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$54 Find Cheap Flights from Houston to Knoxville - Compare and Save

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Everything you should know

Cheapest round-trip
$116
Typical prices: $221-$485
Allegiant Air
Fri 10/19Tue 10/30
HOU - TYS • Non-stop
Cheapest one-way
$54
Typical prices: $135-$339
Allegiant Air
Fri 10/19
HOU - TYS • Non-stop
Nonstop flights
You can fly direct with United Airlines and Allegiant Air. Average duration is 2h 16m
Direct flights
+1
Direct flights
+1
Top routes
Cheapest • 38% average savings
Most popular
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 26 weeks in advance save around 59% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 19% price drop
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Cheapest • Avg $234 (round-trip)
Shortest trip • 4h 38m (one-way)
Insights
Insights
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We hope you love your trip to Knoxville!
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Expert advice
Flight Deals

Cheap Flights from Houston to Knoxville

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Houston to Knoxville

Mon, Oct 19 - Fri, Oct 30
Allegiant Air Logo
5:04 pm - 8:08 pmHOU  Houston Hobby-TYS Knoxville McGhee Tyson
2h 04mnonstop
Allegiant Air Logo
2:54 pm - 4:11 pmTYS  Knoxville McGhee Tyson-HOU Houston Hobby
2h 17mnonstop
$116Allegiant Air
Mon, Oct 19 - Fri, Oct 23
Allegiant Air Logo
5:04 pm - 8:08 pmHOU  Houston Hobby-TYS Knoxville McGhee Tyson
2h 04mnonstop
Allegiant Air Logo
2:54 pm - 4:11 pmTYS  Knoxville McGhee Tyson-HOU Houston Hobby
2h 17mnonstop
$117Allegiant Air
Sat, Nov 7 - Thu, Nov 12
Multiple Airlines Logo
8:18 am - 8:05 amIAH  Houston George Bush Intcntl-TYS Knoxville McGhee Tyson
22h 47m1 stop Fort Lauderdale
Multiple Airlines Logo
6:33 pm - 7:23 amTYS  Knoxville McGhee Tyson-IAH Houston George Bush Intcntl
37h 50m2 stops Jacksonville Atlanta Hartsfield-Jackson
$226Multiple Airlines
Sat, Nov 7 - Thu, Nov 12
Multiple Airlines Logo
8:18 am - 8:05 amIAH  Houston George Bush Intcntl-TYS Knoxville McGhee Tyson
22h 47m1 stop Fort Lauderdale
Multiple Airlines Logo
5:37 pm - 2:44 pmTYS  Knoxville McGhee Tyson-IAH Houston George Bush Intcntl
22h 07m1 stop Fort Lauderdale
$231Multiple Airlines
Wed, Oct 28 - Mon, Nov 2
Southwest Logo
10:50 am - 8:10 pmHOU  Houston Hobby-TYS Knoxville McGhee Tyson
8h 20m1 stop Baltimore/Washington
Southwest Logo
7:25 pm - 12:30 amTYS  Knoxville McGhee Tyson-HOU Houston Hobby
6h 05m1 stop Nashville Intl
$238Southwest
Wed, Oct 28 - Mon, Nov 2
Southwest Logo
11:30 am - 9:05 pmHOU  Houston Hobby-TYS Knoxville McGhee Tyson
8h 35m2 stops Lambert-St Louis Nashville Intl
Southwest Logo
7:25 pm - 12:30 amTYS  Knoxville McGhee Tyson-HOU Houston Hobby
6h 05m1 stop Nashville Intl
$243Southwest
Tue, Nov 17 - Tue, Dec 1
United Airlines Logo
2:40 pm - 5:54 pmIAH  Houston George Bush Intcntl-TYS Knoxville McGhee Tyson
2h 14mnonstop
United Airlines Logo
5:00 pm - 6:40 pmTYS  Knoxville McGhee Tyson-IAH Houston George Bush Intcntl
2h 40mnonstop
$311United Airlines
Sat, Oct 3 - Tue, Oct 6
United Airlines Logo
2:45 pm - 6:05 pmIAH  Houston George Bush Intcntl-TYS Knoxville McGhee Tyson
2h 20mnonstop
United Airlines Logo
7:15 am - 8:44 amTYS  Knoxville McGhee Tyson-IAH Houston George Bush Intcntl
2h 29mnonstop
$319United Airlines
Sat, Nov 14 - Wed, Nov 18
American Airlines Logo
6:00 am - 1:42 pmIAH  Houston George Bush Intcntl-TYS Knoxville McGhee Tyson
6h 42m1 stop Charlotte Douglas
American Airlines Logo
2:13 pm - 7:36 pmTYS  Knoxville McGhee Tyson-IAH Houston George Bush Intcntl
6h 23m1 stop Charlotte Douglas
$319American Airlines
Thu, Dec 3 - Sun, Dec 6
American Airlines Logo
6:00 am - 2:05 pmHOU  Houston Hobby-TYS Knoxville McGhee Tyson
7h 05m1 stop Dallas/Fort Worth
American Airlines Logo
5:30 am - 11:05 amTYS  Knoxville McGhee Tyson-HOU Houston Hobby
6h 35m1 stop Dallas/Fort Worth
$319American Airlines
Booking Insights

