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. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

$50 CHEAP FLIGHTS from Illinois to Sioux Falls

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Cheap Flight Deals from Illinois to Sioux Falls

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Illinois to Sioux Falls that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Round-trip

One-way

Last minute

Direct

Recent round-trip flight deals from Illinois to Sioux Falls

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Illinois to Sioux Falls.

Discover the best prices and deals for you by selecting your travel dates.

Choose your dates

6:45 am - 1:52 pmORD-FSD

7h 07m1 stop

2:35 pm - 12:44 amFSD-ORD

10h 09m1 stop

$125Frontier

Find Deal

Wed, Mar 12 - Mon, Mar 17

1:49 pm - 3:29 pmORD-FSD

1h 40mnonstop

12:23 pm - 2:06 pmFSD-ORD

1h 43mnonstop

$189American Airlines

Find Deal

Fri, Feb 28 - Sun, Mar 2

1:49 pm - 3:29 pmORD-FSD

1h 40mnonstop

5:28 am - 7:15 amFSD-ORD

1h 47mnonstop

$191American Airlines

Find Deal

Fri, Feb 28 - Sun, Mar 2

8:20 pm - 10:15 pmORD-FSD

1h 55mnonstop

6:38 pm - 8:25 pmFSD-ORD

1h 47mnonstop

$199United Airlines

Find Deal

Fri, Feb 21 - Sun, Feb 23

10:18 am - 2:33 pmSTL-FSD

4h 15m1 stop

8:05 am - 2:39 pmFSD-STL

6h 34m1 stop

$199United Airlines

Find Deal

Wed, Feb 19 - Sat, Feb 22

8:20 pm - 10:15 pmORD-FSD

1h 55mnonstop

6:38 pm - 8:20 pmFSD-ORD

1h 42mnonstop

$208United Airlines

Find Deal

Sat, Mar 8 - Fri, Mar 14

6:15 am - 12:34 pmORD-FSD

6h 19m1 stop

5:05 am - 11:30 amFSD-ORD

6h 25m1 stop

$209Delta

Find Deal

Fri, Feb 28 - Sun, Mar 2

1:26 pm - 6:16 pmMDW-FSD

4h 50m1 stop

1:18 pm - 5:43 pmFSD-MDW

4h 25m1 stop

$209Delta

Find Deal

Fri, Feb 28 - Sun, Mar 2

6:15 am - 12:34 pmORD-FSD

6h 19m1 stop

11:00 am - 6:25 pmFSD-ORD

7h 25m2 stops

$214Delta

Find Deal

Fri, Feb 28 - Sun, Mar 2

1:26 pm - 6:16 pmMDW-FSD

4h 50m1 stop

11:00 am - 6:11 pmFSD-MDW

7h 11m2 stops

$214Delta

Find Deal

Fri, Feb 28 - Sun, Mar 2

Low season	January
High season	July
Cheapest flight	$50

Best time to beat the crowds with an average 1% drop in price.

Most popular time to fly and prices are also 4% lower on average.

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.