HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Houston

$105+ 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 5/14. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — HOU
May 6 — May 131
Tue 5/6
Tue 5/13
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Knoxville to Houston with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Knoxville McGhee Tyson to Houston are usually found in August or October, booked 56 days in advance, depart on a Wednesday 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 May 1, 2025.

Round-trip from

$108
(Kiwi.com)

One-way from

$105
(Delta)

Popular in

March

Cheapest in

August

Average price

$322
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. 12% potential increase in price ($47 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2025
Search Deals

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 May 1, 2025.

This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/136:20 amTYS - IAH
1 stop7h 57mDelta
Wed 5/216:00 amIAH - TYS
1 stop4h 23mDelta
Deal found 4/30$209
This Mytrip deal was found by Cheapflights users on 4/29. 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.
Thu 5/158:59 pmTYS - IAH
1 stop28h 08mMultiple Airlines
Sun 5/185:53 pmIAH - TYS
1 stop23h 19mMultiple Airlines
Deal found 4/29$212
This United Airlines deal was found by Cheapflights users on 4/29. 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.
Thu 5/159:15 amTYS - IAH
Nonstop2h 39mUnited Airlines
Wed 5/218:25 pmIAH - TYS
Nonstop2h 21mUnited Airlines
Deal found 4/29$219
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/86:28 pmTYS - HOU
1 stop6h 30mAmerican Airlines
Sun 5/115:00 amHOU - TYS
1 stop5h 41mAmerican Airlines
Deal found 4/30$239
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/65:30 amTYS - HOU
1 stop5h 15mDelta
Tue 5/136:00 amHOU - TYS
1 stop4h 23mDelta
Deal found 4/30$259
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/295:15 amTYS - IAH
1 stop5h 01mAmerican Airlines
Sat 7/55:00 amIAH - TYS
1 stop7h 12mAmerican Airlines
Deal found 4/30$259
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/265:25 pmTYS - IAH
1 stop7h 18mFrontier
Sun 6/296:00 amIAH - TYS
1 stop9h 29mFrontier
Deal found 4/30$332
This Alaska Airlines deal was found by Cheapflights users on 4/29. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/275:05 amTYS - IAH
2 stops26h 15mAlaska Airlines
Sun 6/16:00 amIAH - TYS
2 stops34h 31mAlaska Airlines
Deal found 4/29$1,069

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 1, 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 - IAH