Price, demand and travel trends for Houston to Knoxville flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Houston to Knoxville with more confidence.

How much is a round-trip flight from Houston to Knoxville?

Round-trip flights from Houston to Knoxville start at $116. Prices are below average for this route right now, with typical round-trip fares ranging from $221 to $485. The lowest price found in the past 5 days was $116 on Allegiant Air.

What's the cheapest day of the week to fly from Houston to Knoxville?

Friday is the cheapest day of the week to fly from Houston to Knoxville, it is 19% cheaper than the average day. Tuesday is the most expensive day with flight prices 19% higher than average. Based on deals found by KAYAK users in the last 12 months.

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

  • August is the cheapest month to fly from Houston to Knoxville at $273 round-trip.
  • March ($433) and May ($415) are the most expensive months.
  • The price difference between flying in the cheapest and most expensive months is 58% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are prices from Houston to Knoxville the cheapest?

Flights from Houston to Knoxville are cheapest 26 weeks before departure. Booking in this window typically costs about 59% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Expert advice

Expert advice for your flight from Houston to Knoxville

 
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on United Airlines

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Daniel Scheffler

Daniel Scheffler

Expert on Allegiant Air

Daniel Scheffler is a travel writer, podcaster, and producer. Born in Africa, bred in Europe and now living in America he has traveled to 140 countries (and all 50 U.S. states). Plus he has stayed at over 2500 hotels across the globe. His original shows Everywhere and Without Maps (available on Spotify) showcase his beliefs, travel is about humanity and sharing that beauty. And thus it reminds you that you shouldn’t believe everything you think.

Key details for Houston to Knoxville flights

Low season

February

Cheapest flight

$54
Best time to beat the crowds with an average 1% drop in price.
Most popular time to fly and prices are also 1% lower on average.
Flight from Houston Hobby Airport to Knoxville

When to book flights from Houston to Knoxville

Are your dates flexible? Find out the best times to travel from Houston to Knoxville based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Houston to Knoxville flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • Which airlines offer extra legroom and free seat selection on Houston to Knoxville flights?

    Among airlines operating Houston to Knoxville flights:

    • United Airlines: offers extra legroom; offers free seat selection

    Extra legroom and free seat selection availability depends on fare class and route.

  • What airlines are available from Houston to Knoxville?

    2 airlines operate flights between Houston and Knoxville. The airlines offering nonstop flights on this route include:

    • United Airlines
    • Allegiant Air

  • Which airports can I use when flying from Houston to Knoxville?

    Flights from Houston to Knoxville may depart from several airports in Houston area, including Houston Hobby (HOU) and Houston George Bush Intcntl (IAH). Flights usually arrive at Knoxville McGhee Tyson (TYS).

  • Which airlines include bags at no extra cost on Houston to Knoxville flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • United Airlines: a cabin bag and a checked bag in Economy Class
    • JetBlue: a cabin bag in Economy Class class

    Bag allowance can vary by ticket type, cabin class, route and airline, so travelers should check the fare details before booking.

  • What cabin classes can I book on flights from Houston to Knoxville?

    Two cabin classes are available on flights from Houston to Knoxville:

    • Economy Class
    • First Class

  • How much can I save by taking a layover when flying from Houston to Knoxville?

    On this route, layover flights are cheaper than nonstop options on average. Layover fares average $234 round-trip via Fort Lauderdale (FLL), compared to $332 for nonstop.

  • What is the standard checked-bag allowance on flights from Houston to Knoxville?

    There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $35–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

  • Which airports do connecting flights from Houston to Knoxville pass through?

