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$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 10/5. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — TYS
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheapflights Tip: The best prices from Houston to Knoxville McGhee Tyson are usually found in October or August, booked 65 days in advance, depart on a Wednesday or Monday and return on a Tuesday

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 September 15, 2025.

Round-trip from

$101
(Cheapflightsfares)

One-way from

$51
(Cheapflightsfares)

Popular in

March

Cheapest in

October

Average price

$392
From Houston to Knoxville McGhee Tyson
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One-way flight from Houston to Knoxville McGhee Tyson
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Highest demand for flights based on searches. 11% potential increase in price ($40 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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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 September 15, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 9/14. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/68:47 amHOU - TYS
Nonstop2h 01mAllegiant Air
Sun 11/96:30 amTYS - HOU
Nonstop2h 27mAllegiant Air
Deal found 9/14$101
This Cheapflightsfares deal was found by Cheapflights users on 9/14. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/199:28 amHOU - TYS
Nonstop2h 00mAllegiant Air
Thu 10/237:20 amTYS - HOU
Nonstop2h 18mAllegiant Air
Deal found 9/14$114
This Cheapflightsfares deal was found by Cheapflights users on 9/14. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/138:47 amHOU - TYS
Nonstop2h 01mAllegiant Air
Sun 11/166:30 amTYS - HOU
Nonstop2h 27mAllegiant Air
Deal found 9/14$130
This Cheapflightsfares deal was found by Cheapflights users on 9/13. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/308:38 amHOU - TYS
Nonstop2h 00mAllegiant Air
Sun 11/25:30 amTYS - HOU
Nonstop2h 18mAllegiant Air
Deal found 9/13$156
This Cheapflightsfares deal was found by Cheapflights users on 9/14. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/218:32 pmHOU - TYS
Nonstop2h 02mAllegiant Air
Mon 11/246:22 pmTYS - HOU
Nonstop2h 20mAllegiant Air
Deal found 9/14$166
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/276:00 amIAH - TYS
1 stop12h 32mMultiple Airlines
Fri 10/318:15 amTYS - IAH
1 stop26h 18mMultiple Airlines
Deal found 9/15$190
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/239:28 amHOU - TYS
Nonstop2h 00mAllegiant Air
Sun 10/267:20 amTYS - HOU
Nonstop2h 18mAllegiant Air
Deal found 9/15$192
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/67:08 pmIAH - TYS
1 stop25h 36mMultiple Airlines
Wed 12/106:09 pmTYS - IAH
1 stop15h 45mMultiple Airlines
Deal found 9/15$193
This eDestinos deal was found by Cheapflights users on 9/14. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/276:00 amIAH - TYS
1 stop12h 32mMultiple Airlines
Thu 10/307:00 amTYS - IAH
1 stop17h 39mMultiple Airlines
Deal found 9/14$206
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/208:37 pmIAH - TYS
1 stop17h 29mMultiple Airlines
Fri 10/241:23 pmTYS - IAH
1 stop24h 29mMultiple Airlines
Deal found 9/15$213
This United Airlines deal was found by Cheapflights users on 9/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/28:20 pmIAH - TYS
Nonstop2h 23mUnited Airlines
Tue 10/79:30 amTYS - IAH
Nonstop2h 31mUnited Airlines
Deal found 9/15$219
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/38:14 pmIAH - TYS
1 stop23h 54mMultiple Airlines
Mon 10/610:46 amTYS - IAH
1 stop7h 28mMultiple Airlines
Deal found 9/15$225

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 September 15, 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

