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Cheap flights from Knoxville to Houston from $81

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 1/5. 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
0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
9:29 am - 8:23 pm
TYS
-
IAH
11h 54m1 stop
Multiple Airlines Logo
6:30 am - 5:53 pm
IAH
-
TYS
10h 23m1 stop
$184Multiple Airlines
jue., ene. 22 - jue., ene. 29
Multiple Airlines Logo
9:29 am - 8:23 pm
TYS
-
IAH
11h 54m1 stop
Multiple Airlines Logo
8:18 pm - 5:28 pm
IAH
-
TYS
20h 10m1 stop
$193Multiple Airlines
jue., ene. 22 - dom., ene. 25
Multiple Airlines Logo
5:59 pm - 11:58 pm
TYS
-
IAH
6h 59m1 stop
Multiple Airlines Logo
7:45 am - 5:09 pm
IAH
-
TYS
8h 24m1 stop
$197Multiple Airlines
sáb., ene. 24 - sáb., ene. 31
Multiple Airlines Logo
12:55 pm - 11:11 am
TYS
-
IAH
23h 16m1 stop
Multiple Airlines Logo
4:35 pm - 11:09 am
IAH
-
TYS
17h 34m1 stop
$203Multiple Airlines
lun., ene. 26 - vie., ene. 30
United Airlines Logo
6:59 am - 8:50 am
TYS
-
IAH
2h 51mnonstop
United Airlines Logo
4:35 pm - 7:50 pm
IAH
-
TYS
2h 15mnonstop
$209United Airlines
dom., ene. 25 - lun., feb. 2
Allegiant Air Logo
5:30 pm - 6:41 pm
TYS
-
HOU
2h 11mnonstop
Allegiant Air Logo
7:31 pm - 10:40 pm
HOU
-
TYS
2h 09mnonstop
$213Allegiant Air
vie., jun. 12 - lun., jun. 15
American Airlines Logo
3:00 pm - 8:15 pm
TYS
-
IAH
6h 15m1 stop
American Airlines Logo
6:00 am - 11:34 am
IAH
-
TYS
4h 34m1 stop
$229American Airlines
sáb., ene. 17 - lun., ene. 19
Delta Logo
5:40 am - 10:21 am
TYS
-
HOU
5h 41m1 stop
Delta Logo
5:45 am - 11:08 am
HOU
-
TYS
4h 23m1 stop
$229Delta
jue., ene. 22 - dom., ene. 25
American Airlines Logo
6:51 pm - 10:46 pm
TYS
-
HOU
4h 55m1 stop
American Airlines Logo
10:35 am - 3:46 pm
HOU
-
TYS
4h 11m1 stop
$249American Airlines
vie., ene. 16 - mar., ene. 20
Delta Logo
6:41 pm - 10:33 pm
TYS
-
HOU
4h 52m1 stop
Delta Logo
5:04 pm - 11:45 pm
HOU
-
TYS
5h 41m1 stop
$264Delta
dom., feb. 1 - dom., feb. 8

Allegiant Air flights from Knoxville to Houston

Our best Allegiant Air deals on Knoxville to Houston flight tickets
Allegiant Air
Jun 12
TYS5:30 pmKnoxville McGhee Tyson
2h 11m
HOU6:41 pmHouston Hobby
Jun 15
HOU7:31 pmHouston Hobby
2h 09m
TYS10:40 pmKnoxville McGhee Tyson
$213
Find similar
Allegiant Air
Dec 29
TYS6:06 pmKnoxville McGhee Tyson
2h 24m
HOU7:30 pmHouston Hobby
Jan 2
HOU8:10 pmHouston Hobby
2h 01m
TYS11:11 pmKnoxville McGhee Tyson
$317
Find similar
Allegiant Air
Dec 29
TYS6:06 pmKnoxville McGhee Tyson
2h 24m
HOU7:30 pmHouston Hobby
Jan 2
HOU8:10 pmHouston Hobby
2h 01m
TYS11:11 pmKnoxville McGhee Tyson
$391
Find similar

Southwest flights from Knoxville to Houston

Our best Southwest deals on Knoxville to Houston flight tickets
Southwest
Jun 12
TYS6:40 amKnoxville McGhee Tyson
8h 05m
2 stops
HOU1:45 pmHouston Hobby
Jun 16
HOU7:00 amHouston Hobby
6h 05m
1 stop
TYS2:05 pmKnoxville McGhee Tyson
$397
Find similar
Southwest
Jun 12
TYS6:40 amKnoxville McGhee Tyson
8h 05m
2 stops
HOU1:45 pmHouston Hobby
Jun 16
HOU12:30 pmHouston Hobby
7h 45m
2 stops
TYS9:15 pmKnoxville McGhee Tyson
$402
Find similar
Southwest
Apr 16
TYS12:15 pmKnoxville McGhee Tyson
4h 55m
1 stop
HOU4:10 pmHouston Hobby
Apr 19
HOU2:50 pmHouston Hobby
5h 15m
2 stops
TYS9:05 pmKnoxville McGhee Tyson
$418
Find similar

