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$64+ Cheap flights from Sioux Falls (FSD) to Illinois

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 1/10. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — ORD
Dec 24 — Dec 311
Tue 12/24
Tue 12/31
1 adult, Economy
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Cheap flight deals from Sioux Falls to Illinois

Discover tips and strategies to find the most affordable flight options for your journey from Sioux Falls (FSD) to Illinois (USIL). 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 19, 2024.

Round-trip from

$127
(Frontier)

One-way from

$73
(Frontier)
From Sioux Falls Joe Foss Field to Illinois
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One-way flight from Sioux Falls Joe Foss Field to Illinois
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Find flight deals from Sioux Falls to Illinois

Cheapest flights from Sioux Falls to Illinois
Explore the most affordable flight options available from Sioux Falls to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 19, 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.
Sun 12/225:14 amFSD - ORD
Nonstop2h 03mAmerican Airlines
Wed 1/18:45 pmORD - FSD
Nonstop2h 07mAmerican Airlines
Deal found 12/18$274
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/235:00 amFSD - ORD
1 stop4h 24mDelta
Wed 12/2510:05 amORD - FSD
1 stop5h 37mDelta
Deal found 12/18$313
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.
Tue 12/317:30 amFSD - ORD
Nonstop2h 07mUnited Airlines
Sat 1/48:20 pmORD - FSD
Nonstop1h 55mUnited Airlines
Deal found 12/18$319
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/225:00 amFSD - MDW
1 stop6h 08mDelta
Wed 12/254:50 pmMDW - FSD
1 stop6h 12mDelta
Deal found 12/18$418
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.
Tue 12/245:14 amFSD - STL
1 stop4h 22mAmerican Airlines
Sat 12/286:28 pmSTL - FSD
1 stop4h 24mAmerican Airlines
Deal found 12/18$483
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.
Mon 12/2311:58 amFSD - ORD
2 stops20h 12mMultiple Airlines
Wed 12/2510:00 amORD - FSD
3 stops25h 33mMultiple Airlines
Deal found 12/17$797

Find flights from Sioux Falls to Illinois within your budget

Customize your flight search to find flights from Sioux Falls to Illinois 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 19, 2024.

