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Cheap flights from Houston to Knoxville from $51

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Houston to Knoxville departing on 8/15. 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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0 bags

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Cheap round-trip flights

Allegiant Air Logo
8:02 pm - 11:03 pmHOU-TYS
2h 01mnonstop
Allegiant Air Logo
5:47 pm - 7:12 pmTYS-HOU
2h 25mnonstop
$82Allegiant Air
Find Deal
Fri, Aug 15 - Mon, Aug 18
Allegiant Air Logo
8:02 pm - 11:03 pmHOU-TYS
2h 01mnonstop
Allegiant Air Logo
5:47 pm - 7:12 pmTYS-HOU
2h 25mnonstop
$85Allegiant Air
Find Deal
Fri, Aug 15 - Mon, Aug 18
Logo
5:50 am - 11:16 pmIAH-TYS
16h 26m1 stop
Logo
11:23 am - 10:42 pmTYS-IAH
12h 19m1 stop
$195
Find Deal
Fri, Oct 17 - Tue, Oct 21
Logo
5:30 am - 5:34 pmIAH-TYS
11h 04m1 stop
Logo
1:50 pm - 11:45 pmTYS-IAH
10h 55m1 stop
$197
Find Deal
Fri, Sep 26 - Mon, Sep 29
United Airlines Logo
8:20 pm - 11:44 pmIAH-TYS
2h 24mnonstop
United Airlines Logo
9:30 am - 11:00 amTYS-IAH
2h 30mnonstop
$209United Airlines
Find Deal
Thu, Aug 21 - Sat, Aug 23
United Airlines Logo
8:20 pm - 11:44 pmIAH-TYS
2h 24mnonstop
United Airlines Logo
7:00 am - 11:54 amTYS-IAH
5h 54m1 stop
$219United Airlines
Find Deal
Thu, Aug 21 - Sat, Aug 23
Delta Logo
6:34 pm - 11:48 pmHOU-TYS
4h 14m1 stop
Delta Logo
5:45 am - 9:26 amTYS-HOU
4h 41m1 stop
$229Delta
Find Deal
Thu, Aug 21 - Sat, Aug 23
Delta Logo
5:20 am - 11:34 amIAH-TYS
5h 14m1 stop
Delta Logo
6:14 pm - 11:56 pmTYS-IAH
6h 42m1 stop
$229Delta
Find Deal
Wed, Aug 27 - Sat, Aug 30
American Airlines Logo
4:20 pm - 11:53 pmHOU-TYS
6h 33m1 stop
American Airlines Logo
5:30 am - 9:44 amTYS-HOU
5h 14m1 stop
$239American Airlines
Find Deal
Thu, Aug 21 - Mon, Aug 25
American Airlines Logo
7:47 am - 1:36 pmIAH-TYS
4h 49m1 stop
American Airlines Logo
5:30 am - 9:16 amTYS-IAH
4h 46m1 stop
$239American Airlines
Find Deal
Thu, Aug 21 - Sun, Aug 24

Allegiant Air flights from Houston to Knoxville

Our best Allegiant Air deals on Houston to Knoxville flight tickets
Allegiant Air
Aug 15
HOU8:02 pmHouston Hobby
2h 01m
TYS11:03 pmKnoxville McGhee Tyson
Aug 18
TYS5:47 pmKnoxville McGhee Tyson
2h 25m
HOU7:12 pmHouston Hobby
$82
Find similar
Allegiant Air
Aug 15
HOU8:02 pmHouston Hobby
2h 01m
TYS11:03 pmKnoxville McGhee Tyson
Aug 18
TYS5:47 pmKnoxville McGhee Tyson
2h 25m
HOU7:12 pmHouston Hobby
$85
Find similar
Allegiant Air
Nov 13
HOU8:47 amHouston Hobby
2h 01m
TYS11:48 amKnoxville McGhee Tyson
Nov 16
TYS6:30 amKnoxville McGhee Tyson
2h 27m
HOU7:57 amHouston Hobby
$91
Find similar

American Airlines flights from Houston to Knoxville

Our best American Airlines deals on Houston to Knoxville flight tickets
American Airlines
Aug 21
HOU4:20 pmHouston Hobby
6h 33m
1 stop
TYS11:53 pmKnoxville McGhee Tyson
Aug 25
TYS5:30 amKnoxville McGhee Tyson
5h 14m
1 stop
HOU9:44 amHouston Hobby
$239
Find similar
American Airlines
Nov 27
IAH6:06 amHouston George Bush Intcntl
9h 07m
2 stops
TYS4:13 pmKnoxville McGhee Tyson
Dec 8
TYS6:20 pmKnoxville McGhee Tyson
4h 42m
1 stop
IAH10:02 pmHouston George Bush Intcntl
$244
Find similar
American Airlines
Aug 15
IAH6:50 pmHouston George Bush Intcntl
4h 29m
1 stop
TYS12:19 amKnoxville McGhee Tyson
Aug 18
TYS5:30 amKnoxville McGhee Tyson
4h 47m
1 stop
IAH9:17 amHouston George Bush Intcntl
$249
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Houston to Knoxville 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 August 2, 2025.
Use the filters below to find and compare flights from Houston to Knoxville that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

