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$89+ Cheap flights from Illinois to Louisville (SDF)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/4. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SDF
Jan 22 — Jan 291
Wed 1/22
Wed 1/29
1 adult, Economy
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Cheap flight deals from Illinois to Louisville

Discover tips and strategies to find the most affordable flight options for your journey from Illinois (USIL) 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 January 17, 2025.

Round-trip from

$209
(Mytrip)

One-way from

$93
(Mytrip)
From Illinois to Louisville Intl
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One-way flight from Illinois to Louisville Intl
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Find flight deals from Illinois to Louisville

Cheapest flights from Illinois to Louisville
Explore the most affordable flight options available from Illinois to Louisville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 17, 2025.

This Delta deal was found by Cheapflights users on 1/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/48:00 amORD - SDF
1 stop6h 55mDelta
Tue 2/1110:29 amSDF - ORD
1 stop4h 14mDelta
Deal found 1/14$177
This Mytrip deal was found by Cheapflights users on 1/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/247:10 amORD - SDF
1 stop12h 15mSpirit Airlines
Thu 2/277:28 pmSDF - ORD
1 stop16h 12mSpirit Airlines
Deal found 1/15$188
This United Airlines deal was found by Cheapflights users on 1/14. 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 2/46:05 pmORD - SDF
Nonstop1h 32mUnited Airlines
Tue 2/115:50 pmSDF - ORD
Nonstop1h 37mUnited Airlines
Deal found 1/14$197
This American Airlines deal was found by Cheapflights users on 1/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/265:55 pmORD - SDF
Nonstop1h 19mAmerican Airlines
Fri 2/286:40 amSDF - ORD
Nonstop1h 30mAmerican Airlines
Deal found 1/15$206
This Southwest deal was found by Cheapflights users on 1/16. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/1510:25 amMDW - SDF
Nonstop1h 15mSouthwest
Mon 2/178:55 pmSDF - MDW
Nonstop1h 15mSouthwest
Deal found 1/16$216
This Mytrip deal was found by Cheapflights users on 1/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/67:51 amORD - SDF
1 stop11h 57mMultiple Airlines
Mon 3/107:03 pmSDF - ORD
1 stop15h 26mMultiple Airlines
Deal found 1/15$226
This Delta deal was found by Cheapflights users on 1/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/75:05 pmMLI - SDF
1 stop5h 53mDelta
Sun 2/95:01 pmSDF - MLI
1 stop6h 37mDelta
Deal found 1/16$229
This Delta deal was found by Cheapflights users on 1/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/1210:57 amMDW - SDF
1 stop3h 58mDelta
Thu 2/137:05 amSDF - MDW
1 stop4h 07mDelta
Deal found 1/16$236
This American Airlines deal was found by Cheapflights users on 1/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/1112:55 pmMLI - SDF
2 stops10h 40mAmerican Airlines
Sun 2/167:11 pmSDF - MLI
1 stop3h 49mAmerican Airlines
Deal found 1/15$244
This Southwest deal was found by Cheapflights users on 1/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/207:30 amORD - SDF
1 stop8h 30mSouthwest
Thu 4/246:15 amSDF - ORD
1 stop6h 35mSouthwest
Deal found 1/15$266
This United Airlines deal was found by Cheapflights users on 1/15. 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 2/145:36 pmSTL - SDF
1 stop3h 50mUnited Airlines
Fri 2/215:54 pmSDF - STL
1 stop4h 52mUnited Airlines
Deal found 1/15$355
This American Airlines deal was found by Cheapflights users on 1/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/146:25 pmSTL - SDF
1 stop5h 13mAmerican Airlines
Fri 2/2112:11 pmSDF - STL
2 stops6h 54mAmerican Airlines
Deal found 1/15$360

Find flights from Illinois to Louisville within your budget

Customize your flight search to find flights from Illinois 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 January 17, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

