SDF - IAH

$74 Find Cheap Flights from Louisville to Houston George Bush Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Louisville to George Bush Intcntl departing on 1/21. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Houston George Bush Intcntl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Louisville to Houston, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Louisville to Houston, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$154
Overall average: $389
Multiple Airlines
Wed 1/21Tue 1/27
SDF - IAH • 1 stop
Cheapest non-stop
$313
Typical prices: $378-$487
United Airlines
Tue 1/20Tue 1/20
SDF - IAH • Non-stop
When to book
4 weeks
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 55% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
August
Cheapest • 20% price drop
February
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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We hope you love your trip to George Bush Intcntl!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Louisville to George Bush Intcntl (SDF-IAH)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Louisville to George Bush Intcntl that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Louisville to George Bush Intcntl

Wed, Jan 21 - Tue, Jan 27
Multiple Airlines Logo
1:55 pm - 9:57 pm
SDF
-
IAH
9h 02m1 stop
Multiple Airlines Logo
8:45 am - 1:00 pm
IAH
-
SDF
27h 15m1 stop
$154Multiple Airlines
Tue, Jan 13 - Tue, Jan 20
Spirit Airlines Logo
3:36 pm - 8:40 am
SDF
-
IAH
18h 04m1 stop
Spirit Airlines Logo
7:45 am - 2:41 pm
IAH
-
SDF
5h 56m1 stop
$160Spirit Airlines
Tue, Jan 20 - Tue, Jan 27
Multiple Airlines Logo
3:36 pm - 11:58 pm
SDF
-
IAH
9h 22m1 stop
Multiple Airlines Logo
8:45 am - 1:00 pm
IAH
-
SDF
27h 15m1 stop
$168Multiple Airlines
Tue, Jan 13 - Tue, Jan 20
Spirit Airlines Logo
3:36 pm - 11:11 am
SDF
-
IAH
20h 35m2 stops
Spirit Airlines Logo
7:45 am - 2:41 pm
IAH
-
SDF
5h 56m1 stop
$170Spirit Airlines
Thu, Jan 15 - Thu, Jan 22
Spirit Airlines Logo
3:36 pm - 11:58 pm
SDF
-
IAH
9h 22m1 stop
Spirit Airlines Logo
7:45 am - 2:41 pm
IAH
-
SDF
5h 56m1 stop
$171Spirit Airlines
Fri, Jan 9 - Tue, Jan 13
Multiple Airlines Logo
6:54 pm - 8:40 am
SDF
-
IAH
14h 46m1 stop
Multiple Airlines Logo
8:16 pm - 1:00 pm
IAH
-
SDF
15h 44m1 stop
$172Multiple Airlines
Tue, Jan 6 - Tue, Jan 13
Multiple Airlines Logo
5:05 am - 9:03 am
SDF
-
IAH
28h 58m1 stop
Multiple Airlines Logo
8:16 pm - 1:00 pm
IAH
-
SDF
15h 44m1 stop
$174Multiple Airlines
Wed, Jan 21 - Tue, Jan 27
Multiple Airlines Logo
1:55 pm - 9:57 pm
SDF
-
IAH
9h 02m1 stop
Multiple Airlines Logo
4:35 pm - 1:00 pm
IAH
-
SDF
19h 25m2 stops
$176Multiple Airlines
Thu, Jan 8 - Tue, Jan 13
Multiple Airlines Logo
3:36 pm - 8:43 pm
SDF
-
IAH
30h 07m2 stops
Multiple Airlines Logo
8:16 pm - 1:00 pm
IAH
-
SDF
15h 44m1 stop
$178Multiple Airlines
Wed, Jan 21 - Fri, Jan 30
Multiple Airlines Logo
1:55 pm - 9:57 pm
SDF
-
IAH
9h 02m1 stop
Multiple Airlines Logo
7:45 am - 6:04 pm
IAH
-
SDF
9h 19m1 stop
$181Multiple Airlines
Booking Insights

KAYAK's insights & trends for Louisville to George Bush Intcntl flights

Get data-powered insights and trends into flights from Louisville to George Bush Intcntl to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Louisville to Houston George Bush Airport?

