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George Bush Intcntl

$72+ Cheap flights from Louisville (SDF) to George Bush Intcntl (IAH)

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 9/13. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — IAH
Aug 20 — Aug 271
Wed 8/20
Wed 8/27
1 adult, Economy
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Cheapflights Tip: The best prices from Louisville Intl to Houston George Bush Intcntl are usually found in September or October, booked 66 days in advance, depart on a Thursday or Friday and return on a Saturday

Cheap flight deals from Louisville to George Bush Intcntl

Discover tips and strategies to find the most affordable flight options for your journey from Louisville (SDF) to George Bush Intcntl (IAH). 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 August 15, 2025.

Round-trip from

$183
(Cheapflightsfares)

One-way from

$72
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$389

Good round-trip deal

$413 or less

Good one-way deal

$219 or less
From Louisville Intl to Houston George Bush Intcntl
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One-way flight from Louisville Intl to Houston George Bush Intcntl
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Highest demand for flights based on searches. 6% potential increase in price ($27 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from Louisville Intl to Houston George Bush Intcntl.
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Price to beat on a one-way flight from Louisville Intl to Houston George Bush Intcntl.
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Find flight deals from Louisville to George Bush Intcntl

Cheapest flights from Louisville to George Bush Intcntl
Explore the most affordable flight options available from Louisville to George Bush Intcntl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 15, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 8/14. 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.
Sat 9/138:23 amSDF - IAH
1 stop10h 49mSpirit Airlines
Sun 9/147:10 amIAH - SDF
1 stop9h 29mSpirit Airlines
Deal found 8/14$183
This Kiwi.com deal was found by Cheapflights users on 8/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/128:23 amSDF - IAH
1 stop10h 49mSpirit Airlines
Wed 9/1710:02 pmIAH - SDF
1 stop18h 37mSpirit Airlines
Deal found 8/13$191
This Kiwi.com deal was found by Cheapflights users on 8/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/88:23 amSDF - IAH
1 stop10h 49mSpirit Airlines
Thu 9/1112:47 pmIAH - SDF
1 stop8h 17mSpirit Airlines
Deal found 8/13$198
This Kiwi.com deal was found by Cheapflights users on 8/14. 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.
Sat 10/116:58 pmSDF - IAH
1 stop6h 26mSpirit Airlines
Sat 10/1811:55 amIAH - SDF
1 stop9h 52mSpirit Airlines
Deal found 8/14$202
This FlightHub deal was found by Cheapflights users on 8/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/46:34 pmSDF - IAH
1 stop10h 56mSpirit Airlines
Thu 9/1112:47 pmIAH - SDF
1 stop8h 17mSpirit Airlines
Deal found 8/14$203
This Cheapflightsfares deal was found by Cheapflights users on 8/14. 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.
Sat 11/16:58 pmSDF - IAH
1 stop6h 26mSpirit Airlines
Mon 11/35:34 amIAH - SDF
1 stop11h 29mSpirit Airlines
Deal found 8/14$204
This Cheapflightsfares deal was found by Cheapflights users on 8/14. 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 10/168:11 pmSDF - IAH
1 stop10h 09mSpirit Airlines
Sun 10/1910:10 pmIAH - SDF
1 stop14h 52mSpirit Airlines
Deal found 8/14$205
This Kiwi.com deal was found by Cheapflights users on 8/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/282:46 pmSDF - IAH
1 stop5h 57mSpirit Airlines
Thu 9/412:47 pmIAH - SDF
1 stop8h 17mSpirit Airlines
Deal found 8/13$206
This FlightHub deal was found by Cheapflights users on 8/13. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/307:49 amSDF - IAH
1 stop5h 22mSpirit Airlines
Sat 11/85:45 amIAH - SDF
1 stop27h 14mSpirit Airlines
Deal found 8/13$208
This Kiwi.com deal was found by Cheapflights users on 8/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/282:46 pmSDF - IAH
1 stop5h 57mSpirit Airlines
Sun 8/316:25 amIAH - SDF
1 stop12h 53mSpirit Airlines
Deal found 8/13$210
This United Airlines deal was found by Cheapflights users on 8/14. 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.
Wed 11/57:10 amSDF - IAH
Nonstop2h 40mUnited Airlines
Sat 11/87:20 amIAH - SDF
1 stop4h 57mUnited Airlines
Deal found 8/14$213

Cheapflights Fare Finder

 
Customize your flight search to find flights from Louisville to George Bush Intcntl 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 August 15, 2025.
Use the filters below to find and compare flights from Louisville to Houston George Bush Intcntl Airport that are best for you.

