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>

$106 CHEAP FLIGHTS from Illinois to Sioux Falls

FSD

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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

KAYAK's recommended round-trip deals from the most popular airlines that fly from Illinois to Sioux Falls.

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

Choose your dates

3:32 pm - 5:20 pmORD-FSD

1h 48mnonstop

7:23 am - 9:05 amFSD-ORD

1h 42mnonstop

$169American Airlines

Find Deal

Fri, Jun 6 - Sun, Jun 8

9:44 am - 11:36 amORD-FSD

1h 52mnonstop

5:20 pm - 12:59 amFSD-ORD

7h 39m1 stop

$214American Airlines

Find Deal

Fri, Jun 6 - Mon, Jun 9

6:05 pm - 10:56 pmSTL-FSD

4h 51m1 stop

7:59 pm - 11:26 pmFSD-STL

3h 27m1 stop

$214Delta

Find Deal

Fri, May 16 - Sat, May 17

6:00 am - 2:58 pmORD-FSD

8h 58m1 stop

3:58 pm - 11:59 pmFSD-ORD

8h 01m1 stop

$218Frontier

Find Deal

Fri, Jun 6 - Sun, Jun 8

6:00 am - 11:43 amSTL-FSD

5h 43m1 stop

7:35 pm - 11:34 pmFSD-STL

3h 59m1 stop

$239Delta

Find Deal

Thu, Apr 10 - Mon, Apr 14

6:00 am - 2:58 pmORD-FSD

8h 58m1 stop

3:58 pm - 11:59 pmFSD-ORD

8h 01m1 stop

$248Frontier

Find Deal

Thu, Jun 5 - Sun, Jun 8

8:45 am - 10:39 amORD-FSD

1h 54mnonstop

8:00 am - 9:45 amFSD-ORD

1h 45mnonstop

$249United Airlines

Find Deal

Fri, Apr 18 - Sun, Apr 20

4:05 pm - 5:59 pmORD-FSD

1h 54mnonstop

8:00 am - 9:45 amFSD-ORD

1h 45mnonstop

$290United Airlines

Find Deal

Fri, May 9 - Fri, May 16

9:50 am - 7:13 pmSTL-FSD

9h 23m2 stops

8:03 pm - 6:41 pmFSD-STL

22h 38m2 stops

$428

Find Deal

Fri, Jun 6 - Mon, Jun 9

9:50 am - 7:13 pmSTL-FSD

9h 23m2 stops

10:09 pm - 12:10 pmFSD-STL

14h 01m3 stops

$477

Find Deal

Fri, Jun 6 - Mon, Jun 9

Low season	January
High season	July
Cheapest flight	$106

Best time to beat the crowds with an average 10% drop in price.

Most popular time to fly and prices are also 5% 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.