The average price of all round-trip flights from Louisville to Houston George Bush Intcntl Airport clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Louisville to Houston George Bush Airport, look for departures on Wednesdays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from Houston George Bush Airport, Saturday is the cheapest day to fly and Sunday is the most expensive.

What is the cheapest month to fly from Louisville to Houston George Bush Intcntl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Louisville to Houston George Bush Intcntl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Louisville to Houston George Bush Intcntl Airport is August, where tickets cost $306 (return) on average. On the other hand, the most expensive months are December and February, where the average cost of round-trip tickets is $525 and $408 respectively.

Can I save money by flying with a layover from Louisville to Houston George Bush Intcntl Airport?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $368, prices are generally cheapest when you fly direct.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Louisville to Houston George Bush Intcntl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Louisville to Houston George Bush Intcntl Airport, you should book around 4 weeks before departure, which saves you about 55% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 10 weeks before departure.

Good to know

Low seasonJune
Cheapest flight$74
Best time to beat the crowds with an average 7% drop in price.
Most popular time to fly with an average 5% increase in price.
Flight from Louisville to Houston George Bush Airport

When to book flights from Louisville to George Bush Intcntl

Are your dates flexible? Find out the best times to travel from Louisville to George Bush Intcntl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Louisville to Houston George Bush Airport flights

  • What is the cheapest flight from Louisville to Houston George Bush Intcntl Airport?

    In the last 3 days, the lowest price for a flight from Louisville to Houston George Bush Intcntl Airport was $74 for a one-way ticket and $154 for a round-trip.

  • Do I need a passport to fly between Louisville and Houston George Bush Airport?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which airports will I be using when flying from Louisville to Houston George Bush Airport?

    On your way to Houston George Bush Airport, you’ll fly out from Louisville Intl. You’ll be landing at Houston George Bush Intcntl.

  • Which airlines offer Wi-Fi service onboard planes from Louisville to Houston George Bush Airport?

    American Airlines, JetBlue, and Delta offer inflight Wi-Fi service on the Louisville to Houston George Bush Airport flight route.

  • Which aircraft models fly most regularly from Louisville to Houston George Bush Airport?

    The Embraer 175 (Enhanced Winglets) is the aircraft model that flies most regularly on the Louisville to Houston George Bush Airport flight route.

  • Which airline alliances offer flights from Louisville to Houston George Bush Airport?

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between Louisville and Houston George Bush Airport, with oneworld being the most commonly used for this route.

  • On which days can I fly direct from Louisville to Houston George Bush Airport?

    There are nonstop flights from Louisville to Houston George Bush Airport on a daily basis.

  • Which is the best airline for flights from Louisville to Houston, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Louisville to Houston are Delta and United Airlines. With an average price for the route of $338 and an overall rating of 7.9, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $390 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Louisville to Houston George Bush Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Louisville to Houston George Bush Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Louisville to Houston George Bush Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Houston George Bush Airport from Louisville is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Louisville to Houston George Bush Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Houston George Bush Airport with an airline and back to Louisville with another airline. Booking your flights between Louisville and IAH can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Louisville to Houston George Bush Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Houston George Bush Airport from Louisville up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Louisville to Houston George Bush Intcntl Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $279 or less one-way and $418 or less round-trip.

Prefer to fly direct from Louisville to Houston George Bush Airport?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Louisville Intl to Houston George Bush Intcntl.
Find which airlines fly direct from Louisville Intl Airport to Houston George Bush Intcntl Airport, which days they fly and book direct flights.

