Houston

$50+ 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 6/29. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — HOU
Jun 4 — Jun 111
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Cheapflights Tip: The best prices from Knoxville McGhee Tyson to Houston are usually found in August or July, booked 70 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 May 5, 2026.

This Cheapflightsfares deal was found by Cheapflights users on 4/30. 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 6/85:30 pm
TYS
-
HOU
Nonstop2h 11m
Allegiant Air
Fri 6/197:44 pm
HOU
-
TYS
Nonstop2h 09m
Allegiant Air
Deal found 4/30$87
This Cheapflightsfares deal was found by Cheapflights users on 5/4. 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 6/85:30 pm
TYS
-
HOU
Nonstop2h 11m
Allegiant Air
Mon 6/157:31 pm
HOU
-
TYS
Nonstop2h 09m
Allegiant Air
Deal found 5/4$90
This Kiwi.com deal was found by Cheapflights users on 5/2. 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.
Fri 7/175:32 pm
TYS
-
HOU
Nonstop2h 17m
Allegiant Air
Mon 7/207:39 pm
HOU
-
TYS
Nonstop2h 09m
Allegiant Air
Deal found 5/2$101
This Cheapflightsfares deal was found by Cheapflights users on 5/2. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/15:30 pm
TYS
-
HOU
Nonstop2h 19m
Allegiant Air
Mon 6/157:31 pm
HOU
-
TYS
Nonstop2h 09m
Allegiant Air
Deal found 5/2$107
This Booking.com deal was found by Cheapflights users on 4/30. 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.
Fri 5/295:30 pm
TYS
-
HOU
Nonstop2h 19m
Allegiant Air
Mon 6/17:39 pm
HOU
-
TYS
Nonstop2h 03m
Allegiant Air
Deal found 4/30$124
This Cheapflightsfares deal was found by Cheapflights users on 5/2. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/125:30 pm
TYS
-
HOU
Nonstop2h 11m
Allegiant Air
Mon 6/157:31 pm
HOU
-
TYS
Nonstop2h 09m
Allegiant Air
Deal found 5/2$129
This Cheapflightsfares deal was found by Cheapflights users on 4/30. 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 10/166:28 pm
TYS
-
HOU
Nonstop2h 17m
Allegiant Air
Fri 10/235:01 pm
HOU
-
TYS
Nonstop2h 04m
Allegiant Air
Deal found 4/30$148
This Mytrip deal was found by Cheapflights users on 5/2. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/295:30 pm
TYS
-
HOU
Nonstop2h 19m
Allegiant Air
Fri 6/57:31 pm
HOU
-
TYS
Nonstop2h 09m
Allegiant Air
Deal found 5/2$153
This Cheapflightsfares deal was found by Cheapflights users on 5/2. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/225:30 pm
TYS
-
HOU
Nonstop2h 19m
Allegiant Air
Mon 5/257:39 pm
HOU
-
TYS
Nonstop2h 03m
Allegiant Air
Deal found 5/2$165
This CheapOair deal was found by Cheapflights users on 5/2. 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.
Mon 6/88:32 pm
TYS
-
IAH
1 stop15h 10m
Frontier
Tue 6/96:14 pm
IAH
-
TYS
1 stop24h 23m
Frontier
Deal found 5/2$191
This Kiwi.com deal was found by Cheapflights users on 5/2. 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.
Thu 7/163:38 pm
TYS
-
HOU
2 stops25h 24m
Allegiant Air
Mon 7/207:39 pm
HOU
-
TYS
Nonstop2h 09m
Allegiant Air
Deal found 5/2$207
This CheapOair deal was found by Cheapflights users on 4/30. 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.
Wed 6/178:32 pm
TYS
-
IAH
1 stop15h 10m
Frontier
Sun 6/2110:08 pm
IAH
-
TYS
1 stop20h 29m
Frontier
Deal found 4/30$221

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 May 5, 2026.

