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Sioux Falls

$89+ Cheap flights from Illinois to Sioux Falls (FSD)

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 8/27. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — FSD
ago. 5 — ago. 121
mar. 8/5
mar. 8/12
1 adult, Economy
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Cheap flight deals from Illinois to Sioux Falls

Keep the following information in mind while searching for Illinois to Sioux Falls flight deals. Data was last updated julio 31, 2025.

Round-trip from

$187
(Frontier)

One-way from

$89
(Frontier)

Popular in

January

Cheapest in

March

Average price

$334

Good round-trip deal

$239 or less

Good one-way deal

$258 or less
From Illinois to Sioux Falls Joe Foss Field
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One-way flight from Illinois to Sioux Falls Joe Foss Field
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Highest demand for flights based on searches. 12% potential increase in price ($43 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($15 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Illinois to Sioux Falls Joe Foss Field.
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Price to beat on a one-way flight from Illinois to Sioux Falls Joe Foss Field.
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Find flight deals from Illinois to Sioux Falls

Cheapest flights from Illinois to Sioux Falls
Explore the most affordable flight options available from Illinois to Sioux Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 31, 2025.

This Frontier deal was found by Cheapflights users on 7/29. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/67:00 amORD - FSD
1 stop11h 54mFrontier
mié. 8/203:07 pmFSD - ORD
1 stop6h 35mFrontier
Deal found 7/29$178
This Frontier deal was found by Cheapflights users on 7/31. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 8/217:54 pmSTL - FSD
1 stop17h 29mFrontier
mié. 8/273:07 pmFSD - STL
1 stop18h 04mFrontier
Deal found 7/31$187
This American Airlines deal was found by Cheapflights users on 7/29. 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.
jue. 8/2110:20 pmORD - FSD
Nonstop2h 08mAmerican Airlines
sáb. 8/236:00 amFSD - ORD
Nonstop1h 46mAmerican Airlines
Deal found 7/29$189
This United Airlines deal was found by Cheapflights users on 7/29. 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.
vie. 9/58:20 pmORD - FSD
Nonstop1h 52mUnited Airlines
vie. 9/126:11 pmFSD - ORD
Nonstop1h 59mUnited Airlines
Deal found 7/29$192
This United Airlines deal was found by Cheapflights users on 7/31. 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.
sáb. 8/305:30 pmSTL - FSD
1 stop4h 42mUnited Airlines
dom. 8/319:15 amFSD - STL
1 stop7h 18mUnited Airlines
Deal found 7/31$194
This FlightHub deal was found by Cheapflights users on 7/29. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/134:29 pmMDW - FSD
1 stop20h 55mFrontier
lun. 11/172:09 pmFSD - MDW
1 stop8h 29mFrontier
Deal found 7/29$205
This Mytrip deal was found by Cheapflights users on 7/30. 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.
jue. 9/116:44 pmORD - FSD
2 stops24h 14mMultiple Airlines
lun. 9/155:02 pmFSD - ORD
2 stops24h 37mMultiple Airlines
Deal found 7/30$206
This Delta deal was found by Cheapflights users on 7/28. 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.
sáb. 9/208:52 amORD - FSD
1 stop6h 34mDelta
dom. 9/215:00 amFSD - ORD
1 stop3h 25mDelta
Deal found 7/28$209
This Delta deal was found by Cheapflights users on 7/28. 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.
sáb. 9/209:20 amMDW - FSD
1 stop6h 06mDelta
dom. 9/215:00 amFSD - MDW
1 stop3h 49mDelta
Deal found 7/28$209
This American Airlines deal was found by Cheapflights users on 7/31. 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.
vie. 9/125:18 amSTL - FSD
1 stop7h 20mAmerican Airlines
sáb. 9/135:33 pmFSD - STL
1 stop5h 17mAmerican Airlines
Deal found 7/31$229
This American Airlines deal was found by Cheapflights users on 7/30. 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.
dom. 9/216:38 pmMLI - FSD
1 stop5h 21mAmerican Airlines
sáb. 9/276:00 amFSD - MLI
1 stop4h 50mAmerican Airlines
Deal found 7/30$229
This United Airlines deal was found by Cheapflights users on 7/31. 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.
sáb. 8/163:45 pmMLI - FSD
1 stop6h 15mUnited Airlines
mié. 8/203:12 pmFSD - MLI
1 stop6h 00mUnited Airlines
Deal found 7/31$239

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Sioux Falls 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 julio 31, 2025.
Use the filters below to find and compare flights from Illinois to Sioux Falls that are best for you.

