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

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 City. 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 City?

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

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 City 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 City?

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 City 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>

$204 CHEAP FLIGHTS from Illinois to Sioux City

SUX

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Cheap Flights from Illinois to Sioux City

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 City

Thu, May 21 - Mon, May 25

4:00 pm - 5:54 pm

ORD

SUX

1h 54mnonstop

7:53 am - 9:45 am

SUX

ORD

1h 52mnonstop

$204United Airlines

Thu, May 14 - Thu, May 21

4:15 pm - 6:06 pm

ORD

SUX

1h 51mnonstop

7:53 am - 9:45 am

SUX

ORD

1h 52mnonstop

$265United Airlines

Thu, Jun 11 - Sun, Jun 14

4:00 pm - 5:54 pm

ORD

SUX

1h 54mnonstop

7:53 am - 9:45 am

SUX

ORD

1h 52mnonstop

$278United Airlines

Thu, Apr 30 - Mon, May 4

4:15 pm - 6:06 pm

ORD

SUX

1h 51mnonstop

12:55 pm - 2:40 pm

SUX

ORD

1h 45mnonstop

$326United Airlines

Wed, May 20 - Sun, May 24

4:15 pm - 6:06 pm

ORD

SUX

1h 51mnonstop

7:53 am - 9:45 am

SUX

ORD

1h 52mnonstop

$355United Airlines

Tue, May 12 - Tue, May 19

12:40 pm - 10:41 am

ORD

SUX

22h 01m

1 stop

12:55 pm - 2:40 pm

SUX

ORD

1h 45mnonstop

$384United Airlines

Thu, May 21 - Mon, May 25

10:55 pm - 11:44 pm

ORD

SUX

24h 49m

1 stop

7:53 am - 9:45 am

SUX

ORD

1h 52mnonstop

$406United Airlines

Mon, Apr 27 - Fri, May 1

4:05 pm - 5:56 pm

ORD

SUX

1h 51mnonstop

12:55 pm - 2:40 pm

SUX

ORD

1h 45mnonstop

$416United Airlines

Wed, May 20 - Sun, May 24

4:15 pm - 6:06 pm

ORD

SUX

1h 51mnonstop

6:30 pm - 9:42 am

SUX

ORD

15h 12m

1 stop

$432United Airlines

Thu, May 14 - Thu, May 21

11:00 pm - 10:41 am

ORD

SUX

11h 41m

1 stop

7:53 am - 9:45 am

SUX

ORD

1h 52mnonstop

$435United Airlines

Useful Info

Low season	August
High season	June
Cheapest flight	$204

Best time to beat the crowds but there is an average 2% increase in price.

Most popular time to fly and prices are also 22% lower on average.

Flight from Chicago to Sioux City

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

Everything you need to know for your flight to Sioux City

Airports

Cabin class

Complete your trip

Direct Flights

Flights to other cities

Origins

Other airports

Return flight deals

Information on the airport you'll fly into in Sioux City

Sioux City (SUX)

SUX

$204 Find Cheap Flights from Illinois to Sioux City

KAYAK searches hundreds of travel sites at once for deals on flights to Sioux City

Cheap Flights from Illinois to Sioux City

Recent round-trip flight deals from Illinois to Sioux City

Recent one-way flight deals from Illinois to Sioux City

Recent last minute flight deals from Illinois to Sioux City

Recent direct flight deals from Illinois to Sioux City

Good to know

FAQs for booking flights from Illinois to Sioux City

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

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 City.

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

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

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 City 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 City?

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

Everything you need to know for your flight to Sioux City

Information on the airport you'll fly into in Sioux City

Cabin class types available on flights to Illinois

Complete your trip to Sioux City with a hotel stay or car rental

Find direct flights for Sioux City

Flights to other popular destinations

Flights from domestic origins to Sioux City

Choose which airport to fly into in Sioux City

Find deals for your return flight