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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 8/15. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — TYS
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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Cheapflights Tip: The best prices from Houston to Knoxville McGhee Tyson are usually found in June or August, booked 87 days in advance, depart on a Wednesday or Monday 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 July 31, 2025.

Round-trip from

$95
(Cheapflightsfares)

One-way from

$51
(Mytrip)

Popular in

September

Cheapest in

June

Average price

$308
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. 2% potential increase in price ($7 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 31, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 7/29. 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 7/29$91
This Mytrip deal was found by Cheapflights users on 7/31. 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 10/175:50 amIAH - TYS
1 stop16h 26mMultiple Airlines
Tue 10/2111:23 amTYS - IAH
1 stop12h 19mMultiple Airlines
Deal found 7/31$195
This United Airlines deal was found by Cheapflights users on 7/30. 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 8/218:20 pmIAH - TYS
Nonstop2h 24mUnited Airlines
Sat 8/239:30 amTYS - IAH
Nonstop2h 30mUnited Airlines
Deal found 7/30$209
This Delta deal was found by Cheapflights users on 7/31. 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 8/216:34 pmHOU - TYS
1 stop4h 14mDelta
Sat 8/235:45 amTYS - HOU
1 stop4h 41mDelta
Deal found 7/31$229
This Delta deal was found by Cheapflights users on 7/31. 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.
Wed 10/15:45 amIAH - TYS
1 stop4h 11mDelta
Mon 10/68:10 pmTYS - IAH
1 stop4h 49mDelta
Deal found 7/31$229
This FlightHub deal was found by Cheapflights users on 7/30. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1310:04 pmIAH - TYS
1 stop17h 25mFrontier
Sun 8/175:25 pmTYS - IAH
1 stop7h 11mFrontier
Deal found 7/30$235
This American Airlines deal was found by Cheapflights users on 7/29. 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.
Tue 8/126:00 amHOU - TYS
1 stop6h 38mAmerican Airlines
Tue 8/192:23 pmTYS - HOU
1 stop4h 37mAmerican Airlines
Deal found 7/29$239
This American Airlines deal was found by Cheapflights users on 7/29. 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.
Tue 8/126:50 pmIAH - TYS
1 stop4h 29mAmerican Airlines
Tue 8/1912:20 pmTYS - IAH
1 stop4h 26mAmerican Airlines
Deal found 7/29$239
This Mytrip deal was found by Cheapflights users on 7/29. 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.
Sun 10/129:28 amHOU - TYS
Nonstop2h 00mMultiple Airlines
Thu 10/163:22 pmTYS - HOU
2 stops21h 06mMultiple Airlines
Deal found 7/29$336

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 July 31, 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

Fri 8/8

7:03 pm-10:10 pm

Nonstop2h 07m

Knoxville McGhee Tyson

Fri 8/15

5:47 pm-7:12 pm

Nonstop2h 25m

$95

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

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

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 10/1

5:45 am-10:56 am

1 stop4h 11m

Knoxville McGhee Tyson

Mon 10/6

8:10 pm-11:59 pm

1 stop4h 49m

$229

HoustonKnoxville

IAH - TYS

IAHTYS

Houston George Bush Intcntl

Wed 8/13

10:04 pm-4:29 pm

1 stop17h 25m

Knoxville McGhee Tyson

Sun 8/17

5:25 pm-11:36 pm

1 stop7h 11m

$235

HoustonKnoxville

HOU - TYS

HOUTYS

Houston Hobby

Tue 8/12

6:00 am-1:38 pm

1 stop6h 38m

Knoxville McGhee Tyson

Tue 8/19

2:23 pm-6:00 pm

1 stop4h 37m

$239

HoustonKnoxville

IAH - TYS

IAHTYS

Houston George Bush Intcntl

Tue 8/12

6:50 pm-12:19 am

1 stop4h 29m

Knoxville McGhee Tyson

Tue 8/19

12:20 pm-3:46 pm

1 stop4h 26m

$239

HoustonKnoxville

HOU - TYS

HOUTYS

Houston Hobby

Sun 10/12

9:28 am-12:28 pm

Nonstop2h 00m

Knoxville McGhee Tyson

Thu 10/16

3:22 pm-11:28 am

2 stops21h 06m

$336

HoustonKnoxville

HOU - TYS

HOUTYS

Houston Hobby

Fri 8/15

8:02 pm-11:03 pm

Nonstop2h 01m

$51

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Showing 1-10 of 18 results
1
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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 July 25, 2025.

Booking 87 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 $294). 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 July 31, 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 11% 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 Thursday mornings 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.

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 July 31, 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
7,981 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

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
7,981 reviews
Delta
8.0
Very good
7,981 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

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
8,900 reviews
Delta
8.0
Very good
7,981 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

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
7,981 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

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
702 reviews
Delta
8.0
Very good
7,981 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

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!
Frontier
5.9
Fair
3,239 reviews
Delta
8.0
Very good
7,981 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

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.

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

    According to our current data, Allegiant Air ($95), United Airlines ($209), and Delta ($229) offers the cheapest pricing from Houston to Knoxville. Allegiant Air is currently priced 69% 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 $117 and $149 on Frontier and American Airlines, 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 $111, our data indicates the cheapest price to be $74. The most popular route (Houston Hobby - Knoxville McGhee Tyson), is priced around $82.

  • 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 $294). 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 July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$53Average$112FlexibilityNo cancel feeOn-time88%
DeltaCheapest$196Average$294FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$198Average$369FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$243Average$441FlexibilityNo cancel feeOn-time69%

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