ChicagoLouisville

MDW - SDF

MDWSDF

Chicago Midway

Tue 2/4

3:55 pm-10:00 pm

1 stop5h 05m

Louisville Intl

Tue 2/11

7:20 am-7:45 am

Nonstop1h 25m

$147

ChicagoLouisville

ORD - SDF

ORDSDF

Chicago O'Hare Intl

Tue 2/4

8:00 am-3:55 pm

1 stop6h 55m

Louisville Intl

Tue 2/11

10:29 am-1:43 pm

1 stop4h 14m

$177

ChicagoLouisville

MDW - SDF

MDWSDF

Chicago Midway

Tue 2/4

10:57 am-5:43 pm

1 stop5h 46m

Louisville Intl

Tue 2/11

10:29 am-4:20 pm

1 stop6h 51m

$177

ChicagoLouisville

ORD - SDF

ORDSDF

Chicago O'Hare Intl

Mon 2/24

7:10 am-8:25 pm

1 stop12h 15m

Louisville Intl

Thu 2/27

7:28 pm-10:40 am

1 stop16h 12m

$188

ChicagoLouisville

ORD - SDF

ORDSDF

Chicago O'Hare Intl

Tue 2/4

6:05 pm-8:37 pm

Nonstop1h 32m

Louisville Intl

Tue 2/11

5:50 pm-6:27 pm

Nonstop1h 37m

$197

ChicagoLouisville

ORD - SDF

ORDSDF

Chicago O'Hare Intl

Wed 2/26

5:55 pm-8:14 pm

Nonstop1h 19m

Louisville Intl

Fri 2/28

6:40 am-7:10 am

Nonstop1h 30m

$206

St. LouisLouisville

STL - SDF

STLSDF

Lambert-St Louis

Thu 2/6

4:28 pm-6:30 pm

1 stop25h 02m

Louisville Intl

Sat 2/8

7:25 pm-2:43 pm

1 stop20h 18m

$225

ChicagoLouisville

ORD - SDF

ORDSDF

Chicago O'Hare Intl

Thu 3/6

7:51 am-8:48 pm

1 stop11h 57m

Louisville Intl

Mon 3/10

7:03 pm-9:29 am

1 stop15h 26m

$226

MolineLouisville

MLI - SDF

MLISDF

Moline Quad-City

Fri 2/7

5:05 pm-11:58 pm

1 stop5h 53m

Louisville Intl

Sun 2/9

5:01 pm-10:38 pm

1 stop6h 37m

$229

MolineLouisville

MLI - SDF

MLISDF

Moline Quad-City

Tue 2/11

12:55 pm-12:35 am

2 stops10h 40m

Louisville Intl

Sun 2/16

7:11 pm-10:00 pm

1 stop3h 49m

$244

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/15

Showing 1-10 of 32 results
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Best time to book a flight from Illinois to Louisville

Have a flexible travel schedule? Discover the best time to fly to Louisville from Illinois 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.

Travel insights for flights from Illinois to Louisville

Get recent, data-driven insights about flights from Illinois to Louisville including ideal travel times, pricing trends, and more.

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

Currently, January is the cheapest month in which you can book a flight from Illinois to Louisville (average of $299). Flying from Illinois to Louisville in April is currently the most expensive (average of $369). 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.

What is the cheapest time of day to fly from IL to SDF?

Find hourly flight availability from Illinois to Louisville. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 17, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Louisville as you normally would.

Weekly flight availability from Illinois to Louisville

Explore weekly flight availability from Illinois to Louisville. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated January 17, 2025.

The most flights from USIL to SDF are scheduled on a Friday (28 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (21 on average).

Rainfall in Louisville by month

Plan your trip to Louisville by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Louisville ranges from 3.1 - 5.3 inches per month. May is typically the wettest month, when rainfall can reach 5.3 in. September is typically the driest time to visit Louisville when rainfall is around 3.1 in.

Temperature in Louisville by month

Plan your trip to Louisville by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Louisville, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing Louisville

Get insights into the airlines that provide service to Louisville. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Louisville. Reviews last updated January 17, 2025.
See what other customers who have flown with United Airlines, Southwest and Spirit Airlines from Illinois to Louisville have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,659 reviews

Boarding

8.2

Crew

8.7

Overall

8.1

Comfort

8.1

Entertainment

7.7

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,659 reviews
Southwest
8.1
Very good
4,659 reviews

Boarding

8.2

Crew

8.7

Overall

8.1

Comfort

8.1

Entertainment

7.7

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,511 reviews
Southwest
8.1
Very good
4,659 reviews

Boarding

8.2

Crew

8.7

Overall

8.1

Comfort

8.1

Entertainment

7.7

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
8,964 reviews
Southwest
8.1
Very good
4,659 reviews

Boarding

8.2

Crew

8.7

Overall

8.1

Comfort

8.1

Entertainment

7.7

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,659 reviews

Boarding

8.2

Crew

8.7

Overall

8.1

Comfort

8.1

Entertainment

7.7

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Spirit Airlines
6.3
Okay
8,100 reviews
Southwest
8.1
Very good
4,659 reviews

Boarding

8.2

Crew

8.7

Overall

8.1

Comfort

8.1

Entertainment

7.7

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Related info for your journey

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

  • What airport do you fly into for flights to Louisville from Illinois?

    Louisville Intl (SDF), located 5.3 mi from the city center, is the airport you fly into when you book flights from Illinois to Louisville.

  • What are the cheapest airlines to fly from Illinois to Louisville one-way?

    $93 is the cheapest one-way deal found within the past few days, from Spirit Airlines. You may also be able to find cheap deals on United Airlines and Southwest, with prices starting from $108 and $108, respectively.

  • What are the most popular routes from Illinois to Louisville?

    The most popular flight routes from Illinois to Louisville are Chicago O'Hare Intl - Louisville Intl, Chicago Midway - Louisville Intl and Lambert-St Louis - Louisville Intl.

  • What are the most reliable airlines from Illinois to Louisville?

    Before booking your flight to Louisville from Illinois, check out the most reliable airlines to get you to your destination on time: Envoy Air (92%), Iberia (91%), Qatar Airways( 90%).

  • What are the cheapest flights from Illinois to Louisville?

    Looking for the cheapest flight from Illinois to Louisville? While on average our users pay $273, our data indicates the cheapest price to be $98. The most popular route (Chicago O'Hare Intl - Louisville Intl), is priced around $177.

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

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

  • How can I find direct flights from Illinois to Louisville?

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

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

    Yes. Cheapflights offers flight deals from Illinois 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 Illinois to Louisville?

    Currently, January is the cheapest month in which you can book a flight from Illinois to Louisville (average of $299). Flying from Illinois to Louisville in April is currently the most expensive (average of $369). 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 Illinois?

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

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Alternative routes for Illinois to Louisville

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Illinois to Louisville

Discover the top 3 airlines that operate flights from Illinois to Louisville. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$105Average$311FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$117Average$291FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$118Average$532FlexibilityNo cancel feeOn-time63%
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