How does KAYAK find such low prices on flights from Illinois 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 Illinois to Louisville.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Louisville?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Louisville from Illinois 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 Illinois 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 Illinois with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois 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 Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

$99 CHEAP FLIGHTS from Illinois to Louisville

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Flight Deals

Cheap Flights from Illinois to Louisville

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Direct

Recent round-trip flight deals from Illinois to Louisville

Tue, Nov 10 - Thu, Nov 12

1:20 pm - 3:35 pmMDW Chicago Midway-SDF Louisville Intl

1h 15mnonstop

8:45 am - 9:00 amSDF Louisville Intl-MDW Chicago Midway

1h 15mnonstop

$197Southwest

Mon, Oct 19 - Thu, Oct 22

6:55 pm - 9:10 pmMDW Chicago Midway-SDF Louisville Intl

1h 15mnonstop

7:50 pm - 8:05 pmSDF Louisville Intl-MDW Chicago Midway

1h 15mnonstop

$197Southwest

Tue, Oct 13 - Sat, Oct 17

6:59 am - 9:32 amORD Chicago O'Hare Intl-SDF Louisville Intl

1h 33mnonstop

12:46 pm - 1:30 pmSDF Louisville Intl-ORD Chicago O'Hare Intl

1h 44mnonstop

$197American Airlines

Tue, Dec 22 - Thu, Dec 31

3:10 pm - 5:40 pmORD Chicago O'Hare Intl-SDF Louisville Intl

1h 30mnonstop

6:47 pm - 7:50 pmSDF Louisville Intl-ORD Chicago O'Hare Intl

2h 03mnonstop

$197American Airlines

Mon, Oct 5 - Wed, Oct 7

6:55 am - 9:34 amORD Chicago O'Hare Intl-SDF Louisville Intl

1h 39mnonstop

9:04 am - 9:45 amSDF Louisville Intl-ORD Chicago O'Hare Intl

1h 41mnonstop

$197United Airlines

Thu, Oct 22 - Sat, Oct 24

6:55 am - 9:34 amORD Chicago O'Hare Intl-SDF Louisville Intl

1h 39mnonstop

9:04 am - 9:45 amSDF Louisville Intl-ORD Chicago O'Hare Intl

1h 41mnonstop

$197United Airlines

Tue, Oct 13 - Sat, Oct 17

7:50 am - 10:05 amMDW Chicago Midway-SDF Louisville Intl

1h 15mnonstop

5:05 pm - 5:25 pmSDF Louisville Intl-MDW Chicago Midway

1h 20mnonstop

$197Southwest

Wed, Oct 28 - Wed, Oct 28

6:59 am - 9:32 amORD Chicago O'Hare Intl-SDF Louisville Intl

1h 33mnonstop

5:35 pm - 6:30 pmSDF Louisville Intl-ORD Chicago O'Hare Intl

1h 55mnonstop

$197American Airlines

Wed, Oct 14 - Sat, Oct 17

6:04 am - 12:54 pmMDW Chicago Midway-SDF Louisville Intl

5h 50m1 stop Atlanta Hartsfield-Jackson

5:59 pm - 10:33 pmSDF Louisville Intl-MDW Chicago Midway

5h 34m1 stop Atlanta Hartsfield-Jackson

$217Delta

Sat, Oct 24 - Sat, Oct 31

1:23 pm - 9:38 pmORD Chicago O'Hare Intl-SDF Louisville Intl

7h 15m1 stop Atlanta Hartsfield-Jackson

1:59 pm - 8:38 pmSDF Louisville Intl-ORD Chicago O'Hare Intl

7h 39m1 stop Atlanta Hartsfield-Jackson

$217Delta

Recent last minute flight deals from Illinois to Louisville

Thu, Sep 10 - Sun, Sep 13

11:19 am - 5:11 pmMLI Moline Quad-City-SDF Louisville Intl

4h 52m1 stop Atlanta Hartsfield-Jackson

6:00 am - 10:13 amSDF Louisville Intl-MLI Moline Quad-City

5h 13m1 stop Atlanta Hartsfield-Jackson

$399Delta

Thu, Sep 10 - Sun, Sep 13

5:16 pm - 11:59 pmMLI Moline Quad-City-SDF Louisville Intl

5h 43m1 stop Atlanta Hartsfield-Jackson

6:00 am - 10:13 amSDF Louisville Intl-MLI Moline Quad-City

5h 13m1 stop Atlanta Hartsfield-Jackson

$399Delta

Thu, Sep 10 - Sun, Sep 13

5:16 pm - 11:59 pmMLI Moline Quad-City-SDF Louisville Intl

5h 43m1 stop Atlanta Hartsfield-Jackson

6:00 am - 10:13 amSDF Louisville Intl-MLI Moline Quad-City

5h 13m1 stop Atlanta Hartsfield-Jackson

$409Delta

Mon, Sep 14 - Thu, Sep 17

7:15 am - 9:54 amORD Chicago O'Hare Intl-SDF Louisville Intl

1h 39mnonstop

9:00 am - 9:41 amSDF Louisville Intl-ORD Chicago O'Hare Intl

1h 41mnonstop

$445United Airlines

Mon, Sep 14 - Thu, Sep 17

2:30 pm - 8:09 pmORD Chicago O'Hare Intl-SDF Louisville Intl

4h 39m1 stop Washington, D.C. Dulles Intl

