How does KAYAK find such low prices on flights from Illinois to Sioux Falls?

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 Sioux Falls.

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

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Sioux Falls 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 Sioux Falls?

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 Sioux Falls 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 Sioux Falls?

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 Sioux Falls from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

$145 CHEAP FLIGHTS from Illinois to Sioux Falls

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Flight Deals

Cheap Flights from Illinois to Sioux Falls

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 Sioux Falls

Wed, Nov 11 - Mon, Nov 16

4:47 pm - 6:48 pmORD Chicago O'Hare Intl-FSD Sioux Falls Joe Foss Field

2h 01mnonstop

3:29 pm - 5:35 pmFSD Sioux Falls Joe Foss Field-ORD Chicago O'Hare Intl

2h 06mnonstop

$279American Airlines

Tue, Nov 17 - Sun, Nov 22

10:38 pm - 12:29 amORD Chicago O'Hare Intl-FSD Sioux Falls Joe Foss Field

1h 51mnonstop

7:36 pm - 9:48 pmFSD Sioux Falls Joe Foss Field-ORD Chicago O'Hare Intl

2h 12mnonstop

$279American Airlines

Thu, Nov 12 - Sat, Nov 14

7:45 pm - 9:37 pmORD Chicago O'Hare Intl-FSD Sioux Falls Joe Foss Field

1h 52mnonstop

11:14 am - 1:09 pmFSD Sioux Falls Joe Foss Field-ORD Chicago O'Hare Intl

1h 55mnonstop

$279United Airlines

Sat, Oct 3 - Mon, Oct 5

9:20 pm - 11:11 pmORD Chicago O'Hare Intl-FSD Sioux Falls Joe Foss Field

1h 51mnonstop

7:50 am - 9:42 amFSD Sioux Falls Joe Foss Field-ORD Chicago O'Hare Intl

1h 52mnonstop

$279United Airlines

Thu, Oct 8 - Sun, Oct 11

9:40 am - 11:34 amORD Chicago O'Hare Intl-FSD Sioux Falls Joe Foss Field

1h 54mnonstop

7:39 pm - 9:40 pmFSD Sioux Falls Joe Foss Field-ORD Chicago O'Hare Intl

2h 01mnonstop

$279American Airlines

Fri, Nov 13 - Sat, Nov 14

7:45 pm - 9:37 pmORD Chicago O'Hare Intl-FSD Sioux Falls Joe Foss Field

1h 52mnonstop

6:40 pm - 8:35 pmFSD Sioux Falls Joe Foss Field-ORD Chicago O'Hare Intl

1h 55mnonstop

$279United Airlines

Sat, Oct 3 - Mon, Oct 5

7:32 pm - 11:26 amORD Chicago O'Hare Intl-FSD Sioux Falls Joe Foss Field

15h 54m1 stop Las Vegas Harry Reid Intl

12:41 pm - 5:38 amFSD Sioux Falls Joe Foss Field-ORD Chicago O'Hare Intl

16h 57m1 stop Las Vegas Harry Reid Intl

$288Multiple Airlines

Thu, Nov 12 - Sat, Nov 14

12:38 pm - 7:06 pmORD Chicago O'Hare Intl-FSD Sioux Falls Joe Foss Field

6h 28m1 stop Minneapolis St Paul

5:00 pm - 9:33 pmFSD Sioux Falls Joe Foss Field-ORD Chicago O'Hare Intl

4h 33m1 stop Minneapolis St Paul

$299Delta

Wed, Nov 11 - Mon, Nov 16

3:47 pm - 7:06 pmORD Chicago O'Hare Intl-FSD Sioux Falls Joe Foss Field

3h 19m1 stop Minneapolis St Paul

5:00 pm - 9:33 pmFSD Sioux Falls Joe Foss Field-ORD Chicago O'Hare Intl

4h 33m1 stop Minneapolis St Paul

