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South Dakota

$60+ Cheap flights from Illinois to South Dakota

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/20. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — FSD
Dec 23 — Dec 301
Mon 12/23
Mon 12/30
1 adult, Economy
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Cheap flight deals from Illinois to South Dakota

Discover tips and strategies to find the most affordable flight options for your journey from Illinois (USIL) to South Dakota (USSD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 18, 2024.

Round-trip from

$189
(American Airlines)

One-way from

$60
(Frontier)
From Illinois to South Dakota
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One-way flight from Illinois to South Dakota
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Find flight deals from Illinois to South Dakota

Cheapest flights from Illinois to South Dakota
Explore the most affordable flight options available from Illinois to South Dakota. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2024.

This American Airlines deal was found by Cheapflights users on 12/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/259:47 amORD - FSD
Nonstop1h 53mAmerican Airlines
Fri 12/275:14 amFSD - ORD
Nonstop2h 00mAmerican Airlines
Deal found 12/18$239
This United Airlines deal was found by Cheapflights users on 12/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/258:20 pmORD - FSD
Nonstop1h 55mUnited Airlines
Sun 12/297:30 amFSD - ORD
Nonstop2h 07mUnited Airlines
Deal found 12/18$299
This Delta deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/185:50 pmORD - FSD
1 stop5h 24mDelta
Tue 12/2411:25 amFSD - ORD
1 stop5h 44mDelta
Deal found 12/17$313
This Delta deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/182:15 pmMDW - FSD
1 stop4h 47mDelta
Tue 12/2411:25 amFSD - MDW
1 stop5h 46mDelta
Deal found 12/17$313
This United Airlines deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/312:25 pmPIA - RAP
1 stop7h 59mUnited Airlines
Mon 2/35:20 amRAP - PIA
2 stops8h 38mUnited Airlines
Deal found 12/17$364
This American Airlines deal was found by Cheapflights users on 12/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/286:28 pmSTL - FSD
1 stop4h 24mAmerican Airlines
Sat 1/45:14 amFSD - STL
1 stop6h 18mAmerican Airlines
Deal found 12/18$448
This American Airlines deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/313:39 pmPIA - RAP
1 stop6h 10mAmerican Airlines
Mon 2/312:27 pmRAP - PIA
1 stop7h 54mAmerican Airlines
Deal found 12/17$453
This United Airlines deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/257:35 pmORD - RAP
Nonstop2h 49mUnited Airlines
Mon 12/301:30 pmRAP - ORD
1 stop7h 00mUnited Airlines
Deal found 12/16$474
This United deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/214:43 pmSTL - RAP
1 stop6h 32mUnited Airlines
Wed 1/13:49 pmRAP - STL
1 stop5h 27mUnited Airlines
Deal found 12/17$631
This Gotogate deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/217:00 amMDW - FSD
1 stop12h 40mFrontier
Fri 12/278:34 pmFSD - MDW
1 stop16h 34mFrontier
Deal found 12/17$667
This Delta deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/257:00 amORD - RAP
2 stops9h 36mDelta
Mon 12/304:16 pmRAP - ORD
1 stop5h 36mDelta
Deal found 12/16$708
This Mytrip deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/217:00 amORD - FSD
1 stop11h 31mMultiple Airlines
Thu 1/169:46 pmFSD - ORD
2 stops19h 25mMultiple Airlines
Deal found 12/17$709

Find flights from Illinois to South Dakota within your budget

Customize your flight search to find flights from Illinois to South Dakota that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 18, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

