How long is the flight from Illinois to South Dakota?

The flight from Illinois to South Dakota depends on which airports you’re departing and arriving from and whether or not you have a layover. If you fly from Chicago (a popular airport in Illinois) to Sioux Falls (the most popular airport in South Dakota), then the flight time is 2h 47m on average. If you fly from Moline (another popular airport in Illinois) to Sioux Falls, then the average flight time is 6h 05m.

How many flights depart from Illinois to South Dakota on average per week?

As of April 2026, 157 flights take off from Illinois and land in South Dakota each week. The most common flight departure day for this route is Thu, with 17% of weekly flights taking off on this day.

What airlines fly to South Dakota?

American Airlines, United Airlines and Delta are the top three most popular airlines that fly to South Dakota from Illinois according to our data. American Airlines is the first choice among our users, with 57% of people opting to fly with this airline when traveling to South Dakota. Keep in mind that there are 3 different airlines that fly to South Dakota on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Illinois to South Dakota?

United Airlines, Delta, and Frontier are the most popular carriers operating from Illinois to South Dakota

How many flights depart from Illinois to South Dakota on average per day?

As of April 2026, 22 flights take off from Illinois and land in South Dakota each day. The most common flight departure time for this route is 9:00PM, with 43% of daily flights taking off in the evening.

When did momondo last update prices for flights from Illinois to South Dakota?

Prices for flights from Illinois to South Dakota were last updated today.

How many operators does momondo search for flights from Illinois to South Dakota?

As of April 2026, there are 3 operators available to choose from for flights from Illinois to South Dakota.

How old do you have to be to fly from Illinois to South Dakota?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Illinois to South Dakota.

What documentation or ID do you need to fly to South Dakota?

The travel and health documents you'll need for your trip to South Dakota may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at South Dakota. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$99 Cheap Flights from Illinois to South Dakota in 2026

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Find the cheapest flights from Illinois to South Dakota

