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$51+ Cheap flights from Iowa 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 10/11. Fares are subject to change and may not be available on all flights or dates of travel.
DSM — ORD
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Iowa to Illinois

Keep the following information in mind while searching for Iowa to Illinois flight deals. Data was last updated September 11, 2025.

Round-trip from

$155
(Kiwi.com)

One-way from

$51
(Southwest)

Popular in

August

Cheapest in

May

Average price

$224

Good round-trip deal

$88 or less

Good one-way deal

$86 or less
From Iowa to Illinois
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One-way flight from Iowa to Illinois
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Highest demand for flights based on searches. 3% potential increase in price ($9 potential increase over avg. RT price).
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Cheapest flight prices on average. 0% potential price decrease ($3 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Iowa to Illinois.
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Price to beat on a one-way flight from Iowa to Illinois.
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Find flight deals from Iowa to Illinois

Cheapest flights from Iowa to Illinois
Explore the most affordable flight options available from Iowa to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/208:59 pmOMA - STL
1 stop12h 08mFrontier
Thu 10/237:52 pmSTL - OMA
1 stop24h 12mFrontier
Deal found 9/10$155
This Southwest deal was found by Cheapflights users on 9/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/84:45 pmDSM - STL
Nonstop1h 10mSouthwest
Thu 10/910:20 pmSTL - DSM
Nonstop1h 10mSouthwest
Deal found 9/10$157
This Southwest deal was found by Cheapflights users on 9/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/224:45 pmDSM - STL
Nonstop1h 10mSouthwest
Thu 10/2310:20 pmSTL - DSM
Nonstop1h 10mSouthwest
Deal found 9/10$164
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/62:16 pmOMA - STL
1 stop18h 51mFrontier
Thu 10/97:52 pmSTL - OMA
1 stop24h 12mFrontier
Deal found 9/9$170
This Delta deal was found by Cheapflights users on 9/11. 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 10/2211:06 amDSM - STL
1 stop5h 40mDelta
Sun 10/266:00 amSTL - DSM
1 stop4h 26mDelta
Deal found 9/11$177
This American Airlines deal was found by Cheapflights users on 9/10. 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.
Fri 10/106:18 pmCID - ORD
Nonstop1h 32mAmerican Airlines
Sun 10/128:21 amORD - CID
Nonstop1h 11mAmerican Airlines
Deal found 9/10$179
This American Airlines deal was found by Cheapflights users on 9/10. 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.
Fri 10/311:20 amMLI - ORD
Nonstop1h 09mAmerican Airlines
Sat 10/119:45 amORD - MLI
Nonstop1h 07mAmerican Airlines
Deal found 9/10$179
This American Airlines deal was found by Cheapflights users on 9/9. 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 9/231:41 pmCID - ORD
Nonstop1h 22mAmerican Airlines
Wed 10/112:01 pmORD - CID
Nonstop1h 10mAmerican Airlines
Deal found 9/9$184
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Thu 9/256:29 pmCID - ORD
Nonstop1h 26mUnited Airlines
Mon 9/298:20 pmORD - CID
Nonstop1h 20mUnited Airlines
Deal found 9/10$189
This American Airlines deal was found by Cheapflights users on 9/10. 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.
Fri 10/35:00 amDSM - ORD
Nonstop1h 28mAmerican Airlines
Sun 10/56:45 amORD - DSM
Nonstop1h 24mAmerican Airlines
Deal found 9/10$189
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/137:46 pmOMA - MDW
2 stops21h 29mFrontier
Sun 11/1612:30 pmMDW - OMA
1 stop6h 21mFrontier
Deal found 9/10$189
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Thu 10/91:04 pmOMA - ORD
Nonstop1h 51mUnited Airlines
Thu 10/168:52 amORD - OMA
Nonstop1h 39mUnited Airlines
Deal found 9/11$189

Cheapflights Fare Finder

 
Customize your flight search to find flights from Iowa 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 September 11, 2025.
Use the filters below to find and compare flights from Iowa to Illinois that are best for you.

