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$69+ Cheap flights from Louisville (SDF) to Illinois

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 1/21. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — ORD
Dec 26 — Jan 21
Thu 12/26
Thu 1/2
1 adult, Economy
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Cheap flight deals from Louisville to Illinois

Discover tips and strategies to find the most affordable flight options for your journey from Louisville (SDF) to Illinois (USIL). 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 December 21, 2024.

Round-trip from

$152
(American Airlines)

One-way from

$69
(American Airlines)
From Louisville Intl to Illinois
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One-way flight from Louisville Intl to Illinois
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Find flight deals from Louisville to Illinois

Cheapest flights from Louisville to Illinois
Explore the most affordable flight options available from Louisville to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 21, 2024.

This Delta deal was found by Cheapflights users on 12/20. 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 12/311:30 pmSDF - ORD
1 stop6h 22mDelta
Sun 1/55:30 pmORD - SDF
1 stop4h 24mDelta
Deal found 12/20$323
This Delta deal was found by Cheapflights users on 12/20. 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 12/316:36 amSDF - MDW
1 stop5h 32mDelta
Sun 1/56:25 pmMDW - SDF
1 stop3h 29mDelta
Deal found 12/20$323
This American Airlines deal was found by Cheapflights users on 12/20. 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 12/3111:16 amSDF - ORD
Nonstop1h 32mAmerican Airlines
Sun 1/54:05 pmORD - SDF
Nonstop1h 27mAmerican Airlines
Deal found 12/20$334
This FlightHub deal was found by Cheapflights users on 12/20. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/306:44 pmSDF - STL
1 stop21h 37mSpirit Airlines
Sun 1/54:27 pmSTL - SDF
1 stop25h 32mSpirit Airlines
Deal found 12/20$385
This Delta deal was found by Cheapflights users on 12/20. 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 12/3111:33 amSDF - STL
1 stop5h 39mDelta
Wed 1/86:05 amSTL - SDF
1 stop13h 49mDelta
Deal found 12/20$387
This United Airlines deal was found by Cheapflights users on 12/20. 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 12/306:00 pmSDF - ORD
Nonstop1h 35mUnited Airlines
Sat 1/117:59 pmORD - SDF
Nonstop1h 31mUnited Airlines
Deal found 12/20$415
This CheapOair deal was found by Cheapflights users on 12/20. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/306:44 pmSDF - ORD
1 stop22h 22mSpirit Airlines
Sat 1/115:11 amORD - SDF
1 stop12h 19mSpirit Airlines
Deal found 12/20$421
This United Airlines deal was found by Cheapflights users on 12/20. 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 12/277:00 amSDF - STL
1 stop4h 47mUnited Airlines
Tue 1/72:55 pmSTL - SDF
1 stop4h 42mUnited Airlines
Deal found 12/20$498
This American Airlines deal was found by Cheapflights users on 12/20. 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.
Mon 12/303:38 pmSDF - STL
2 stops7h 50mAmerican Airlines
Sun 1/55:58 pmSTL - SDF
1 stop5h 36mAmerican Airlines
Deal found 12/20$503
This Southwest deal was found by Cheapflights users on 12/20. 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.
Mon 12/306:00 amSDF - STL
2 stops10h 05mSouthwest
Sun 1/58:10 amSTL - SDF
2 stops8h 25mSouthwest
Deal found 12/20$508
This Southwest deal was found by Cheapflights users on 12/20. 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.
Fri 12/276:40 amSDF - MDW
Nonstop1h 20mSouthwest
Sun 12/299:35 amMDW - SDF
Nonstop1h 15mSouthwest
Deal found 12/20$544
This Mytrip deal was found by Cheapflights users on 12/20. 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 12/305:33 pmSDF - ORD
2 stops15h 14mMultiple Airlines
Sat 1/1110:29 amORD - SDF
3 stops31h 01mMultiple Airlines
Deal found 12/20$634

Find flights from Louisville to Illinois within your budget

Customize your flight search to find flights from Louisville to Illinois 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 December 21, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

