$50+ Cheap flights from Knoxville (TYS) to Houston
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 8/14. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — HOU
Aug 18 — Aug 251
Round-trip
1 adult, Economy
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Find cheap flights from Knoxville to Houston 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 Knoxville McGhee Tyson to Houston are usually found in June or August, booked 70 days in advance, depart on a Sunday or Monday and return on a Sunday
Cheap flight deals from Knoxville to Houston
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Best
Last-minute
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Cheapest flights from Knoxville to HoustonExplore the most affordable flight options available from Knoxville to Houston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 19, 2026.
Explore the most affordable flight options available from Knoxville to Houston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 19, 2026.
This CheapOair deal was found by Cheapflights users on 7/17. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/175:54 pm
TYS
- HOU
Nonstop2h 19m
Allegiant Air
Mon 8/243:36 pm
HOU
- TYS
Nonstop2h 07m
Allegiant Air
Deal found 7/17![Allegiant Air logo]()
$70
This CheapOair deal was found by Cheapflights users on 7/18. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/145:54 pm
TYS
- HOU
Nonstop2h 19m
Allegiant Air
Mon 8/3112:10 pm
HOU
- TYS
Nonstop2h 07m
Allegiant Air
Deal found 7/18![Allegiant Air logo]()
$73
This Cheapflightsfares deal was found by Cheapflights users on 7/14. 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 8/145:54 pm
TYS
- HOU
Nonstop2h 19m
Allegiant Air
Mon 8/178:03 pm
HOU
- TYS
Nonstop2h 09m
Allegiant Air
Deal found 7/14![Allegiant Air logo]()
$81
This Cheapflightsfares deal was found by Cheapflights users on 7/14. 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 8/281:26 pm
TYS
- HOU
Nonstop2h 20m
Allegiant Air
Mon 8/3112:10 pm
HOU
- TYS
Nonstop2h 07m
Allegiant Air
Deal found 7/14![Allegiant Air logo]()
$84
This Cheapflightsfares deal was found by Cheapflights users on 7/17. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/75:54 pm
TYS
- HOU
Nonstop2h 19m
Allegiant Air
Mon 8/108:03 pm
HOU
- TYS
Nonstop2h 09m
Allegiant Air
Deal found 7/17![Allegiant Air logo]()
$90
This Cheapflightsfares deal was found by Cheapflights users on 7/15. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/912:54 pm
TYS
- HOU
Nonstop2h 17m
Allegiant Air
Mon 10/195:04 pm
HOU
- TYS
Nonstop2h 04m
Allegiant Air
Deal found 7/15![Allegiant Air logo]()
$96
This Cheapflightsfares deal was found by Cheapflights users on 7/15. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/44:22 pm
TYS
- HOU
Nonstop2h 20m
Allegiant Air
Mon 9/73:27 pm
HOU
- TYS
Nonstop2h 07m
Allegiant Air
Deal found 7/15![Allegiant Air logo]()
$102
This Cheapflightsfares deal was found by Cheapflights users on 7/15. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/166:28 pm
TYS
- HOU
Nonstop2h 17m
Allegiant Air
Mon 10/195:04 pm
HOU
- TYS
Nonstop2h 04m
Allegiant Air
Deal found 7/15![Allegiant Air logo]()
$117
This Kiwi.com deal was found by Cheapflights users on 7/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/277:00 am
TYS
- IAH
1 stop15h 19m
Multiple Airlines
Sat 8/298:35 am
IAH
- TYS
1 stop24h 29m
Multiple Airlines
Deal found 7/14![Multiple Airlines logo]()
$192
This Kiwi.com deal was found by Cheapflights users on 7/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/176:29 pm
TYS
- IAH
1 stop21h 03m
Multiple Airlines
Mon 8/248:57 am
IAH
- TYS
1 stop9h 08m
Multiple Airlines
Deal found 7/16![Multiple Airlines logo]()
$198
This Kiwi.com deal was found by Cheapflights users on 7/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/137:00 am
TYS
- IAH
1 stop15h 14m
Multiple Airlines
Sat 8/158:16 am
IAH
- TYS
1 stop6h 57m
Multiple Airlines
Deal found 7/14![Multiple Airlines logo]()
$201
This Kiwi.com deal was found by Cheapflights users on 7/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/137:00 am
TYS
- IAH
1 stop15h 14m
Multiple Airlines
Thu 8/203:25 pm
IAH
- TYS
1 stop26h 40m
Multiple Airlines
Deal found 7/16![Multiple Airlines logo]()
$204
Best flights from Knoxville to HoustonDiscover carefully curated flight deals from Knoxville to Houston that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 19, 2026.
