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Cheap flights from Knoxville to Houston from $107

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Knoxville to Houston departing on 7/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Knoxville to Houston

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:20 pm - 6:25 pm
TYS
-
IAH
24h 05m
1 stop
Multiple Airlines Logo
1:16 pm - 10:44 pm
IAH
-
TYS
8h 28m
1 stop
$181Multiple Airlines
Mon, Aug 3 - Mon, Aug 10
Multiple Airlines Logo
7:20 pm - 6:25 pm
TYS
-
IAH
24h 05m
1 stop
Multiple Airlines Logo
6:00 am - 10:24 pm
IAH
-
TYS
15h 24m
2 stops
$196Multiple Airlines
Mon, Aug 3 - Mon, Aug 10
Multiple Airlines Logo
5:00 pm - 2:50 pm
TYS
-
IAH
22h 50m
1 stop
Multiple Airlines Logo
7:23 pm - 5:36 pm
IAH
-
TYS
21h 13m
1 stop
$201Multiple Airlines
Tue, Jul 21 - Wed, Aug 5
Multiple Airlines Logo
7:20 pm - 8:45 am
TYS
-
IAH
14h 25m
1 stop
Multiple Airlines Logo
8:20 am - 4:10 pm
IAH
-
TYS
6h 50m
1 stop
$205Multiple Airlines
Fri, Jul 10 - Tue, Jul 14
Multiple Airlines Logo
5:00 pm - 2:50 pm
TYS
-
IAH
22h 50m
1 stop
Multiple Airlines Logo
7:23 pm - 10:44 pm
IAH
-
TYS
26h 21m
1 stop
$212Multiple Airlines
Tue, Jul 21 - Thu, Aug 6
Multiple Airlines Logo
10:05 pm - 8:45 am
TYS
-
IAH
11h 40m
1 stop
Multiple Airlines Logo
6:00 am - 10:00 pm
IAH
-
TYS
15h 00m
2 stops
$215Multiple Airlines
Fri, Jul 24 - Mon, Jul 27
Multiple Airlines Logo
7:20 pm - 8:45 am
TYS
-
IAH
14h 25m
1 stop
Multiple Airlines Logo
6:00 am - 10:24 pm
IAH
-
TYS
15h 24m
2 stops
$216Multiple Airlines
Mon, Jul 27 - Fri, Aug 7
Multiple Airlines Logo
1:05 pm - 2:50 pm
TYS
-
IAH
26h 45m
1 stop
Multiple Airlines Logo
7:23 pm - 11:03 pm
IAH
-
TYS
26h 40m
1 stop
$222Multiple Airlines
Wed, Jul 15 - Sat, Jul 18
Multiple Airlines Logo
5:00 pm - 2:50 pm
TYS
-
IAH
22h 50m
1 stop
Multiple Airlines Logo
6:00 am - 10:00 pm
IAH
-
TYS
15h 00m
2 stops
$223Multiple Airlines
Tue, Jul 21 - Mon, Jul 27
Multiple Airlines Logo
12:50 pm - 11:27 am
TYS
-
IAH
23h 37m
2 stops
Multiple Airlines Logo
1:16 pm - 10:44 pm
IAH
-
TYS
8h 28m
1 stop
$224Multiple Airlines
Fri, Aug 7 - Mon, Aug 10

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Frontier flights from Knoxville to Houston George Bush Intcntl Airport

Our best Frontier deals on Knoxville to Houston George Bush Intcntl Airport flight tickets
Frontier
Aug 7
TYS8:19 pmKnoxville McGhee Tyson
15h 15m
1 stop
IAH10:34 amHouston George Bush Intcntl
Aug 10
IAH6:30 amHouston George Bush Intcntl
11h 54m
1 stop
TYS7:24 pmKnoxville McGhee Tyson
$250
Frontier
Jul 22
TYS8:19 pmKnoxville McGhee Tyson
29h 21m
1 stop
IAH12:40 amHouston George Bush Intcntl
Jul 26
IAH6:14 pmHouston George Bush Intcntl
24h 10m
1 stop
TYS7:24 pmKnoxville McGhee Tyson
$252
Frontier
Jul 17
TYS8:19 pmKnoxville McGhee Tyson
15h 15m
1 stop
IAH10:34 amHouston George Bush Intcntl
Jul 20
IAH6:30 amHouston George Bush Intcntl
11h 54m
1 stop
TYS7:24 pmKnoxville McGhee Tyson
$254