Fly from

Illinois

Fly to

Sioux Falls

Route

Depart

Return

Price

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

jue. 8/21

7:54 pm-1:23 pm

1 stop17h 29m

Sioux Falls Joe Foss Field

mié. 8/27

3:07 pm-9:11 am

1 stop18h 04m

$187

ChicagoSioux Falls

ORD - FSD

ORDFSD

Chicago O'Hare Intl

mié. 8/20

7:20 am-2:12 pm

1 stop6h 52m

Sioux Falls Joe Foss Field

vie. 8/22

2:08 pm-12:32 am

1 stop10h 24m

$188

ChicagoSioux Falls

ORD - FSD

ORDFSD

Chicago O'Hare Intl

jue. 8/21

10:20 pm-12:28 am

Nonstop2h 08m

Sioux Falls Joe Foss Field

sáb. 8/23

6:00 am-7:46 am

Nonstop1h 46m

$189

ChicagoSioux Falls

ORD - FSD

ORDFSD

Chicago O'Hare Intl

vie. 9/5

8:20 pm-10:12 pm

Nonstop1h 52m

Sioux Falls Joe Foss Field

vie. 9/12

6:11 pm-8:10 pm

Nonstop1h 59m

$192

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

sáb. 8/30

5:30 pm-10:12 pm

1 stop4h 42m

Sioux Falls Joe Foss Field

dom. 8/31

9:15 am-4:33 pm

1 stop7h 18m

$194

ChicagoSioux Falls

MDW - FSD

MDWFSD

Chicago Midway

jue. 11/13

4:29 pm-1:24 pm

1 stop20h 55m

Sioux Falls Joe Foss Field

lun. 11/17

2:09 pm-10:38 pm

1 stop8h 29m

$205

ChicagoSioux Falls

ORD - FSD

ORDFSD

Chicago O'Hare Intl

jue. 9/11

6:44 pm-6:58 pm

2 stops24h 14m

Sioux Falls Joe Foss Field

lun. 9/15

5:02 pm-5:39 pm

2 stops24h 37m

$206

ChicagoSioux Falls

ORD - FSD

ORDFSD

Chicago O'Hare Intl

sáb. 9/20

8:52 am-3:26 pm

1 stop6h 34m

Sioux Falls Joe Foss Field

dom. 9/21

5:00 am-8:25 am

1 stop3h 25m

$209

ChicagoSioux Falls

MDW - FSD

MDWFSD

Chicago Midway

sáb. 9/20

9:20 am-3:26 pm

1 stop6h 06m

Sioux Falls Joe Foss Field

dom. 9/21

5:00 am-8:49 am

1 stop3h 49m

$209

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

vie. 9/12

5:18 am-12:38 pm

1 stop7h 20m

Sioux Falls Joe Foss Field

sáb. 9/13

5:33 pm-10:50 pm

1 stop5h 17m

$229

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 25 results
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Best time to book a flight from Illinois to Sioux Falls

Have a flexible travel schedule? Discover the best time to fly to Sioux Falls 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.

Cheapflights Insights

Everything you need to know about your flight from Illinois to Sioux Falls

What is the cheapest month to book a flight from Illinois to Sioux Falls?

Currently, September is the cheapest month in which you can book a flight from Illinois to Sioux Falls (average of $334). Flying from Illinois to Sioux Falls 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 FSD?

Find hourly flight availability from Illinois to Sioux Falls. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated julio 31, 2025.

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

Weekly flight availability from Illinois to Sioux Falls

Explore weekly flight availability from Illinois to Sioux Falls. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated julio 31, 2025.

The most flights from USIL to FSD are scheduled on a Thursday (16 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (6 on average).

Reviews of airlines servicing Sioux Falls

Get insights into the airlines that provide service to Sioux Falls. 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 Sioux Falls. Reviews last updated julio 31, 2025.
See what other customers who have flown with Delta, United Airlines, and American Airlines from Illinois to Sioux Falls have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,981 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,900 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Allegiant Air
7.2
Good
702 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Frontier
5.9
Fair
3,239 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

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

  • What airport do you fly into for flights to Sioux Falls from Illinois?

    For a flight from Illinois to Sioux Falls, you will be flying into Joe Foss Field. Sioux Falls Joe Foss Field (FSD) is just 2.6 mi from the center of the city.

  • What are the cheapest airlines to fly from Illinois to Sioux Falls one-way?

    One-way options have recently been found by users for as low as $89 on Frontier. Other airlines that offer cheap prices include Delta from $126 and American Airlines from $214 one-way.

  • What are the most popular routes from Illinois to Sioux Falls?

    Most travelers choose Chicago O'Hare Intl - Sioux Falls Joe Foss Field, Chicago Midway - Sioux Falls Joe Foss Field or Lambert-St Louis - Sioux Falls Joe Foss Field when deciding on the best route from Illinois to Sioux Falls.

  • What are the most reliable airlines from Illinois to Sioux Falls?

    No one likes to see their flight delayed. When booking a flight from Illinois to Sioux Falls consider choosing Air New Zealand (84%), United Airlines (78%) or GoJet (77%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Illinois to Sioux Falls?

    On average you can expect to pay $354 for a flight from Illinois to Sioux Falls. The cheapest flight overall is $189 while the most popular route, (Chicago O'Hare Intl - Sioux Falls Joe Foss Field) is currently priced at $189.

  • Can I find deals for flights from Illinois to Sioux Falls that include hotel bookings?

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

  • How can I find direct flights from Illinois to Sioux Falls?

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

  • Can I find deals for business class flights from Illinois to Sioux Falls?

    Yes. Cheapflights offers flight deals from Illinois to Sioux Falls 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 Sioux Falls?

    Currently, September is the cheapest month in which you can book a flight from Illinois to Sioux Falls (average of $334). Flying from Illinois to Sioux Falls 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 Sioux Falls

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Illinois to Sioux Falls

Discover the top 2 airlines that operate flights from Illinois to Sioux Falls. 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 julio 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$179Average$250FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$207Average$306FlexibilityNo cancel feeOn-time69%

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