Discover carefully curated flight deals from Knoxville to Houston that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 19, 2026.
This Southwest deal was found by Cheapflights users on 7/18. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/154:55 pm
TYS
- HOU
1 stop3h 55m
Southwest
Sat 8/229:45 am
HOU
- TYS
1 stop6h 55m
Southwest
Deal found 7/18![Southwest logo]()
$199
This Delta deal was found by Cheapflights users on 7/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/66:00 am
TYS
- HOU
1 stop4h 50m
Delta
Wed 9/166:00 am
HOU
- TYS
1 stop4h 18m
Delta
Deal found 7/15![Delta logo]()
$289
This United Airlines deal was found by Cheapflights users on 7/18. 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 8/67:15 am
TYS
- IAH
Nonstop2h 25m
United Airlines
Tue 8/1110:00 am
IAH
- TYS
Nonstop2h 20m
United Airlines
Deal found 7/18![United Airlines logo]()
$289
This Southwest deal was found by Cheapflights users on 7/17. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/171:00 pm
TYS
- HOU
1 stop6h 15m
Southwest
Mon 8/2410:40 am
HOU
- TYS
2 stops6h 55m
Southwest
Deal found 7/17![Southwest logo]()
$204
This Southwest deal was found by Cheapflights users on 7/18. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/147:10 am
TYS
- HOU
2 stops8h 55m
Southwest
Mon 8/311:20 pm
HOU
- TYS
1 stop4h 15m
Southwest
Deal found 7/18![Southwest logo]()
$204
This Delta deal was found by Cheapflights users on 7/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/97:25 pm
TYS
- HOU
1 stop4h 44m
Delta
Mon 10/195:28 pm
HOU
- TYS
1 stop5h 31m
Delta
Deal found 7/17![Delta logo]()
$289
This Delta deal was found by Cheapflights users on 7/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/612:06 pm
TYS
- HOU
1 stop5h 27m
Delta
Tue 10/136:00 am
HOU
- TYS
1 stop6h 40m
Delta
Deal found 7/15![Delta logo]()
$289
This Southwest deal was found by Cheapflights users on 7/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/53:35 pm
TYS
- HOU
1 stop4h 10m
Southwest
Mon 9/77:55 am
HOU
- TYS
1 stop3h 25m
Southwest
Deal found 7/15![Southwest logo]()
$267
This United Airlines deal was found by Cheapflights users on 7/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/142:21 pm
TYS
- IAH
Nonstop2h 29m
United Airlines
Mon 8/172:57 pm
IAH
- TYS
Nonstop2h 20m
United Airlines
Deal found 7/16![United Airlines logo]()
$349
This Delta deal was found by Cheapflights users on 7/16. 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.
Sat 9/55:00 pm
TYS
- HOU
1 stop5h 23m
Delta
Wed 9/166:00 am
HOU
- TYS
1 stop4h 18m
Delta
Deal found 7/16![Delta logo]()
$289
This United Airlines deal was found by Cheapflights users on 7/15. 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 8/272:21 pm
TYS
- IAH
Nonstop2h 29m
United Airlines
Sat 8/296:25 pm
IAH
- TYS
Nonstop2h 20m
United Airlines
Deal found 7/15![United Airlines logo]()
$349
This Southwest deal was found by Cheapflights users on 7/18. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/174:10 pm
TYS
- HOU
1 stop6h 35m
Southwest
Wed 11/188:10 am
HOU
- TYS
1 stop7h 30m
Southwest
Deal found 7/18![Southwest logo]()
$289
This Delta deal was found by Cheapflights users on 7/18. 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.
