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George Bush Intcntl

$80+ 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 4/16. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — IAH
Apr 12 — Apr 191
Sun 4/12
Sun 4/19
1 adult, Economy
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Cheap 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 March 13, 2026.

This American Airlines deal was found by Cheapflights users on 3/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/26:00 am
TYS
-
IAH
1 stop4h 44m
American Airlines
Tue 5/125:00 am
IAH
-
TYS
1 stop6h 30m
American Airlines
Deal found 3/9$169
This American Airlines deal was found by Cheapflights users on 3/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/254:29 pm
TYS
-
IAH
1 stop4h 55m
American Airlines
Sat 4/47:32 am
IAH
-
TYS
1 stop7h 05m
American Airlines
Deal found 3/9$189
This Frontier deal was found by Cheapflights users on 3/8. 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 4/164:28 pm
TYS
-
IAH
1 stop9h 20m
Frontier
Sun 4/196:45 am
IAH
-
TYS
1 stop7h 48m
Frontier
Deal found 3/8$216
This American Airlines deal was found by Cheapflights users on 3/8. 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 4/165:00 am
TYS
-
IAH
1 stop5h 13m
American Airlines
Mon 4/206:09 pm
IAH
-
TYS
1 stop4h 47m
American Airlines
Deal found 3/8$224
This United Airlines deal was found by Cheapflights users on 3/8. 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 4/169:00 am
TYS
-
IAH
Nonstop2h 37m
United Airlines
Mon 4/208:21 pm
IAH
-
TYS
Nonstop2h 20m
United Airlines
Deal found 3/8$229
This Kiwi.com deal was found by Cheapflights users on 3/12. 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.
Mon 3/233:29 pm
TYS
-
IAH
1 stop18h 11m
Multiple Airlines
Wed 3/259:15 pm
IAH
-
TYS
1 stop24h 44m
Multiple Airlines
Deal found 3/12$230
This Kiwi.com deal was found by Cheapflights users on 3/12. 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.
Sun 4/128:20 am
TYS
-
IAH
1 stop23h 42m
Multiple Airlines
Tue 4/1411:19 am
IAH
-
TYS
1 stop22h 17m
Multiple Airlines
Deal found 3/12$232
This Kiwi.com deal was found by Cheapflights users on 3/10. 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 3/258:30 am
TYS
-
IAH
1 stop6h 54m
Multiple Airlines
Thu 3/269:36 am
IAH
-
TYS
1 stop11h 50m
Multiple Airlines
Deal found 3/10$236
This United Airlines deal was found by Cheapflights users on 3/8. 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.
Tue 3/317:05 am
TYS
-
IAH
Nonstop2h 41m
United Airlines
Sat 4/42:55 pm
IAH
-
TYS
Nonstop2h 20m
United Airlines
Deal found 3/8$238
This Kiwi.com deal was found by Cheapflights users on 3/8. 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.
Sun 4/1911:27 am
TYS
-
IAH
1 stop27h 35m
Multiple Airlines
Sat 4/256:57 pm
IAH
-
TYS
1 stop25h 17m
Multiple Airlines
Deal found 3/8$239
This Kiwi.com deal was found by Cheapflights users on 3/11. 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 4/99:36 pm
TYS
-
IAH
1 stop10h 26m
Multiple Airlines
Thu 4/169:46 am
IAH
-
TYS
1 stop9h 56m
Multiple Airlines
Deal found 3/11$242

Find 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 March 13, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$169
(American Airlines)

One-way from

$80
(Frontier)

Popular in

March

Cheapest in

September

Average price

$591

Good round-trip deal

$335 or less

Good one-way deal

$243 or less
Provider with most accurate pricing for Knoxville McGhee Tyson-Houston George Bush Intcntl flight deals.
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Provider most trusted by Cheapflights users for Knoxville McGhee Tyson-Houston George Bush Intcntl flights.
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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. 11% potential increase in price ($48 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
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.
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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 March 13, 2026.
Use the filters below to find and compare flights from Knoxville to Houston George Bush Intcntl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