Direct departures

Louisville Intl to Houston George Bush Intcntl

Monday

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Direct returns

Houston George Bush Intcntl to Louisville Intl

Monday

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Reviews of the top 4 airlines serving from Louisville to George Bush Intcntl

 
See real verified KAYAK customer reviews for airlines flying from Louisville to Houston. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Louisville to George Bush Intcntl? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8010 reviews
8.5Crew
7.3Food
7.9Comfort
8.1Boarding
7.9Entertainment
Airline reviews

Original flight was cancelled and when i was rebooked by the airline, they couldn't seat me in the same type of seat as I had originally booked (went from window/aisle to middle/middle and one was a bulkhead seat, and other wasn't in the same class)

6.0 GoodJeff, Dec 2025
JFK - MIA
Read more Delta reviews

Original flight was cancelled and when i was rebooked by the airline, they couldn't seat me in the same type of seat as I had originally booked (went from window/aisle to middle/middle and one was a bulkhead seat, and other wasn't in the same class)

Lady Pilot was perfect in every way wheels up to wheels down communication, professionalism, excellent on time departure and on time arrival, excellent communication! Fantastic job with Superb attitude!!

The food is terrible. The staff is wonderful. Comfort is good.

Left on time, a bit delayed due to headwinds most of the trip.

I fly Delta all the time, have Platinum Medallion status. But this route seems to have major problems with delays and seems to never leave on time! Have only taken it twice in the last two weeks, and each time it had delays of more than 1 hour... very disappointed!!!!

Good seats in Main cabin, excellent service and excellent landing

My flight was cancelled with no explanation after I had already cleared security. I was given 4 options to rebook, only one being non-stop like I had paid for. I grabbed it. It was 4 plus hours later and then took off even later. Biggest complaint is that I booked early and had an aisle seat. They gave me a "window" seat in front of the exit row, so the seat did not decline. I weigh all of 103 #s and it was tight for me! For what I paid, I feel I was kind of ripped off. I think they should have given me the empty comfort seat for the inconvenience. There was no apology nor any explanation as to why the flight was cancelled. My guess is it benefitted Delta in some way.

Very smooth, on-time, and pleasantly uneventful flight. The team at the gate and on board were professional and genuinely courteous. The pilot kept us well updated throughout, and both takeoff and landing were steady and enjoyable without any drama. Just a good, solid flight. Thank you! 💗

Staff was exceptional! Everyone was kind, professional and friendly making the trip very pleasant. Thank you!

No lunch on a x-country flight scheduled for 10:50 am departure, arrived 5+ hrs later. That requires a black box label before you pay for the tickets. Worst, when I checked in online, it's specifically said that lunch was served on his flight for economy Plus passengers.

Staff on board was excellent. Positive upbeat helpful- like it used to be.

Ot was overall fine. Left on time and had basic snacks. Weather was finicky but that’s not the airlines fault.

Even though we were delayed, we were able to make our connection

Crew and customer service were excellent. This flight also had plenty of leg room and seat mounted screens for entertainment. A very pleasant flight all around!

I was in first class. The outlets at my seat did not work. The plane was shabby and run down. I had prepurchsed a day subscription for internet that was not redeemable. I had to repurchase the internet for my flight and then it didn’t work anyway. Quite disappointed in what was supposed to be the launch of a great vacation.

Flight was good and crew was super polite. However, there were around 5 kids screaming the WHOLE 2 hours. I understand kids have to come but parents need to do something to control their children. They make the experience terrible, especially after finishing 16 hour shifts at the hospital I needed some sleep, which I did not get.

Armrest controller on my seat 35D and nextbooennseat 35E did not work right. Hard to press buttons to recognize and 35D had constantnpressure either upmost down somit was nearly impossible to make selections. .

I flew with my dog and had already purchased my dog’s ticket. Even that morning I had called costumer service to insure that my husband and I had seats together since the website was giving me an error when choosing our seats and the representative mentioned our dog. I showed up early to the airport and when I got to the gate and we started boarding I was help back and told that I was supposed to have a yellow tag and that I should have checked in at the counter for them to give me that tag. I was not aware of this, the representative on the phone did not say anything. Nor did I see it anywhere in the checking process online, so if you travel with a pet and are not checking in luggage, just know that you still have to go to the check in counter when arriving at the airport unless you want to be the last one to board and not have room for your carry on in the overhead bins. Other than that, I had a great experience.