ChicagoSioux Falls

ORD - FSD

ORDFSD

Chicago O'Hare Intl

Thu 1/9

2:35 pm-4:16 pm

Nonstop1h 41m

Sioux Falls Joe Foss Field

Sun 1/12

5:20 am-7:19 am

Nonstop1h 59m

$189

ChicagoSioux Falls

ORD - FSD

ORDFSD

Chicago O'Hare Intl

Thu 1/9

6:15 am-10:20 am

1 stop4h 05m

Sioux Falls Joe Foss Field

Sun 1/12

5:05 am-10:43 am

1 stop5h 38m

$208

ChicagoSioux Falls

MDW - FSD

MDWFSD

Chicago Midway

Fri 1/31

1:26 pm-6:19 pm

1 stop4h 53m

Sioux Falls Joe Foss Field

Fri 2/7

1:18 pm-5:43 pm

1 stop4h 25m

$208

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Fri 1/17

6:00 am-12:38 pm

1 stop6h 38m

Sioux Falls Joe Foss Field

Mon 1/20

6:59 pm-11:14 pm

1 stop4h 15m

$228

ChicagoRapid City

ORD - RAP

ORDRAP

Chicago O'Hare Intl

Mon 1/20

6:15 am-11:08 am

1 stop5h 53m

Rapid City

Fri 1/31

4:19 pm-9:58 pm

1 stop4h 39m

$228

ChicagoRapid City

MDW - RAP

MDWRAP

Chicago Midway

Thu 2/27

10:19 am-3:33 pm

1 stop6h 14m

Rapid City

Tue 3/4

11:49 am-5:43 pm

1 stop4h 54m

$228

St. LouisRapid City

STL - RAP

STLRAP

Lambert-St Louis

Tue 1/14

10:22 am-3:37 pm

1 stop6h 15m

Rapid City

Mon 1/20

4:19 pm-11:14 pm

1 stop5h 55m

$248

ChicagoRapid City

ORD - RAP

ORDRAP

Chicago O'Hare Intl

Mon 6/9

11:40 am-1:04 pm

Nonstop2h 24m

Rapid City

Mon 6/16

6:01 pm-9:15 pm

Nonstop2h 14m

$249

PeoriaRapid City

PIA - RAP

PIARAP

Greater Peoria

Wed 1/29

3:33 pm-8:25 pm

1 stop5h 52m

Rapid City

Sat 2/1

12:27 pm-9:21 pm

1 stop7h 54m

$293

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Thu 1/2

5:30 pm-10:15 pm

1 stop4h 45m

Sioux Falls Joe Foss Field

Mon 1/6

5:10 pm-10:16 pm

1 stop5h 06m

$298

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 29 results
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Best time to book a flight from Illinois to South Dakota

Have a flexible travel schedule? Discover the best time to fly to South Dakota from Illinois with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Illinois to South Dakota

Get recent, data-driven insights about flights from Illinois to South Dakota including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Illinois to South Dakota?

Currently, September is the cheapest month in which you can book a flight from Illinois to South Dakota (average of $334). Flying from Illinois to South Dakota in December is currently the most expensive (average of $446). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IL to SD?

Find hourly flight availability from Illinois to South Dakota. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2024.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to South Dakota as you normally would.

Rainfall in South Dakota by month

Plan your trip to South Dakota by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in South Dakota ranges from 0.6 - 3.9 inches per month. June is typically the wettest month, when rainfall can reach 3.9 in. January is typically the driest time to visit South Dakota when rainfall is around 0.6 in.

Temperature in South Dakota by month

Plan your trip to South Dakota by taking into account the average temperature totals by month.

If weather is an important factor for your trip to South Dakota, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 15.8 F).

Reviews of airlines servicing South Dakota

Get insights into the airlines that provide service to South Dakota. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to South Dakota. Reviews last updated December 18, 2024.
Read reviews from past customers who have flown Delta, American Airlines and United Airlines from Illinois to South Dakota. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,604 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.6

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta
8.0
Very good
8,604 reviews
Delta
8.0
Very good
8,604 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.6

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

United Airlines
7.4
Good
9,059 reviews
Delta
8.0
Very good
8,604 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.6

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
8,604 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.6

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Frontier
6.1
Okay
3,479 reviews
Delta
8.0
Very good
8,604 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.6

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Illinois to South Dakota. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines to fly from Illinois to South Dakota one-way?

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $60. Delta flights start at $198 while deals on American Airlines start at $207 one-way.

  • Can I find deals for flights from Illinois to South Dakota that include hotel bookings?

    Yes. In addition to deals on Illinois to South Dakota flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to South Dakota?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to South Dakota.

  • Can I find deals for business class flights from Illinois to South Dakota?

    Yes. Cheapflights offers flight deals from Illinois to South Dakota by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Illinois to South Dakota?

    Currently, September is the cheapest month in which you can book a flight from Illinois to South Dakota (average of $334). Flying from Illinois to South Dakota in December is currently the most expensive (average of $446). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Illinois to South Dakota

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Top 4 airlines flying from Illinois to South Dakota

Discover the top 4 airlines that operate flights from Illinois to South Dakota. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 18, 2024.
AirlineCheapestAverageFlexibilityOn-time
Denver Air ConnectionCheapest$151Average$155FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$179Average$304FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$199Average$362FlexibilityNo cancel feeOn-time69%
DeltaCheapest$218Average$408FlexibilityNo cancel feeOn-timeN/A
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