SDF - IAH

$79 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 3/3. 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
$176
Overall average: $416
Spirit Airlines
Thu 2/19Tue 2/24
SDF - IAH • 1 stop
Cheapest non-stop
$324
Typical prices: $344-$434
United Airlines
Wed 4/22Fri 4/24
SDF - IAH • Non-stop
Top airlines
Spirit Airlines
Cheapest • from $176 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
4 weeks
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 54% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
August
Cheapest • 25% price drop
February
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
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

Thu, Feb 19 - Tue, Feb 24
Spirit Airlines Logo
3:33 pm - 12:18 am
SDF
-
IAH
9h 45m
1 stop
Spirit Airlines Logo
7:21 am - 2:38 pm
IAH
-
SDF
6h 17m
1 stop
$176Spirit Airlines
Mon, Feb 23 - Thu, Feb 26
Spirit Airlines Logo
1:19 pm - 8:45 pm
SDF
-
IAH
8h 26m
1 stop
Spirit Airlines Logo
7:21 am - 2:38 pm
IAH
-
SDF
6h 17m
1 stop
$181Spirit Airlines
Thu, Feb 26 - Tue, Mar 3
Spirit Airlines Logo
3:33 pm - 12:18 am
SDF
-
IAH
9h 45m
1 stop
Spirit Airlines Logo
5:46 am - 2:38 pm
IAH
-
SDF
7h 52m
1 stop
$184Spirit Airlines
Fri, Apr 10 - Mon, Apr 13
Multiple Airlines Logo
7:48 pm - 8:40 am
SDF
-
IAH
13h 52m
1 stop
Multiple Airlines Logo
11:42 am - 11:47 am
IAH
-
SDF
23h 05m
1 stop
$200Multiple Airlines
Sat, Mar 7 - Mon, Mar 9
Multiple Airlines Logo
12:00 pm - 6:53 pm
SDF
-
IAH
7h 53m
1 stop
Multiple Airlines Logo
9:16 am - 2:38 pm
IAH
-
SDF
28h 22m
1 stop
$215Multiple Airlines
Sun, Feb 22 - Tue, Feb 24
Spirit Airlines Logo
3:33 pm - 8:00 am
SDF
-
IAH
17h 27m
1 stop
Spirit Airlines Logo
5:46 am - 2:38 pm
IAH
-
SDF
7h 52m
1 stop
$226Spirit Airlines
Wed, Mar 18 - Sun, Mar 22
Spirit Airlines Logo
12:09 pm - 8:52 pm
SDF
-
IAH
9h 43m
1 stop
Spirit Airlines Logo
5:45 am - 2:33 pm
IAH
-
SDF
7h 48m
1 stop
$227Spirit Airlines
Mon, Feb 23 - Thu, Feb 26
Multiple Airlines Logo
1:19 pm - 6:28 pm
SDF
-
IAH
30h 09m
1 stop
Multiple Airlines Logo
6:07 pm - 8:40 am
IAH
-
SDF
13h 33m
2 stops
$230Multiple Airlines
Thu, Apr 23 - Mon, Apr 27
Spirit Airlines Logo
3:33 pm - 11:59 pm
SDF
-
IAH
9h 26m
1 stop
Spirit Airlines Logo
4:22 pm - 2:38 pm
IAH
-
SDF
21h 16m
1 stop
$231Spirit Airlines
Fri, Apr 10 - Mon, Apr 13
Multiple Airlines Logo
7:48 pm - 10:36 am
SDF
-
IAH
15h 48m
2 stops
Multiple Airlines Logo
11:42 am - 11:47 am
IAH
-
SDF
23h 05m
1 stop
$233Multiple 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 Thursdays and avoid leaving on a Monday, 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 January, where the average cost of round-trip tickets is $606 and $546 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.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $409 on average.

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 54% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 10 weeks before departure.

Good to know

Low seasonDecember
Cheapest flight$79
Best time to beat the crowds but there is an average 49% increase in price.
Most popular time to fly with an average 2% 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 $79 for a one-way ticket and $176 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, Delta, and JetBlue 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?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between Louisville and Houston George Bush Airport, with SkyTeam 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 $399 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 $400 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 $195 or less one-way and $428 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 8130 reviews
8.1Boarding
8.5Crew
7.8Entertainment
7.9Comfort
7.2Food
Airline reviews

I didn't take this flight. I changed the flight. Why am I getting surveys and notifications on flights that I change. Seems like a defect with Kayak.

2.0 MediocreTodd, Jan 2026
IAH - ATL
Read more Delta reviews

I didn't take this flight. I changed the flight. Why am I getting surveys and notifications on flights that I change. Seems like a defect with Kayak.

Delta One is extraordinary. I fly business when somebody hires me. I just wonder why there is such a chasm between business class and the insanely inhumane and nonsensical coach. The seats are not large enough to fit even my tiny wife. We fly 10% of what we did because we don’t want to pay 5-10 k but for $400 it’s unbearable. It seems like the accountants took over and made stupid decisions. Screw in 20 extra seats and make it so unbearable that people fly 90% less. Just put the damn price up and put some proper chairs in. But business, yay.

