What airlines fly to South Dakota?

United Airlines, American Airlines and Delta are the top three most popular airlines that fly to South Dakota from Illinois according to our data. United Airlines is the first choice among our users, with 53% 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 week?

As of July 2025, 117 flights take off from Illinois and land in South Dakota each week. The most common flight departure day for this route is Thu, with 21% of weekly flights taking off on this day.

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

Frontier, American Airlines, and Sun Country Air 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 July 2025, 16 flights take off from Illinois and land in South Dakota each day. The most common flight departure time for this route is 8:00PM, with 39% of daily flights taking off in the evening.

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 37m on average. If you fly from Moline (another popular airport in Illinois) to Sioux Falls, then the average flight time is 4h 40m.

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 July 2025, 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.

$89 Cheap Flights from Illinois to South Dakota in 2025

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Find the cheapest flights from Illinois to South Dakota

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

7:54 pm - 1:23 pmSTL-FSD

17h 29m1 stop

3:07 pm - 9:11 amFSD-STL

18h 04m1 stop

$187Frontier

Find Deal

Thu, Aug 21 - Wed, Aug 27

7:20 am - 2:12 pmORD-FSD

6h 52m1 stop

2:08 pm - 12:32 amFSD-ORD

10h 24m1 stop

$188Frontier

Find Deal

Wed, Aug 20 - Mon, Aug 25

10:20 pm - 12:28 amORD-FSD

2h 08mnonstop

6:00 am - 7:46 amFSD-ORD

1h 46mnonstop

$189American Airlines

Find Deal

Thu, Aug 21 - Sat, Aug 23

8:20 pm - 10:12 pmORD-FSD

1h 52mnonstop

6:11 pm - 8:10 pmFSD-ORD

1h 59mnonstop

$192United Airlines

Find Deal

Fri, Sep 5 - Fri, Sep 12

5:30 pm - 10:12 pmSTL-FSD

4h 42m1 stop

9:15 am - 4:33 pmFSD-STL

7h 18m1 stop

$194United Airlines

Find Deal

Sat, Aug 30 - Sun, Aug 31

10:20 pm - 12:28 amORD-FSD

2h 08mnonstop

6:00 am - 7:46 amFSD-ORD

1h 46mnonstop

$194American Airlines

Find Deal

Thu, Aug 14 - Thu, Aug 21

6:44 pm - 6:58 pmORD-FSD

24h 14m2 stops

5:02 pm - 5:39 pmFSD-ORD

24h 37m2 stops

$206

Find Deal

Thu, Sep 11 - Mon, Sep 15

8:52 am - 3:26 pmORD-FSD

6h 34m1 stop

5:00 am - 8:25 amFSD-ORD

3h 25m1 stop

$209Delta

Find Deal

Sat, Sep 20 - Sun, Sep 21

9:20 am - 3:26 pmMDW-FSD

6h 06m1 stop

5:00 am - 8:49 amFSD-MDW

3h 49m1 stop

$209Delta

Find Deal

Sat, Sep 20 - Sun, Sep 21

10:18 am - 6:47 pmORD-FSD

8h 29m2 stops

8:52 pm - 5:55 pmFSD-ORD

21h 03m2 stops

$252

Find Deal

Fri, Sep 26 - Mon, Oct 27

Delta flights from Illinois to South Dakota

Our best Delta deals on Illinois to South Dakota flight tickets

Delta

Sep 20

ORD8:52 amChicago O'Hare Intl

6h 34m

1 stop

FSD3:26 pmSioux Falls Joe Foss Field

Sep 21

FSD5:00 amSioux Falls Joe Foss Field

3h 25m

1 stop

ORD8:25 amChicago O'Hare Intl

$209

Find similar

Delta

Sep 20

ORD2:25 pmChicago O'Hare Intl

8h 19m

2 stops

FSD10:44 pmSioux Falls Joe Foss Field

Sep 21

FSD5:00 amSioux Falls Joe Foss Field

3h 25m

1 stop

ORD8:25 amChicago O'Hare Intl

$214

Find similar

Delta

Aug 15

ORD8:20 pmChicago O'Hare Intl

3h 24m

1 stop

FSD11:44 pmSioux Falls Joe Foss Field

Aug 19

FSD5:00 amSioux Falls Joe Foss Field

3h 24m

1 stop

ORD8:24 amChicago O'Hare Intl

$219

Find similar

Frontier flights from Illinois to South Dakota

Our best Frontier deals on Illinois to South Dakota flight tickets

Frontier

Aug 6

ORD7:00 amChicago O'Hare Intl

11h 54m

1 stop

FSD6:54 pmSioux Falls Joe Foss Field

Aug 20

FSD3:07 pmSioux Falls Joe Foss Field

6h 35m

1 stop

ORD9:42 pmChicago O'Hare Intl

$178

Find similar

Frontier

Aug 21

STL7:54 pmLambert-St Louis

17h 29m

1 stop

FSD1:23 pmSioux Falls Joe Foss Field

Aug 27

FSD3:07 pmSioux Falls Joe Foss Field

18h 04m

1 stop

STL9:11 amLambert-St Louis

$187

Find similar

Frontier

Aug 20

ORD7:20 amChicago O'Hare Intl

6h 52m

1 stop

FSD2:12 pmSioux Falls Joe Foss Field

Aug 25

FSD2:08 pmSioux Falls Joe Foss Field

10h 24m

1 stop

ORD12:32 amChicago O'Hare Intl

$188

Find similar

Fly from

Fly to

Route

Depart

Return

Price

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Thu 8/21

7:54 pm-1:23 pm

1 stop17h 29m

Sioux Falls Joe Foss Field

Wed 8/27

3:07 pm-9:11 am

1 stop18h 04m

$187

ChicagoSioux Falls

ORD - FSD

ORDFSD

Chicago O'Hare Intl

Wed 8/20

7:20 am-2:12 pm

1 stop6h 52m

Sioux Falls Joe Foss Field

Mon 8/25

2:08 pm-12:32 am

1 stop10h 24m

$188

ChicagoSioux Falls

ORD - FSD

ORDFSD

Chicago O'Hare Intl

Thu 8/21

10:20 pm-12:28 am

Nonstop2h 08m

Sioux Falls Joe Foss Field

Sat 8/23

6:00 am-7:46 am

Nonstop1h 46m

$189

ChicagoSioux Falls

ORD - FSD

ORDFSD

Chicago O'Hare Intl

Fri 9/5

8:20 pm-10:12 pm

Nonstop1h 52m

Sioux Falls Joe Foss Field

Fri 9/12

6:11 pm-8:10 pm

Nonstop1h 59m

$192

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Sat 8/30

5:30 pm-10:12 pm

1 stop4h 42m

Sioux Falls Joe Foss Field

Sun 8/31

9:15 am-4:33 pm

1 stop7h 18m

$194

ChicagoSioux Falls

ORD - FSD

ORDFSD

Chicago O'Hare Intl

Thu 8/14

10:20 pm-12:28 am

Nonstop2h 08m

Sioux Falls Joe Foss Field

Thu 8/21

6:00 am-7:46 am

Nonstop1h 46m

$194

ChicagoSioux Falls

ORD - FSD

ORDFSD

Chicago O'Hare Intl

Thu 9/11

6:44 pm-6:58 pm

2 stops24h 14m

Sioux Falls Joe Foss Field