7:10 am - 7:50 amSDF Louisville Intl-ORD Chicago O'Hare Intl

1h 40mnonstop

$455United Airlines

Mon, Sep 14 - Thu, Sep 17

7:09 am - 9:43 amORD Chicago O'Hare Intl-SDF Louisville Intl

1h 34mnonstop

7:11 am - 8:00 amSDF Louisville Intl-ORD Chicago O'Hare Intl

1h 49mnonstop

$456American Airlines

Mon, Sep 14 - Thu, Sep 17

2:30 pm - 8:09 pmORD Chicago O'Hare Intl-SDF Louisville Intl

4h 39m1 stop Washington, D.C. Dulles Intl

6:00 am - 9:38 amSDF Louisville Intl-ORD Chicago O'Hare Intl

4h 38m1 stop Washington, D.C. Dulles Intl

$465United Airlines

Mon, Sep 14 - Thu, Sep 17

4:45 pm - 11:22 pmORD Chicago O'Hare Intl-SDF Louisville Intl

5h 37m1 stop Charlotte Douglas

6:18 am - 10:45 amSDF Louisville Intl-ORD Chicago O'Hare Intl

5h 27m1 stop Charlotte Douglas

$476American Airlines

Wed, Sep 9 - Wed, Sep 16

1:00 pm - 3:15 pmMDW Chicago Midway-SDF Louisville Intl

1h 15mnonstop

1:15 pm - 1:30 pmSDF Louisville Intl-MDW Chicago Midway

1h 15mnonstop

$521Southwest

Sat, Sep 12 - Tue, Sep 15

7:50 am - 10:10 amMDW Chicago Midway-SDF Louisville Intl

1h 20mnonstop

1:15 pm - 1:30 pmSDF Louisville Intl-MDW Chicago Midway

1h 15mnonstop

$521Southwest

Recent direct flight deals from Illinois to Louisville

Tue, Oct 13 - Sat, Oct 17

6:59 am - 9:32 amORD Chicago O'Hare Intl-SDF Louisville Intl

1h 33mnonstop

12:46 pm - 1:30 pmSDF Louisville Intl-ORD Chicago O'Hare Intl

1h 44mnonstop

$197American Airlines

Tue, Dec 22 - Thu, Dec 31

3:10 pm - 5:40 pmORD Chicago O'Hare Intl-SDF Louisville Intl

1h 30mnonstop

6:47 pm - 7:50 pmSDF Louisville Intl-ORD Chicago O'Hare Intl

2h 03mnonstop

$197American Airlines

Mon, Oct 5 - Wed, Oct 7

6:55 am - 9:34 amORD Chicago O'Hare Intl-SDF Louisville Intl

1h 39mnonstop

9:04 am - 9:45 amSDF Louisville Intl-ORD Chicago O'Hare Intl

1h 41mnonstop

$197United Airlines

Thu, Oct 22 - Sat, Oct 24

6:55 am - 9:34 amORD Chicago O'Hare Intl-SDF Louisville Intl

1h 39mnonstop

9:04 am - 9:45 amSDF Louisville Intl-ORD Chicago O'Hare Intl

1h 41mnonstop

$197United Airlines

Tue, Oct 13 - Sat, Oct 17

7:50 am - 10:05 amMDW Chicago Midway-SDF Louisville Intl

1h 15mnonstop

5:05 pm - 5:25 pmSDF Louisville Intl-MDW Chicago Midway

1h 20mnonstop

$197Southwest

Tue, Nov 10 - Thu, Nov 12

1:20 pm - 3:35 pmMDW Chicago Midway-SDF Louisville Intl

1h 15mnonstop

8:45 am - 9:00 amSDF Louisville Intl-MDW Chicago Midway

1h 15mnonstop

$197Southwest

Wed, Oct 28 - Wed, Oct 28

6:59 am - 9:32 amORD Chicago O'Hare Intl-SDF Louisville Intl

1h 33mnonstop

5:35 pm - 6:30 pmSDF Louisville Intl-ORD Chicago O'Hare Intl

1h 55mnonstop

$197American Airlines

Mon, Nov 2 - Thu, Nov 5

10:11 am - 12:43 pmORD Chicago O'Hare Intl-SDF Louisville Intl

1h 32mnonstop

6:31 pm - 7:30 pmSDF Louisville Intl-ORD Chicago O'Hare Intl

1h 59mnonstop

$197American Airlines

Tue, Nov 10 - Thu, Nov 12

4:00 pm - 6:32 pmORD Chicago O'Hare Intl-SDF Louisville Intl

1h 32mnonstop

10:27 am - 11:12 amSDF Louisville Intl-ORD Chicago O'Hare Intl

1h 45mnonstop

$197United Airlines

Thu, Oct 1 - Mon, Oct 5

7:55 am - 10:10 amMDW Chicago Midway-SDF Louisville Intl

1h 15mnonstop

7:50 pm - 8:05 pmSDF Louisville Intl-MDW Chicago Midway

1h 15mnonstop

$197Southwest

Useful Info

Low season	January
High season	July
Cheapest flight	$99

Best time to beat the crowds with an average 6% drop in price.

Most popular time to fly with an average 7% increase in price.

Flight from Chicago O'Hare Airport to Louisville

How does KAYAK find such low prices on flights from Illinois 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 Illinois to Louisville.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Louisville?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Louisville from Illinois 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 Illinois 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 Illinois with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois 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 Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.