$299Delta

Thu, Oct 15 - Thu, Oct 22

2:00 pm - 7:14 pmSTL Lambert-St Louis-FSD Sioux Falls Joe Foss Field

29h 14m2 stops Jonesboro Nashville Intl

11:46 am - 12:35 pmFSD Sioux Falls Joe Foss Field-STL Lambert-St Louis

24h 49m1 stop Las Vegas Harry Reid Intl

$578Multiple Airlines

Recent last minute flight deals from Illinois to Sioux Falls

Fri, Sep 18 - Fri, Sep 25

10:39 pm - 12:29 amORD Chicago O'Hare Intl-FSD Sioux Falls Joe Foss Field

1h 50mnonstop

6:41 pm - 8:59 pmFSD Sioux Falls Joe Foss Field-ORD Chicago O'Hare Intl

2h 18mnonstop

$339American Airlines

Fri, Sep 18 - Fri, Sep 25

4:14 pm - 6:11 pmORD Chicago O'Hare Intl-FSD Sioux Falls Joe Foss Field

1h 57mnonstop

12:56 pm - 8:30 pmFSD Sioux Falls Joe Foss Field-ORD Chicago O'Hare Intl

7h 34m1 stop Dallas/Fort Worth

$349American Airlines

Fri, Sep 18 - Fri, Sep 25

10:39 pm - 12:29 amORD Chicago O'Hare Intl-FSD Sioux Falls Joe Foss Field

1h 50mnonstop

6:41 pm - 8:59 pmFSD Sioux Falls Joe Foss Field-ORD Chicago O'Hare Intl

2h 18mnonstop

$359American Airlines

Fri, Sep 18 - Mon, Sep 21

4:10 pm - 6:06 pmORD Chicago O'Hare Intl-FSD Sioux Falls Joe Foss Field

1h 56mnonstop

6:41 pm - 8:38 pmFSD Sioux Falls Joe Foss Field-ORD Chicago O'Hare Intl

1h 57mnonstop

$369United Airlines

Sat, Sep 19 - Sun, Sep 20

9:20 pm - 11:12 pmORD Chicago O'Hare Intl-FSD Sioux Falls Joe Foss Field

1h 52mnonstop

7:40 am - 9:32 amFSD Sioux Falls Joe Foss Field-ORD Chicago O'Hare Intl

1h 52mnonstop

$389United Airlines

Sat, Sep 19 - Sun, Sep 20

7:13 pm - 10:51 pmMDW Chicago Midway-FSD Sioux Falls Joe Foss Field

3h 38m1 stop Minneapolis St Paul

8:23 am - 1:20 pmFSD Sioux Falls Joe Foss Field-MDW Chicago Midway

4h 57m1 stop Minneapolis St Paul

$409Delta

Sat, Sep 19 - Sun, Sep 20

6:24 pm - 10:51 pmORD Chicago O'Hare Intl-FSD Sioux Falls Joe Foss Field

4h 27m1 stop Minneapolis St Paul

8:23 am - 11:39 amFSD Sioux Falls Joe Foss Field-ORD Chicago O'Hare Intl

3h 16m1 stop Minneapolis St Paul

$409Delta

Wed, Sep 16 - Sun, Sep 20

8:25 am - 12:19 pmORD Chicago O'Hare Intl-FSD Sioux Falls Joe Foss Field

3h 54m1 stop Minneapolis St Paul

8:23 am - 3:05 pmFSD Sioux Falls Joe Foss Field-ORD Chicago O'Hare Intl

6h 42m1 stop Minneapolis St Paul

$444Delta

Fri, Sep 18 - Mon, Sep 21

6:30 am - 8:07 pmORD Chicago O'Hare Intl-FSD Sioux Falls Joe Foss Field

13h 37m1 stop Denver Intl

8:52 pm - 12:23 amFSD Sioux Falls Joe Foss Field-ORD Chicago O'Hare Intl

27h 31m1 stop Denver Intl

$447Frontier

Thu, Sep 17 - Sat, Sep 19

5:51 pm - 11:44 pmORD Chicago O'Hare Intl-FSD Sioux Falls Joe Foss Field

5h 53m1 stop Denver Intl

7:47 am - 9:39 amFSD Sioux Falls Joe Foss Field-ORD Chicago O'Hare Intl

1h 52mnonstop

$509United Airlines

Recent direct flight deals from Illinois to Sioux Falls

Wed, Nov 11 - Mon, Nov 16

4:47 pm - 6:48 pmORD Chicago O'Hare Intl-FSD Sioux Falls Joe Foss Field

2h 01mnonstop

3:29 pm - 5:35 pmFSD Sioux Falls Joe Foss Field-ORD Chicago O'Hare Intl

