HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
George Bush Intcntl

$118+ 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 6/1. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — IAH
Jun 11 — Jun 181
Thu 6/11
Thu 6/18
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Louisville to George Bush Intcntl 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 Louisville Intl to Houston George Bush Intcntl are usually found in August 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

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 May 12, 2026.

This United Airlines deal was found by Cheapflights users on 5/7. 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 6/109:30 am
SDF
-
IAH
Nonstop2h 28m
United Airlines
Wed 6/106:49 pm
IAH
-
SDF
Nonstop2h 26m
United Airlines
Deal found 5/7$265
This United Airlines deal was found by Cheapflights users on 5/7. 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 5/286:15 am
SDF
-
IAH
Nonstop2h 27m
United Airlines
Mon 6/16:49 pm
IAH
-
SDF
Nonstop2h 26m
United Airlines
Deal found 5/7$269
This United Airlines deal was found by Cheapflights users on 5/7. 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 9/99:30 am
SDF
-
IAH
Nonstop2h 29m
United Airlines
Wed 9/93:10 pm
IAH
-
SDF
1 stop6h 12m
United Airlines
Deal found 5/7$275
This United Airlines deal was found by Cheapflights users on 5/7. 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.
Mon 6/86:00 pm
SDF
-
IAH
1 stop7h 30m
United Airlines
Tue 6/96:49 pm
IAH
-
SDF
Nonstop2h 26m
United Airlines
Deal found 5/7$277
This United Airlines deal was found by Cheapflights users on 5/7. 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 5/286:00 am
SDF
-
IAH
1 stop5h 31m
United Airlines
Sat 5/304:35 pm
IAH
-
SDF
Nonstop2h 26m
United Airlines
Deal found 5/7$279
This American Airlines deal was found by Cheapflights users on 5/8. 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 6/97:18 pm
SDF
-
IAH
1 stop5h 41m
American Airlines
Tue 6/1610:38 am
IAH
-
SDF
1 stop7h 22m
American Airlines
Deal found 5/8$285
This American Airlines deal was found by Cheapflights users on 5/7. 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.
Mon 6/87:18 pm
SDF
-
IAH
1 stop5h 41m
American Airlines
Tue 6/97:00 am
IAH
-
SDF
1 stop4h 41m
American Airlines
Deal found 5/7$287
This Delta deal was found by Cheapflights users on 5/9. 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 9/57:00 am
SDF
-
IAH
1 stop6h 07m
Delta
Sat 9/127:15 am
IAH
-
SDF
1 stop5h 33m
Delta
Deal found 5/9$289
This Delta deal was found by Cheapflights users on 5/8. 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 10/1010:15 am
SDF
-
IAH
1 stop5h 29m
Delta
Mon 10/121:15 pm
IAH
-
SDF
1 stop6h 36m
Delta
Deal found 5/8$299
This Kiwi.com deal was found by Cheapflights users on 5/7. 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 8/2810:39 am
SDF
-
IAH
1 stop29h 12m
Multiple Airlines
Thu 9/39:59 pm
IAH
-
SDF
2 stops33h 37m
Multiple Airlines
Deal found 5/7$319

Find 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 May 12, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$265
(United Airlines)

One-way from

$118
(Kiwi.com)

Popular in

December

Cheapest in

August

Average price

$449

Good round-trip deal

$434 or less

Good one-way deal

$244 or less
Provider with most accurate pricing for Louisville Intl-Houston George Bush Intcntl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Louisville Intl-Houston George Bush Intcntl flights.
Search Deals
From Louisville Intl to Houston George Bush Intcntl
Search Deals
One-way flight from Louisville Intl to Houston George Bush Intcntl
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($71 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals
Price to beat on a round-trip flight from Louisville Intl to Houston George Bush Intcntl.
Search Deals
Price to beat on a one-way flight from Louisville Intl to Houston George Bush Intcntl.
Search Deals

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 May 12, 2026.
Use the filters below to find and compare flights from Louisville to Houston George Bush Intcntl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LouisvilleHouston

