IAH - SDF

$95 Find Cheap Flights from Houston George Bush Airport to Louisville

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from George Bush Intcntl to Louisville departing on 5/14. 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 Louisville

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Houston to Louisville, 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 Houston to Louisville, as well as popular online travel agencies
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41.299.237 searches in the past 7 days on KAYAK

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Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$212
Overall average: $403
Spirit Airlines
Thu 4/16Mon 4/20
IAH - SDF • 1 stop
Cheapest non-stop
$293
Typical prices: $379-$407
United Airlines
Thu 4/2Mon 4/6
IAH - SDF • Non-stop
Top airlines
Cheapest • from $226 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with United Airlines and American Airlines. Average duration is 2h 21m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top layover airports
Cheapest • Avg $226 (round-trip)
Shortest trip • 5h 43m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 42% price drop
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 Louisville!
Flight Deals
Booking Insights
Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from George Bush Intcntl to Louisville 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 George Bush Intcntl to Louisville

Thu, Apr 16 - Mon, Apr 20
Multiple Airlines Logo
12:16 pm - 5:04 pm
IAH
-
SDF
27h 48m
1 stop
Multiple Airlines Logo
7:48 pm - 11:27 am
SDF
-
IAH
16h 39m
1 stop
$212Multiple Airlines
Fri, Apr 24 - Mon, Apr 27
Multiple Airlines Logo
8:15 am - 5:04 pm
IAH
-
SDF
7h 49m
1 stop
Multiple Airlines Logo
7:48 pm - 11:27 am
SDF
-
IAH
16h 39m
1 stop
$222Multiple Airlines
Thu, Apr 16 - Mon, Apr 20
Spirit Airlines Logo
12:16 pm - 5:04 pm
IAH
-
SDF
27h 48m
1 stop
Spirit Airlines Logo
6:06 pm - 11:27 am
SDF
-
IAH
18h 21m
1 stop
$226Spirit Airlines
Thu, Apr 16 - Mon, Apr 20
Multiple Airlines Logo
12:16 pm - 5:04 pm
IAH
-
SDF
27h 48m
1 stop
Multiple Airlines Logo
7:48 pm - 11:11 am
SDF
-
IAH
16h 23m
2 stops
$238Multiple Airlines
Thu, Apr 2 - Sun, Apr 5
Spirit Airlines Logo
5:45 am - 2:33 pm
IAH
-
SDF
7h 48m
1 stop
Spirit Airlines Logo
3:33 pm - 11:59 pm
SDF
-
IAH
9h 26m
1 stop
$245Spirit Airlines
Mon, Apr 6 - Fri, Apr 10
Multiple Airlines Logo
11:42 am - 11:47 am
IAH
-
SDF
23h 05m
1 stop
Multiple Airlines Logo
12:09 pm - 10:37 pm
SDF
-
IAH
11h 28m
1 stop
$250Multiple Airlines
Fri, Apr 24 - Mon, Apr 27
Multiple Airlines Logo
8:15 am - 5:04 pm
IAH
-
SDF
7h 49m
1 stop
Multiple Airlines Logo
7:48 pm - 4:54 pm
SDF
-
IAH
22h 06m
2 stops
$251Multiple Airlines
Thu, Apr 23 - Sun, Apr 26
Spirit Airlines Logo
12:16 pm - 5:04 pm
IAH
-
SDF
27h 48m
1 stop
Spirit Airlines Logo
6:06 pm - 11:27 am
SDF
-
IAH
18h 21m
1 stop
$253Spirit Airlines
Thu, Mar 26 - Wed, Apr 1
Spirit Airlines Logo
4:30 pm - 11:14 am
IAH
-
SDF
17h 44m
1 stop
Spirit Airlines Logo
12:09 pm - 10:34 pm
SDF
-
IAH
11h 25m
1 stop
$256Spirit Airlines
Fri, May 15 - Sun, May 17
Multiple Airlines Logo
8:29 am - 6:58 pm
IAH
-
SDF
9h 29m
1 stop
Multiple Airlines Logo
6:06 pm - 11:24 am
SDF
-
IAH
18h 18m
1 stop
$262Multiple Airlines
Booking Insights

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

Get data-powered insights and trends into flights from George Bush Intcntl to Louisville 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 Houston George Bush Airport to Louisville?