Fly from

Louisville

Fly to

George Bush Intcntl

Route

Depart

Return

Price

LouisvilleHouston

SDF - IAH

SDFIAH

Louisville Intl

Fri 9/12

4:20 pm-5:50 am

1 stop14h 30m

Houston George Bush Intcntl

Sat 9/13

10:02 pm-5:39 pm

1 stop18h 37m

$183

LouisvilleHouston

SDF - IAH

SDFIAH

Louisville Intl

Sat 9/13

8:23 am-6:12 pm

1 stop10h 49m

Houston George Bush Intcntl

Sun 9/14

7:10 am-5:39 pm

1 stop9h 29m

$183

LouisvilleHouston

SDF - IAH

SDFIAH

Louisville Intl

Thu 10/30

7:49 am-12:11 pm

1 stop5h 22m

Houston George Bush Intcntl

Tue 11/4

8:31 pm-9:59 am

1 stop12h 28m

$191

LouisvilleHouston

SDF - IAH

SDFIAH

Louisville Intl

Fri 9/12

8:23 am-6:12 pm

1 stop10h 49m

Houston George Bush Intcntl

Wed 9/17

10:02 pm-5:39 pm

1 stop18h 37m

$191

LouisvilleHouston

SDF - IAH

SDFIAH

Louisville Intl

Mon 10/27

7:49 am-12:11 pm

1 stop5h 22m

Houston George Bush Intcntl

Sat 11/1

10:22 am-6:03 pm

1 stop6h 41m

$191

LouisvilleHouston

SDF - IAH

SDFIAH

Louisville Intl

Sat 11/1

6:58 pm-12:24 am

1 stop6h 26m

Houston George Bush Intcntl

Tue 11/4

8:31 pm-9:59 am

1 stop12h 28m

$194

LouisvilleHouston

SDF - IAH

SDFIAH

Louisville Intl

Mon 9/8

8:23 am-6:12 pm

1 stop10h 49m

Houston George Bush Intcntl

Thu 9/11

12:47 pm-10:04 pm

1 stop8h 17m

$198

LouisvilleHouston

SDF - IAH

SDFIAH

Louisville Intl

Thu 10/30

7:49 am-12:11 pm

1 stop5h 22m

Houston George Bush Intcntl

Sat 11/8

12:17 pm-11:45 pm

1 stop10h 28m

$202

LouisvilleHouston

SDF - IAH

SDFIAH

Louisville Intl

Sat 10/11

6:58 pm-12:24 am

1 stop6h 26m

Houston George Bush Intcntl

Sat 10/18

11:55 am-10:47 pm

1 stop9h 52m

$202

LouisvilleHouston

SDF - IAH

SDFIAH

Louisville Intl

Thu 9/4

4:20 pm-5:50 am

1 stop14h 30m

Houston George Bush Intcntl

Thu 9/11

12:47 pm-10:04 pm

1 stop8h 17m

$203

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

Showing 1-10 of 18 results
1
2

Best time to book a flight from Louisville to George Bush Intcntl

Have a flexible travel schedule? Discover the best time to fly to George Bush Intcntl from Louisville 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 Louisville to Houston George Bush Intcntl Airport

How far ahead should I book a flight from Louisville to Houston George Bush Intcntl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Louisville to George Bush Intcntl. Price data was last updated on August 8, 2025.

The best time to book flights from Louisville to Houston George Bush Intcntl Airport is 66 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.

