Houston

$43+ 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 8/28. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — HOU
Jul 19 — Jul 261
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Cheapflights Tip: The best prices from Knoxville McGhee Tyson to Houston are usually found in June or August, booked 70 days in advance, depart on a Sunday or Monday and return on a Saturday

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 June 19, 2026.

This Cheapflightsfares deal was found by Cheapflights users on 6/17. 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 8/145:54 pm
TYS
-
HOU
Nonstop2h 19m
Allegiant Air
Mon 8/178:03 pm
HOU
-
TYS
Nonstop2h 09m
Allegiant Air
Deal found 6/17$81
This Cheapflightsfares deal was found by Cheapflights users on 6/19. 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 7/205:32 pm
TYS
-
HOU
Nonstop2h 17m
Allegiant Air
Mon 7/277:39 pm
HOU
-
TYS
Nonstop2h 09m
Allegiant Air
Deal found 6/19$93
This Cheapflightsfares deal was found by Cheapflights users on 6/18. 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 7/275:32 pm
TYS
-
HOU
Nonstop2h 17m
Allegiant Air
Fri 7/317:39 pm
HOU
-
TYS
Nonstop2h 09m
Allegiant Air
Deal found 6/18$100
This Cheapflightsfares deal was found by Cheapflights users on 6/18. 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 10/212:57 pm
TYS
-
HOU
Nonstop2h 17m
Allegiant Air
Mon 10/57:19 pm
HOU
-
TYS
Nonstop2h 04m
Allegiant Air
Deal found 6/18$107
This Kiwi.com deal was found by Cheapflights users on 6/18. 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 11/1312:49 pm
TYS
-
HOU
Nonstop2h 20m
Allegiant Air
Mon 11/165:09 pm
HOU
-
TYS
Nonstop2h 07m
Allegiant Air
Deal found 6/18$149
This Cheapflightsfares deal was found by Cheapflights users on 6/15. 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 7/135:32 pm
TYS
-
HOU
Nonstop2h 17m
Allegiant Air
Fri 7/247:39 pm
HOU
-
TYS
Nonstop2h 09m
Allegiant Air
Deal found 6/15$152
This Cheapflightsfares deal was found by Cheapflights users on 6/18. 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 7/175:32 pm
TYS
-
HOU
Nonstop2h 17m
Allegiant Air
Fri 7/317:39 pm
HOU
-
TYS
Nonstop2h 09m
Allegiant Air
Deal found 6/18$155
This Cheapflightsfares deal was found by Cheapflights users on 6/18. 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 7/175:32 pm
TYS
-
HOU
Nonstop2h 17m
Allegiant Air
Fri 7/247:39 pm
HOU
-
TYS
Nonstop2h 09m
Allegiant Air
Deal found 6/18$165
This Cheapflightsfares deal was found by Cheapflights users on 6/17. 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 7/35:32 pm
TYS
-
HOU
Nonstop2h 17m
Allegiant Air
Mon 7/67:39 pm
HOU
-
TYS
Nonstop2h 09m
Allegiant Air
Deal found 6/17$171
This Southwest deal was found by Cheapflights users on 6/16. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/176:40 am
TYS
-
HOU
1 stop4h 25m
Southwest
Tue 7/217:45 am
HOU
-
TYS
1 stop8h 15m
Southwest
Deal found 6/16$211
This Kiwi.com deal was found by Cheapflights users on 6/16. 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 7/1712:40 pm
TYS
-
IAH
2 stops19h 40m
Multiple Airlines
Tue 7/218:20 am
IAH
-
TYS
1 stop6h 50m
Multiple Airlines
Deal found 6/16$224
This Kiwi.com deal was found by Cheapflights users on 6/16. 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 7/145:00 pm
TYS
-
IAH
1 stop22h 50m
Multiple Airlines
Tue 7/218:20 am
IAH
-
TYS
1 stop6h 50m
Multiple Airlines
Deal found 6/16$225

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 June 19, 2026.

Round-trip from

$81
(Cheapflightsfares)

One-way from

$43
(Kiwi.com)

Popular in

March

Cheapest in

June

Average price

$196
From Knoxville McGhee Tyson to Houston
One-way flight from Knoxville McGhee Tyson to Houston
Highest demand for flights based on searches. 16% potential increase in price ($56 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($11 potential savings vs. average RT price).
Average for round-trip flights in June 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 June 19, 2026.
Use the filters below to find and compare flights from Knoxville to Houston that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

