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$394+ Cheap flights from Sioux City to Louisville (SUX - SDF)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/2. Fares are subject to change and may not be available on all flights or dates of travel.
SUX — SDF
May 10 — May 171
Sun 5/10
Sun 5/17
1 adult, Economy
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Cheap flight deals from Sioux City to Louisville

Cheapest flights from Sioux City to Louisville
Explore the most affordable flight options available from Sioux City to Louisville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 10, 2026.

This United Airlines deal was found by Cheapflights users on 4/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/212:55 pm
SUX
-
SDF
1 stop6h 22m
United Airlines
Wed 5/62:00 pm
SDF
-
SUX
1 stop5h 06m
United Airlines
Deal found 4/9$394
This United Airlines deal was found by Cheapflights users on 4/6. 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.
Tue 4/2112:55 pm
SUX
-
SDF
1 stop6h 21m
United Airlines
Sat 4/251:55 pm
SDF
-
SUX
1 stop5h 01m
United Airlines
Deal found 4/6$441
This United Airlines deal was found by Cheapflights users on 4/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/912:55 pm
SUX
-
SDF
1 stop6h 21m
United Airlines
Sat 4/111:55 pm
SDF
-
SUX
1 stop5h 01m
United Airlines
Deal found 4/8$559
This United Airlines deal was found by Cheapflights users on 4/6. 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.
Fri 4/2412:55 pm
SUX
-
SDF
1 stop6h 21m
United Airlines
Tue 4/281:55 pm
SDF
-
SUX
1 stop5h 01m
United Airlines
Deal found 4/6$597
This United Airlines deal was found by Cheapflights users on 4/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/219:03 am
SUX
-
SDF
1 stop6h 46m
United Airlines
Mon 1/116:00 pm
SDF
-
SUX
1 stop24h 54m
United Airlines
Deal found 4/9$601
This United Airlines deal was found by Cheapflights users on 4/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/1612:55 pm
SUX
-
SDF
1 stop6h 21m
United Airlines
Sat 4/181:55 pm
SDF
-
SUX
1 stop5h 01m
United Airlines
Deal found 4/8$614
This United Airlines deal was found by Cheapflights users on 4/7. 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.
Fri 6/56:30 pm
SUX
-
SDF
1 stop27h 29m
United Airlines
Mon 6/87:37 pm
SDF
-
SUX
2 stops16h 20m
United Airlines
Deal found 4/7$678

Find flight deals from Sioux City to Louisville

Discover tips and strategies to find the most affordable flight options for your journey from Sioux City (SUX) to Louisville (SDF). 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 April 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$394
(United Airlines)
Provider with most accurate pricing for Sioux City Sioux Gateway-Louisville Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Sioux City Sioux Gateway-Louisville Intl flights.
Search Deals
From Sioux City Sioux Gateway to Louisville Intl
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Sioux City to Louisville 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 April 10, 2026.
Use the filters below to find and compare flights from Sioux City to Louisville that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Sioux CityLouisville

SUX - SDF

SUXSDF

Sioux City Sioux Gateway

Sat 5/2

12:55 pm-8:17 pm

1 stop6h 22m

Louisville Intl

Wed 5/6

2:00 pm-6:06 pm

1 stop5h 06m

$394
Quickest round-trip

Sioux CityLouisville

SUX - SDF

SUXSDF

Sioux City Sioux Gateway

Tue 4/21

12:55 pm-8:16 pm

1 stop6h 21m

Louisville Intl

Sat 4/25

1:55 pm-5:56 pm

1 stop5h 01m

$441

Sioux CityLouisville

SUX - SDF

SUXSDF

Sioux City Sioux Gateway

Fri 4/24

12:55 pm-8:16 pm

1 stop6h 21m

Louisville Intl

Tue 4/28

9:15 am-10:46 am

2 stops26h 31m

$642

Sioux CityLouisville

SUX - SDF

SUXSDF

Sioux City Sioux Gateway

Fri 6/5

6:30 pm-1:30 pm

2 stops18h 00m

Louisville Intl

Mon 6/8

7:37 pm-10:57 am

2 stops16h 20m

$683

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/9

Sorted by cheapest first

Compare providers for flights from Sioux City to Louisville

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 Sioux City to Louisville in April.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy1 starTrust Score*3 stars

*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 Sioux City-Louisville flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Sioux City-Louisville flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Sioux City-Louisville flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Sioux City-Louisville 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 Sioux City-Louisville 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 Sioux City to Louisville

Have a flexible travel schedule? Discover the best time to fly to Louisville from Sioux City 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 Sioux City to Louisville

What is the cheapest month to book a flight from Sioux City to Louisville?

Currently, January is the cheapest month in which you can book a flight from Sioux City to Louisville (average of $111). Flying from Sioux City to Louisville in December is currently the most expensive (average of $309). 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.

Related info for your journey

Find useful and relevant information for your journey from Sioux City to Louisville. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Sioux City to Louisville?

    Airlines like United Airlines fly from Sioux City to Louisville in about 6h 22m. The time it takes to get you to your destination can typically vary by up to . There are 631 mi between Sioux City and Louisville.

  • Can I find deals for flights from Sioux City to Louisville that include hotel bookings?

    Yes. In addition to deals on Sioux City to Louisville flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Sioux City to Louisville?

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

  • Can I find deals for business class flights from Sioux City to Louisville?

    Yes. Cheapflights offers flight deals from Sioux City to Louisville 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 Sioux City to Louisville?

    Currently, January is the cheapest month in which you can book a flight from Sioux City to Louisville (average of $111). Flying from Sioux City to Louisville in December is currently the most expensive (average of $309). 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 Louisville?

Book flights to Louisville if you plan to visit one of these locations
Shepherdsville
Elizabethtown
Corydon
Jeffersonville
Bardstown

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