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$626+ 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 8/29. Fares are subject to change and may not be available on all flights or dates of travel.
SUX — SDF
Jun 10 — Jun 171
Wed 6/10
Wed 6/17
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 May 11, 2026.

This United Airlines deal was found by Cheapflights users on 5/6. 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.
Sat 8/299:03 am
SUX
-
SDF
1 stop6h 48m
United Airlines
Tue 9/13:25 pm
SDF
-
SUX
1 stop9h 21m
United Airlines
Deal found 5/6$626
This United Airlines deal was found by Cheapflights users on 5/6. 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.
Thu 5/217:53 am
SUX
-
SDF
1 stop4h 42m
United Airlines
Mon 5/252:10 pm
SDF
-
SUX
1 stop4h 44m
United Airlines
Deal found 5/6$780

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 May 11, 2026.

Most accurate provider

Expedia
1 star

Most trusted provider

Expedia
3 stars

Round-trip from

$626
(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
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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 May 11, 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 8/29

9:03 am-4:51 pm

1 stop6h 48m

Louisville Intl

Tue 9/1

7:10 am-11:46 pm

2 stops17h 36m

$636
Quickest round-trip

Sioux CityLouisville

SUX - SDF

SUXSDF

Sioux City Sioux Gateway

Thu 5/21

7:53 am-1:35 pm

1 stop4h 42m

Louisville Intl

Mon 5/25

6:15 am-11:44 pm

2 stops18h 29m

$902

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/5

Sorted by cheapest first
  • Most accurate provider: When it comes to deals on Sioux City-Louisville flights, users find the pricing of Expedia to be most consistent on Cheapflights vs. Expedia Users can find the same prices on Sioux City-Louisville flight deals on Cheapflights vs. Expedia <90% 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 Expedia the most. Expedia 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.

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 48m. 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.

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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