Round-trip from

$87
(Cheapflightsfares)

One-way from

$50
(Cheapflightsfares)

Popular in

March

Cheapest in

August

Average price

$334
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 ($62 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($10 potential savings vs. average RT price).
Average for round-trip flights in May 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 May 5, 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
Quickest round-trip

KnoxvilleHouston

TYS - HOU

TYSHOU

Knoxville McGhee Tyson

Mon 5/25

5:30 pm-6:49 pm

Nonstop2h 19m

Houston Hobby

Mon 6/1

7:39 pm-10:42 pm

Nonstop2h 03m

$165

KnoxvilleHouston

TYS - HOU

TYSHOU

Knoxville McGhee Tyson

Mon 6/8

7:35 am-12:12 pm

1 stop5h 37m

Houston Hobby

Mon 6/15

10:09 am-5:15 pm

1 stop6h 06m

$289

KnoxvilleHouston

TYS - IAH

TYSIAH

Knoxville McGhee Tyson

Wed 5/20

11:35 am-1:12 pm

Nonstop2h 37m

Houston George Bush Intcntl

Wed 5/27

7:50 pm-11:12 pm

Nonstop2h 22m

$289

KnoxvilleHouston

TYS - HOU

TYSHOU

Knoxville McGhee Tyson

Mon 6/1

5:59 pm-10:26 pm

1 stop5h 27m

Houston Hobby

Mon 6/15

6:03 am-11:09 am

1 stop4h 06m

$289

KnoxvilleHouston

TYS - HOU

TYSHOU

Knoxville McGhee Tyson

Sat 9/5

4:00 pm-9:35 pm

1 stop6h 35m

Houston Hobby

Wed 9/16

10:05 am-3:07 pm

1 stop4h 02m

$289

KnoxvilleHouston

TYS - HOU

TYSHOU

Knoxville McGhee Tyson

Thu 7/16

11:55 am-4:23 pm

1 stop5h 28m

Houston Hobby

Tue 7/21

6:00 am-11:05 am

1 stop4h 05m

$289

KnoxvilleHouston

TYS - IAH

TYSIAH

Knoxville McGhee Tyson

Thu 6/18

11:55 am-3:13 pm

1 stop4h 18m

Houston George Bush Intcntl

Thu 6/25

8:05 am-2:49 pm

1 stop5h 44m

$289

KnoxvilleHouston

TYS - IAH

TYSIAH

Knoxville McGhee Tyson

Fri 7/3

3:54 pm-9:34 pm

1 stop6h 40m

Houston George Bush Intcntl

Sun 7/5

7:02 am-2:49 pm

1 stop6h 47m

$289

KnoxvilleHouston

TYS - HOU

TYSHOU

Knoxville McGhee Tyson

Thu 5/21

5:40 am-9:32 am

1 stop4h 52m

Houston Hobby

Tue 5/26

5:02 pm-11:56 pm

1 stop5h 54m

$309

KnoxvilleHouston

TYS - HOU

TYSHOU

Knoxville McGhee Tyson

Fri 7/17

6:05 pm-9:51 pm

1 stop4h 46m

Houston Hobby

Sun 7/19

6:00 am-11:05 am

1 stop4h 05m

$314

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Showing 1-10 of 42 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

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

The best time to book flights from Knoxville to Houston is 82 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 $47). 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 May 5, 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?

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 May 5, 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.

Crew

8.5

Comfort

7.9

Boarding

8.1

Overall

7.9

Food

7.2

Entertainment

7.8

Reviews

1 / 20
4.0
Okay

Joel,May 2026

ATL - JAX

The flight was delivered 50 minutes and taxing took what felt like 20 minutes to takeoff.

Crew

8.5

Comfort

7.9

Boarding

8.1

Overall

7.9

Food

7.2

Entertainment

7.8

Reviews

1 / 20
4.0
Okay

Joel,May 2026

ATL - JAX

The flight was delivered 50 minutes and taxing took what felt like 20 minutes to takeoff.

Crew

8.5

Comfort

7.9

Boarding

8.1

Overall

7.9

Food

7.2

Entertainment

7.8

Reviews

1 / 20
4.0
Okay

Joel,May 2026

ATL - JAX

The flight was delivered 50 minutes and taxing took what felt like 20 minutes to takeoff.

Crew

8.5

Comfort

7.9

Boarding

8.1

Overall

7.9

Food

7.2

Entertainment

7.8

Reviews

1 / 20
4.0
Okay

Joel,May 2026

ATL - JAX

The flight was delivered 50 minutes and taxing took what felt like 20 minutes to takeoff.

Crew

8.5

Comfort

7.9

Boarding

8.1

Overall

7.9

Food

7.2

Entertainment

7.8

Reviews

1 / 20
4.0
Okay

Joel,May 2026

ATL - JAX

The flight was delivered 50 minutes and taxing took what felt like 20 minutes to takeoff.

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 19m. 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 $50, 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 83% 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 $47). 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 May 5, 2026.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$50Average$128FlexibilityNo cancel feeOn-time88%
United AirlinesCheapest$209Average$352FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$228Average$363FlexibilityNo cancel feeOn-time71%
DeltaCheapest$228Average$288FlexibilityNo cancel feeOn-timeN/A

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