This flight was perfect. No complaints and only the highest regard for the crew and ground staff and how they executed perfectly. I fly a lot with United and would request predictability and transparency in their operations instead of last minute changes.

This is for UA2274 from Houston to Sacramento. The flight was delayed arriving due to mechanical issues so we left about 3 hours later than scheduled. When boarding the plane the temperature inside was excessive - likely close to 100. Pilot apologized and said it was going to improve at altitude, which it did. But before that I honestly thought there might have been more delays removing passengers made ill from the heat. We were delayed leaving due to another mechanical issue. There was not water on the plane due to a panel that was not secured. They did that quickly, but the combination of mechanical issues was rather disturbing and did not reflect well on United.

The boarding was as always, the crew tried their best but not enough. The food was a disaster I had dietary restrictions that were half met because the company did not loaded the food for the flight. The entertainment screen was fine but content was not and also they removed the free messaging option from the flight and they charged 30 dollars for that crappy bandwidth. This flight is not worth the cost and the company is going down on quality.

A little late at the start but all worked out well.

I liked the humor of the captain and crew on the flight from Flagstaff to Dallas. They were humorous.

After arriving in Dallas, the aircraft taxied for an unusually long time and was unable to park at the gate, which caused a significant delay and made me miss my connecting flight. I then had to wait in a very long line to be rebooked, and I was told that no hotel or meal accommodations would be provided. What is even more unacceptable is that my luggage was mishandled and has still not been located. My suitcase contains important medications that I urgently need, and I have been unable to access them due to the airline’s mishandling. This situation has caused me considerable stress and inconvenience, and I need this issue to be resolved immediately.

I appreciated that it was on time, safe and professional. I didn’t like that I wasn’t in a place where I had a window at my window seat. It would have been nice to know that in advance. If it was mentioned in the ticketing, I didn’t notice it.

I have a gluten allergy so didn't have any food

Baggage handling poor. Second time this has happened. My bag went to San Francisco instead of Fiji. No apology. Luckily Nadi airport staff are fantastic. My bag arrived in Fiji the next day.

Wish a flight with more than 2 hours with some snack rather than just cookie/biscuit.

Flight delayed and missed connection. Rescheduled flight cancelled after 6 hrs wait. Rerouted thru ORD, flight cancelled, overnight stay in ORD. Still in the air on new flight!

Delayed delayed delayed and no offer for food or vouchers

Our flight got rescheduled 48 hours later, the airline didn’t pay a penny for our expenses.

My baby was crying uncontrollably for the longest time and the entire crew was SO supportive, I’m so appreciative of them. Thank you so much for the support during an exhausting moment. We got very lucky.

Uncomfortable seats and tiny tray table. Expensive snacks. Flight was on time and crew was pleasant but take me back to Southwest!

Boarding and unboarding processes were pretty smooth. I gave a low score for Boarding because of how my flight was missing from all the boards at the airport, and when I checked the flight status on the Spirit website, it said it would be departing from Terminal E, gate D15. There are no "D" gates in terminal E.

The flight was on time and the crew was very professional and accommodating. When other airlines are canceling flights Spirit is still flying with on time flights. I have no complaints and will continue to choose Spirit when it is the best option for me.

Prices for bags are extremely expensive and if you go higher on weight, the charge is ridiculous.

Waited at the airport for over 4 hours to board this flight. Terrible airline

They specifically ignored a luggage tag I had for a dialysis machine. It's a life saving machine that they tossed on the baggage carousel, damaging the suitcase and almost breaking the machine. The crew promised me it would come to me at the gate and they ignored it.

Flight was good and on time. Everyone was nice. Seats aren't very comfortable

The seats are too small the plane makes weird noise when landing 🛬

Everything you need to know for your flight from Louisville to George Bush Intcntl

Information on your arrival and departure airports