Sat 8/85:00 pm
TYS
- HOU
1 stop5h 23m
Delta
Mon 8/106:00 am
HOU
- TYS
1 stop6h 34m
Delta
Deal found 7/18![Delta logo]()
$289
This United Airlines deal was found by Cheapflights users on 7/17. 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.
Thu 12/37:00 am
TYS
- IAH
Nonstop2h 24m
United Airlines
Tue 12/84:20 pm
IAH
- TYS
Nonstop2h 14m
United Airlines
Deal found 7/17![United Airlines logo]()
$349
This Delta deal was found by Cheapflights users on 7/16. 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 10/65:45 am
TYS
- IAH
1 stop3h 52m
Delta
Tue 10/135:40 am
IAH
- TYS
1 stop7h 00m
Delta
Deal found 7/16![Delta logo]()
$289
This United Airlines deal was found by Cheapflights users on 7/18. 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.
Fri 8/77:15 am
TYS
- IAH
Nonstop2h 25m
United Airlines
Mon 8/107:50 pm
IAH
- TYS
Nonstop2h 22m
United Airlines
Deal found 7/18![United Airlines logo]()
$369
This Delta deal was found by Cheapflights users on 7/18. 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.
Sat 8/86:00 am
TYS
- IAH
1 stop4h 15m
Delta
Mon 8/106:36 pm
IAH
- TYS
1 stop4h 16m
Delta
Deal found 7/18![Delta logo]()
$314
This United Airlines deal was found by Cheapflights users on 7/17. 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.
Fri 10/93:45 pm
TYS
- IAH
Nonstop2h 25m
United Airlines
Tue 10/206:35 pm
IAH
- TYS
Nonstop2h 20m
United Airlines
Deal found 7/17![United Airlines logo]()
$379
This United Airlines deal was found by Cheapflights users on 7/17. 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.
Thu 11/127:00 am
TYS
- IAH
Nonstop2h 40m
United Airlines
Sun 11/156:25 pm
IAH
- TYS
Nonstop2h 17m
United Airlines
Deal found 7/17![United Airlines logo]()
$404
This United Airlines deal was found by Cheapflights users on 7/15. 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.
Fri 10/97:15 am
TYS
- IAH
Nonstop2h 29m
United Airlines
Mon 10/196:35 pm
IAH
- TYS
Nonstop2h 20m
United Airlines
Deal found 7/15![United Airlines logo]()
$404
This United Airlines deal was found by Cheapflights users on 7/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/87:15 am
TYS
- IAH
Nonstop2h 29m
United Airlines
Sun 10/116:15 am
IAH
- TYS
1 stop5h 59m
United Airlines
Deal found 7/14![United Airlines logo]()
$406
This United Airlines deal was found by Cheapflights users on 7/18. 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 8/87:15 am
TYS
- IAH
Nonstop2h 25m
United Airlines
Mon 8/105:00 am
IAH
- TYS
1 stop11h 00m
United Airlines
Deal found 7/18![United Airlines logo]()
$455
Last-minute flights from Knoxville to HoustonDiscover last-minute flight deals from Knoxville to Houston. Data last updated July 19, 2026 and is based on user searches.
Discover last-minute flight deals from Knoxville to Houston. Data last updated July 19, 2026 and is based on user searches.