Mon 9/15

5:02 pm-5:39 pm

2 stops24h 37m

$206

ChicagoSioux Falls

ORD - FSD

ORDFSD

Chicago O'Hare Intl

Sat 9/20

8:52 am-3:26 pm

1 stop6h 34m

Sioux Falls Joe Foss Field

Sun 9/21

5:00 am-8:25 am

1 stop3h 25m

$209

ChicagoSioux Falls

MDW - FSD

MDWFSD

Chicago Midway

Sat 9/20

9:20 am-3:26 pm

1 stop6h 06m

Sioux Falls Joe Foss Field

Sun 9/21

5:00 am-8:49 am

1 stop3h 49m

$209

ChicagoSioux Falls

ORD - FSD

ORDFSD

Chicago O'Hare Intl

Fri 9/26

10:18 am-6:47 pm

2 stops8h 29m

Sioux Falls Joe Foss Field

Mon 10/27

8:52 pm-5:55 pm

2 stops21h 03m

$252

Flights are sorted by cheapest round-trip flights first.

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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 March is, on average, the cheapest month to fly to South Dakota from Illinois, with most prices found around $249. If you aren’t able to travel to South Dakota during the month of March, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $254.

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 Friday. Travelers who choose to depart for South Dakota on a Friday will often find tickets for as low as $258. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around $366. 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 $342 per ticket.

What is the cheapest Illinois to South Dakota flight route?

Fly from Chicago O'Hare Intl to Watertown 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?

No. A direct flight is the cheapest option for a flight between 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	$89
Fastest flight time	1h 46m
Direct flights	Every day
Airports in South Dakota	2 airports

The best one-way flight to South Dakota from Illinois in the past 72 hours is $89. The best round-trip flight deal from Illinois to South Dakota found on momondo in the last 72 hours is $187.

The fastest flight from Illinois to South Dakota takes 1h 46m

Direct flights go from Illinois to South Dakota every day.

There are 2 airports near South Dakota: 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 July 2025, 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 170, making up 16.05% of the total bookings. Other popular models include Embraer 175 with 14.25%, Embraer 175 (Enhanced Winglets) with 14.03%, and Canadair (Bombardier) Regional Jet 700 with 12.57%.

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 9.2 13 reviews	Search Denver Air Connection flights
American Airlines	PriceFrom $179	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
United Airlines	PriceFrom $207	Free Cancellation	Rating 7.4 8,900 reviews	Search United Airlines flights
Delta	PriceFrom $228	Free Cancellation	Rating 8.0 7,981 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

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.

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Find better results for your trip to South Dakota

Popular cities in South Dakota

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Cheap flights from Illinois to South Dakota from $89

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 8/27. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Illinois to South Dakota

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

Delta flights from Illinois to South Dakota

Our best Delta deals on Illinois to South Dakota flight tickets

Frontier flights from Illinois to South Dakota

Our best Frontier deals on Illinois to South Dakota flight tickets

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Use the filters below to find and compare flights from Illinois to South Dakota that are best for you.

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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

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?

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 $342 per ticket.

What is the cheapest Illinois to South Dakota flight route?

Fly from Chicago O'Hare Intl to Watertown 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?

No. A direct flight is the cheapest option for a flight between Illinois to South Dakota.

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

Frontier, American Airlines, and Sun Country Air are the most popular carriers operating from Illinois to South Dakota

What airlines fly to South Dakota?

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

As of July 2025, 16 flights take off from Illinois and land in South Dakota each day. The most common flight departure time for this route is 8:00PM, with 39% of daily flights taking off in the evening.

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

As of July 2025, 117 flights take off from Illinois and land in South Dakota each week. The most common flight departure day for this route is Thu, with 21% of weekly flights taking off on this day.

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

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

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

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

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

What is the most popular plane model 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?

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

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

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

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

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