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Cheap flights from Knoxville to Houston from $55

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 12/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

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Allegiant Air Logo
5:56 pm - 7:20 pmTYS-HOU
2h 24mnonstop
Allegiant Air Logo
8:10 pm - 11:11 pmHOU-TYS
2h 01mnonstop
$88Allegiant Air
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Fri, Dec 12 - Mon, Dec 15
Frontier Logo
4:52 pm - 12:31 amTYS-IAH
8h 39m1 stop
Frontier Logo
6:45 am - 3:57 pmIAH-TYS
8h 12m1 stop
$110Frontier
Find Deal
Thu, Dec 4 - Mon, Dec 8
Multiple Airlines Logo
5:46 pm - 7:04 pmTYS-IAH
26h 18m1 stop
Multiple Airlines Logo
8:17 pm - 11:40 amIAH-TYS
14h 23m1 stop
$169Multiple Airlines
Find Deal
Mon, Jan 5 - Fri, Jan 9
Multiple Airlines Logo
3:53 pm - 7:40 amTYS-IAH
16h 47m1 stop
Multiple Airlines Logo
8:17 pm - 11:40 amIAH-TYS
14h 23m1 stop
$172Multiple Airlines
Find Deal
Wed, Jan 7 - Fri, Jan 9
United Airlines Logo
6:45 am - 8:36 amTYS-IAH
2h 51mnonstop
United Airlines Logo
8:29 pm - 11:44 pmIAH-TYS
2h 15mnonstop
$209United Airlines
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Fri, Jan 30 - Tue, Feb 3
United Airlines Logo
7:05 am - 8:48 amTYS-IAH
2h 43mnonstop
United Airlines Logo
4:40 pm - 7:54 pmIAH-TYS
2h 14mnonstop
$220United Airlines
Find Deal
Thu, Dec 4 - Sat, Dec 6
American Airlines Logo
4:22 pm - 8:18 pmTYS-HOU
4h 56m1 stop
American Airlines Logo
9:05 am - 3:32 pmHOU-TYS
5h 27m1 stop
$229American Airlines
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Fri, Dec 5 - Sun, Dec 7
Delta Logo
7:59 pm - 11:59 pmTYS-IAH
5h 00m1 stop
Delta Logo
5:10 am - 10:46 amIAH-TYS
4h 36m1 stop
$229Delta
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Fri, Dec 5 - Sun, Dec 7
American Airlines Logo
6:00 am - 12:09 pmTYS-HOU
7h 09m1 stop
American Airlines Logo
4:55 pm - 10:47 pmHOU-TYS
4h 52m1 stop
$249American Airlines
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Fri, Jan 30 - Tue, Feb 3
Delta Logo
3:53 pm - 9:11 pmTYS-IAH
6h 18m1 stop
Delta Logo
11:58 am - 6:58 pmIAH-TYS
6h 00m1 stop
$249Delta
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Sun, Nov 23 - Sat, Dec 6

Allegiant Air flights from Knoxville to Houston

Our best Allegiant Air deals on Knoxville to Houston flight tickets
Allegiant Air
Dec 12
TYS5:56 pmKnoxville McGhee Tyson
2h 24m
HOU7:20 pmHouston Hobby
Dec 15
HOU8:10 pmHouston Hobby
2h 01m
TYS11:11 pmKnoxville McGhee Tyson
$88
Find similar
Allegiant Air
Nov 13
TYS6:30 amKnoxville McGhee Tyson
2h 27m
HOU7:57 amHouston Hobby
Nov 16
HOU8:47 amHouston Hobby
2h 01m
TYS11:48 amKnoxville McGhee Tyson
$98
Find similar
Allegiant Air
Nov 13
TYS6:30 amKnoxville McGhee Tyson
2h 27m
HOU7:57 amHouston Hobby
Nov 16
HOU8:47 amHouston Hobby
2h 01m
TYS11:48 amKnoxville McGhee Tyson
$100
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American Airlines flights from Knoxville to Houston

Our best American Airlines deals on Knoxville to Houston flight tickets
American Airlines
Dec 5
TYS4:22 pmKnoxville McGhee Tyson
4h 56m
1 stop
HOU8:18 pmHouston Hobby
Dec 7
HOU9:05 amHouston Hobby
5h 27m
1 stop
TYS3:32 pmKnoxville McGhee Tyson
$229
Find similar
American Airlines
Jan 30
TYS6:00 amKnoxville McGhee Tyson
7h 09m
1 stop
HOU12:09 pmHouston Hobby
Feb 3
HOU4:55 pmHouston Hobby
4h 52m
1 stop
TYS10:47 pmKnoxville McGhee Tyson
$249
Find similar
American Airlines
Feb 25
TYS10:16 amKnoxville McGhee Tyson
5h 57m
1 stop
IAH3:13 pmHouston George Bush Intcntl
Mar 1
IAH5:00 amHouston George Bush Intcntl
5h 29m
1 stop
TYS11:29 amKnoxville McGhee Tyson
$258
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momondo 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, momondo users made 832,500 searches. Data last updated November 6, 2025.
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