This CheapOair deal was found by Cheapflights users on 7/18. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/275:32 pm
TYS
- HOU
Nonstop2h 17m
Allegiant Air
Fri 7/317:39 pm
HOU
- TYS
Nonstop2h 09m
Allegiant Air
Deal found 7/18![Allegiant Air logo]()
$206
This Cheapflightsfares deal was found by Cheapflights users on 7/15. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/35:32 pm
TYS
- HOU
Nonstop2h 17m
Allegiant Air
Mon 8/178:03 pm
HOU
- TYS
Nonstop2h 09m
Allegiant Air
Deal found 7/15![Allegiant Air logo]()
$118
This Cheapflightsfares deal was found by Cheapflights users on 7/17. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/75:54 pm
TYS
- HOU
Nonstop2h 19m
Allegiant Air
Mon 8/108:03 pm
HOU
- TYS
Nonstop2h 09m
Allegiant Air
Deal found 7/17![Allegiant Air logo]()
$90
This Southwest deal was found by Cheapflights users on 7/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/132:05 pm
TYS
- HOU
1 stop5h 05m
Southwest
Sat 8/156:00 am
HOU
- TYS
1 stop6h 15m
Southwest
Deal found 7/14![Southwest logo]()
$199
This Kiwi.com deal was found by Cheapflights users on 7/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/137:00 am
TYS
- IAH
1 stop15h 14m
Multiple Airlines
Sat 8/158:16 am
IAH
- TYS
1 stop6h 57m
Multiple Airlines
Deal found 7/14![Multiple Airlines logo]()
$201
This Kiwi.com deal was found by Cheapflights users on 7/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/137:00 am
TYS
- IAH
1 stop15h 14m
Multiple Airlines
Thu 8/203:25 pm
IAH
- TYS
1 stop26h 40m
Multiple Airlines
Deal found 7/16![Multiple Airlines logo]()
$204
This CheapOair deal was found by Cheapflights users on 7/18. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/145:54 pm
TYS
- HOU
Nonstop2h 19m
Allegiant Air
Mon 8/3112:10 pm
HOU
- TYS
Nonstop2h 07m
Allegiant Air
Deal found 7/18![Allegiant Air logo]()
$73
This Cheapflightsfares deal was found by Cheapflights users on 7/14. 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 8/145:54 pm
TYS
- HOU
Nonstop2h 19m
Allegiant Air
Mon 8/178:03 pm
HOU
- TYS
Nonstop2h 09m
Allegiant Air
Deal found 7/14![Allegiant Air logo]()
$81
This CheapOair deal was found by Cheapflights users on 7/17. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/175:54 pm
TYS
- HOU
Nonstop2h 19m
Allegiant Air
Mon 8/243:36 pm
HOU
- TYS
Nonstop2h 07m
Allegiant Air
Deal found 7/17![Allegiant Air logo]()
$70
This Kiwi.com deal was found by Cheapflights users on 7/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/176:29 pm
TYS
- IAH
1 stop21h 03m
Multiple Airlines
Mon 8/248:57 am
IAH
- TYS
1 stop9h 08m
Multiple Airlines
Deal found 7/16![Multiple Airlines logo]()
$198
This Kiwi.com deal was found by Cheapflights users on 7/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/277:00 am
TYS
- IAH
1 stop15h 19m
Multiple Airlines
Sat 8/298:35 am
IAH
- TYS
1 stop24h 29m
Multiple Airlines
Deal found 7/14![Multiple Airlines logo]()
$192
This Cheapflightsfares deal was found by Cheapflights users on 7/14. 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 8/281:26 pm
TYS
- HOU
Nonstop2h 20m
Allegiant Air
Mon 8/3112:10 pm
HOU
- TYS
Nonstop2h 07m
Allegiant Air
Deal found 7/14![Allegiant Air logo]()
$84
One-way flights from Knoxville to HoustonSearch for one-way flight options from Knoxville to Houston. Find affordable one-way fares based on user searches. Data last updated July 19, 2026.
Search for one-way flight options from Knoxville to Houston. Find affordable one-way fares based on user searches. Data last updated July 19, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 7/15. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/145:54 pm
TYS
- HOU
Nonstop2h 19m
Allegiant Air
Deal found 7/15![Allegiant Air logo]()
$50
This CheapOair deal was found by Cheapflights users on 7/18. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/55:12 pm
TYS
- HOU
Nonstop2h 17m
Allegiant Air
Deal found 7/18![Allegiant Air logo]()
$62
This CheapOair deal was found by Cheapflights users on 7/14. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/21:44 pm
TYS
- HOU
Nonstop2h 17m
Allegiant Air
Deal found 7/14![Allegiant Air logo]()
$64
This Cheapflightsfares deal was found by Cheapflights users on 7/18. 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.