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

Your flight ticket price will generally be cheaper if you fly to Louisville on a Saturday and more expensive on a Monday. On your return trip to Houston George Bush Airport, you should consider flying back on a Thursday, and avoid Mondays for better deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Houston George Bush Intcntl Airport to Louisville, 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 Houston George Bush Intcntl Airport to Louisville is July, where tickets cost $290 (return) on average. On the other hand, the most expensive months are February and August, where the average cost of round-trip tickets is $822 and $795 respectively.

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

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 $403 on average.

Good to know

Low seasonApril
Cheapest flight$95
Best time to beat the crowds with an average 20% drop in price.
Most popular time to fly and prices are also 42% lower on average.
Flight from Houston George Bush Airport to Louisville

When to book flights from George Bush Intcntl to Louisville

Are your dates flexible? Find out the best times to travel from George Bush Intcntl to Louisville 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 Houston George Bush Airport to Louisville flights

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

    In the last 3 days, the lowest price for a flight from Houston George Bush Intcntl Airport to Louisville was $95 for a one-way ticket and $212 for a round-trip.

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

    No

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

    Only American Airlines offers inflight Wi-Fi service on the Houston George Bush Airport to Louisville flight route.

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

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

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

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

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

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

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

    The two airlines most popular with KAYAK users for flights from Houston to Louisville are United Airlines and American Airlines. With an average price for the route of $514 and an overall rating of 7.4, United Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $468 and an overall rating of 7.1.

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

    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 Houston George Bush Airport to Louisville.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Louisville from Houston George Bush Airport 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 Houston George Bush Airport to Louisville?

    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 Louisville with an airline and back to Houston George Bush Airport with another airline. Booking your flights between Houston George Bush Airport and SDF 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 Houston George Bush Airport to Louisville?

    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 Louisville from Houston George Bush Airport 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 Houston George Bush Intcntl Airport to Louisville

  • Looking for a cheap flight? 25% of our users found flights on this route for $387 or less one-way and $378 or less round-trip.

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

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

Direct departures

Houston George Bush Intcntl to Louisville Intl

Monday

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

American Airlines,United Airlines

American Airlines,United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Direct returns

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,American Airlines

United Airlines,American Airlines

See more direct flights

Reviews of the top 3 airlines serving from George Bush Intcntl to Louisville

 
See real verified KAYAK customer reviews for airlines flying from Houston to Louisville. 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 George Bush Intcntl to Louisville? 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.
7.4
United AirlinesOverall score based on 9428 reviews
8.1Crew
7.1Entertainment
7.3Comfort
7.7Boarding
6.6Food
Airline reviews

Terrible because it was cancelled due to volcanic ash clouds in Guatemala while all other airlines kept flying. Had to pay for a hotel to stay overnight in Houston and try to fly next day.

2.0 MediocreAnonymous, Feb 2026
IAH - GUA
Read more United Airlines reviews

Terrible because it was cancelled due to volcanic ash clouds in Guatemala while all other airlines kept flying. Had to pay for a hotel to stay overnight in Houston and try to fly next day.

Overall we had a good experience during our flight from San Francisco to Houston.

Airport terminal was outdated, flight was on a small jet with no wifi

The crew made our experience extremely bad. They were rude and didn’t have anything for kids.

Short flight, but no drink/snack service. The flights both going and coming were delayed.

The power at the seat didn't work and the seat itself was difficult to adjust - this was a business class seat. Flight attendant gave me miles to compensate. The attendant was very professional and on top of his game the entire flight.

I like flying first class, and United has a nice one

Unbelievably poor service from flight attendants. They didn’t even do water service on a four hour flight. Just disrespectful.

Seats had less pitch than a regional jet. Food was OK. Have to buy alcohol on US based carriers flying international. Boarding was a mess. Did not have bags but overhead space was gone quick. Would like to see the airlines enforce the one bag over and one bag under policy

Lately I like the planes have been exceptionally filthy. There’s lines of dust and dirt all across the ceiling in the vents, and the cracks in between the seats are literally full of food. It’s definitely not the quality of service that I was used to with United. I’m also very disappointed with the Wi-Fi! All I wanna do is knock out a few work jobs while I’m trapped in my seat And it spools so bad. They did provide me with a refund, but the process of getting that refund is so complicated. It’s unfortunate.

