Cheap Flights from Knoxville to Houston
Browse current best options from Knoxville. Become a member to unlock all deals and get alerts when new deals appear.
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Prices updated 5 days ago
402 airlines compared
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Fares are subject to change and may not be available for all dates. (Data last updated Jul 12, 2026.)
Today’s best flight deals from Knoxville to Houston
Explore current cheapest deals departing from Knoxville to Houston
Round trip
Sort by: Cheapest
August 7 - August 17
TYS - Houston
$192
$69
Round trip
August 14 - August 17
TYS - Houston
$223
$69
Round trip
August 24 - August 31
TYS - Houston
$205
$69
Round trip
August 7 - August 24
TYS - Houston
$179
$76
Round trip
August 14 - August 24
TYS - Houston
$191
$82
Round trip
August 14 - August 21
TYS - Houston
$210
$82
Round trip
August 14 - August 31
TYS - Houston
$178
$82
Round trip
August 17 - August 24
TYS - Houston
$206
$82
Round trip
August 17 - August 21
TYS - Houston
$219
$82
Round trip
August 17 - August 31
TYS - Houston
$182
$82
Round trip
Unlock all 500+ flight deals to Houston and get alerts when great deals appear
Knoxville to Houston: Overview
Insights for flights from Knoxville to Houston
How much is a round trip from Knoxville to Houston
Regular price: $158 - $410
Prices for flights from Knoxville to Houston are currently below the regular range.
The regular price range for flights from Knoxville to Houston is between $158 and $410. The current lowest deal is $68 with Allegiant Air, for travel from Aug 24-Aug 31.
now $68
Low $158
High $410
The cheapest time to fly from Knoxville to Houston
The cheapest month to fly from TYS to HOU is August, with a median price of $93. The most expensive month is April, with a median price of $1022. Generally, prices are lower from January to December.
August
Flights from $93
April
Flights from $1,022
Direct flights from Knoxville to Houston
Allegiant Air
Last-minute flights going from Knoxville to Houston
Thu, Jul 23
TYS - Houston
Knoxville (TYS) - Houston (IAH)
Allegiant Air
$340
$220
One-way
Fri, Jul 24
TYS - Houston
Knoxville (TYS) - Houston (HOU)
Allegiant Air
$230
$111
One-way
Mon, Aug 3
TYS - Houston
Knoxville (TYS) - Houston (HOU)
Allegiant Air
$178
$115
One-way
Mon, Aug 3
TYS - Houston
Knoxville (TYS) - Houston (HOU)
Allegiant Air
$192
$115
One-way
Mon, Aug 3
TYS - Houston
Knoxville (TYS) - Houston (HOU)
Allegiant Air
$180
$115
One-way
Mon, Aug 3
TYS - Houston
Knoxville (TYS) - Houston (HOU)
Allegiant Air
$188
$115
One-way
Biggest price drops on these dates for flights from Knoxville to Houston
Aug 14 - Aug 16
$387 → $172
56%
Aug 24 - Aug 26
$389 → $179
54%
Aug 15 - Aug 22
$360 → $198
45%
Aug 18 - Aug 25
$360 → $198
45%
Popular Airports to fly from Knoxville to Houston
Knoxville - Houston route insights
💸 Price insights
Recent fares are above the typical level
Recent fares from Knoxville to Houston are above the typical level for this route.
📅 Best time to fly
Fly in November for the best prices
Historically, November, September, and August offer the lowest median prices for this route.
⏱️ Flight duration
Direct flights take 2h 17m
The typical direct flight from Knoxville to Houston takes 2h 17m.
✈️ Airlines & availability
51% of recent flights are direct
Historically, about half of flights on this route are direct, with frequent deals available.
🏆 Airline highlight
Allegiant Air offers direct flights
Allegiant Air has historically offered direct flights from Knoxville to Houston.
🎯 Booking tip
Good prices are available 31% of the time
Historically, a good price for Knoxville to Houston is $89 or less.
Knoxville main airports to depart from
McGhee Tyson (TYS)
McGhee Tyson Airport (TYS) is a convenient option for flights from Knoxville to Houston.
📍 ~18 km from Knoxville city center (reachable by car)
💸 Flights from ~$68
Houston main airports to arrive at
William P. Hobby (HOU)
William P. Hobby Airport is a convenient choice for flights from Knoxville to Houston.