Mon 9/71:17 pm
TYS
- HOU
Nonstop2h 20m
Allegiant Air
Deal found 7/18![Allegiant Air logo]()
$87
This Cheapflightsfares deal was found by Cheapflights users on 7/17. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/192:50 pm
TYS
- HOU
Nonstop2h 26m
Allegiant Air
Deal found 7/17![Allegiant Air logo]()
$95
This Southwest deal was found by Cheapflights users on 7/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/135:45 pm
TYS
- HOU
1 stop5h 55m
Southwest
Deal found 7/14![Southwest logo]()
$100
This Kiwi.com deal was found by Cheapflights users on 7/15. 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.
Sun 8/307:00 am
TYS
- IAH
1 stop28h 34m
Multiple Airlines
Deal found 7/15![Multiple Airlines logo]()
$101
This Cheapflightsfares deal was found by Cheapflights users on 7/16. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/315:32 pm
TYS
- HOU
Nonstop2h 17m
Allegiant Air
Deal found 7/16![Allegiant Air logo]()
$103
This Kiwi.com deal was found by Cheapflights users on 7/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/137:00 am
TYS
- IAH
1 stop15h 14m
Multiple Airlines
Deal found 7/14![Multiple Airlines logo]()
$105
This Super.com deal was found by Cheapflights users on 7/17. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/35:32 pm
TYS
- HOU
Nonstop2h 17m
Allegiant Air
Deal found 7/17![Allegiant Air logo]()
$106
This Kiwi.com deal was found by Cheapflights users on 7/15. 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 9/214:18 pm
TYS
- IAH
1 stop24h 26m
Multiple Airlines
Deal found 7/15![Multiple Airlines logo]()
$110
This Kiwi.com deal was found by Cheapflights users on 7/15. 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 8/1412:50 pm
TYS
- IAH
2 stops23h 37m
Multiple Airlines
Deal found 7/15![Multiple Airlines logo]()
$119
Find flight deals from Knoxville to Houston
Discover tips and strategies to find the most affordable flight options for your journey from Knoxville (TYS) to Houston (HO1). 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 19, 2026.
Round-trip from | $70 (CheapOair) |
|---|---|
One-way from | $50 (Cheapflightsfares) |
Popular in | March |
Cheapest in | June |
Average price | $279 |
Cheapflights Fare Finder
Customize your flight search to find flights from Knoxville to Houston 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 19, 2026.
Use the filters below to find and compare flights from Knoxville to Houston that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
KnoxvilleHouston
TYS - HOU
TYSHOU
Knoxville McGhee Tyson
Sat 8/15
4:55 pm-7:50 pm
1 stop3h 55m
Houston Hobby
Sat 8/22
9:45 am-5:40 pm
1 stop6h 55m
$199
KnoxvilleHouston
TYS - HOU
TYSHOU
Knoxville McGhee Tyson
Mon 8/17
1:00 pm-6:15 pm
1 stop6h 15m
Houston Hobby
Mon 8/24
10:40 am-6:35 pm
2 stops6h 55m
$204
KnoxvilleHouston
TYS - HOU
TYSHOU
Knoxville McGhee Tyson
Fri 8/14
7:10 am-3:05 pm
2 stops8h 55m
Houston Hobby
Mon 8/31
1:20 pm-6:35 pm
1 stop4h 15m
$204
KnoxvilleHouston
TYS - HOU
TYSHOU
Knoxville McGhee Tyson
Sat 9/5
3:35 pm-6:45 pm
1 stop4h 10m
Houston Hobby
Mon 9/7
7:55 am-12:20 pm
1 stop3h 25m
$267
KnoxvilleHouston
TYS - HOU
TYSHOU
Knoxville McGhee Tyson
Sun 9/6
6:00 am-9:50 am
1 stop4h 50m
Houston Hobby
Wed 9/16
6:00 am-11:18 am
1 stop4h 18m
$289
KnoxvilleHouston
TYS - IAH
TYSIAH
Knoxville McGhee Tyson
Thu 8/6
7:15 am-8:40 am
Nonstop2h 25m
Houston George Bush Intcntl
Tue 8/11
10:00 am-1:20 pm
Nonstop2h 20m
$289
KnoxvilleHouston
TYS - HOU
TYSHOU
Knoxville McGhee Tyson
Fri 10/9
7:25 pm-11:09 pm
1 stop4h 44m
Houston Hobby
Mon 10/19
5:28 pm-11:59 pm
1 stop5h 31m
$289
KnoxvilleHouston
TYS - HOU
TYSHOU
Knoxville McGhee Tyson
Tue 10/6
12:06 pm-4:33 pm
1 stop5h 27m
Houston Hobby
Tue 10/13
6:00 am-1:40 pm
1 stop6h 40m
$289
KnoxvilleHouston
TYS - HOU
TYSHOU
Knoxville McGhee Tyson
Sat 9/5
5:00 pm-9:23 pm
1 stop5h 23m
Houston Hobby
Wed 9/16