2h 06mnonstop

$279American Airlines

Tue, Nov 17 - Sun, Nov 22

10:38 pm - 12:29 amORD Chicago O'Hare Intl-FSD Sioux Falls Joe Foss Field

1h 51mnonstop

7:36 pm - 9:48 pmFSD Sioux Falls Joe Foss Field-ORD Chicago O'Hare Intl

2h 12mnonstop

$279American Airlines

Thu, Nov 12 - Sat, Nov 14

7:45 pm - 9:37 pmORD Chicago O'Hare Intl-FSD Sioux Falls Joe Foss Field

1h 52mnonstop

11:14 am - 1:09 pmFSD Sioux Falls Joe Foss Field-ORD Chicago O'Hare Intl

1h 55mnonstop

$279United Airlines

Sat, Oct 3 - Mon, Oct 5

9:20 pm - 11:11 pmORD Chicago O'Hare Intl-FSD Sioux Falls Joe Foss Field

1h 51mnonstop

7:50 am - 9:42 amFSD Sioux Falls Joe Foss Field-ORD Chicago O'Hare Intl

1h 52mnonstop

$279United Airlines

Thu, Oct 8 - Sun, Oct 11

9:40 am - 11:34 amORD Chicago O'Hare Intl-FSD Sioux Falls Joe Foss Field

1h 54mnonstop

7:39 pm - 9:40 pmFSD Sioux Falls Joe Foss Field-ORD Chicago O'Hare Intl

2h 01mnonstop

$279American Airlines

Fri, Oct 2 - Sat, Oct 3

10:39 pm - 12:29 amORD Chicago O'Hare Intl-FSD Sioux Falls Joe Foss Field

1h 50mnonstop

6:41 pm - 8:59 pmFSD Sioux Falls Joe Foss Field-ORD Chicago O'Hare Intl

2h 18mnonstop

$279American Airlines

Fri, Nov 13 - Sun, Nov 15

10:38 pm - 12:29 amORD Chicago O'Hare Intl-FSD Sioux Falls Joe Foss Field

1h 51mnonstop

7:18 pm - 9:30 pmFSD Sioux Falls Joe Foss Field-ORD Chicago O'Hare Intl

2h 12mnonstop

$279American Airlines

Thu, Jan 28 - Sun, Jan 31

10:39 pm - 12:42 amORD Chicago O'Hare Intl-FSD Sioux Falls Joe Foss Field

2h 03mnonstop

3:13 pm - 5:25 pmFSD Sioux Falls Joe Foss Field-ORD Chicago O'Hare Intl

2h 12mnonstop

$279American Airlines

Thu, Dec 17 - Thu, Dec 31

11:45 am - 1:48 pmORD Chicago O'Hare Intl-FSD Sioux Falls Joe Foss Field

2h 03mnonstop

5:00 am - 7:07 amFSD Sioux Falls Joe Foss Field-ORD Chicago O'Hare Intl

2h 07mnonstop

$279American Airlines

Fri, Nov 13 - Sat, Nov 14

7:45 pm - 9:37 pmORD Chicago O'Hare Intl-FSD Sioux Falls Joe Foss Field

1h 52mnonstop

6:40 pm - 8:35 pmFSD Sioux Falls Joe Foss Field-ORD Chicago O'Hare Intl

1h 55mnonstop

$279United Airlines

Useful Info

Low season	January
High season	July
Cheapest flight	$145

Best time to beat the crowds with an average 5% drop in price.

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

Flight from Chicago O'Hare Airport to Sioux Falls

How does KAYAK find such low prices on flights from Illinois to Sioux Falls?
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 Sioux Falls.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Sioux Falls?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Sioux Falls 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 Sioux Falls?
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 Sioux Falls 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 Sioux Falls?
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 Sioux Falls from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.