HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
George Bush Intcntl

$103+ Cheap flights from Knoxville (TYS) to George Bush Intcntl (IAH)

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 11/7. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — IAH
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Knoxville to George Bush Intcntl 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.

Cheap flight deals from Knoxville to George Bush Intcntl

Discover tips and strategies to find the most affordable flight options for your journey from Knoxville (TYS) to George Bush Intcntl (IAH). 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

$183
(Kiwi.com)

One-way from

$103
(Kiwi.com)

Popular in

March

Cheapest in

September

Average price

$289

Good round-trip deal

$369 or less

Good one-way deal

$249 or less
From Knoxville McGhee Tyson to Houston George Bush Intcntl
Search Deals
One-way flight from Knoxville McGhee Tyson to Houston George Bush Intcntl
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($59 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals
Price to beat on a round-trip flight from Knoxville McGhee Tyson to Houston George Bush Intcntl.
Search Deals
Price to beat on a one-way flight from Knoxville McGhee Tyson to Houston George Bush Intcntl.
Search Deals

Find flight deals from Knoxville to George Bush Intcntl

Cheapest flights from Knoxville to George Bush Intcntl
Explore the most affordable flight options available from Knoxville to George Bush Intcntl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

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
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/137:17 pmTYS - IAH
2 stops15h 16mFrontier
Sun 11/166:00 amIAH - TYS
1 stop11h 22mFrontier
Deal found 9/10$205
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/112:00 pmTYS - IAH
Nonstop2h 31mUnited Airlines
Sat 10/42:50 pmIAH - TYS
Nonstop2h 20mUnited Airlines
Deal found 9/10$209
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 10/307:17 pmTYS - IAH
1 stop29h 22mMultiple Airlines
Mon 11/38:10 pmIAH - TYS
1 stop13h 23mMultiple Airlines
Deal found 9/10$211

Cheapflights Fare Finder

 
Customize your flight search to find flights from Knoxville to George Bush Intcntl 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 George Bush Intcntl Airport that are best for you.

Fly from

Knoxville

Fly to

George Bush Intcntl

Route

Depart

Return

Price

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 - 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 - IAH

TYSIAH

Knoxville McGhee Tyson

Wed 10/8

5:44 am-8:47 am

1 stop4h 03m

Houston George Bush Intcntl

Wed 10/15

6:00 am-4:38 pm

1 stop9h 38m

$229

KnoxvilleHouston

TYS - IAH

TYSIAH

Knoxville McGhee Tyson

Wed 10/1

12:01 pm-4:27 pm

1 stop5h 26m

Houston George Bush Intcntl

Sat 10/4

5:45 am-10:25 am

1 stop3h 40m

$229

KnoxvilleHouston

TYS - IAH

TYSIAH

Knoxville McGhee Tyson

Tue 9/23

7:20 am-8:50 am

Nonstop2h 30m

Houston George Bush Intcntl

Sat 9/27

8:20 pm-11:43 pm

Nonstop2h 23m

$229

KnoxvilleHouston

TYS - IAH

TYSIAH

Knoxville McGhee Tyson

Fri 10/17

8:10 pm-11:59 pm

1 stop4h 49m

Houston George Bush Intcntl

Mon 10/20

12:55 pm-9:13 pm

1 stop7h 18m

$229

KnoxvilleHouston

TYS - IAH

TYSIAH

Knoxville McGhee Tyson

Fri 10/17

8:10 pm-11:59 pm

1 stop4h 49m

Houston George Bush Intcntl

Sat 10/18

12:55 pm-9:13 pm

1 stop7h 18m

$229

KnoxvilleHouston

TYS - IAH

TYSIAH

Knoxville McGhee Tyson

Sat 10/11

6:15 am-12:24 pm

1 stop7h 09m

Houston George Bush Intcntl

Wed 10/15

6:00 am-4:38 pm

1 stop9h 38m

$229

KnoxvilleHouston

TYS - IAH

TYSIAH

Knoxville McGhee Tyson

Thu 10/16

5:44 am-8:47 am

1 stop4h 03m

Houston George Bush Intcntl

Sat 10/18

12:55 pm-9:13 pm

1 stop7h 18m

$229

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 17 results
1
2

Best time to book a flight from Knoxville to George Bush Intcntl

Have a flexible travel schedule? Discover the best time to fly to George Bush Intcntl 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 George Bush Intcntl Airport

What is the cheapest month to book a flight from Knoxville to Houston George Bush Intcntl Airport?