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

2:58 pm - 9:31 pm

ORD

RAP

7h 33m

1 stop

4:55 pm - 12:31 am

RAP

ORD

6h 36m

1 stop

$211American Airlines

Sat, Jul 11 - Wed, Jul 15

8:45 am - 10:24 am

ORD

RAP

2h 39mnonstop

6:00 am - 9:34 am

RAP

ORD

2h 34mnonstop

$230United Airlines

Wed, May 27 - Sun, May 31

11:00 am - 12:30 pm

ORD

RAP

2h 30mnonstop

6:10 pm - 9:29 pm

RAP

ORD

2h 19mnonstop

$231American Airlines

Sat, Aug 29 - Sat, Sep 5

8:45 am - 10:24 am

ORD

RAP

2h 39mnonstop

6:00 am - 9:34 am

RAP

ORD

2h 34mnonstop

$233United Airlines

Fri, Jul 17 - Mon, Jul 20

5:05 am - 5:21 pm

ORD

FSD

12h 16m

1 stop

6:11 pm - 9:36 am

FSD

ORD

15h 25m

1 stop

$233Multiple Airlines

Mon, Apr 27 - Fri, May 1

3:44 pm - 5:21 pm

ORD

FSD

25h 37m

1 stop

8:53 pm - 8:32 pm

FSD

ORD

23h 39m

2 stops

$239Multiple Airlines

Thu, May 7 - Mon, May 11

9:54 am - 3:44 pm

MDW

FSD

5h 50m

1 stop

1:30 pm - 6:18 pm

FSD

MDW

4h 48m

1 stop

$269Delta

Fri, Jun 26 - Tue, Jul 7

9:54 am - 3:44 pm

MDW

FSD

5h 50m

1 stop

8:23 am - 6:25 pm

FSD

MDW

10h 02m

2 stops

$274Delta

Fri, Jun 26 - Wed, Jul 8

9:55 pm - 1:36 pm

MLI

FSD

15h 41m

1 stop

2:35 pm - 11:29 am

FSD

MLI

20h 54m

1 stop

$333Allegiant Air

Mon, Apr 27 - Wed, Apr 29

9:55 pm - 1:36 pm

MLI

FSD

15h 41m

1 stop

9:10 pm - 9:05 pm

FSD

MLI

23h 55m

1 stop

$387Allegiant Air

Mon, Apr 27 - Thu, Apr 30

American Airlines flights from Illinois to South Dakota

Our best American Airlines deals on Illinois to South Dakota flight tickets

American Airlines

Jul 11

ORD2:58 pmChicago O'Hare Intl

7h 33m

1 stop

RAP9:31 pmRapid City

Jul 15

RAP4:55 pmRapid City

6h 36m

1 stop

ORD12:31 amChicago O'Hare Intl

$211

American Airlines

Aug 29

ORD11:00 amChicago O'Hare Intl

2h 30m

RAP12:30 pmRapid City

Sep 5

RAP6:10 pmRapid City

2h 19m

ORD9:29 pmChicago O'Hare Intl

$231

American Airlines

Aug 29

ORD3:50 pmChicago O'Hare Intl

6h 45m

1 stop

RAP9:35 pmRapid City

Sep 5

RAP6:10 pmRapid City

2h 19m

ORD9:29 pmChicago O'Hare Intl

$241

United Airlines flights from Illinois to South Dakota

Our best United Airlines deals on Illinois to South Dakota flight tickets

United Airlines

May 27

ORD8:45 amChicago O'Hare Intl

2h 39m

RAP10:24 amRapid City

May 31

RAP6:00 amRapid City

2h 34m

ORD9:34 amChicago O'Hare Intl

$230

United Airlines

Jul 17

ORD8:45 amChicago O'Hare Intl

2h 39m

RAP10:24 amRapid City

Jul 20

RAP6:00 amRapid City

2h 34m

ORD9:34 amChicago O'Hare Intl

$233

United Airlines

Jul 17

ORD8:45 amChicago O'Hare Intl

2h 39m

RAP10:24 amRapid City

Jul 24

RAP5:53 pmRapid City

5h 51m

1 stop

ORD12:44 amChicago O'Hare Intl

$255

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoRapid City

ORD - RAP

ORDRAP

Chicago O'Hare Intl

Sat 7/11

2:58 pm-9:31 pm

1 stop7h 33m

Rapid City

Wed 7/15

4:55 pm-12:31 am

1 stop6h 36m

$211

ChicagoRapid City

ORD - RAP

ORDRAP

Chicago O'Hare Intl

Wed 5/27

8:45 am-10:24 am

Nonstop2h 39m

Rapid City

Sun 5/31

6:00 am-9:34 am

Nonstop2h 34m

$230

Quickest round-trip

ChicagoRapid City

ORD - RAP

ORDRAP

Chicago O'Hare Intl

Sat 8/29

11:00 am-12:30 pm

Nonstop2h 30m

Rapid City

Sat 9/5

6:10 pm-9:29 pm

Nonstop2h 19m

$231

ChicagoRapid City

ORD - RAP

ORDRAP

Chicago O'Hare Intl

Fri 7/17

8:45 am-10:24 am

Nonstop2h 39m

Rapid City

Mon 7/20

6:00 am-9:34 am

Nonstop2h 34m

$233

ChicagoSioux Falls

ORD - FSD

ORDFSD

Chicago O'Hare Intl

Mon 4/27

5:05 am-5:21 pm

1 stop12h 16m

Sioux Falls Joe Foss Field

Fri 5/1

6:11 pm-9:36 am

1 stop15h 25m

$233

ChicagoSioux Falls

ORD - FSD

ORDFSD

Chicago O'Hare Intl

Thu 5/7

3:44 pm-5:21 pm

1 stop25h 37m

Sioux Falls Joe Foss Field

Mon 5/11

8:53 pm-8:32 pm

2 stops23h 39m

$239

ChicagoSioux Falls

MDW - FSD

MDWFSD

Chicago Midway

Fri 6/26

9:54 am-3:44 pm

1 stop5h 50m

Sioux Falls Joe Foss Field

Tue 7/7

1:30 pm-6:18 pm

1 stop4h 48m

$269

ChicagoSioux Falls

MDW - FSD

MDWFSD

Chicago Midway

Fri 6/26

9:54 am-3:44 pm

1 stop5h 50m

Sioux Falls Joe Foss Field

Wed 7/8

8:23 am-6:25 pm

2 stops10h 02m

$274

MolineSioux Falls

MLI - FSD

MLIFSD

Moline Quad-City

Mon 4/27

9:55 pm-1:36 pm

1 stop15h 41m

Sioux Falls Joe Foss Field

Wed 4/29

2:35 pm-11:29 am

1 stop20h 54m

$333

MolineSioux Falls

MLI - FSD

MLIFSD

Moline Quad-City

Mon 4/27

9:55 pm-1:36 pm

1 stop15h 41m

Sioux Falls Joe Foss Field

Thu 4/30

9:10 pm-9:05 pm

1 stop23h 55m

$387

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Illinois to South Dakota

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to South Dakota?

The month of January is, on average, the cheapest month to fly to South Dakota from Illinois, with most prices found around $189. If you aren’t able to travel to South Dakota during the month of January, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $204.

What is the cheapest day to depart on your flight to South Dakota?

The cheapest day to depart from Illinois to South Dakota is on a Wednesday. Travelers who choose to depart for South Dakota on a Wednesday will often find tickets for as low as $249. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around $470. These prices are subject to change though, so be sure to set up a Price Alert for flights to South Dakota.

What is the cheapest time of day to depart on your flight to South Dakota?

The cheapest time of day to fly to South Dakota is in the evening when flights can be purchased for as low as $282. In the morning is when there is more demand to fly to South Dakota, so prices are often more expensive at around $349 per ticket.

What is the cheapest Illinois to South Dakota flight route?