Easy boarding. Rows are smaller but that may be an older and bigger me now :)

Check in was rough because the check in crew did not know how to manage my international visa documents. Required a long process and 4 people to finally be able to proceed to security. They told us incorrect information several times before acknowledging we did indeed have everything we needed from the start.

The gate got changed several times and the flight was delayed over an hour. Awful experience

Poor communication ahead of time about flight delays and old planes/other equipment.

Mechanical issue delayed us 2hrs and then once we landed sat on tarmac for 30mins because someone left a vehicle in front of the gaye

The crew was excellent and overall the flight was good. No complaints.

Like all of the flights I took to get down to Dallas. They were delayed

Forced to check bags. Crew uninterested in collecting trash. Unclean seats.

Flight pulled out on time but sat on runway for 30 mins. It was extremely cold in the aircraft despite wearing a winter coat. Surprisingly they had a vegetarian meal but could have some better snack choices for a 8 hour flight.

We had a male flight attendant who was super attentive and wonderful! Very professional. I have both gluten and dairy intolerance, and was only able to get a gluten free part, and not the dairy free part of the meal. Easy to order ahead of time and I appreciate being able to do that.

When I arrived at the airport at 4:00 in the morning, I was notified that I "hadn't paid" for my ticket (I had paid and had a boarding pass). Then I was told that while I had paid, the ticket was $600 more than it actually was, and that I needed to pay that so I could board. None of this was true, of course, but it took 20 minutes, two crew members behind the desk, and one on the phone to clear up.

First off, I had a conversation with a flight attendant that was working this flight. I overheard her telling another flight attendant while we were in line for Chic-Fil-A that the flight was not going to land until 12:47 pm. I found this odd since the flight was to take off at 1:03. I commented to the flight attendant that was going to mess up the on-time take-off She said. if you fly alot you will notice that it's a good thing if the flight even arrives at all. I said that was a low bar. I think that flight attendants represent their airlines whether on board or in the airport ordering food. I was surprised to hear such negativity. However, I have noticed that Spirit flight attendants are usually in a sour mood.. Eventually the flight arrived and I boarded and the flight took off an hour late. There was no direction about the on-board wi-fi. Nor was there any info in the seat back pocket. I don't know if there was wi-fi or not, There were no complimentary snacks or drinks for my row 36 as there was turbulence and the captain asked the flight attendants to stop serving just as they were close to my row. When the turbulence stopped, they did have time to serve us but they did not. Upon arriving, the flight attendant asked anyone not having to catch a flight to Ft. Laudersle which was a tight connection to sit down and let those people pass. I complied but I could not help thinking that if Spirit would have took off on time that they would not have to inconvenience their passengers. All in all, I think Spirit is a mediocre airline at best. There are so many things they could do to improve. Yet, since I only fly Spirit infrequently preferring Southwest and Delta, I like to see if they are improving and sadly no, they are not. One good thing - nice modern seats and interiors.

My flight was cancelled I missed time at work and got a parking ticket

Went as planned. No wifi included and no screens. No free snacks. Didn't buy food so can't rate that. Unable to charge devices on plane. Staff were friendly and flight was fast, cheap and convenient.

I purchased extra legroom so I will be comfortable but the guy behind me is a big guy who keeps on moving and since he is big I can feel his movement at the back of my chair.

Spirit was on time. They maintained updates and information. The crew was friendly and professional. Because this is a budget friendly airline, they have dispensed with a lot of frills and part of that comes with a price, for example, the seats are not quite as comfortable as others. I am ok with a pay for beverage and snack service as I prefer my own anyway so this was not a concern. I thought overall, having a great flight crew and on time service was definitely worth losing some of the frills from other carriers.

Sadly there was a crew member very rude with my kid and with me.

They canceled the flight and didn't assist in getting a new flight on any airline. I had to spend 10 hrs in the airport after getting a ticket On Delta for twice as much. I've flown Spirit many times and this was my worst experience I've had.

Late taking off. ATC sent us circling around Chicago for almost an hour, after landing taxied for 40 minutes.

We had too many delays for the crew not the plane

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

Information on your arrival and departure airports