HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Knoxville

$51+ Cheap flights from Houston to Knoxville (TYS)

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 7/7. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — TYS
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Houston to Knoxville with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Houston to Knoxville McGhee Tyson are usually found in July or October, booked 68 days in advance, depart on a Wednesday or Thursday and return on a Wednesday

Cheap flight deals from Houston to Knoxville

Discover tips and strategies to find the most affordable flight options for your journey from Houston (HO1) to Knoxville (TYS). 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 April 17, 2025.

Round-trip from

$226
(Mytrip)

One-way from

$51
(Mytrip)

Popular in

March

Cheapest in

July

Average price

$332
From Houston to Knoxville McGhee Tyson
Search Deals
One-way flight from Houston to Knoxville McGhee Tyson
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($37 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

Find flight deals from Houston to Knoxville

Cheapest flights from Houston to Knoxville
Explore the most affordable flight options available from Houston to Knoxville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2025.

This United Airlines deal was found by Cheapflights users on 4/17. 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.
Sat 5/178:25 pmIAH - TYS
Nonstop2h 21mUnited Airlines
Tue 5/209:15 amTYS - IAH
Nonstop2h 39mUnited Airlines
Deal found 4/17$226
This American Airlines deal was found by Cheapflights users on 4/16. 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.
Fri 8/156:39 pmHOU - TYS
1 stop4h 43mAmerican Airlines
Mon 8/186:36 pmTYS - HOU
1 stop6h 06mAmerican Airlines
Deal found 4/16$229
This American Airlines deal was found by Cheapflights users on 4/17. 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.
Fri 5/96:00 amIAH - TYS
1 stop7h 05mAmerican Airlines
Sun 5/117:54 pmTYS - IAH
1 stop5h 47mAmerican Airlines
Deal found 4/17$229
This Mytrip deal was found by Cheapflights users on 4/17. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/610:39 amHOU - TYS
2 stops10h 38mAllegiant Air
Mon 6/95:01 pmTYS - HOU
Nonstop2h 10mAllegiant Air
Deal found 4/17$234
This Mytrip deal was found by Cheapflights users on 4/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/228:06 pmHOU - TYS
1 stop14h 36mMultiple Airlines
Mon 5/265:47 pmTYS - HOU
Nonstop2h 25mMultiple Airlines
Deal found 4/15$241
This Mytrip deal was found by Cheapflights users on 4/17. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/175:44 pmIAH - TYS
1 stop25h 25mMultiple Airlines
Tue 5/208:30 amTYS - IAH
2 stops16h 37mMultiple Airlines
Deal found 4/17$251
This Delta deal was found by Cheapflights users on 4/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/296:00 amHOU - TYS
1 stop6h 26mDelta
Tue 8/54:00 pmTYS - HOU
1 stop5h 50mDelta
Deal found 4/16$254
This Delta deal was found by Cheapflights users on 4/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/299:40 amIAH - TYS
1 stop4h 37mDelta
Tue 6/37:50 amTYS - IAH
1 stop8h 33mDelta
Deal found 4/16$254
This Frontier deal was found by Cheapflights users on 4/17. 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 5/226:00 amIAH - TYS
1 stop9h 35mFrontier
Sun 5/255:30 pmTYS - IAH
1 stop7h 17mFrontier
Deal found 4/17$261

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated April 17, 2025.
Use the filters below to find and compare flights from Houston to Knoxville that are best for you.