    One-stop flights from Houston to Knoxville most commonly connect through:

    • Dallas/Fort Worth (DFW) - 47% of one-stop connections
    • Atlanta Hartsfield-Jackson (ATL) - 43% of one-stop connections
    • Dallas Love Field (DAL) - 3% of one-stop connections
    • Nashville Intl (BNA) - 2% of one-stop connections

    Dallas/Fort Worth (DFW) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from Houston to Knoxville?

    Yes. Being flexible with your travel dates can save you up to 33% on the Houston to Knoxville route. Friday is the cheapest departure day at $274 round-trip on average, while Tuesday is the most expensive at $404, a difference of $130. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How are flight departures from Houston to Knoxville spread across the day?

    Morning is the busiest departure period on Houston to Knoxville flights, with 34% of flights leaving in that window. Afternoon departures account for 33%, evening flights for 33%, and night flights for 0%.

  • What are the earliest and latest flights from Houston to Knoxville?

    These are the earliest and latest flight times available from Houston to Knoxville:

    • Earliest: departs at 8:00 am and lands at 10:16 am
    • Latest: departs at 8:35 pm and lands at 10:51 pm.

    The flight takes about 2h 16m.

  • How expensive are last-minute Houston to Knoxville flights?

    Last-minute fares on this route - booked within 2 weeks of departure - run 31% above the route average of $336. Book 26 weeks before departure for the lowest fares.

  • How long is a flight from Houston to Knoxville?

    A nonstop flight from Houston to Knoxville takes 2h 16m, covering 781 miles.

  • Do I need a passport to fly from Houston to Knoxville?

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

  • How are flight prices from Houston to Knoxville looking right now?

    One-way fares from Houston to Knoxville are currently lower than usual. Average one-way flight prices are about $146, which is 39% below the typical average for this route.

  • How much time can I save by choosing a different layover airport from Houston to Knoxville?

    Flying via Nashville Intl (BNA) gives the shortest average 1-stop total travel time at 4h 38m, compared with 4h 45m via Atlanta Hartsfield-Jackson (ATL) and 4h 46m via Dallas/Fort Worth (DFW).

  • What is the time difference between Houston and Knoxville?

    Knoxville is 1 hour ahead of Houston (Eastern Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

  • What car rental options are available at Knoxville McGhee Tyson Airport (TYS)?

    Knoxville McGhee Tyson Airport (TYS) hosts 5 major car rental companies, with daily rates starting from around $33 for economy cars. Top options include:
    • Budget
    • Alamo
    • Thrifty
    • Enterprise Rent-A-Car
    • Payless

  • How much should I expect to pay for a Houston to Knoxville flight?

    Round-trip flights from Houston to Knoxville range from $221 to $485, with an average of $336 over the past 12 months. Anything below $221 counts as a good deal.

  • Which airlines offer Wi-Fi on Houston to Knoxville flights?

    JetBlue is the only airline on the Houston to Knoxville route offering in-flight Wi-Fi. Pricing depends on fare class.

Your guide to booking Houston to Knoxville flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Friday departure instead of Tuesday. On this route, Friday flights average $274 - about $130 less than Tuesday (32% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 26 weeks before you fly. On this route, that window historically saves about 59% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Houston to Knoxville trip for August. Fares historically average $273 round-trip in that month - typically $160 less than the most expensive month, which is March (based on the last 12 months).
  • If you have the time, taking a 1-stop flight through Fort Lauderdale Airport (FLL) can be cheaper than flying direct. The cheapest layover option averages $234 round-trip on this route - about $98 less than direct flights (based on the last 12 months).

Prefer to fly direct from Houston to Knoxville?

 
Find which airlines fly direct from Houston to Knoxville McGhee Tyson Airport, which days they fly and book direct flights.

Direct departures

Houston to Knoxville McGhee Tyson

Monday

Allegiant Air,United Airlines

Allegiant Air,United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines,Allegiant Air

United Airlines,Allegiant Air

Thursday

United Airlines

United Airlines

Friday

Allegiant Air,United Airlines

Allegiant Air,United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines,Allegiant Air

United Airlines,Allegiant Air

See more direct flights

Direct returns

Knoxville McGhee Tyson to Houston

Monday

Allegiant Air,United Airlines

Allegiant Air,United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines,Allegiant Air

United Airlines,Allegiant Air

Thursday

United Airlines

United Airlines

Friday

Allegiant Air,United Airlines

Allegiant Air,United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines,Allegiant Air

United Airlines,Allegiant Air

See more direct flights

More options for your flight from Houston to Knoxville

Complete your trip to Knoxville with a hotel stay or car rental