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

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

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 48% of people opting to fly with this airline when traveling to South Dakota. Keep in mind that there are 4 different airlines that fly to South Dakota on a routine basis, so you have a few additional options to choose from.

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

As of March 2026, 7 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 40% of daily flights taking off in the afternoon.

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 46m on average. If you fly from Moline (another popular airport in Illinois) to Sioux Falls, then the average flight time is 4h 16m.

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

As of March 2026, 51 flights take off from Illinois and land in South Dakota each week. The most common flight departure day for this route is Wed, with 33% of weekly flights taking off on this day.

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 March 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.

$117 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.

3:59 pm - 7:20 pm

ORD

FSD

3h 21m

1 stop

9:50 am - 3:16 pm

FSD

ORD

5h 26m

1 stop

$177Delta

Fri, Apr 3 - Sat, Apr 4

7:20 pm - 11:04 pm

MDW

FSD

3h 44m

1 stop

1:34 pm - 6:40 pm

FSD

MDW

5h 06m

1 stop

$177Delta

Fri, Apr 3 - Sat, Apr 4

9:50 pm - 11:44 pm

ORD

FSD

1h 54mnonstop

7:39 am - 9:21 am

FSD

ORD

1h 42mnonstop

$189United Airlines

Fri, Apr 3 - Sun, Apr 5

9:16 pm - 11:11 pm

ORD

FSD

1h 55mnonstop

3:17 pm - 5:12 pm

FSD

ORD

1h 55mnonstop

$190American Airlines

Mon, Apr 13 - Mon, Apr 20

7:09 pm - 11:02 pm

ORD

FSD

3h 53m

1 stop

1:44 pm - 6:13 pm

FSD

ORD

4h 29m

1 stop

$193Delta

Mon, Apr 13 - Mon, Apr 20

9:47 am - 11:38 am

ORD

FSD

1h 51mnonstop

12:14 pm - 2:02 pm

FSD

ORD

1h 48mnonstop

$204American Airlines

Thu, Mar 19 - Sun, Mar 22

9:45 am - 11:23 am

ORD

RAP

2h 38mnonstop

11:53 am - 3:20 pm

RAP

ORD

2h 27mnonstop

$208American Airlines

Thu, Apr 16 - Thu, Apr 23

9:00 am - 10:30 am

ORD

RAP

2h 30mnonstop

11:40 am - 2:53 pm

RAP

ORD

2h 13mnonstop

$209United Airlines

Thu, Apr 2 - Sun, Apr 5

7:00 am - 1:08 pm

ORD

RAP

7h 08m

1 stop

9:20 am - 12:45 pm

RAP

ORD

2h 25mnonstop

$219United Airlines

Fri, Apr 3 - Sun, Apr 5

7:40 pm - 9:38 pm

ORD

FSD

1h 58mnonstop

5:00 am - 6:58 am

FSD

ORD

1h 58mnonstop

$221United Airlines

Fri, May 22 - Mon, May 25

American Airlines flights from Illinois to South Dakota

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

American Airlines

Apr 13

ORD9:16 pmChicago O'Hare Intl

1h 55m

FSD11:11 pmSioux Falls Joe Foss Field

Apr 20

FSD3:17 pmSioux Falls Joe Foss Field

1h 55m

ORD5:12 pmChicago O'Hare Intl

$190

American Airlines

Mar 19

ORD9:47 amChicago O'Hare Intl

1h 51m

FSD11:38 amSioux Falls Joe Foss Field

Mar 22

FSD12:14 pmSioux Falls Joe Foss Field

1h 48m

ORD2:02 pmChicago O'Hare Intl

$204

American Airlines

Apr 16

ORD9:45 amChicago O'Hare Intl

2h 38m

RAP11:23 amRapid City

Apr 23

RAP11:53 amRapid City

2h 27m

ORD3:20 pmChicago O'Hare Intl

$208

Delta flights from Illinois to South Dakota

Our best Delta deals on Illinois to South Dakota flight tickets

Delta

Apr 3

ORD3:59 pmChicago O'Hare Intl

3h 21m

1 stop

FSD7:20 pmSioux Falls Joe Foss Field

Apr 4

FSD9:50 amSioux Falls Joe Foss Field

5h 26m

1 stop

ORD3:16 pmChicago O'Hare Intl

$177

Delta

Apr 13

ORD7:09 pmChicago O'Hare Intl

3h 53m

1 stop

FSD11:02 pmSioux Falls Joe Foss Field

Apr 20

FSD1:44 pmSioux Falls Joe Foss Field

4h 29m

1 stop

ORD6:13 pmChicago O'Hare Intl

$193

Delta

Apr 2

ORD6:15 amChicago O'Hare Intl

6h 38m

1 stop

FSD12:53 pmSioux Falls Joe Foss Field

Apr 5

FSD5:00 amSioux Falls Joe Foss Field

3h 40m

1 stop

ORD8:40 amChicago O'Hare Intl

$197

Fly from

Fly to

Route

Depart

Return

Price

ChicagoSioux Falls

ORD - FSD

ORDFSD

Chicago O'Hare Intl

Fri 4/3

3:59 pm-7:20 pm

1 stop3h 21m

Sioux Falls Joe Foss Field

Sat 4/4

9:50 am-3:16 pm

1 stop5h 26m

$177

ChicagoSioux Falls

MDW - FSD

MDWFSD

Chicago Midway

Fri 4/3

7:20 pm-11:04 pm

1 stop3h 44m

Sioux Falls Joe Foss Field