KnoxvilleHouston

TYS - HOU

TYSHOU

Knoxville McGhee Tyson

Fri 12/12

5:56 pm-7:20 pm

Nonstop2h 24m

Houston Hobby

Mon 12/15

8:10 pm-11:11 pm

Nonstop2h 01m

$88

KnoxvilleHouston

TYS - IAH

TYSIAH

Knoxville McGhee Tyson

Thu 12/4

4:52 pm-12:31 am

1 stop8h 39m

Houston George Bush Intcntl

Mon 12/8

6:45 am-3:57 pm

1 stop8h 12m

$110

KnoxvilleHouston

TYS - IAH

TYSIAH

Knoxville McGhee Tyson

Mon 1/5

5:46 pm-7:04 pm

1 stop26h 18m

Houston George Bush Intcntl

Fri 1/9

8:17 pm-11:40 am

1 stop14h 23m

$169

KnoxvilleHouston

TYS - IAH

TYSIAH

Knoxville McGhee Tyson

Wed 1/7

3:53 pm-7:40 am

1 stop16h 47m

Houston George Bush Intcntl

Fri 1/9

8:17 pm-11:40 am

1 stop14h 23m

$172

KnoxvilleHouston

TYS - IAH

TYSIAH

Knoxville McGhee Tyson

Fri 1/30

6:45 am-8:36 am

Nonstop2h 51m

Houston George Bush Intcntl

Tue 2/3

8:29 pm-11:44 pm

Nonstop2h 15m

$209

KnoxvilleHouston

TYS - IAH

TYSIAH

Knoxville McGhee Tyson

Thu 12/4

7:05 am-8:48 am

Nonstop2h 43m

Houston George Bush Intcntl

Sat 12/6

4:40 pm-7:54 pm

Nonstop2h 14m

$220

KnoxvilleHouston

TYS - HOU

TYSHOU

Knoxville McGhee Tyson

Fri 12/5

4:22 pm-8:18 pm

1 stop4h 56m

Houston Hobby

Sun 12/7

9:05 am-3:32 pm

1 stop5h 27m

$229

KnoxvilleHouston

TYS - IAH

TYSIAH

Knoxville McGhee Tyson

Fri 12/5

7:59 pm-11:59 pm

1 stop5h 00m

Houston George Bush Intcntl

Sun 12/7

5:10 am-10:46 am

1 stop4h 36m

$229

KnoxvilleHouston

TYS - HOU

TYSHOU

Knoxville McGhee Tyson

Fri 1/30

6:00 am-12:09 pm

1 stop7h 09m

Houston Hobby

Tue 2/3

4:55 pm-10:47 pm

1 stop4h 52m

$249

KnoxvilleHouston

TYS - IAH

TYSIAH

Knoxville McGhee Tyson

Sun 11/23

3:53 pm-9:11 pm

1 stop6h 18m

Houston George Bush Intcntl

Sat 12/6

11:58 am-6:58 pm

1 stop6h 00m

$249

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

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 cheapest month to fly to Houston?

The month of August is, on average, the cheapest month to fly to Houston from Knoxville, with most prices found around $237. The month of July is another great option to travel to Houston, with average flight prices from Knoxville averaging around $239.

What is the cheapest day to depart on your flight to Houston?

On average, the least expensive day to fly to Houston from Knoxville is on a Monday. momondo users have found tickets for Monday departures for as low as $91. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Friday as prices are generally higher than usual. According to our data, the average ticket price to Houston on Friday is $136.

What is the cheapest time of day to depart on your flight to Houston?

Our data shows that the cheapest Knoxville to Houston flights are usually those with departure times in the evening. Our users have found flights to Houston in the evening for as low as $289. Try not to purchase tickets in the morning because they tend to be around $514. 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 flight route?

Fly from Knoxville McGhee Tyson to Houston Hobby for the best Knoxville McGhee Tyson - Houston flight prices

How far in advance should I book a flight to Houston?

You are more likely to see cheaper flights to Houston from Knoxville when booking weeks ahead of your departure date. In general, you can expect to find flights to Houston for around $310 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Houston from Knoxville for as low as $230 on momondo.

What cabin class options are available on Knoxville McGhee Tyson to Houston flights?

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

Cheap Knoxville to Houston flight deals and tips

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

Fastest flight time

2h 20m

Direct flights

Mon, Wed, Thu, Fri, Sat and Sun

Airports in Houston

2 airports
The fastest flight from Knoxville to Houston takes 2h 20m
Direct flights go from Knoxville to Houston on Monday, Wednesday, Thursday, Friday, Saturday and Sunday. There are no airlines offering direct flights.
There are 2 airports near Houston: Houston George Bush Intcntl (IAH), Houston Hobby (HOU)
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  • How far is Knoxville McGhee Tyson to Houston by plane?

    There are 789.2 mi between Knoxville McGhee Tyson and Houston. By plane, this route typically takes 2h 20m.

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

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

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Knoxville McGhee Tyson Airport to Houston.

  • What documentation or ID do you need to fly to Houston?

    The required travel and health documents for your Houston 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. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Knoxville to Houston

Compare and see reviews for airlines that fly from Knoxville to Houston with momondo
Airline
Rating
Free Cancellation
Price
Allegiant AirPriceFrom $79Free CancellationRating
7.2
697 reviews
Search Allegiant Air flights
United AirlinesPriceFrom $223Free CancellationRating
7.4
9,007 reviews
Search United Airlines flights
DeltaPriceFrom $228Free CancellationRating
7.9
8,001 reviews
Search Delta flights
American AirlinesPriceFrom $228Free CancellationRating
7.2
11,040 reviews
Search American Airlines flights

Why use momondo?

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

It is quick and easy to find Knoxville to Houston flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Houston that suits you.

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

Yes. momondo enables you to select and highlight flights to Houston from Knoxville with this policy.

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

Once all potential Knoxville to Houston flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Of course. momondo tracks the price of Knoxville to Houston flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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