Fly from

Iowa

Fly to

Illinois

Route

Depart

Return

Price

Des MoinesSt. Louis

DSM - STL

DSMSTL

Des Moines

Mon 11/3

6:15 am-7:25 am

Nonstop1h 10m

Lambert-St Louis

Mon 11/3

10:15 am-11:25 am

Nonstop1h 10m

$157

Des MoinesSt. Louis

DSM - STL

DSMSTL

Des Moines

Wed 10/8

4:45 pm-5:55 pm

Nonstop1h 10m

Lambert-St Louis

Thu 10/9

10:20 pm-11:30 pm

Nonstop1h 10m

$157

OmahaSt. Louis

OMA - STL

OMASTL

Omaha Eppley Airfield

Mon 10/6

2:16 pm-9:07 am

1 stop18h 51m

Lambert-St Louis

Thu 10/9

7:52 pm-8:04 pm

1 stop24h 12m

$170

Des MoinesSt. Louis

DSM - STL

DSMSTL

Des Moines

Fri 11/14

6:33 pm-11:40 pm

1 stop5h 07m

Lambert-St Louis

Sat 11/15

5:34 pm-9:04 pm

1 stop3h 30m

$177

Des MoinesSt. Louis

DSM - STL

DSMSTL

Des Moines

Mon 11/3

8:02 am-12:28 pm

1 stop4h 26m

Lambert-St Louis

Mon 11/3

5:24 pm-9:32 pm

1 stop4h 08m

$177

Des MoinesSt. Louis

DSM - STL

DSMSTL

Des Moines

Tue 9/30

5:25 pm-11:09 pm

1 stop5h 44m

Lambert-St Louis

Thu 10/2

1:26 pm-5:45 pm

1 stop4h 19m

$177

Des MoinesSt. Louis

DSM - STL

DSMSTL

Des Moines

Wed 10/22

5:32 pm-11:07 pm

1 stop5h 35m

Lambert-St Louis

Thu 10/23

6:00 am-10:26 am

1 stop4h 26m

$177

Des MoinesSt. Louis

DSM - STL

DSMSTL

Des Moines

Wed 10/22

11:06 am-4:46 pm

1 stop5h 40m

Lambert-St Louis

Sun 10/26

6:00 am-10:26 am

1 stop4h 26m

$177

Des MoinesSt. Louis

DSM - STL

DSMSTL

Des Moines

Thu 10/23

6:05 am-1:22 pm

1 stop7h 17m

Lambert-St Louis

Sun 10/26

6:00 am-10:26 am

1 stop4h 26m

$177

Cedar RapidsChicago

CID - ORD

CIDORD

Cedar Rapids

Fri 10/17

1:00 pm-2:14 pm

Nonstop1h 14m

Chicago O'Hare Intl

Sat 10/18

8:21 am-9:32 am

Nonstop1h 11m

$179

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 60 results
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Best time to book a flight from Iowa to Illinois

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

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

Currently, August is the cheapest month in which you can book a flight from Iowa to Illinois (average of $245). Flying from Iowa to Illinois in March is currently the most expensive (average of $321). 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 IA to IL?

Find hourly flight availability from Iowa 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 September 11, 2025.

When flying from Iowa to Illinois, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Iowa to Illinois

Explore weekly flight availability from Iowa to Illinois. 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 September 11, 2025.

The most flights from USIA to USIL are scheduled on a Monday (46 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (24 on average).

How much does it cost to fly round-trip from Iowa to Illinois?

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 September 11, 2025.
See what other customers who have flown with Southwest, United Airlines, and American Airlines from Iowa to Illinois have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,248 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,248 reviews
Southwest
8.0
Very good
4,248 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
8,937 reviews
Southwest
8.0
Very good
4,248 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,248 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

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

  • How long is the flight from Iowa to Illinois?

    A quick flight from Iowa to Illinois can take about 1h 10m. Southwest provides one of the quickest options available for as low as $157. Airlines will cover a distance of 259 mi. This flight may include one or multiple stops.

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

    One-way options have recently been found by users for as low as $51 on Southwest. Other airlines that offer cheap prices include United Airlines from $51 and Frontier from $82 one-way.

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

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

  • How can I find direct flights from Iowa to Illinois?

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

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

    Yes. Cheapflights offers flight deals from Iowa 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 Iowa to Illinois?

    Currently, August is the cheapest month in which you can book a flight from Iowa to Illinois (average of $245). Flying from Iowa to Illinois in March is currently the most expensive (average of $321). 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Iowa to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Iowa to Illinois

Discover the top 4 airlines that operate flights from Iowa 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Southern / MokuleleCheapest$72Average$103FlexibilityNo cancel feeOn-timeN/A
Denver Air ConnectionCheapest$129Average$172FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$179Average$303FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$179Average$256FlexibilityNo cancel feeOn-time69%

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