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

Thu, Dec 3 - Mon, Dec 7

6:47 am - 9:22 amORD Chicago O'Hare Intl-SDF Louisville Intl

1h 35mnonstop

1:21 pm - 2:04 pmSDF Louisville Intl-ORD Chicago O'Hare Intl

1h 43mnonstop

$197American Airlines

Fri, Dec 18 - Sat, Jan 9

8:29 am - 11:04 amORD Chicago O'Hare Intl-SDF Louisville Intl

1h 35mnonstop

6:10 am - 6:59 amSDF Louisville Intl-ORD Chicago O'Hare Intl

1h 49mnonstop

$197American Airlines

Sat, Dec 5 - Sat, Dec 12

2:10 pm - 4:39 pmORD Chicago O'Hare Intl-SDF Louisville Intl

1h 29mnonstop

7:10 am - 7:55 amSDF Louisville Intl-ORD Chicago O'Hare Intl

1h 45mnonstop

$197United Airlines

Thu, Dec 3 - Mon, Dec 7

8:15 am - 10:30 amMDW Chicago Midway-SDF Louisville Intl

1h 15mnonstop

7:35 pm - 7:50 pmSDF Louisville Intl-MDW Chicago Midway

1h 15mnonstop

$197Southwest

Wed, Jan 13 - Sun, Jan 31

4:47 pm - 5:58 pmORD Chicago O'Hare Intl-SDF Louisville Intl

24h 11m1 stop Fort Lauderdale

6:48 pm - 4:14 pmSDF Louisville Intl-ORD Chicago O'Hare Intl

22h 26m1 stop Fort Lauderdale

$202Multiple Airlines

Tue, Dec 22 - Thu, Dec 31

10:30 am - 5:34 pmORD Chicago O'Hare Intl-SDF Louisville Intl

6h 04m1 stop Detroit Metropolitan Wayne County

2:20 pm - 8:03 pmSDF Louisville Intl-ORD Chicago O'Hare Intl

6h 43m1 stop Atlanta Hartsfield-Jackson

$217Delta

Tue, Dec 8 - Tue, Dec 15

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

1h 15mnonstop

2:05 pm - 2:25 pmSDF Louisville Intl-MDW Chicago Midway

1h 20mnonstop

$219Southwest

Wed, Dec 9 - Wed, Dec 16

6:59 pm - 9:37 pmORD Chicago O'Hare Intl-SDF Louisville Intl

1h 38mnonstop

6:22 am - 7:09 amSDF Louisville Intl-ORD Chicago O'Hare Intl

1h 47mnonstop

$219American Airlines

Thu, Dec 10 - Tue, Jan 5

9:20 pm - 11:49 pmORD Chicago O'Hare Intl-SDF Louisville Intl

1h 29mnonstop

8:50 am - 9:35 amSDF Louisville Intl-ORD Chicago O'Hare Intl

1h 45mnonstop

$234United Airlines

Fri, Dec 25 - Thu, Jan 7

4:15 pm - 6:47 pmORD Chicago O'Hare Intl-SDF Louisville Intl

1h 32mnonstop

10:20 am - 11:09 amSDF Louisville Intl-ORD Chicago O'Hare Intl

1h 49mnonstop

$259United Airlines

Recent last minute flight deals from Illinois to Louisville

Mon, Nov 16 - Thu, Nov 19

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

1h 32mnonstop

6:00 am - 11:38 amSDF Louisville Intl-ORD Chicago O'Hare Intl

6h 38m1 stop Washington, D.C. Dulles Intl

$535United Airlines

Sat, Nov 14 - Mon, Nov 16

3:35 pm - 5:55 pmMDW Chicago Midway-SDF Louisville Intl

1h 20mnonstop

7:35 pm - 7:50 pmSDF Louisville Intl-MDW Chicago Midway

1h 15mnonstop

$545Southwest

Sat, Nov 14 - Mon, Nov 16

6:59 pm - 9:36 pmORD Chicago O'Hare Intl-SDF Louisville Intl

1h 37mnonstop

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

1h 59mnonstop

$545American Airlines

Fri, Nov 13 - Sat, Nov 14

7:00 pm - 9:37 pmORD Chicago O'Hare Intl-SDF Louisville Intl

1h 37mnonstop

6:27 am - 7:15 amSDF Louisville Intl-ORD Chicago O'Hare Intl

1h 48mnonstop

$545American Airlines

Mon, Nov 16 - Thu, Nov 19

11:05 am - 7:30 pmORD Chicago O'Hare Intl-SDF Louisville Intl

7h 25m1 stop Washington, D.C. Reagan-National

9:55 am - 4:50 pmSDF Louisville Intl-ORD Chicago O'Hare Intl

7h 55m1 stop Washington, D.C. Dulles Intl

$545United Airlines

Thu, Nov 12 - Sat, Nov 14