📍 ~16 km from city center (reachable by car)
💸 Flights from ~$68
George Bush Intercontinental (IAH)
George Bush Intercontinental Airport offers another arrival option for your trip to Houston from Knoxville.
📍 ~25 km from city center (reachable by car)
💸 Flights from ~$185
Airports nearby Houston used as alternative
Austin–Bergstrom International (AUS)
Austin–Bergstrom International offers extensive domestic and international routes with high flight frequency.
📍 ~225 km from Houston (reachable by car)
💸 Flights from ~$62
San Antonio International (SAT)
San Antonio International is a reliable alternative with a wide variety of carriers and destinations.
📍 ~300 km from Houston (reachable by car)
💸 Flights from ~$239
Dallas/Fort Worth International (DFW)
Dallas/Fort Worth International is a global hub providing unmatched flight connectivity and reliability.
📍 ~385 km from Houston (reachable by car)
💸 Flights from ~$178
Easterwood (CLL)
Easterwood is very close to Houston and offers fast check-in and security processing.
📍 ~140 km from Houston (reachable by car)
💸 Flights from ~$458
Jack Brooks Regional (BPT)
Jack Brooks Regional is the closest alternative airport, offering easy parking and minimal congestion.
📍 ~135 km from Houston (reachable by car)
💸 Flights from ~$488
Business & First Class Flight Deals to Houston
Discover luxury on the budget with premium cabin class on flights from Knoxville to Houston.
Elite
Best Elite deals to Houston
Exclusive daily First Class, Business Class, and Premium Economy flight deals, refreshed every 24 hours.
From TYS
Elite
Aug 08
Houston, United States
81% AI deal score
$903
$499
Save $404
From TYS
Elite
Aug 19
Houston, United States
80% AI deal score
$872
$499
Save $373
From TYS
Elite
Aug 22
Houston, United States
79% AI deal score
$771
$496
Save $275
From TYS
Elite
Aug 08
Houston, United States
79% AI deal score
$795
$499
Save $296
From TYS
Elite
Jul 23
Houston, United States
79% AI deal score
$827
$519
Save $308
From TYS
Elite
Aug 29
Houston, United States
78% AI deal score
$745
$496
Save $249
From TYS
Elite
Aug 11
Houston, United States
78% AI deal score
$776
$499
Save $277
From TYS
Elite
Aug 19
Houston, United States
78% AI deal score
$771
$499
Save $272
From TYS
Elite
Aug 12
Houston, United States
78% AI deal score
$776
$499
Save $277
From TYS
Elite
Nov 07
Houston, United States
78% AI deal score
$754
$499
Save $255
From TYS
Elite
Jul 24
Houston, United States
78% AI deal score
$833
$536
Save $297
From TYS
Elite
Jul 16
Houston, United States
78% AI deal score
$845
$554
Save $291
From TYS
Elite
Oct 20
Houston, United States
77% AI deal score
$744
$499
Save $245
From TYS
Elite
Jul 30
Houston, United States
77% AI deal score
$690
$499
Save $191
From TYS
Elite
Jul 18
Houston, United States
77% AI deal score
$782
$539
Save $243
From TYS
Elite
Sep 12
Houston, United States
76% AI deal score
$705
$499
Save $206
From TYS
Elite
Sep 04
Houston, United States
76% AI deal score
$772
$536
Save $236
From TYS
Elite
Jul 31
Houston, United States
75% AI deal score
$690
$539
Save $151
From TYS
Elite
Dec 24
Houston, United States
75% AI deal score
$740
$554
Save $186
From TYS
Elite
Sep 03
Houston, United States
74% AI deal score
$714
$539
Save $175
From TYS
Elite
Sep 29
Houston, United States
69% AI deal score
$700
$554
Save $146
From TYS
Elite
Dec 17
Houston, United States
69% AI deal score
$740
$594
Save $146
From TYS
Elite
Oct 16
Houston, United States
49% AI deal score
$743
$708
Save $35
From TYS
Elite
Oct 22
Houston, United States
49% AI deal score
$826
$802
Save $24
From TYS
Elite
Sep 01
Houston, United States
45% AI deal score
$2,595
From TYS
Elite
Sep 15
Houston, United States
45% AI deal score
$2,595
From TYS
Elite
Sep 22
Houston, United States