Fly from

Houston

Fly to

Knoxville

Route

Depart

Return

Price

HoustonKnoxville

IAH - TYS

IAHTYS

Houston George Bush Intcntl

Sat 5/17

8:25 pm-11:46 pm

Nonstop2h 21m

Knoxville McGhee Tyson

Tue 5/20

9:15 am-10:54 am

Nonstop2h 39m

$226

HoustonKnoxville

HOU - TYS

HOUTYS

Houston Hobby

Wed 5/7

5:00 am-11:41 am

1 stop5h 41m

Knoxville McGhee Tyson

Wed 5/14

6:28 pm-11:58 pm

1 stop6h 30m

$229

HoustonKnoxville

IAH - TYS

IAHTYS

Houston George Bush Intcntl

Fri 5/9

6:00 am-2:05 pm

1 stop7h 05m

Knoxville McGhee Tyson

Sun 5/11

7:54 pm-12:41 am

1 stop5h 47m

$229

HoustonKnoxville

HOU - TYS

HOUTYS

Houston Hobby

Fri 6/6

10:39 am-10:17 pm

2 stops10h 38m

Knoxville McGhee Tyson

Mon 6/9

5:01 pm-6:11 pm

Nonstop2h 10m

$234

HoustonKnoxville

HOU - TYS

HOUTYS

Houston Hobby

Thu 5/22

8:06 pm-11:42 am

1 stop14h 36m

Knoxville McGhee Tyson

Mon 5/26

5:47 pm-7:12 pm

Nonstop2h 25m

$241

HoustonKnoxville

IAH - TYS

IAHTYS

Houston George Bush Intcntl

Sat 5/17

5:44 pm-8:09 pm

1 stop25h 25m

Knoxville McGhee Tyson

Tue 5/20

8:30 am-12:07 am

2 stops16h 37m

$251

HoustonKnoxville

HOU - TYS

HOUTYS

Houston Hobby

Fri 7/11

1:00 pm-6:17 pm

1 stop4h 17m

Knoxville McGhee Tyson

Mon 7/14

12:00 pm-3:02 pm

1 stop4h 02m

$254

HoustonKnoxville

IAH - TYS

IAHTYS

Houston George Bush Intcntl

Thu 5/29

9:40 am-3:17 pm

1 stop4h 37m

Knoxville McGhee Tyson

Tue 6/3

7:50 am-3:23 pm

1 stop8h 33m

$254

HoustonKnoxville

IAH - TYS

IAHTYS

Houston George Bush Intcntl

Thu 5/22

6:00 am-4:35 pm

1 stop9h 35m

Knoxville McGhee Tyson

Sun 5/25

5:30 pm-11:47 pm

1 stop7h 17m

$261

HoustonKnoxville

HOU - TYS

HOUTYS

Houston Hobby

Mon 7/7

7:03 pm-10:10 pm

Nonstop2h 07m

$51

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/17

Showing 1-10 of 19 results
1
2

Best time to book a flight from Houston to Knoxville

Have a flexible travel schedule? Discover the best time to fly to Knoxville from Houston 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 Houston to Knoxville

How far ahead should I book a flight from Houston to Knoxville?

Use this chart to determine the optimal time to book a round-trip flight from Houston to Knoxville. Price data was last updated on April 11, 2025.

Booking 68 days in advance of your planned departure date is, on average, the best time to get cheap flights from Houston to Knoxville. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Houston to Knoxville?

Currently, January is the cheapest month in which you can book a flight from Houston to Knoxville (average of $296). Flying from Houston to Knoxville in March is currently the most expensive (average of $376). 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 HOU to TYS?

Find hourly flight availability from Houston to Knoxville. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 17, 2025.

When flying from Houston to Knoxville, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 7% versus a flight in the morning.

What is the cheapest day to fly from Houston to Knoxville?

Use this chart to determine the cheapest time to fly round-trip from Houston to Knoxville. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Houston to Knoxville flight should consider departing on Monday at noon when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Knoxville by month

Plan your trip to Knoxville by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Knoxville ranges from 2.7 - 4.8 inches per month. March is typically the wettest month, when rainfall can reach 4.8 in. October is typically the driest time to visit Knoxville when rainfall is around 2.7 in.

Temperature in Knoxville by month

Plan your trip to Knoxville by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Knoxville, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

Reviews of airlines servicing Knoxville

Get insights into the airlines that provide service to Knoxville. 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 Knoxville. Reviews last updated April 17, 2025.
Read reviews from past customers who have flown Delta, United Airlines and Allegiant Air from Houston to Knoxville. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,917 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,917 reviews
Delta
8.0
Very good
7,917 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,667 reviews
Delta
8.0
Very good
7,917 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Allegiant Air
7.3
Good
734 reviews
Delta
8.0
Very good
7,917 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,917 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Frontier
6.0
Okay
3,281 reviews
Delta
8.0
Very good
7,917 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Houston to Knoxville. 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 into for flights to Knoxville from Houston?