7:45 am - 10:05 amMDW Chicago Midway-SDF Louisville Intl

1h 20mnonstop

9:10 am - 9:25 amSDF Louisville Intl-MDW Chicago Midway

1h 15mnonstop

$545Southwest

Fri, Nov 13 - Sun, Nov 15

6:40 pm - 9:05 pmMDW Chicago Midway-SDF Louisville Intl

1h 25mnonstop

7:55 pm - 8:10 pmSDF Louisville Intl-MDW Chicago Midway

1h 15mnonstop

$545Southwest

Mon, Nov 16 - Thu, Nov 19

6:10 pm - 8:52 pmORD Chicago O'Hare Intl-SDF Louisville Intl

1h 42mnonstop

5:57 pm - 6:49 pmSDF Louisville Intl-ORD Chicago O'Hare Intl

1h 52mnonstop

$553United Airlines

Wed, Nov 11 - Sun, Nov 15

6:00 am - 11:56 amMDW Chicago Midway-SDF Louisville Intl

4h 56m1 stop Atlanta Hartsfield-Jackson

3:14 pm - 6:04 pmSDF Louisville Intl-MDW Chicago Midway

3h 50m1 stop Detroit Metropolitan Wayne County

$565Delta

Tue, Nov 10 - Sun, Nov 15

9:30 am - 2:24 pmMDW Chicago Midway-SDF Louisville Intl

3h 54m1 stop Detroit Metropolitan Wayne County

6:42 am - 11:50 amSDF Louisville Intl-MDW Chicago Midway

6h 08m1 stop Minneapolis St Paul

$565Delta

Recent direct flight deals from Illinois to Louisville

Thu, Dec 3 - Mon, Dec 7

8:15 am - 10:30 amMDW Chicago Midway-SDF Louisville Intl

1h 15mnonstop

7:35 pm - 7:50 pmSDF Louisville Intl-MDW Chicago Midway

1h 15mnonstop

$197Southwest

Thu, Dec 3 - Mon, Dec 7

6:47 am - 9:22 amORD Chicago O'Hare Intl-SDF Louisville Intl

1h 35mnonstop

1:21 pm - 2:04 pmSDF Louisville Intl-ORD Chicago O'Hare Intl

1h 43mnonstop

$197American Airlines

Sat, Dec 5 - Sat, Dec 12

2:10 pm - 4:39 pmORD Chicago O'Hare Intl-SDF Louisville Intl

1h 29mnonstop

7:10 am - 7:55 amSDF Louisville Intl-ORD Chicago O'Hare Intl

1h 45mnonstop

$197United Airlines

Fri, Dec 18 - Sat, Jan 9

8:29 am - 11:04 amORD Chicago O'Hare Intl-SDF Louisville Intl

1h 35mnonstop

6:10 am - 6:59 amSDF Louisville Intl-ORD Chicago O'Hare Intl

1h 49mnonstop

$197American Airlines

Wed, Dec 9 - Wed, Dec 16

6:59 pm - 9:37 pmORD Chicago O'Hare Intl-SDF Louisville Intl

1h 38mnonstop

6:22 am - 7:09 amSDF Louisville Intl-ORD Chicago O'Hare Intl

1h 47mnonstop

$219American Airlines

Tue, Dec 8 - Tue, Dec 15

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

1h 15mnonstop

2:05 pm - 2:25 pmSDF Louisville Intl-MDW Chicago Midway

1h 20mnonstop

$219Southwest

Tue, Dec 8 - Tue, Dec 15

6:59 pm - 9:37 pmORD Chicago O'Hare Intl-SDF Louisville Intl

1h 38mnonstop

9:58 am - 10:45 amSDF Louisville Intl-ORD Chicago O'Hare Intl

1h 47mnonstop

$219American Airlines

Fri, Jan 1 - Sat, Jan 9

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

1h 15mnonstop

8:35 am - 9:00 amSDF Louisville Intl-MDW Chicago Midway

1h 25mnonstop

$224Southwest

Thu, Dec 10 - Tue, Jan 5

9:20 pm - 11:49 pmORD Chicago O'Hare Intl-SDF Louisville Intl

1h 29mnonstop

8:50 am - 9:35 amSDF Louisville Intl-ORD Chicago O'Hare Intl

1h 45mnonstop

$234United Airlines

Sat, Dec 5 - Mon, Dec 7

7:55 am - 10:15 amMDW Chicago Midway-SDF Louisville Intl

1h 20mnonstop

7:35 pm - 7:50 pmSDF Louisville Intl-MDW Chicago Midway

1h 15mnonstop

$234Southwest

Useful Info

Low season	January
High season	July
Cheapest flight	$99

Best time to beat the crowds with an average 11% drop in price.

Most popular time to fly with an average 4% 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.