KnoxvilleHouston

TYS - IAH

TYSIAH

Knoxville McGhee Tyson

Fri 4/17

7:05 am-8:46 am

Nonstop2h 41m

Houston George Bush Intcntl

Tue 4/21

2:55 pm-6:15 pm

Nonstop2h 20m

$249
Quickest round-trip

KnoxvilleHouston

TYS - IAH

TYSIAH

Knoxville McGhee Tyson

Wed 4/8

11:25 am-1:06 pm

Nonstop2h 41m

Houston George Bush Intcntl

Wed 4/15

4:40 pm-7:56 pm

Nonstop2h 16m

$249

KnoxvilleHouston

TYS - IAH

TYSIAH

Knoxville McGhee Tyson

Sat 5/2

11:40 am-1:17 pm

Nonstop2h 37m

Houston George Bush Intcntl

Tue 5/12

8:24 pm-11:44 pm

Nonstop2h 20m

$319

KnoxvilleHouston

TYS - IAH

TYSIAH

Knoxville McGhee Tyson

Fri 6/5

5:45 am-8:47 am

1 stop4h 02m

Houston George Bush Intcntl

Fri 6/12

9:40 am-3:06 pm

1 stop4h 26m

$339

KnoxvilleHouston

TYS - IAH

TYSIAH

Knoxville McGhee Tyson

Sat 5/16

5:55 pm-11:16 pm

1 stop6h 21m

Houston George Bush Intcntl

Sun 5/24

7:50 pm-11:12 pm

Nonstop2h 22m

$358

KnoxvilleHouston

TYS - IAH

TYSIAH

Knoxville McGhee Tyson

Sun 4/19

9:40 am-3:23 pm

1 stop6h 43m

Houston George Bush Intcntl

Sat 4/25

2:55 pm-6:15 pm

Nonstop2h 20m

$358

KnoxvilleHouston

TYS - IAH

TYSIAH

Knoxville McGhee Tyson

Fri 7/3

5:30 am-8:41 am

1 stop4h 11m

Houston George Bush Intcntl

Sun 7/5

8:15 am-1:25 pm

1 stop4h 10m

$374

KnoxvilleHouston

TYS - IAH

TYSIAH

Knoxville McGhee Tyson

Thu 4/9

7:05 am-8:46 am

Nonstop2h 41m

Houston George Bush Intcntl

Sun 4/12

8:21 pm-11:41 pm

Nonstop2h 20m

$374

KnoxvilleHouston

TYS - IAH

TYSIAH

Knoxville McGhee Tyson

Tue 4/7

10:49 am-5:11 pm

1 stop7h 22m

Houston George Bush Intcntl

Tue 4/14

4:40 pm-7:56 pm

Nonstop2h 16m

$378

KnoxvilleHouston

TYS - IAH

TYSIAH

Knoxville McGhee Tyson

Sat 5/2

5:55 pm-11:16 pm

1 stop6h 21m

Houston George Bush Intcntl

Sun 5/10

8:24 pm-11:44 pm

Nonstop2h 20m

$378

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/8

Showing 1-10 of 21 resultsSorted by cheapest first
1
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3

Compare providers for flights from Knoxville to George Bush Intcntl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Knoxville to George Bush Intcntl in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
MytripPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Knoxville-Houston George Bush Intcntl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Knoxville-Houston George Bush Intcntl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Knoxville-Houston George Bush Intcntl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Knoxville-Houston George Bush Intcntl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Knoxville-Houston George Bush Intcntl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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, January is the cheapest month in which you can book a flight from Knoxville to Houston George Bush Intcntl Airport (average of $172). Flying from Knoxville to Houston George Bush Intcntl Airport in March is currently the most expensive (average of $259). 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 March 13, 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Knoxville to Houston George Bush Intcntl Airport as you normally would.

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 March 13, 2026.
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
9,418 reviews

Overall

7.4

Food

6.6

Crew

8.1

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,418 reviews
United Airlines
7.4
Good
9,418 reviews

Overall

7.4

Food

6.6

Crew

8.1

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
American Airlines
7.1
Good
11,432 reviews
United Airlines
7.4
Good
9,418 reviews

Overall

7.4

Food

6.6

Crew

8.1

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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 7 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 41m. United Airlines provides one of the quickest options available for as low as $249. 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 $239 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: CommutAir (83%), United Airlines (83%), Air New Zealand( 83%).

  • 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 $365, our data shows the cheapest flight currently is $168. When looking at the most popular route, (Knoxville McGhee Tyson - Houston George Bush Intcntl), you can expect to pay $249 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, January is the cheapest month in which you can book a flight from Knoxville to Houston George Bush Intcntl Airport (average of $172). Flying from Knoxville to Houston George Bush Intcntl Airport in March is currently the most expensive (average of $259). 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
Katy
The Woodlands
Montgomery
Spring
Tomball
Humble
Jersey Village
Cypress
Conroe

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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 March 13, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$228Average$308FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$239Average$380FlexibilityNo cancel feeOn-time69%

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