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Route

Depart

Return

Price

Sioux FallsChicago

FSD - MDW

FSDMDW

Sioux Falls Joe Foss Field

Fri 1/10

6:43 pm-12:13 am

1 stop5h 30m

Chicago Midway

Mon 1/13

7:15 am-5:39 pm

1 stop10h 24m

$127

Sioux FallsChicago

FSD - ORD

FSDORD

Sioux Falls Joe Foss Field

Fri 1/10

6:43 pm-12:35 am

1 stop5h 52m

Chicago O'Hare Intl

Mon 1/13

7:50 am-5:39 pm

1 stop9h 49m

$137

Sioux FallsChicago

FSD - ORD

FSDORD

Sioux Falls Joe Foss Field

Wed 1/15

3:13 pm-5:10 pm

Nonstop1h 57m

Chicago O'Hare Intl

Wed 1/22

7:43 pm-9:33 pm

Nonstop1h 50m

$189

Sioux FallsChicago

FSD - ORD

FSDORD

Sioux Falls Joe Foss Field

Tue 1/7

12:17 pm-2:07 pm

Nonstop1h 50m

Chicago O'Hare Intl

Tue 1/14

9:54 am-11:45 am

Nonstop1h 51m

$194

Sioux FallsChicago

FSD - MDW

FSDMDW

Sioux Falls Joe Foss Field

Wed 1/15

5:05 am-9:39 am

1 stop4h 34m

Chicago Midway

Wed 1/22

6:59 pm-11:07 pm

1 stop4h 08m

$208

Sioux FallsChicago

FSD - ORD

FSDORD

Sioux Falls Joe Foss Field

Fri 2/7

4:27 pm-9:58 pm

1 stop5h 31m

Chicago O'Hare Intl

Sun 2/9

7:10 pm-11:07 pm

1 stop3h 57m

$208

Sioux FallsSt. Louis

FSD - STL

FSDSTL

Sioux Falls Joe Foss Field

Sun 1/26

5:05 am-10:54 am

1 stop5h 49m

Lambert-St Louis

Sat 2/1

6:00 am-12:38 pm

1 stop6h 38m

$228

Sioux FallsSt. Louis

FSD - STL

FSDSTL

Sioux Falls Joe Foss Field

Sun 1/26

12:17 pm-11:46 pm

2 stops11h 29m

Lambert-St Louis

Sat 2/1

11:41 am-5:02 pm

1 stop5h 21m

$331

Sioux FallsChicago

FSD - ORD

FSDORD

Sioux Falls Joe Foss Field

Fri 2/7

11:00 am-11:32 pm

2 stops12h 32m

Chicago O'Hare Intl

Sun 2/9

7:00 am-12:14 pm

3 stops29h 14m

$446

Sioux FallsSt. Louis

FSD - STL

FSDSTL

Sioux Falls Joe Foss Field

Sun 1/26

3:13 pm-6:09 pm

2 stops26h 56m

Lambert-St Louis

Sat 2/1

8:00 am-8:23 pm

2 stops12h 23m

$570

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 15 results
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Best time to book a flight from Sioux Falls to Illinois

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

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

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

Currently, September is the cheapest month in which you can book a flight from Sioux Falls to Illinois (average of $232). Flying from Sioux Falls to Illinois in June is currently the most expensive (average of $308). 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 FSD to IL?

Find hourly flight availability from Sioux Falls to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 19, 2024.

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

Rainfall in Illinois by month

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

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

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

If weather is an important factor for your trip to Illinois, 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 23.0 F).

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated December 19, 2024.
To help decide which airline to fly from Sioux Falls to Illinois, see what other customers have to say about Delta, United Airlines and Frontier. 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

Boarding

8.2

Comfort

7.9

Crew

8.6

Entertainment

7.9

Food

7.3

Overall

8.0

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

Boarding

8.2

Comfort

7.9

Crew

8.6

Entertainment

7.9

Food

7.3

Overall

8.0

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
9,048 reviews
Delta
8.0
Very good
8,604 reviews

Boarding

8.2

Comfort

7.9

Crew

8.6

Entertainment

7.9

Food

7.3

Overall

8.0

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

Boarding

8.2

Comfort

7.9

Crew

8.6

Entertainment

7.9

Food

7.3

Overall

8.0

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
3,478 reviews
Delta
8.0
Very good
8,604 reviews

Boarding

8.2

Comfort

7.9

Crew

8.6

Entertainment

7.9

Food

7.3

Overall

8.0

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 Sioux Falls to Illinois. 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 from for flights from Sioux Falls to Illinois?

    Most people fly from Sioux Falls Joe Foss Field (FSD) if they book a flight from Sioux Falls to Illinois. Sioux Falls Joe Foss Field is conveniently located just 2.6 mi from Sioux Falls’s city center.

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

    One-way options have recently been found by users for as low as $73 on Frontier. Other airlines that offer cheap prices include Delta from $198 and American Airlines from $207 one-way.

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

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

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

    No one likes to see their flight delayed. When booking a flight from Sioux Falls to Illinois consider choosing Copa Airlines (89%), Air Wisconsin (84%) or GoJet (80%) as they are the most reliable in getting you off to your destination on time.

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

    On average you can expect to pay $846 for a flight from Sioux Falls to Illinois. The cheapest flight overall is $153 while the most popular route, (Sioux Falls Joe Foss Field - Chicago O'Hare Intl) is currently priced at $189.

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

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

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

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

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

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

    Currently, September is the cheapest month in which you can book a flight from Sioux Falls to Illinois (average of $232). Flying from Sioux Falls to Illinois in June is currently the most expensive (average of $308). 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.

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Alternative routes for Sioux Falls to Illinois

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Top 2 airlines flying from Sioux Falls to Illinois

Discover the top 2 airlines that operate flights from Sioux Falls to Illinois. 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 19, 2024.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$184Average$289FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$193Average$298FlexibilityNo cancel feeOn-time69%
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