Currently, August is the cheapest month in which you can book a flight from Knoxville to Houston George Bush Intcntl Airport (average of $241). Flying from Knoxville to Houston George Bush Intcntl Airport in March is currently the most expensive (average of $339). 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 IAH?

Find hourly flight availability from Knoxville to George Bush Intcntl. 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.

It’s typically best to fly out from Knoxville to Houston George Bush Intcntl Airport in the afternoon. Doing so could potentially save you 55% on the flight price compared to flying at noon, which is usually more expensive.

Reviews of airlines servicing George Bush Intcntl

Get insights into the airlines that provide service to George Bush Intcntl. 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 George Bush Intcntl. Reviews last updated September 11, 2025.
See what other customers who have flown with United Airlines and American Airlines from Knoxville to Houston George Bush Intcntl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,937 reviews

Entertainment

7.1

Crew

8.1

Boarding

7.7

Comfort

7.3

Overall

7.4

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
United Airlines
7.4
Good
8,937 reviews
United Airlines
7.4
Good
8,937 reviews

Entertainment

7.1

Crew

8.1

Boarding

7.7

Comfort

7.3

Overall

7.4

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,937 reviews

Entertainment

7.1

Crew

8.1

Boarding

7.7

Comfort

7.3

Overall

7.4

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Related info for your journey

Find useful and relevant information for your journey from Knoxville to George Bush Intcntl. 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 George Bush Intcntl?

    Knoxville McGhee Tyson (TYS), located 11.3 mi from the city center, is the airport you fly out of when you book flights from Knoxville to Houston George Bush Intcntl. 2 airlines have flights from McGhee Tyson to Houston George Bush Intcntl on a regular basis. Booking flights from Knoxville McGhee Tyson to Houston George Bush Intcntl should not be difficult; the airport handles an average of 6 outbound flights to Houston George Bush Intcntl per day.

  • How long is the flight from Knoxville to Houston George Bush Intcntl Airport?

    A quick flight from Knoxville to Houston George Bush Intcntl Airport can take about 2h 31m. United Airlines provides one of the quickest options available for as low as $209. Knoxville and Houston George Bush Intcntl Airport are separated by a distance of 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 George Bush Intcntl Airport round-trip?

    Flying on American Airlines is currently your cheapest option to Houston George Bush Intcntl Airport, with prices starting at $228. Another option worth looking into is United Airlines, starting at $244 round trip. These flights start at 37% lower than the current average price 3 months from now.

  • What are the most reliable airlines from Knoxville to Houston George Bush Intcntl Airport?

    Before booking your flight to Houston George Bush Intcntl Airport from Knoxville, check out the most reliable airlines to get you to your destination on time: Air New Zealand (85%), CommutAir (79%), United Airlines( 78%).

  • What are the cheapest flights from Knoxville to Houston George Bush Intcntl Airport?

    While on average a flight from Knoxville to Houston George Bush Intcntl Airport is generally $454, our data shows the cheapest flight currently is $183. When looking at the most popular route, (Knoxville McGhee Tyson - Houston George Bush Intcntl), you can expect to pay $183 for that flight.

  • Can I find deals for flights from Knoxville to George Bush Intcntl that include hotel bookings?

    Yes. In addition to deals on Knoxville to George Bush Intcntl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Knoxville to George Bush Intcntl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Knoxville to George Bush Intcntl.

  • Can I find deals for business class flights from Knoxville to George Bush Intcntl?

    Yes. Cheapflights offers flight deals from Knoxville to George Bush Intcntl 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 George Bush Intcntl Airport?

    Currently, August is the cheapest month in which you can book a flight from Knoxville to Houston George Bush Intcntl Airport (average of $241). Flying from Knoxville to Houston George Bush Intcntl Airport in March is currently the most expensive (average of $339). 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

Traveling to a place near Houston George Bush Intcntl Airport?

Book flights to Houston George Bush Intcntl Airport if you plan to visit one of these locations
Montgomery
Spring
Jersey Village
Humble
The Woodlands
Conroe
Tomball
Katy
Cypress

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.

Top 2 airlines flying from Knoxville to George Bush Intcntl

Discover the top 2 airlines that operate flights from Knoxville to George Bush Intcntl. 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
American AirlinesCheapest$228Average$288FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$244Average$376FlexibilityNo 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.