6:00 am-11:18 am
1 stop4h 18m
$289
KnoxvilleHouston
TYS - HOU
TYSHOU
Knoxville McGhee Tyson
Tue 11/17
4:10 pm-9:45 pm
1 stop6h 35m
Houston Hobby
Wed 11/18
8:10 am-4:40 pm
1 stop7h 30m
$289
Showing 1-10 of 43 resultsSorted by cheapest first
Best time to book a flight from Knoxville to Houston
Have a flexible travel schedule? Discover the best time to fly to Houston from Knoxville with our price prediction graph.
TYS-HO1
TYS-HOU
TYS-IAH
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 Knoxville to Houston
TYS-HO1
TYS-HOU
TYS-IAH
What is the cheapest month to book a flight from Knoxville to Houston?
Currently, June is the cheapest month in which you can book a flight from Knoxville to Houston (average of $212). Flying from Knoxville to Houston in March is currently the most expensive (average of $408). 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 TYS to HOU?
Find hourly flight availability from Knoxville to Houston. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 19, 2026.
When flying from Knoxville to Houston, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
How much does it cost to fly round-trip from Knoxville to Houston?
How far ahead should I book a flight from Knoxville to Houston?
The best time to book flights from Knoxville to Houston is 80 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Reviews of airlines servicing Houston
Get insights into the airlines that provide service to Houston. 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 Houston. Reviews last updated July 19, 2026.
See what other customers who have flown with Southwest,Delta, andUnited Airlines from Knoxville to Houston have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.5
Boarding
8.1
Food
7.0
Crew
8.6
Overall
8.0
Comfort
8.0
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
Entertainment
7.5
Boarding
8.1
Food
7.0
Crew
8.6
Overall
8.0
Comfort
8.0
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
Entertainment
7.5
Boarding
8.1
Food
7.0
Crew
8.6
Overall
8.0
Comfort
8.0
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
Entertainment
7.5
Boarding
8.1
Food
7.0
Crew
8.6
Overall
8.0
Comfort
8.0
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
Entertainment
7.5
Boarding
8.1
Food
7.0
Crew
8.6
Overall
8.0
Comfort
8.0
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
Entertainment
7.5
Boarding
8.1
Food
7.0
Crew
8.6
Overall
8.0
Comfort
8.0
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
Related info for your journey
Find useful and relevant information for your journey from Knoxville to Houston. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Knoxville to Houston
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Complete your trip
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Search flights from Knoxville to Houston by cabin class
Find flights from Knoxville to Houston, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Knoxville and Houston flights
Browse other Knoxville and Houston flight options. Last updated on July 19, 2026.
Other flights from Knoxville
Browse through other flights departing from Knoxville. Flights are based on user searches made on Cheapflights and were last updated on July 19, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 5 airlines flying from Knoxville to Houston
Discover the top 5 airlines that operate flights from Knoxville to Houston. 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 19, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$79 | Average$128 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$209 | Average$357 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$228 | Average$307 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$228 | Average$296 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$260 | Average$398 | FlexibilityNo cancel fee | On-time63% |