HoustonKnoxville

HOU - TYS

HOUTYS

Houston Hobby

Fri 8/15

8:02 pm-11:03 pm

Nonstop2h 01m

Knoxville McGhee Tyson

Mon 8/18

5:47 pm-7:12 pm

Nonstop2h 25m

$82

HoustonKnoxville

HOU - TYS

HOUTYS

Houston Hobby

Fri 8/15

8:02 pm-11:03 pm

Nonstop2h 01m

Knoxville McGhee Tyson

Mon 8/18

5:47 pm-7:12 pm

Nonstop2h 25m

$85

HoustonKnoxville

IAH - TYS

IAHTYS

Houston George Bush Intcntl

Fri 10/17

5:50 am-11:16 pm

1 stop16h 26m

Knoxville McGhee Tyson

Tue 10/21

11:23 am-10:42 pm

1 stop12h 19m

$195

HoustonKnoxville

IAH - TYS

IAHTYS

Houston George Bush Intcntl

Fri 9/26

5:30 am-5:34 pm

1 stop11h 04m

Knoxville McGhee Tyson

Mon 9/29

1:50 pm-11:45 pm

1 stop10h 55m

$197

HoustonKnoxville

IAH - TYS

IAHTYS

Houston George Bush Intcntl

Thu 8/21

8:20 pm-11:44 pm

Nonstop2h 24m

Knoxville McGhee Tyson

Sat 8/23

9:30 am-11:00 am

Nonstop2h 30m

$209

HoustonKnoxville

IAH - TYS

IAHTYS

Houston George Bush Intcntl

Thu 8/21

8:20 pm-11:44 pm

Nonstop2h 24m

Knoxville McGhee Tyson

Sat 8/23

7:00 am-11:54 am

1 stop5h 54m

$219

HoustonKnoxville

HOU - TYS

HOUTYS

Houston Hobby

Thu 8/21

6:34 pm-11:48 pm

1 stop4h 14m

Knoxville McGhee Tyson

Sat 8/23

5:45 am-9:26 am

1 stop4h 41m

$229

HoustonKnoxville

IAH - TYS

IAHTYS

Houston George Bush Intcntl

Wed 8/27

5:20 am-11:34 am

1 stop5h 14m

Knoxville McGhee Tyson

Sat 8/30

6:14 pm-11:56 pm

1 stop6h 42m

$229

HoustonKnoxville

HOU - TYS

HOUTYS

Houston Hobby

Thu 8/21

4:20 pm-11:53 pm

1 stop6h 33m

Knoxville McGhee Tyson

Mon 8/25

5:30 am-9:44 am

1 stop5h 14m

$239

HoustonKnoxville

IAH - TYS

IAHTYS

Houston George Bush Intcntl

Thu 8/21

7:47 am-1:36 pm

1 stop4h 49m

Knoxville McGhee Tyson

Sun 8/24

5:30 am-9:16 am

1 stop4h 46m

$239

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 Knoxville from

How to get the cheapest flight ticket from Houston to Knoxville

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 Knoxville?

The month of August is, on average, the cheapest month to fly to Knoxville from Houston, with most prices found around $253. If you aren’t able to travel during the month of August, then book flights to Knoxville from Houston during June instead. Flights to Knoxville in June, while not as cheap as those in August, still average around $258.

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

The cheapest day to depart from Houston to Knoxville is on a Thursday. Travelers who choose to depart for Knoxville on a Thursday will often find tickets for as low as $90. When flying out on a Wednesday, the most expensive travel day of the week, you can expect to see flight prices from Houston to Knoxville for around $321.

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

In the evening is the cheapest time of day to fly from Houston to Knoxville when you can find flight prices for as low as $305. Flying to Knoxville in the evening is an ideal time because this is during off-peak travel hours. In contrast, the most expensive time of day to depart to Knoxville is in the afternoon when prices are around $436.

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

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

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

You are more likely to see cheaper flights to Knoxville from Houston when booking weeks ahead of your departure date. In general, you can expect to find flights to Knoxville for around $307 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Knoxville from Houston for as low as $176 on momondo.

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

There are 1 cabin classes available to choose from on Houston to Knoxville McGhee Tyson flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap Houston to Knoxville flight deals and tips

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

Best Price Found

$51

Fastest flight time

2h 00m

Direct flights

Every day

Airports in Knoxville

1 airport
The best one-way flight to Knoxville from Houston in the past 72 hours is $51. The best round-trip flight deal from Houston to Knoxville found on momondo in the last 72 hours is $82.
The fastest flight from Houston to Knoxville takes 2h 00m
Direct flights go from Houston to Knoxville every day.
There is 1 airport near Knoxville: Knoxville McGhee Tyson (TYS)
Search flight deals

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

    There are 789.2 mi between Houston and Knoxville McGhee Tyson. Typically, this will take 2h 00m by plane in normal conditions.

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

    Prices for flights from Houston to Knoxville McGhee Tyson Airport were last updated today.

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Houston to Knoxville McGhee Tyson Airport.

  • What documentation or ID do you need to fly to Knoxville McGhee Tyson Airport?

    The necessary travel and health documents for your Knoxville McGhee Tyson Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Houston to Knoxville

Compare and see reviews for airlines that fly from Houston to Knoxville with momondo
Airline
Rating
Free Cancellation
Price
Allegiant AirPriceFrom $53Free CancellationRating
7.2
702 reviews
Search Allegiant Air flights
DeltaPriceFrom $196Free CancellationRating
8.0
7,983 reviews
Search Delta flights
American AirlinesPriceFrom $198Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $243Free CancellationRating
7.4
8,904 reviews
Search United Airlines flights

Traveling to a place near Knoxville?

Book flights to Knoxville if you plan to visit one of these locations
Pigeon Forge
Gatlinburg
Cherokee
Bryson City
Morristown
Corbin
Crossville
Maryville
Murphy
Newport
Alcoa
Lenoir City
Oak Ridge
Kodak
Dandridge
Clinton
Jefferson City
Rockford

Why use momondo?

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

It is quick and easy to find Houston to Knoxville 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 Knoxville that suits you.

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

Yes. momondo allows you to filter the results for Houston to Knoxville flights to just show those with flexible booking policies.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Houston to Knoxville.

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

Yes momondo offers price alerts on flights to Knoxville from Houston. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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