapflights users on 10/28. 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.
jue. 11/66:30 amTYS - HOU
Nonstop2h 27mAllegiant Air
dom. 11/98:47 amHOU - TYS
Nonstop2h 01mAllegiant Air
Deal found 10/28$96
This Cheapflightsfares deal was found by Cheapflights users on 10/26. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/136:30 amTYS - HOU
Nonstop2h 27mAllegiant Air
dom. 11/168:47 amHOU - TYS
Nonstop2h 01mAllegiant Air
Deal found 10/26$100
This Priceline deal was found by Cheapflights users on 10/27. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/44:52 pmTYS - IAH
1 stop8h 39mFrontier
lun. 12/86:45 amIAH - TYS
1 stop8h 12mFrontier
Deal found 10/27$130
This Cheapflightsfares deal was found by Cheapflights users on 10/26. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/306:30 amTYS - HOU
Nonstop2h 18mAllegiant Air
dom. 11/28:38 amHOU - TYS
Nonstop2h 00mAllegiant Air
Deal found 10/26$134
This Mytrip deal was found by Cheapflights users on 10/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/137:17 pmTYS - IAH
1 stop29h 22mFrontier
dom. 11/166:00 amIAH - TYS
1 stop11h 22mFrontier
Deal found 10/28$152
This Cheapflightsfares deal was found by Cheapflights users on 10/26. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/226:01 pmTYS - HOU
Nonstop2h 24mAllegiant Air
lun. 12/298:20 pmHOU - TYS
Nonstop2h 01mAllegiant Air
Deal found 10/26$166
This Priceline deal was found by Cheapflights users on 10/27. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 12/74:52 pmTYS - IAH
1 stop8h 39mFrontier
lun. 12/86:45 amIAH - TYS
1 stop8h 12mFrontier
Deal found 10/27$169
This Booking.com deal was found by Cheapflights users on 10/27. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/67:17 pmTYS - IAH
1 stop16h 20mFrontier
sáb. 11/88:48 pmIAH - TYS
1 stop20h 34mFrontier
Deal found 10/27$188
This Kiwi.com deal was found by Cheapflights users on 10/28. 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.
mié. 12/106:09 pmTYS - IAH
1 stop14h 45mMultiple Airlines
jue. 12/117:25 pmIAH - TYS
1 stop12h 08mMultiple Airlines
Deal found 10/28$202
This United Airlines deal was found by Cheapflights users on 10/27. 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.
jue. 12/411:42 amTYS - IAH
Nonstop2h 43mUnited Airlines
lun. 12/88:30 pmIAH - TYS
Nonstop2h 14mUnited Airlines
Deal found 10/27$209
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/55:34 pmTYS - IAH
1 stop25h 55mMultiple Airlines
dom. 12/146:45 amIAH - TYS
1 stop8h 12mMultiple Airlines
Deal found 10/27$210

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 octubre 28, 2025.

Round-trip from

$92
(Booking.com)

One-way from

$49
(Cheapflightsfares)

Popular in

March

Cheapest in

August

Average price

$283
From Knoxville McGhee Tyson to Houston
Search Deals
One-way flight from Knoxville McGhee Tyson to Houston
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($54 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
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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 octubre 28, 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

vie. 12/12

5:56 pm-7:20 pm

Nonstop2h 24m

Houston Hobby

lun. 12/15

8:10 pm-11:11 pm

Nonstop2h 01m

$92

KnoxvilleHouston

TYS - HOU

TYSHOU

Knoxville McGhee Tyson

jue. 11/13

6:30 am-7:57 am

Nonstop2h 27m

Houston Hobby

dom. 11/16

8:47 am-11:48 am

Nonstop2h 01m

$96

KnoxvilleHouston

TYS - IAH

TYSIAH

Knoxville McGhee Tyson

mié. 12/10

6:09 pm-7:54 am

1 stop14h 45m

Houston George Bush Intcntl

jue. 12/11

7:25 pm-8:33 am

1 stop12h 08m

$202

KnoxvilleHouston

TYS - IAH

TYSIAH

Knoxville McGhee Tyson

vie. 12/5

5:34 pm-6:29 pm

1 stop25h 55m

Houston George Bush Intcntl

dom. 12/14

7:25 pm-8:33 am

1 stop12h 08m

$221

KnoxvilleHouston

TYS - HOU

TYSHOU

Knoxville McGhee Tyson

vie. 12/5

5:40 am-9:34 am

1 stop4h 54m

Houston Hobby

dom. 12/7

6:00 am-1:44 pm

1 stop6h 44m

$229

KnoxvilleHouston

TYS - HOU

TYSHOU

Knoxville McGhee Tyson

dom. 1/18

4:41 pm-10:46 pm

1 stop7h 05m

Houston Hobby

dom. 1/25

6:00 am-11:31 am

1 stop4h 31m

$229

KnoxvilleHouston

TYS - HOU

TYSHOU

Knoxville McGhee Tyson

vie. 2/6

5:30 am-10:21 am

1 stop5h 51m

Houston Hobby

lun. 2/9

5:04 pm-11:45 pm

1 stop5h 41m

$229

KnoxvilleHouston

TYS - IAH

TYSIAH

Knoxville McGhee Tyson

vie. 12/5

5:40 am-8:51 am

1 stop4h 11m

Houston George Bush Intcntl

dom. 12/7

7:01 am-1:44 pm

1 stop5h 43m

$229

KnoxvilleHouston

TYS - IAH

TYSIAH

Knoxville McGhee Tyson

dom. 12/7

7:59 pm-11:59 pm

1 stop5h 00m

Houston George Bush Intcntl

jue. 12/18

7:01 am-2:52 pm

1 stop6h 51m

$229

KnoxvilleHouston

TYS - IAH

TYSIAH

Knoxville McGhee Tyson

jue. 11/13

5:38 pm-5:26 pm

1 stop24h 48m

Houston George Bush Intcntl

dom. 11/16

8:35 pm-6:36 pm

2 stops21h 01m

$246

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Showing 1-10 of 30 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 October 24, 2025.

The best time to book flights from Knoxville to Houston is 51 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 $62). 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 octubre 28, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 28% on flights from Knoxville to Houston by exploring options for tickets in the evening.

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 Thursday afternoons when fares are most often at their lowest. Sunday 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 octubre 28, 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
7.9
Good
7,994 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Comfort

7.9

Overall

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Delta
7.9
Good
7,994 reviews
Delta
7.9
Good
7,994 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Comfort

7.9

Overall

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
United Airlines
7.4
Good
9,001 reviews
Delta
7.9
Good
7,994 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Comfort

7.9

Overall

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
American Airlines
7.2
Good
11,032 reviews
Delta
7.9
Good
7,994 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Comfort

7.9

Overall

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Allegiant Air
7.2
Good
695 reviews
Delta
7.9
Good
7,994 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Comfort

7.9

Overall

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

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 $79, 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 $48. On average you can expect to pay $89. The most popular route, (Knoxville McGhee Tyson - Houston Hobby), can usually be booked for $97.

  • 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 $62). 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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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 octubre 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$79Average$131FlexibilityNo cancel feeOn-time88%
United AirlinesCheapest$223Average$358FlexibilityNo cancel feeOn-time69%
DeltaCheapest$228Average$283FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$228Average$369FlexibilityNo cancel feeOn-time71%

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