SDF - IAH

SDFIAH

Louisville Intl

Thu 5/28

5:51 pm-11:04 pm

1 stop6h 13m

Houston George Bush Intcntl

Mon 6/1

6:49 pm-10:15 pm

Nonstop2h 26m

$279

LouisvilleHouston

SDF - IAH

SDFIAH

Louisville Intl

Mon 6/8

7:47 pm-12:30 am

1 stop5h 43m

Houston George Bush Intcntl

Fri 6/12

6:49 pm-10:15 pm

Nonstop2h 26m

$334

LouisvilleHouston

SDF - IAH

SDFIAH

Louisville Intl

Tue 6/30

7:05 am-11:23 am

1 stop5h 18m

Houston George Bush Intcntl

Thu 7/2

5:40 am-11:53 am

1 stop5h 13m

$352
Quickest round-trip

LouisvilleHouston

SDF - IAH

SDFIAH

Louisville Intl

Sat 6/20

6:15 am-7:42 am

Nonstop2h 27m

Houston George Bush Intcntl

Wed 6/24

8:30 am-11:54 am

Nonstop2h 24m

$369

LouisvilleHouston

SDF - IAH

SDFIAH

Louisville Intl

Sat 6/20

6:00 am-9:40 am

1 stop4h 40m

Houston George Bush Intcntl

Wed 6/24

9:42 am-3:31 pm

1 stop4h 49m

$373

LouisvilleHouston

SDF - IAH

SDFIAH

Louisville Intl

Thu 6/18

6:15 am-7:42 am

Nonstop2h 27m

Houston George Bush Intcntl

Mon 6/22

6:49 pm-10:15 pm

Nonstop2h 26m

$379

LouisvilleHouston

SDF - IAH

SDFIAH

Louisville Intl

Mon 6/8

7:48 pm-11:58 pm

1 stop5h 10m

Houston George Bush Intcntl

Fri 6/12

10:38 am-7:00 pm

1 stop7h 22m

$383

LouisvilleHouston

SDF - IAH

SDFIAH

Louisville Intl

Sun 6/7

7:05 am-11:23 am

1 stop5h 18m

Houston George Bush Intcntl

Thu 6/11

2:43 pm-9:19 pm

1 stop5h 36m

$399

LouisvilleHouston

SDF - IAH

SDFIAH

Louisville Intl

Thu 7/9

5:28 pm-10:24 pm

1 stop5h 56m

Houston George Bush Intcntl

Mon 7/13

5:42 am-11:51 am

1 stop5h 09m

$399

LouisvilleHouston

SDF - IAH

SDFIAH

Louisville Intl

Thu 7/2

6:34 pm-11:56 pm

1 stop6h 22m

Houston George Bush Intcntl

Fri 7/3

2:43 pm-9:19 pm

1 stop5h 36m

$409

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/7

Showing 1-10 of 22 resultsSorted by cheapest first
1
2
3

Compare providers for flights from Louisville to George Bush Intcntl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Louisville to George Bush Intcntl in May.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy2 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Louisville-Houston George Bush Intcntl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Louisville-Houston George Bush Intcntl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Louisville-Houston George Bush Intcntl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Louisville-Houston George Bush Intcntl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Louisville-Houston George Bush Intcntl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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?

The best time to book flights from Louisville to Houston George Bush Intcntl Airport is 65 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 $302). Flying from Louisville to Houston George Bush Intcntl Airport in December is currently the most expensive (average of $606). 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 May 12, 2026.

When flying from Louisville to Houston George Bush Intcntl Airport, 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 Louisville to Houston George Bush Intcntl Airport?

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 May 12, 2026.
See what other customers who have flown with Delta,United Airlines, andAmerican 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
7.9
Good
8,446 reviews

Entertainment

7.8

Crew

8.5

Comfort

7.8

Overall

7.9

Boarding

8.1

Food

7.2

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
Delta
7.9
Good
8,446 reviews
Delta
7.9
Good
8,446 reviews

Entertainment

7.8

Crew

8.5

Comfort

7.8

Overall

7.9

Boarding

8.1

Food

7.2

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
United Airlines
7.4
Good
9,701 reviews
Delta
7.9
Good
8,446 reviews

Entertainment

7.8

Crew

8.5

Comfort

7.8

Overall

7.9

Boarding

8.1

Food

7.2

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
American Airlines
7.1
Good
11,661 reviews
Delta
7.9
Good
8,446 reviews

Entertainment

7.8

Crew

8.5

Comfort

7.8

Overall

7.9

Boarding

8.1

Food

7.2

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

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 10 outbound flights to Houston George Bush Intcntl per day from 3 airlines. Louisville Intl is conveniently located just 5.3 mi from Louisville’s city center.

  • How long is the flight from Louisville to Houston George Bush Intcntl Airport?

    For as low as $352, United Airlines can have you in Houston George Bush Intcntl Airport from Louisville in 5h 18m. The distance between Louisville and Houston George Bush Intcntl Airport is about 787 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    According to our current data, Delta ($108), American Airlines ($251), and United Airlines ($269) offers the cheapest pricing from Louisville to Houston George Bush Intcntl Airport. Users have found that Delta is 73% 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 (90%), Copa Airlines (88%) and Air New Zealand (86%).

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

    Looking at all options, your cheapest flight can be booked for $169. While the most popular route (Louisville Intl - Houston George Bush Intcntl) can be booked for $320 on average, our data indicates $485 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 $302). Flying from Louisville to Houston George Bush Intcntl Airport in December is currently the most expensive (average of $606). 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
Katy
The Woodlands
Spring
Jersey Village
Humble
Tomball
Conroe
Cypress
Montgomery

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 3 airlines flying from Louisville to George Bush Intcntl

Discover the top 3 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 May 12, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$108Average$333FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$251Average$383FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$269Average$428FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
©2026 Cheapflights