HOU - TYS

HOUTYS

Houston Hobby

Thu 11/6

8:47 am-11:48 am

Nonstop2h 01m

Knoxville McGhee Tyson

Sun 11/9

6:30 am-7:57 am

Nonstop2h 27m

$101

HoustonKnoxville

HOU - TYS

HOUTYS

Houston Hobby

Thu 10/30

8:38 am-11:38 am

Nonstop2h 00m

Knoxville McGhee Tyson

Sun 11/2

5:30 am-6:48 am

Nonstop2h 18m

$156

HoustonKnoxville

HOU - TYS

HOUTYS

Houston Hobby

Fri 3/6

1:05 pm-9:15 pm

2 stops7h 10m

Knoxville McGhee Tyson

Sun 3/8

7:25 pm-12:45 am

1 stop6h 20m

$188

HoustonKnoxville

HOU - TYS

HOUTYS

Houston Hobby

Thu 10/23

9:28 am-12:28 pm

Nonstop2h 00m

Knoxville McGhee Tyson

Sun 10/26

7:20 am-8:38 am

Nonstop2h 18m

$192

HoustonKnoxville

HOU - TYS

HOUTYS

Houston Hobby

Sat 11/8

6:37 pm-12:08 am

1 stop4h 31m

Knoxville McGhee Tyson

Fri 11/14

5:10 am-9:41 am

1 stop5h 31m

$229

HoustonKnoxville

HOU - TYS

HOUTYS

Houston Hobby

Sun 10/26

10:13 am-2:43 pm

1 stop3h 30m

Knoxville McGhee Tyson

Sat 11/1

5:16 pm-11:00 pm

1 stop6h 44m

$229

HoustonKnoxville

HOU - TYS

HOUTYS

Houston Hobby

Mon 11/10

6:53 pm-11:52 pm

1 stop3h 59m

Knoxville McGhee Tyson

Sun 11/16

8:05 pm-11:46 pm

1 stop4h 41m

$229

HoustonKnoxville

IAH - TYS

IAHTYS

Houston George Bush Intcntl

Thu 11/27

7:01 am-2:46 pm

1 stop6h 45m

Knoxville McGhee Tyson

Mon 12/8

7:59 pm-11:57 pm

1 stop4h 58m

$229

HoustonKnoxville

IAH - TYS

IAHTYS

Houston George Bush Intcntl

Sat 12/6

2:55 pm-6:09 pm

Nonstop2h 14m

Knoxville McGhee Tyson

Wed 12/10

7:05 am-8:48 am

Nonstop2h 43m

$256

HoustonKnoxville

HOU - TYS

HOUTYS

Houston Hobby

Wed 11/5

4:24 pm-12:08 am

1 stop6h 44m

Knoxville McGhee Tyson

Sat 11/8

5:10 am-11:42 am

1 stop7h 32m

$259

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 40 results
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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 September 12, 2025.

Booking 65 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 $295). 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 September 15, 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 in the evening, which can drop the price by up to 68% versus a flight at noon.

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.

How much does it cost to fly round-trip from Houston to Knoxville?

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 September 15, 2025.
See what other customers who have flown with Delta, United Airlines, and American Airlines from Houston to Knoxville have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,954 reviews

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,954 reviews
Delta
8.0
Very good
7,954 reviews

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,929 reviews
Delta
8.0
Very good
7,954 reviews

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,954 reviews

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Allegiant Air
7.2
Good
699 reviews
Delta
8.0
Very good
7,954 reviews

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.

  • How long is the flight from Houston to Knoxville?

    For as low as $101, Allegiant Air can have you in Knoxville from Houston in 2h 01m. Airlines will cover a distance of 781 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    According to our current data, Allegiant Air ($53), Delta ($196), and United Airlines ($228) offers the cheapest pricing from Houston to Knoxville. Allegiant Air is currently priced 82% 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 $136 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 $112, our data indicates the cheapest price to be $81. The most popular route (Houston George Bush Intcntl - Knoxville McGhee Tyson), is priced around $210.

  • 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 $295). 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 Knoxville?

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

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Alternative routes for Houston to Knoxville

See prices for flight routes from nearby airports that may be better suited for you.
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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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$53Average$112FlexibilityNo cancel feeOn-time88%
DeltaCheapest$196Average$303FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$228Average$440FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$228Average$315FlexibilityNo cancel feeOn-time71%

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