LouisvilleChicago

SDF - ORD

SDFORD

Louisville Intl

Mon 1/6

6:37 am-7:18 am

Nonstop1h 41m

Chicago O'Hare Intl

Tue 1/7

5:55 pm-8:18 pm

Nonstop1h 23m

$152

LouisvilleChicago

SDF - MDW

SDFMDW

Louisville Intl

Thu 1/16

7:05 am-7:20 am

Nonstop1h 15m

Chicago Midway

Mon 1/20

7:35 pm-9:50 pm

Nonstop1h 15m

$168

LouisvilleChicago

SDF - ORD

SDFORD

Louisville Intl

Mon 1/6

4:39 pm-9:58 pm

1 stop6h 19m

Chicago O'Hare Intl

Tue 1/7

10:30 am-5:38 pm

1 stop6h 08m

$181

LouisvilleChicago

SDF - MDW

SDFMDW

Louisville Intl

Mon 1/13

1:25 pm-6:14 pm

1 stop5h 49m

Chicago Midway

Wed 1/15

2:08 pm-9:43 pm

1 stop6h 35m

$181

LouisvilleChicago

SDF - ORD

SDFORD

Louisville Intl

Fri 1/10

7:00 am-7:45 am

Nonstop1h 45m

Chicago O'Hare Intl

Sun 1/12

7:59 pm-10:30 pm

Nonstop1h 31m

$227

LouisvilleMoline

SDF - MLI

SDFMLI

Louisville Intl

Wed 1/15

5:01 pm-10:38 pm

1 stop6h 37m

Moline Quad-City

Tue 1/21

5:05 pm-11:59 pm

1 stop5h 54m

$228

LouisvilleMoline

SDF - MLI

SDFMLI

Louisville Intl

Wed 1/15

12:19 pm-9:58 pm

2 stops10h 39m

Moline Quad-City

Tue 1/21

12:55 pm-5:19 pm

1 stop3h 24m

$233

LouisvilleChicago

SDF - ORD

SDFORD

Louisville Intl

Sun 1/12

4:20 pm-9:30 pm

1 stop6h 10m

Chicago O'Hare Intl

Wed 1/15

7:00 am-12:55 pm

1 stop4h 55m

$270

LouisvilleChicago

SDF - ORD

SDFORD

Louisville Intl

Fri 1/17

7:25 pm-11:20 am

2 stops16h 55m

Chicago O'Hare Intl

Fri 1/24

5:11 am-6:30 pm

1 stop12h 19m

$277

LouisvilleChicago

SDF - ORD

SDFORD

Louisville Intl

Fri 1/17

5:34 pm-11:32 pm

1 stop6h 58m

Chicago O'Hare Intl

Fri 1/24

8:30 am-6:30 pm

1 stop9h 00m

$298

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/21

Showing 1-10 of 26 results
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Best time to book a flight from Louisville to Illinois

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

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

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

Currently, August is the cheapest month in which you can book a flight from Louisville to Illinois (average of $245). Flying from Louisville to Illinois in March is currently the most expensive (average of $317). 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 SDF to IL?

Find hourly flight availability from Louisville to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 21, 2024.

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

Weekly flight availability from Louisville to Illinois

Explore weekly flight availability from Louisville to Illinois. 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 December 21, 2024.

The most flights from SDF to USIL are scheduled on a Saturday (34 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (17 on average).

Rainfall in Illinois by month

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

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

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

If weather is an important factor for your trip to Illinois, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated December 21, 2024.
Get a feel of what it's like to fly with United Airlines, Southwest and Spirit Airlines from Louisville to Illinois by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,814 reviews

Overall

8.1

Crew

8.7

Entertainment

7.7

Food

7.2

Boarding

8.2

Comfort

8.1

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
4,814 reviews
Southwest
8.1
Very good
4,814 reviews

Overall

8.1

Crew

8.7

Entertainment

7.7

Food

7.2

Boarding

8.2

Comfort

8.1

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
8,597 reviews
Southwest
8.1
Very good
4,814 reviews

Overall

8.1

Crew

8.7

Entertainment

7.7

Food

7.2

Boarding

8.2

Comfort

8.1

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
9,035 reviews
Southwest
8.1
Very good
4,814 reviews

Overall

8.1

Crew

8.7

Entertainment

7.7

Food

7.2

Boarding

8.2

Comfort

8.1

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
4,814 reviews

Overall

8.1

Crew

8.7

Entertainment

7.7

Food

7.2

Boarding

8.2

Comfort

8.1

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
8,112 reviews
Southwest
8.1
Very good
4,814 reviews

Overall

8.1

Crew

8.7

Entertainment

7.7

Food

7.2

Boarding

8.2

Comfort

8.1

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 Louisville to Illinois. 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 from for flights from Louisville to Illinois?

    Most people fly from Louisville Intl (SDF) if they book a flight from Louisville to Illinois. Louisville Intl is conveniently located just 5.3 mi from Louisville’s city center.

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

    For one-way options, check prices for American Airlines. According to our data, you can fly for as low as $69. Users have also found prices from $69 and $84 on Southwest and United Airlines, respectively.

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

    While some choose either Louisville Intl - Chicago Midway or Louisville Intl - Lambert-St Louis, Louisville Intl - Chicago O'Hare Intl is the most popular route from Louisville to Illinois.

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

    No one likes to see their flight delayed. When booking a flight from Louisville to Illinois consider choosing Envoy Air (95%), Iberia (94%) or Qatar Airways (94%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Louisville to Illinois?

    Looking at all options, your cheapest flight can be booked for $137. While the most popular route (Louisville Intl - Chicago O'Hare Intl) can be booked for $225 on average our data indicates $1,344 when flying from Louisville to Illinois.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Louisville to Illinois (average of $245). Flying from Louisville to Illinois in March is currently the most expensive (average of $317). 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.

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Alternative routes for Louisville to Illinois

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Top 4 airlines flying from Louisville to Illinois

Discover the top 4 airlines that operate flights from Louisville to Illinois. 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 December 21, 2024.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$111Average$260FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$114Average$286FlexibilityNo cancel feeOn-time71%
DeltaCheapest$135Average$286FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$156Average$282FlexibilityNo cancel feeOn-time63%
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