45% AI deal score
$2,614
From TYS
Elite
Sep 01
Houston, United States
45% AI deal score
$2,614
From TYS
Elite
Sep 15
Houston, United States
45% AI deal score
$2,614
From TYS
Elite
Sep 22
Houston, United States
45% AI deal score
$2,660
From TYS
Elite
Sep 01
Houston, United States
45% AI deal score
$2,660
From TYS
Elite
Sep 22
Houston, United States
45% AI deal score
$2,660
From TYS
Elite
Sep 15
Houston, United States
45% AI deal score
$2,705
From TYS
Elite
Aug 18
Houston, United States
45% AI deal score
$2,756
From TYS
Elite
Aug 18
Houston, United States
45% AI deal score
$2,789
From TYS
Elite
Aug 05
Houston, United States
45% AI deal score
$2,827
From TYS
Elite
Sep 22
Houston, United States
44% AI deal score
$2,660
From TYS
Elite
Sep 22
Houston, United States
44% AI deal score
$2,705
From TYS
Elite
Sep 22
Houston, United States
44% AI deal score
$2,747
From TYS
Elite
Sep 30
Houston, United States
44% AI deal score
$2,749
From TYS
Elite
Sep 15
Houston, United States
44% AI deal score
$2,751
From TYS
Elite
Sep 22
Houston, United States
44% AI deal score
$2,776
From TYS
Elite
Sep 01
Houston, United States
44% AI deal score
$2,793
From TYS
Elite
Sep 30
Houston, United States
44% AI deal score
$2,820
From TYS
Elite
Jul 21
Houston, United States
44% AI deal score
$2,855
From TYS
Elite
Aug 18
Houston, United States
44% AI deal score
$2,869
From TYS
Elite
Sep 17
Houston, United States
44% AI deal score
$2,882
From TYS
Elite
Aug 18
Houston, United States
44% AI deal score
$2,897
From TYS
Elite
Aug 05
Houston, United States
44% AI deal score
$2,904
From TYS
Elite
Jul 21
Houston, United States
44% AI deal score
$2,932
From TYS
Elite
Aug 18
Houston, United States
44% AI deal score
$2,933
From TYS
Elite
Aug 05
Houston, United States
44% AI deal score
$2,938
From TYS
Elite
Aug 05
Houston, United States
44% AI deal score
$2,940
From TYS
Elite
Aug 05
Houston, United States
44% AI deal score
$2,963
From TYS
Elite
Jul 21
Houston, United States
44% AI deal score
$2,966
From TYS
Elite
Jul 21
Houston, United States
44% AI deal score
$2,991
From TYS
Elite
Aug 17
Houston, United States
44% AI deal score
$3,104
From TYS
Elite
Aug 27
Houston, United States
44% AI deal score
$3,104
From TYS
Elite
Jul 21
Houston, United States
44% AI deal score
$3,113
From TYS
Elite
Jul 21
Houston, United States
44% AI deal score
$3,211
From TYS
Elite
Jul 24
Houston, United States
43% AI deal score
$3,398
From TYS
Elite
Jul 30
Houston, United States
43% AI deal score
$3,451
From TYS
Elite
Jul 24
Houston, United States
43% AI deal score
$3,496
From TYS
Elite
Jul 30
Houston, United States
43% AI deal score
$3,549
From TYS
Elite
Aug 06
Houston, United States
43% AI deal score
$3,575
From TYS
Elite
Aug 18
Houston, United States
40% AI deal score
$5,936
From TYS
Elite
Aug 20
Houston, United States
40% AI deal score
$6,119
From TYS
Elite
Aug 18
Houston, United States
40% AI deal score
$6,288
From TYS
Elite
Aug 20
Houston, United States
39% AI deal score
$6,470
From TYS
Elite
Aug 03
Houston, United States
38% AI deal score
$6,907
From TYS
Elite
Aug 03
Houston, United States
38% AI deal score
$7,152
From TYS
Elite
Oct 28
Houston, United States
38% AI deal score
$7,390
From TYS
Elite
Oct 25
Houston, United States
38% AI deal score
$7,453
From TYS
Elite
Sep 05
Houston, United States
38% AI deal score
$7,475
From TYS
Elite
Sep 01
Houston, United States
38% AI deal score
$7,508
From TYS
Elite
Oct 11
Houston, United States
38% AI deal score
$7,527
From TYS
Elite
Oct 14
Houston, United States
38% AI deal score
$7,531
From TYS
Elite
Sep 07
Houston, United States
38% AI deal score
$7,610
From TYS
Elite
Sep 15
Houston, United States
38% AI deal score
$7,748
From TYS
Elite
Sep 20
Houston, United States
38% AI deal score
$7,771