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 diciembre 27, 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 - IAH

TYSIAH

Knoxville McGhee Tyson

jue. 1/22

9:29 am-8:23 pm

1 stop11h 54m

Houston George Bush Intcntl

jue. 1/29

6:30 am-5:53 pm

1 stop10h 23m

$184

KnoxvilleHouston

TYS - IAH

TYSIAH

Knoxville McGhee Tyson

jue. 1/22

9:29 am-8:23 pm

1 stop11h 54m

Houston George Bush Intcntl

dom. 1/25

8:18 pm-5:28 pm

1 stop20h 10m

$193

KnoxvilleHouston

TYS - IAH

TYSIAH

Knoxville McGhee Tyson

sáb. 1/24

5:59 pm-11:58 pm

1 stop6h 59m

Houston George Bush Intcntl

sáb. 1/31

7:45 am-5:09 pm

1 stop8h 24m

$197

KnoxvilleHouston

TYS - IAH

TYSIAH

Knoxville McGhee Tyson

lun. 1/26

12:55 pm-11:11 am

1 stop23h 16m

Houston George Bush Intcntl

vie. 1/30

4:35 pm-11:09 am

1 stop17h 34m

$203

KnoxvilleHouston

TYS - IAH

TYSIAH

Knoxville McGhee Tyson

dom. 1/25

6:59 am-8:50 am

Nonstop2h 51m

Houston George Bush Intcntl

lun. 2/2

4:35 pm-7:50 pm

Nonstop2h 15m

$209

KnoxvilleHouston

TYS - HOU

TYSHOU

Knoxville McGhee Tyson

vie. 6/12

5:30 pm-6:41 pm

Nonstop2h 11m

Houston Hobby

lun. 6/15

7:31 pm-10:40 pm

Nonstop2h 09m

$213

KnoxvilleHouston

TYS - IAH

TYSIAH

Knoxville McGhee Tyson

sáb. 1/17

3:00 pm-8:15 pm

1 stop6h 15m

Houston George Bush Intcntl

lun. 1/19

6:00 am-11:34 am

1 stop4h 34m

$229

KnoxvilleHouston

TYS - HOU

TYSHOU

Knoxville McGhee Tyson

jue. 1/22

5:40 am-10:21 am

1 stop5h 41m

Houston Hobby

dom. 1/25

5:45 am-11:08 am

1 stop4h 23m

$229

KnoxvilleHouston

TYS - HOU

TYSHOU

Knoxville McGhee Tyson

vie. 1/16

6:51 pm-10:46 pm

1 stop4h 55m

Houston Hobby

mar. 1/20

10:35 am-3:46 pm

1 stop4h 11m

$249

KnoxvilleHouston

TYS - HOU

TYSHOU

Knoxville McGhee Tyson

dom. 2/1

6:41 pm-10:33 pm

1 stop4h 52m

Houston Hobby

dom. 2/8

5:04 pm-11:45 pm

1 stop5h 41m

$264

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 Tuesday as prices are generally higher than usual. According to our data, the average ticket price to Houston on Tuesday is $194.

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 24m

Direct flights

Mon, Tue, Thu, Fri, Sat and Sun

Airports in Houston

2 airports
The fastest flight from Knoxville to Houston takes 2h 24m
Direct flights go from Knoxville to Houston on Monday, Tuesday, Thursday, Friday, Saturday and Sunday. There are no airlines offering direct flights.
There are 2 airports in Houston. From Knoxville there are direct flights to Houston George Bush Intcntl (IAH), Houston Hobby (HOU).
Search flight deals

  • 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 24m.

  • 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 $82Free CancellationRating
7.2
703 reviews
Search Allegiant Air flights
DeltaPriceFrom $228Free CancellationRating
7.9
8,018 reviews
Search Delta flights
American AirlinesPriceFrom $228Free CancellationRating
7.2
11,067 reviews
Search American Airlines flights
United AirlinesPriceFrom $230Free CancellationRating
7.4
9,116 reviews
Search United 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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1 adult
lun. 1/26
lun. 2/2
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