Timing, quality of service, promptness and courtesy of the staff

It was last minute due to weather - considering - it was amazing! Good smiles, friendly staff and they were making sure we knew what was going on when and where.

delta last minute gave me a boarding pass for a different flight with no confirmation that they were changing it

The service from the flight attendants were of supreme quality. They greeted and treated everyone with a wide smile. This is totally absent nowadays. Kudos to them!!!!

Excellent flight and got us around tough weather. Only issue was seat TV did not work and crew tried to reboot.

Very large passenger too space from my own seat. Arm board couldn’t be lowered because of his size. It wads very uncomfortable trip, as the flight was full couldn’t move anywhere having back pain because of the position in which I was the entire flight.

was sitting in the jet bridge for 10 minutes in -20 degree weather waiting for my bag

Outdated equipment in disrepair, wifi inoperable. Broken seats, taped air vents, generally poor condition, the 717 showed its age and lack of upkeep.

Delayed, toilets did not flush, pilot parked to far away from Gate

Check-in, boarding and the flight from Phoenix to Houston was quick and easy. The flight from Houston to Shreveport was delayed 5 hours. It was frustrating but I think United handled it the best they could.

The staff was hospitable and professional. The seat had a bit of wear. The winner shade was stuck 1/4 open. I received the best of both worlds. The morning sun was able to come in and blind the screen i was trying to use while at the same time it was too low to look out and enjoy the view. Rather embarrassing for a 1st class ticket.

United is an incompetent airline. They parked the plane on the tarmac for an hour after arriving because they “didn’t have a gate available” it was actually some sort of lie because as we de planed there were approximately 9 open and manned and empty gates that we walked past. Many people on the flight missed connections for the hour long sit on the tarmac. Utterly baffling and incompetent behavior from United flight ops.

I boarded flight UA#1318 at Sacramento International Airport going back to Houston TX. The flight was scheduled at 5:10am. I was able to check in virtually using the United Airlines app. When I entered the airport, there was no one outside assisting with checked bags as it was for Delta Airlines. Immediately upon entering, there was a LONG, EXTREMELY LONG line to the kiosks to get boarding passes. I stand in line to get boarding passes then had to move to ANOTHER EXTREMELY LONG line to get my bags checked in. While standing in this line, we noticed an agent taking customers to 3 at a time to her station to check their bags in. Lucky for me, she called me back, checked my bags for me and I was on my way. I then encountered another long line at the TSA check and to avoid I ending up having to sign up for CLEAR to bypass it. So glad, I did.,...Both of my flights were great with no issues, butthe check in progress at Bush Airport was so much smoother. Check-in at SMF airport needs to be anaylzed and corrected. Do better United, I know you can....thanks

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.

Crew was helpful and cheerful especially when they had no refreshments to work with. The plane was never serviced and had nothing but limited water and coffee onboard. For the price point, a concern of services.

AA did not allow to board a flight because my connecting flight from DFW had been canceled. I got on another flight to another city. No service on the plane and I did not use their entertainment system.

2 hour delay due to equipment failure. No updates via the app and airport screens (which continued to show a departure time in the past). AA eventually switched planes and the new plane was not catered or cleaned correctly.

I booked an aisle seat and was given a middle. At 6'4" 230lbs, it is not ideal to fly in the middle row for myself and passengers.

The aircraft had several problems - from excess fuel to non operational ac. Two hours of delay in Chicago could have been avoided with proper planning and aircraft maintenance.

They made me pay $40 to check a bag that was listed as free when I bought my ticket. Then before boarding they offered to check any bags free.

The seats from lax to DFW was so tight that I could not move my legs . No WiFi and had to pay . Not a good selection of entertainment

The flight was good. We had to spend almost an hour on the tarmac when we arrived in Dallas. Waiting for a gate. What’s the point of arriving early if you have no gate to park at?

Lower WiFi prices; allow us to see our flight on a map; more variety of drink choices.

Kayak was among the missing. There was not the usual advice regarding next gate after arriving in Dallas. No communication after the reminder to check in before the Moline flight. What happened?

For the cost you can't e too critical, but the inablitiy to recline the seat and minimal cushioning in the seats made for a less than comfortable flight. Other than that we had an ealry departure and arrival, boarding was smooth.

Horrible experience. First and last time using this airline. Made an announcement that boarding will start in 15 minutes, canceled the flight 5 minutes later due to no airline staff. Had to book another flight on Delta since Spirit had no other flights arriving to my original destination the same day. I wouldn't recommend anyone to fly with Spirit. No wonder why it consistently ranks high among worst airlines.

The plane was supposed to leave at 12:59 Amma and another plane took us around 9:30 am. There were 7 delay announcements. We were to receive a voucher of $12 back to pay for food at any place in the airport. One passenger tried to use the voucher was denied. I did not receive the voucher for me, my son, and grandson. I went to the desk and informed them and they took my phone # and email and they told me to wait. I did and was never sent. The plane was uncomfortable, the crew was dismissive of anyone beyond the last two seats. I will NEVER fly or recommend Spirit Airlines again.

I knew what I was getting into, but never again. Hour long bag drop. 1.5 hour delay. 1 hr 45 mins sitting on the tarmac after landing. They lost a bunch of bags but luckily not mine. Awful experience.

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.

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

Information on your arrival and departure airports