    Most people fly into Knoxville McGhee Tyson (TYS) if they book a flight to Knoxville from Houston. On average, McGhee Tyson has 0 inbound flights from Houston per day from 4 airlines. Knoxville McGhee Tyson is conveniently located just 11.3 mi from Knoxville’s city center.

  • What are the cheapest airlines flying from Houston to Knoxville round-trip?

    According to our current data, American Airlines ($229), Delta ($229), and Allegiant Air ($234) offers the cheapest pricing from Houston to Knoxville. American Airlines is currently priced 24% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Houston to Knoxville one-way?

    For one-way options, check prices for Allegiant Air. According to our data, you can fly for as low as $51. Users have also found prices from $191 and $234 on Frontier and Delta, respectively.

  • What are the cheapest flights from Houston to Knoxville?

    Looking for the cheapest flight from Houston to Knoxville? While on average our users pay $101, our data indicates the cheapest price to be $63. The most popular route (Houston Hobby - Knoxville McGhee Tyson), is priced around $83.

  • Can I find deals for flights from Houston to Knoxville that include hotel bookings?

    Yes. In addition to deals on Houston to Knoxville flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Houston to Knoxville?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Houston to Knoxville.

  • Can I find deals for business class flights from Houston to Knoxville?

    Yes. Cheapflights offers flight deals from Houston to Knoxville 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 Houston to Knoxville?

    Currently, January is the cheapest month in which you can book a flight from Houston to Knoxville (average of $296). Flying from Houston to Knoxville in March is currently the most expensive (average of $376). 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?

Book flights to Houston if you plan to visit one of these locations
Morristown
Cherokee
Corbin
Maryville
Oak Ridge
Alcoa
Murphy

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Houston to Knoxville

See prices for flight routes from nearby airports that may be better suited for you.
Dallas/Fort Worth to Nashville flights
Hobby to Nashville flights
Dallas/Fort Worth to Memphis flights
George Bush Intcntl to Nashville flights
Dallas/Fort Worth to Knoxville flights
Austin to Nashville flights
Love Field to Nashville flights
Hobby to Knoxville flights
George Bush Intcntl to Knoxville flights
Hobby to Memphis flights
San Antonio to Nashville flights
George Bush Intcntl to Memphis flights
Love Field to Memphis flights
Hobby to Chattanooga flights
Dallas/Fort Worth to Chattanooga flights
Austin to Knoxville flights
George Bush Intcntl to Chattanooga flights
Austin to Memphis flights
Austin to Chattanooga flights
Love Field to Knoxville flights
El Paso to Nashville flights
San Antonio to Knoxville flights
Austin to Blountville flights
Harlingen to Nashville flights
San Antonio to Memphis flights
Amarillo to Knoxville flights
Midland to Nashville flights
Midland to Knoxville flights
El Paso to Chattanooga flights
Corpus Christi to Nashville flights
El Paso to Knoxville flights
Dallas/Fort Worth to Blountville flights
McAllen to Nashville flights
Hobby to Blountville flights
George Bush Intcntl to Blountville flights
San Antonio to Chattanooga flights
Lubbock to Chattanooga flights
San Antonio to Blountville flights
Love Field to Chattanooga flights
Lubbock to Nashville flights
Love Field to Blountville flights
Amarillo to Nashville flights
College Station to Nashville flights
Amarillo to Memphis flights
Tyler to Nashville flights
Laredo to Nashville flights
McAllen to Knoxville flights
Brownsville to Nashville flights
Killeen to Nashville flights
Corpus Christi to Memphis flights

Top 4 airlines flying from Houston to Knoxville

Discover the top 4 airlines that operate flights from Houston to Knoxville. 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 April 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$78Average$117FlexibilityNo cancel feeOn-time88%
American AirlinesCheapest$148Average$295FlexibilityNo cancel feeOn-time71%
DeltaCheapest$196Average$290FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$246Average$427FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.