Fly from Chicago O'Hare Intl to Sioux Falls Joe Foss Field for the best Illinois - South Dakota flight prices

What cabin class options are available on Illinois to South Dakota flights?

There are 4 cabin classes available to choose from on Illinois to South Dakota flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Illinois to South Dakota flights?

You could potentially save up to 18% on your flight if you consider stops on a Illinois to South Dakota flight.

Cheap Illinois to South Dakota flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to South Dakota

Best Price Found	$205
Fastest flight time	1h 49m
Direct flights	Every day
Airports in South Dakota	20 airports

The best one-way flight to South Dakota from Illinois in the past 72 hours is $205. The best round-trip flight deal from Illinois to South Dakota found on momondo in the last 72 hours is $289.

The fastest flight from Illinois to South Dakota takes 1h 49m

Direct flights go from Illinois to South Dakota every day.

There are 20 airports in South Dakota. From Illinois there are direct flights to Rapid City (RAP), Sioux Falls Joe Foss Field (FSD).

Search flight deals

Frequently asked questions about flying from Illinois to South Dakota

When did momondo last update prices for flights from Illinois to South Dakota?
Prices for flights from Illinois to South Dakota were last updated today.
How many operators does momondo search for flights from Illinois to South Dakota?
As of April 2026, there are 3 operators available to choose from for flights from Illinois to South Dakota.
How old do you have to be to fly from Illinois to South Dakota?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Illinois to South Dakota.
What documentation or ID do you need to fly to South Dakota?
The travel and health documents you'll need for your trip to South Dakota may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at South Dakota. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Illinois to South Dakota?
Based on momondo bookings for flights between Illinois and South Dakota, the leading plane model is Embraer 175, making up 21.65% of the total bookings. Other popular models include Embraer 170 with 19.01%, Embraer 175 (Enhanced Winglets) with 15.85%, and Canadair (Bombardier) Regional Jet CRJ-550 with 12.15%.

Best airlines flying from Illinois to South Dakota

Compare and see reviews for airlines that fly from Illinois to South Dakota with momondo

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $189	Free Cancellation	Rating 7.1 11,584 reviews	Search American Airlines flights
United Airlines	PriceFrom $189	Free Cancellation	Rating 7.4 9,594 reviews	Search United Airlines flights
Delta	PriceFrom $228	Free Cancellation	Rating 7.9 8,409 reviews	Search Delta flights

Why use momondo?

Why should I use momondo to find a flight deal from Illinois to South Dakota?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Illinois to South Dakota. momondo saves you time and could save you money on your trip.

Can I find flights from Illinois to South Dakota with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Illinois to South Dakota flights to just show those with flexible booking policies.

How can momondo help me find flights from Illinois to South Dakota?

Once you have performed a search for Illinois to South Dakota flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Illinois to South Dakota right now. Can momondo alert me if prices change?

If you are simply researching potential flights to South Dakota, momondo offers a useful price alert feature which will track prices for flights to South Dakota from Illinois and alert you when they change.

An easier way to manage your South Dakota trip

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Popular cities in South Dakota

Flights to New Yorkfrom $56

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Flights to Chicagofrom $64

Flights to San Franciscofrom $59

Flights to Las Vegasfrom $46

Flights to Washington, D.C.from $56

Flights to Bostonfrom $70

Flights to Atlantafrom $56

Flights to Dallasfrom $56

Flights to Fort Lauderdalefrom $53

Cheap flights from Illinois to South Dakota from $99

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to South Dakota departing on 5/14. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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American Airlines flights from Illinois to South Dakota

Our best American Airlines deals on Illinois to South Dakota flight tickets

United Airlines flights from Illinois to South Dakota

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How to get the cheapest flight ticket from Illinois to South Dakota

What is the cheapest month to fly to South Dakota?

What is the cheapest day to depart on your flight to South Dakota?

What is the cheapest time of day to depart on your flight to South Dakota?

What is the cheapest Illinois to South Dakota flight route?

What cabin class options are available on Illinois to South Dakota flights?

Can stopping save me money on Illinois to South Dakota flights?

What is the cheapest airline that flies from Illinois to South Dakota?

What airlines fly to South Dakota?

How many flights depart from Illinois to South Dakota on average per day?

How many flights depart from Illinois to South Dakota on average per week?

How long is the flight from Illinois to South Dakota?

Cheap Illinois to South Dakota flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to South Dakota

Best Price Found

Fastest flight time

Direct flights

Airports in South Dakota

Frequently asked questions about flying from Illinois to South Dakota

Best airlines flying from Illinois to South Dakota

Compare and see reviews for airlines that fly from Illinois to South Dakota with momondo

Why use momondo?

An easier way to manage your South Dakota trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to South Dakota

Popular cities in South Dakota

Popular flights according to clicks in the last 7 days on momondo

Illinois flight routes

According to popular flight searches on momondo this year

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