Sat 4/4

1:34 pm-6:40 pm

1 stop5h 06m

$177

ChicagoSioux Falls

ORD - FSD

ORDFSD

Chicago O'Hare Intl

Fri 4/3

9:50 pm-11:44 pm

Nonstop1h 54m

Sioux Falls Joe Foss Field

Sun 4/5

7:39 am-9:21 am

Nonstop1h 42m

$189

ChicagoSioux Falls

ORD - FSD

ORDFSD

Chicago O'Hare Intl

Mon 4/13

9:16 pm-11:11 pm

Nonstop1h 55m

Sioux Falls Joe Foss Field

Mon 4/20

3:17 pm-5:12 pm

Nonstop1h 55m

$190

ChicagoSioux Falls

ORD - FSD

ORDFSD

Chicago O'Hare Intl

Mon 4/13

7:09 pm-11:02 pm

1 stop3h 53m

Sioux Falls Joe Foss Field

Mon 4/20

1:44 pm-6:13 pm

1 stop4h 29m

$193

ChicagoSioux Falls

ORD - FSD

ORDFSD

Chicago O'Hare Intl

Thu 3/19

9:47 am-11:38 am

Nonstop1h 51m

Sioux Falls Joe Foss Field

Sun 3/22

12:14 pm-2:02 pm

Nonstop1h 48m

$204

ChicagoRapid City

ORD - RAP

ORDRAP

Chicago O'Hare Intl

Thu 4/16

9:45 am-11:23 am

Nonstop2h 38m

Rapid City

Thu 4/23

11:53 am-3:20 pm

Nonstop2h 27m

$208

ChicagoRapid City

ORD - RAP

ORDRAP

Chicago O'Hare Intl

Thu 4/2

9:00 am-10:30 am

Nonstop2h 30m

Rapid City

Sun 4/5

11:40 am-2:53 pm

Nonstop2h 13m

$209

ChicagoRapid City

ORD - RAP

ORDRAP

Chicago O'Hare Intl

Fri 4/3

7:00 am-1:08 pm

1 stop7h 08m

Rapid City

Sun 4/5

9:20 am-12:45 pm

Nonstop2h 25m

$219

ChicagoSioux Falls

ORD - FSD

ORDFSD

Chicago O'Hare Intl

Fri 5/22

7:40 pm-9:38 pm

Nonstop1h 58m

Sioux Falls Joe Foss Field

Mon 5/25

5:00 am-6:58 am

Nonstop1h 58m

$221

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 September is also cheap. Prices for this month can be found on momondo for an average of $215.

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 $263. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around $427. 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 at noon when flights can be purchased for as low as $189. In the morning is when there is more demand to fly to South Dakota, so prices are often more expensive at around $350 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.

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	$173
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 $173. The best round-trip flight deal from Illinois to South Dakota found on momondo in the last 72 hours is $220.

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

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 March 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 18.35% of the total bookings. Other popular models include Embraer 170 with 16.80%, Embraer 175 (Enhanced Winglets) with 14.21%, and Canadair (Bombardier) Regional Jet CRJ-550 with 13.95%.

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
Denver Air Connection	PriceFrom $164	Free Cancellation	Rating 8.1 24 reviews	Search Denver Air Connection flights
American Airlines	PriceFrom $189	Free Cancellation	Rating 7.1 11,380 reviews	Search American Airlines flights
United Airlines	PriceFrom $194	Free Cancellation	Rating 7.4 9,383 reviews	Search United Airlines flights
Delta	PriceFrom $228	Free Cancellation	Rating 7.9 8,245 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 $37

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Flights to Chicagofrom $56

Flights to San Franciscofrom $58

Flights to Las Vegasfrom $55

Flights to Washington, D.C.from $56

Flights to Bostonfrom $77

Flights to Atlantafrom $49

Flights to Dallasfrom $60

Flights to Seattlefrom $55

Cheap flights from Illinois to South Dakota from $117

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 4/29. 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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Filter for what you want

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American Airlines flights from Illinois to South Dakota

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

Delta flights from Illinois to South Dakota

Our best Delta deals on Illinois to South Dakota flight tickets

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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?

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

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

South Dakota flight routes

According to popular flight searches on momondo this year

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