United Airlines flights from Knoxville to Houston George Bush Intcntl Airport

Our best United Airlines deals on Knoxville to Houston George Bush Intcntl Airport flight tickets
United Airlines
Jul 24
TYS7:15 amKnoxville McGhee Tyson
2h 25m
IAH8:40 amHouston George Bush Intcntl
Jul 27
IAH8:00 amHouston George Bush Intcntl
2h 19m
TYS11:19 amKnoxville McGhee Tyson
$269
United Airlines
Jul 2
TYS3:25 pmKnoxville McGhee Tyson
2h 25m
IAH4:50 pmHouston George Bush Intcntl
Jul 6
IAH7:50 pmHouston George Bush Intcntl
2h 22m
TYS11:12 pmKnoxville McGhee Tyson
$424
United Airlines
Jun 26
TYS6:00 amKnoxville McGhee Tyson
5h 36m
1 stop
IAH10:36 amHouston George Bush Intcntl
Jul 10
IAH7:50 pmHouston George Bush Intcntl
2h 22m
TYS11:12 pmKnoxville McGhee Tyson
$444

momondo Fare Finder

 
Customize your flight search to find flights from Knoxville to Houston George Bush Intcntl Airport 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, momondo users made 832,500 searches. Data last updated June 23, 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

Mon 8/3

7:20 pm-6:25 pm

1 stop24h 05m

Houston George Bush Intcntl

Mon 8/10

1:16 pm-10:44 pm

1 stop8h 28m

$181

KnoxvilleHouston

TYS - IAH

TYSIAH

Knoxville McGhee Tyson

Mon 8/3

7:20 pm-6:25 pm

1 stop24h 05m

Houston George Bush Intcntl

Mon 8/10

6:00 am-10:24 pm

2 stops15h 24m

$196

KnoxvilleHouston

TYS - IAH

TYSIAH

Knoxville McGhee Tyson

Tue 7/21

5:00 pm-2:50 pm

1 stop22h 50m

Houston George Bush Intcntl

Wed 8/5

7:23 pm-5:36 pm

1 stop21h 13m

$201
Quickest round-trip

KnoxvilleHouston

TYS - IAH

TYSIAH

Knoxville McGhee Tyson

Fri 7/10

7:20 pm-8:45 am

1 stop14h 25m

Houston George Bush Intcntl

Tue 7/14

8:20 am-4:10 pm

1 stop6h 50m

$205

KnoxvilleHouston

TYS - IAH

TYSIAH

Knoxville McGhee Tyson

Tue 7/21

5:00 pm-2:50 pm

1 stop22h 50m

Houston George Bush Intcntl

Thu 8/6

7:23 pm-10:44 pm

1 stop26h 21m

$212

KnoxvilleHouston

TYS - IAH

TYSIAH

Knoxville McGhee Tyson

Fri 7/24

10:05 pm-8:45 am

1 stop11h 40m

Houston George Bush Intcntl

Mon 7/27

6:00 am-10:00 pm

2 stops15h 00m

$215

KnoxvilleHouston

TYS - IAH

TYSIAH

Knoxville McGhee Tyson

Mon 7/27

7:20 pm-8:45 am

1 stop14h 25m

Houston George Bush Intcntl

Fri 8/7

6:00 am-10:24 pm

2 stops15h 24m

$216

KnoxvilleHouston

TYS - IAH

TYSIAH

Knoxville McGhee Tyson

Wed 7/15

1:05 pm-2:50 pm

1 stop26h 45m

Houston George Bush Intcntl

Sat 7/18

7:23 pm-11:03 pm

1 stop26h 40m

$222

KnoxvilleHouston

TYS - IAH

TYSIAH

Knoxville McGhee Tyson

Tue 7/21

5:00 pm-2:50 pm

1 stop22h 50m

Houston George Bush Intcntl

Mon 7/27

6:00 am-10:00 pm

2 stops15h 00m

$223

KnoxvilleHouston

TYS - IAH

TYSIAH

Knoxville McGhee Tyson

Fri 8/7

12:50 pm-11:27 am

2 stops23h 37m

Houston George Bush Intcntl

Mon 8/10

1:16 pm-10:44 pm

1 stop8h 28m

$224

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Houston from

How to get the cheapest flight ticket from Knoxville to Houston George Bush Intcntl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Knoxville and Houston George Bush Intcntl Airport?

What is the cheapest month to fly to Houston George Bush Intcntl Airport?

The month of September is, on average, the cheapest month to fly to Houston George Bush Intcntl Airport from Knoxville, with most prices found around $298. If you are unable to visit Houston George Bush Intcntl Airport during the month of September, then departing from Knoxville during the month July is also very affordable. Most momondo users find prices during this month for around $321.

What is the cheapest day to depart on your flight to Houston George Bush Intcntl Airport?