TYSIAH

Knoxville McGhee Tyson

Tue 5/13

6:20 am-1:17 pm

1 stop7h 57m

Houston George Bush Intcntl

Wed 5/21

6:00 am-11:23 am

1 stop4h 23m

$209

KnoxvilleHouston

TYS - IAH

TYSIAH

Knoxville McGhee Tyson

Mon 8/11

8:52 am-8:28 am

1 stop24h 36m

Houston George Bush Intcntl

Sat 8/23

7:00 pm-2:34 pm

1 stop18h 34m

$221

KnoxvilleHouston

TYS - IAH

TYSIAH

Knoxville McGhee Tyson

Sat 7/5

8:22 pm-12:02 am

1 stop4h 40m

Houston George Bush Intcntl

Wed 7/9

7:17 am-3:50 pm

1 stop7h 33m

$229

KnoxvilleHouston

TYS - HOU

TYSHOU

Knoxville McGhee Tyson

Tue 5/13

6:28 pm-11:58 pm

1 stop6h 30m

Houston Hobby

Wed 5/21

5:00 am-11:41 am

1 stop5h 41m

$239

KnoxvilleHouston

TYS - IAH

TYSIAH

Knoxville McGhee Tyson

Sun 5/11

7:05 am-8:44 am

Nonstop2h 39m

Houston George Bush Intcntl

Sat 5/17

2:35 pm-5:56 pm

Nonstop2h 21m

$259

KnoxvilleHouston

TYS - IAH

TYSIAH

Knoxville McGhee Tyson

Thu 6/26

5:25 pm-11:43 pm

1 stop7h 18m

Houston George Bush Intcntl

Sun 6/29

6:00 am-4:29 pm

1 stop9h 29m

$332

KnoxvilleHouston

TYS - HOU

TYSHOU

Knoxville McGhee Tyson

Sun 5/11

5:45 am-9:33 am

1 stop4h 48m

Houston Hobby

Sat 5/17

6:00 am-11:30 am

1 stop4h 30m

$389

KnoxvilleHouston

TYS - IAH

TYSIAH

Knoxville McGhee Tyson

Tue 5/27

5:05 am-6:20 am

2 stops26h 15m

Houston George Bush Intcntl

Sun 6/1

6:00 am-5:31 pm

2 stops34h 31m

$1,069

KnoxvilleHouston

TYS - HOU

TYSHOU

Knoxville McGhee Tyson

Wed 5/14

5:45 am-9:33 am

1 stop4h 48m

$105

KnoxvilleHouston

TYS - IAH

TYSIAH

Knoxville McGhee Tyson

Wed 5/21

5:45 am-8:45 am

1 stop4h 00m

$105

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Showing 1-10 of 16 results
1
2

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 April 25, 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 $332). 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 1, 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 62% on flights from Knoxville to Houston by exploring options for tickets in the morning.

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 Monday mornings 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.

Rainfall in Houston by month

Plan your trip to Houston by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Houston ranges from 3.2 - 5.9 inches per month. June is typically the wettest month, when rainfall can reach 5.9 in. February is typically the driest time to visit Houston when rainfall is around 3.2 in.

Temperature in Houston by month

Plan your trip to Houston by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Houston, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 53.6 F).

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 1, 2025.
See what other customers who have flown with Alaska Airlines, Delta and United Airlines from Knoxville to Houston have to say. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,968 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.1

Crew

8.5

Comfort

7.9

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
9,968 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.1

Crew

8.5

Comfort

7.9

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,934 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.1

Crew

8.5

Comfort

7.9

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,696 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.1

Crew

8.5

Comfort

7.9

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Allegiant Air
7.3
Good
734 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.1

Crew

8.5

Comfort

7.9

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.1

Crew

8.5

Comfort

7.9

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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.

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

    Allegiant Air, at $108, was found to be the cheapest airline from Knoxville to Houston.Alternate airlines to your destination round-trip include Delta and American Airlines. These flights start at 65% 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 Delta, with whom users have recently found tickets for as low as $105. However, be on the lookout for offers from American Airlines and Frontier, 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 $91. On average you can expect to pay $95. The most popular route, (Knoxville McGhee Tyson - Houston Hobby), can usually be booked for $108.

  • 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 $332). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Knoxville to Houston

See prices for flight routes from nearby airports that may be better suited for you.
Nashville to Dallas/Fort Worth flights
Memphis to Hobby flights
Memphis to George Bush Intcntl flights
Memphis to Dallas/Fort Worth flights
Nashville to Hobby flights
Nashville to Love Field flights
Nashville to Austin flights
Knoxville to Dallas/Fort Worth flights
Nashville to George Bush Intcntl flights
Chattanooga to Dallas/Fort Worth flights
Knoxville to Hobby flights
Memphis to Love Field flights
Knoxville to George Bush Intcntl flights
Nashville to San Antonio flights
Chattanooga to Hobby flights
Memphis to Austin flights
Chattanooga to Austin flights
Chattanooga to George Bush Intcntl flights
Memphis to San Antonio flights
Knoxville to San Antonio flights
Chattanooga to Love Field flights
Knoxville to Love Field flights
Blountville to Dallas/Fort Worth flights
Chattanooga to San Antonio flights
Blountville to San Antonio flights
Knoxville to Austin flights
Knoxville to El Paso flights
Nashville to El Paso flights
Blountville to Hobby flights
Memphis to El Paso flights
Blountville to George Bush Intcntl flights
Nashville to Lubbock flights
Nashville to Corpus Christi flights
Blountville to Love Field flights
Blountville to Austin flights
Memphis to McAllen flights
Nashville to McAllen flights
Memphis to Waco flights
Nashville to Amarillo flights
Nashville to Waco flights
Nashville to Brownsville flights
Chattanooga to El Paso flights
Chattanooga to Midland flights
Nashville to Abilene flights
Nashville to Wichita Falls flights
Nashville to Killeen flights
Knoxville to Waco flights
Nashville to Tyler flights
Nashville to Harlingen flights
Memphis to Lubbock flights

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 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$85Average$131FlexibilityNo cancel feeOn-time88%
American AirlinesCheapest$148Average$330FlexibilityNo cancel feeOn-time71%
DeltaCheapest$218Average$283FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$226Average$357FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.