KnoxvilleHouston

TYS - HOU

TYSHOU

Knoxville McGhee Tyson

Mon 7/20

7:45 pm-12:50 am

1 stop6h 05m

Houston Hobby

Mon 7/27

5:05 am-1:45 pm

1 stop7h 40m

$211

KnoxvilleHouston

TYS - HOU

TYSHOU

Knoxville McGhee Tyson

Wed 7/8

12:45 pm-7:10 pm

1 stop7h 25m

Houston Hobby

Thu 7/9

3:25 pm-10:35 pm

1 stop6h 10m

$240

KnoxvilleHouston

TYS - HOU

TYSHOU

Knoxville McGhee Tyson

Tue 7/21

12:45 pm-7:10 pm

1 stop7h 25m

Houston Hobby

Tue 7/28

11:20 am-6:20 pm

1 stop6h 00m

$267

KnoxvilleHouston

TYS - HOU

TYSHOU

Knoxville McGhee Tyson

Tue 10/6

3:55 pm-9:43 pm

1 stop6h 48m

Houston Hobby

Tue 10/13

5:35 pm-11:46 pm

1 stop5h 11m

$289

KnoxvilleHouston

TYS - IAH

TYSIAH

Knoxville McGhee Tyson

Fri 11/13

5:57 pm-9:10 pm

1 stop4h 13m

Houston George Bush Intcntl

Sun 11/15

5:55 am-1:23 pm

1 stop6h 28m

$289

KnoxvilleHouston

TYS - HOU

TYSHOU

Knoxville McGhee Tyson

Fri 9/18

2:05 pm-5:10 pm

1 stop4h 05m

Houston Hobby

Sun 9/20

7:35 am-3:00 pm

1 stop6h 25m

$289

KnoxvilleHouston

TYS - IAH

TYSIAH

Knoxville McGhee Tyson

Sat 10/3

7:15 am-8:44 am

Nonstop2h 29m

Houston George Bush Intcntl

Mon 10/12

6:35 pm-9:55 pm

Nonstop2h 20m

$290

KnoxvilleHouston

TYS - HOU

TYSHOU

Knoxville McGhee Tyson

Mon 7/27

6:40 am-12:00 pm

2 stops6h 20m

Houston Hobby

Thu 7/30

5:05 am-1:45 pm

1 stop7h 40m

$294

KnoxvilleHouston

TYS - HOU

TYSHOU

Knoxville McGhee Tyson

Fri 9/4

4:50 pm-12:15 am

1 stop8h 25m

Houston Hobby

Sun 9/6

7:10 am-1:50 pm

2 stops5h 40m

$294
Quickest round-trip

KnoxvilleHouston

TYS - IAH

TYSIAH

Knoxville McGhee Tyson

Sat 10/17

7:15 am-8:44 am

Nonstop2h 29m

Houston George Bush Intcntl

Sun 10/25

8:05 pm-11:19 pm

Nonstop2h 14m

$306

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/15

Showing 1-10 of 37 resultsSorted by cheapest first
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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

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

Currently, October is the cheapest month in which you can book a flight from Knoxville to Houston (average of $48). Flying from Knoxville to Houston in February is currently the most expensive (average of $209). 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 June 19, 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.

How much does it cost to fly round-trip from Knoxville to Houston?

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

The best time to book flights from Knoxville to Houston is 81 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.

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 June 19, 2026.
See what other customers who have flown with Delta,United Airlines, andAllegiant Air 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.

Boarding

8.1

Crew

8.5

Comfort

7.8

Food

7.2

Entertainment

7.8

Overall

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

Boarding

8.1

Crew

8.5

Comfort

7.8

Food

7.2

Entertainment

7.8

Overall

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

Boarding

8.1

Crew

8.5

Comfort

7.8

Food

7.2

Entertainment

7.8

Overall

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

Boarding

8.1

Crew

8.5

Comfort

7.8

Food

7.2

Entertainment

7.8

Overall

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

Boarding

8.1

Crew

8.5

Comfort

7.8

Food

7.2

Entertainment

7.8

Overall

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

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 29m. 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 $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 73% 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 $52. 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.

  • What are the cheapest flights from Knoxville to Houston?

    The cheapest flight price from Knoxville to Houston is $52. On average you can expect to pay $113. The most popular route, (Knoxville McGhee Tyson - Houston George Bush Intcntl), can usually be booked for $269.

  • 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, October is the cheapest month in which you can book a flight from Knoxville to Houston (average of $48). Flying from Knoxville to Houston in February is currently the most expensive (average of $209). 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

Browse thousands of different options on Cheapflights for your next trip

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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 June 19, 2026.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$79Average$130FlexibilityNo cancel feeOn-time88%
United AirlinesCheapest$209Average$354FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$228Average$307FlexibilityNo cancel feeOn-time71%
DeltaCheapest$228Average$294FlexibilityNo cancel feeOn-timeN/A

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