The cheapest day to depart from Knoxville to Houston George Bush Intcntl Airport is on a Thursday. Travelers who choose to depart for Houston George Bush Intcntl Airport on a Thursday will often find tickets for as low as $423. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Houston George Bush Intcntl Airport on Sunday is $714.

What is the cheapest time of day to depart on your flight to Houston George Bush Intcntl Airport?

Our data shows that the cheapest Knoxville to Houston George Bush Intcntl Airport flights are usually those with departure times in the morning. Our users have found flights to Houston George Bush Intcntl Airport in the morning for as low as $520. Try not to purchase tickets in the afternoon because they tend to be around $580. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Knoxville McGhee Tyson to Houston George Bush Intcntl flight route?

Fly from Knoxville McGhee Tyson to Houston George Bush Intcntl for the best Knoxville McGhee Tyson - Houston George Bush Intcntl flight prices

What cabin class options are available on Knoxville to Houston George Bush Intcntl Airport flights?

There are 4 cabin classes available to choose from on Knoxville to Houston George Bush Intcntl Airport flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Knoxville to Houston George Bush Intcntl Airport flights?

You could potentially save up to 10% on your flight if you consider stops on a Knoxville to Houston George Bush Intcntl Airport flight.

How have Knoxville to Houston George Bush Intcntl Airport flight prices changed over time?

As of June 2026, prices for Knoxville to Houston George Bush Intcntl Airport flights are approximately 258% more expensive when compared to flights at the same time last year.

When to book flights from Knoxville to Houston George Bush Intcntl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Knoxville to Houston George Bush Intcntl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Knoxville to Houston George Bush Intcntl Airport (TYS to IAH) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Knoxville to Houston George Bush Intcntl Airport

Best Price Found

$199

Fastest flight time

2h 22m

Direct flights

Every day
The best one-way flight to Houston George Bush Intcntl Airport from Knoxville in the past 72 hours is $199. The best round-trip flight deal from Knoxville to Houston George Bush Intcntl Airport found on momondo in the last 72 hours is $484.
The fastest flight from Knoxville to Houston George Bush Intcntl Airport takes 2h 22m
Direct flights go from Knoxville to Houston George Bush Intcntl Airport every day.
Search flight deals

Frequently asked questions about flying from Knoxville to Houston George Bush Intcntl Airport

  • How far is Knoxville McGhee Tyson to Houston George Bush Intcntl by plane?

    The distance between Knoxville McGhee Tyson and Houston George Bush Intcntl is about 778.8 mi. By plane, this route typically takes 2h 22m.

  • When did momondo last update prices for flights from Knoxville McGhee Tyson Airport to Houston George Bush Intcntl Airport?

    Prices for flights from Knoxville McGhee Tyson Airport to Houston George Bush Intcntl Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Knoxville McGhee Tyson Airport to Houston George Bush Intcntl Airport?

  • How old do you have to be to fly from Knoxville McGhee Tyson Airport to Houston George Bush Intcntl Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Knoxville McGhee Tyson Airport to Houston George Bush Intcntl Airport.

  • What documentation or ID do you need to fly to Houston George Bush Intcntl Airport?

    The required travel and health documents for your Houston George Bush Intcntl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Houston George Bush Intcntl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Knoxville to Houston George Bush Intcntl Airport?

  • What is the most popular airline from Knoxville to Houston George Bush Intcntl Airport?

Best airlines flying from Knoxville to Houston George Bush Intcntl Airport

Compare and see reviews for airlines that fly from Knoxville to Houston George Bush Intcntl Airport with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $224Free CancellationRating
7.4
9,879 reviews
Search United Airlines flights
American AirlinesPriceFrom $228Free CancellationRating
7.1
11,749 reviews
Search American Airlines flights
DeltaPriceFrom $228Free CancellationRating
7.8
8,427 reviews
Search Delta flights

  • United Airlines Flights From Knoxville to Houston George Bush Intcntl Airport

    United Airlines is one of the most popular airlines flying from Knoxville to Houston George Bush Intcntl Airport, operating 15 flights/week on average for this route. A good United Airlines flight deal for Knoxville to Houston George Bush Intcntl Airport starts from $224 round-trip, up to an average price of $366. Our users have rated United Airlines at 7.4/10.

Traveling to a place near Houston?

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

Why use momondo?

Why should I use momondo to find a flight deal from Knoxville to Houston?

Finding the right flight to Houston from Knoxville is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Houston quick and easy, saving you time and money.

Can I find flights from Knoxville to Houston with flexible booking policies on momondo?

Flights from Knoxville to Houston with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Knoxville to Houston?

Once you have performed a search for Knoxville to Houston flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Knoxville to Houston right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Knoxville to Houston now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Houston and let you know when they change.

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