What is the cheapest month to book a flight from Louisville to Houston George Bush Intcntl Airport?

Currently, August is the cheapest month in which you can book a flight from Louisville to Houston George Bush Intcntl Airport (average of $241). Flying from Louisville to Houston George Bush Intcntl Airport in March is currently the most expensive (average of $339). 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 SDF to IAH?

Find hourly flight availability from Louisville to George Bush Intcntl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 15, 2025.

A simple way to save on the total cost of your ticket is to fly from Louisville to Houston George Bush Intcntl Airport at noon. If you’re flexible enough to do this you can expect to save up to 61% on your trip compared to booking a flight in the afternoon.

Reviews of airlines servicing George Bush Intcntl

Get insights into the airlines that provide service to George Bush Intcntl. 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 George Bush Intcntl. Reviews last updated August 15, 2025.
See what other customers who have flown with Delta, United Airlines, and American Airlines from Louisville to Houston George Bush Intcntl Airport 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
7,982 reviews

Overall

8.0

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

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
7,982 reviews
Delta
8.0
Very good
7,982 reviews

Overall

8.0

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

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
8,915 reviews
Delta
8.0
Very good
7,982 reviews

Overall

8.0

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

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
7,982 reviews

Overall

8.0

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

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!
Spirit Airlines
6.3
Okay
8,046 reviews
Delta
8.0
Very good
7,982 reviews

Overall

8.0

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

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 Louisville to George Bush Intcntl. 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 from for flights from Louisville to Houston George Bush Intcntl?

    Most people fly from Louisville Intl (SDF) if they book a flight from Louisville to Houston George Bush Intcntl. On average, Louisville Intl has 8 outbound flights to Houston George Bush Intcntl per day from 4 airlines. Louisville Intl is conveniently located just 5.3 mi from Louisville’s city center.

  • What are the cheapest airlines flying from Louisville to Houston George Bush Intcntl Airport round-trip?

    According to our current data, Spirit Airlines ($153), Delta ($283), and United Airlines ($290) offers the cheapest pricing from Louisville to Houston George Bush Intcntl Airport. Users have found that Spirit Airlines is 62% cheaper than the other options available to this destination.

  • What are the most reliable airlines from Louisville to Houston George Bush Intcntl Airport?

    The top 3 most reliable airlines when flying from Louisville to Houston George Bush Intcntl Airport are ANA (72%), Copa Airlines (71%) and United Airlines (66%).

  • What are the cheapest flights from Louisville to Houston George Bush Intcntl Airport?

    Looking at all options, your cheapest flight can be booked for $179. While the most popular route (Louisville Intl - Houston George Bush Intcntl) can be booked for $183 on average our data indicates $457 when flying from Louisville to Houston George Bush Intcntl Airport.

  • Can I find deals for flights from Louisville to George Bush Intcntl that include hotel bookings?

    Yes. In addition to deals on Louisville to George Bush Intcntl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Louisville to George Bush Intcntl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Louisville to George Bush Intcntl.

  • Can I find deals for business class flights from Louisville to George Bush Intcntl?

    Yes. Cheapflights offers flight deals from Louisville to George Bush Intcntl 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 Louisville to Houston George Bush Intcntl Airport?

    Currently, August is the cheapest month in which you can book a flight from Louisville to Houston George Bush Intcntl Airport (average of $241). Flying from Louisville to Houston George Bush Intcntl Airport in March is currently the most expensive (average of $339). 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 Houston George Bush Intcntl Airport?

Book flights to Houston George Bush Intcntl Airport if you plan to visit one of these locations
Montgomery
Spring
Humble
The Woodlands
Conroe
Tomball
Katy
Jersey Village
Cypress

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Top 4 airlines flying from Louisville to George Bush Intcntl

Discover the top 4 airlines that operate flights from Louisville to George Bush Intcntl. 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 August 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$153Average$267FlexibilityNo cancel feeOn-time65%
DeltaCheapest$283Average$358FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$290Average$391FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$300Average$408FlexibilityNo cancel feeOn-time71%

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