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Illinois

$78+ 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 9/16. Fares are subject to change and may not be available on all flights or dates of travel.
DSM — ORD
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
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 August 14, 2025.

Round-trip from

$155
(Southwest)

One-way from

$78
(Southwest)

Popular in

July

Cheapest in

May

Average price

$276

Good round-trip deal

$162 or less

Good one-way deal

$69 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. 7% potential increase in price ($20 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 August 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 August 14, 2025.

This Southwest deal was found by Cheapflights users on 8/12. 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.
Tue 9/912:25 pmOMA - STL
Nonstop1h 15mSouthwest
Tue 9/168:45 pmSTL - OMA
Nonstop1h 15mSouthwest
Deal found 8/12$155
This Delta deal was found by Cheapflights users on 8/14. 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.
Sat 11/1512:05 pmCID - ORD
1 stop4h 42mDelta
Wed 12/106:00 amORD - CID
1 stop5h 33mDelta
Deal found 8/14$169
This Southwest deal was found by Cheapflights users on 8/14. 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.
Tue 9/301:45 pmOMA - MDW
2 stops8h 10mSouthwest
Tue 10/78:20 pmMDW - OMA
Nonstop1h 30mSouthwest
Deal found 8/14$170
This FlightHub deal was found by Cheapflights users on 8/14. 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.
Fri 9/198:35 pmOMA - ORD
1 stop24h 53mFrontier
Mon 9/226:00 amORD - OMA
1 stop7h 21mFrontier
Deal found 8/14$171
This FlightHub deal was found by Cheapflights users on 8/14. 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.
Fri 9/58:35 pmOMA - STL
1 stop12h 31mFrontier
Sun 9/77:55 pmSTL - OMA
1 stop17h 26mFrontier
Deal found 8/14$171
This Delta deal was found by Cheapflights users on 8/14. 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.
Sat 11/1512:05 pmCID - ORD
2 stops8h 31mDelta
Sat 12/63:50 pmORD - CID
1 stop6h 38mDelta
Deal found 8/14$175
This Southwest deal was found by Cheapflights users on 8/14. 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.
Tue 9/303:40 pmOMA - ORD
1 stop7h 25mSouthwest
Tue 10/77:30 amORD - OMA
1 stop7h 25mSouthwest
Deal found 8/14$175
This American Airlines deal was found by Cheapflights users on 8/12. 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 9/94:00 pmOMA - STL
1 stop5h 53mAmerican Airlines
Tue 9/166:29 amSTL - OMA
1 stop7h 37mAmerican Airlines
Deal found 8/12$175
This Southwest deal was found by Cheapflights users on 8/14. 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 9/173:10 pmOMA - MDW
1 stop8h 10mSouthwest
Thu 9/188:10 amMDW - OMA
Nonstop1h 30mSouthwest
Deal found 8/14$176
This Delta deal was found by Cheapflights users on 8/12. 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 9/32:10 pmOMA - MDW
1 stop4h 27mDelta
Tue 9/169:35 amMDW - OMA
1 stop3h 53mDelta
Deal found 8/12$177
This United Airlines deal was found by Cheapflights users on 8/14. 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 9/116:27 pmOMA - ORD
Nonstop1h 47mUnited Airlines
Thu 9/188:45 amORD - OMA
Nonstop1h 39mUnited Airlines
Deal found 8/14$177
This American Airlines deal was found by Cheapflights users on 8/14. 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.
Thu 9/412:04 pmOMA - ORD
Nonstop1h 45mAmerican Airlines
Mon 9/87:17 amORD - OMA
Nonstop1h 41mAmerican Airlines
Deal found 8/14$178

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 August 14, 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

OmahaSt. Louis

OMA - STL

OMASTL

Omaha Eppley Airfield

Tue 9/9

12:25 pm-1:40 pm

Nonstop1h 15m

Lambert-St Louis

Tue 9/16

8:45 pm-10:00 pm

Nonstop1h 15m

$155

OmahaChicago

OMA - MDW

OMAMDW

Omaha Eppley Airfield

Tue 9/30

1:45 pm-9:55 pm

2 stops8h 10m

Chicago Midway

Tue 10/7

8:20 pm-9:50 pm

Nonstop1h 30m

$170

OmahaChicago

OMA - ORD

OMAORD

Omaha Eppley Airfield

Fri 9/26

8:35 pm-9:28 pm

1 stop24h 53m

Chicago O'Hare Intl

Mon 9/29

6:00 am-1:21 pm

1 stop7h 21m

$171

OmahaChicago

OMA - ORD

OMAORD

Omaha Eppley Airfield

Fri 9/19

8:35 pm-9:28 pm

1 stop24h 53m

Chicago O'Hare Intl

Mon 9/22

6:00 am-1:21 pm

1 stop7h 21m

$171

OmahaSt. Louis

OMA - STL

OMASTL

Omaha Eppley Airfield

Thu 11/6

7:46 pm-9:07 am

1 stop13h 21m

Lambert-St Louis

Sun 11/9

7:45 pm-8:06 pm

1 stop24h 21m

$171

OmahaSt. Louis

OMA - STL

OMASTL

Omaha Eppley Airfield

Fri 9/5

8:35 pm-9:06 am

1 stop12h 31m

Lambert-St Louis

Sun 9/7

7:55 pm-1:21 pm

1 stop17h 26m

$171

OmahaSt. Louis

OMA - STL

OMASTL

Omaha Eppley Airfield

Tue 9/9

7:08 am-1:23 pm

1 stop6h 15m

Lambert-St Louis

Tue 9/16

6:10 am-11:31 am

1 stop5h 21m

$175

OmahaChicago

OMA - ORD

OMAORD

Omaha Eppley Airfield

Tue 9/30

3:40 pm-11:05 pm

1 stop7h 25m

Chicago O'Hare Intl

Tue 10/7

7:30 am-2:55 pm

1 stop7h 25m

$175

OmahaChicago

OMA - MDW

OMAMDW

Omaha Eppley Airfield

Sat 11/8

7:25 am-9:00 am

Nonstop1h 35m

Chicago Midway

Wed 11/12

2:35 pm-9:10 pm

1 stop6h 35m

$176

OmahaChicago

OMA - MDW

OMAMDW

Omaha Eppley Airfield

Tue 9/30

1:45 pm-7:45 pm

1 stop6h 00m

Chicago Midway

Mon 10/6

12:40 pm-2:05 pm

Nonstop1h 25m

$176

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/12

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 August 14, 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 August 14, 2025.

The most flights from USIA to USIL are scheduled on a Thursday (48 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (19 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 August 14, 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
4,244 reviews

Entertainment

7.5

Boarding

8.1

Overall

8.0

Crew

8.6

Comfort

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,244 reviews
Southwest
8.0
Very good
4,244 reviews

Entertainment

7.5

Boarding

8.1

Overall

8.0

Crew

8.6

Comfort

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
United Airlines
7.4
Good
8,916 reviews
Southwest
8.0
Very good
4,244 reviews

Entertainment

7.5

Boarding

8.1

Overall

8.0

Crew

8.6

Comfort

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,244 reviews

Entertainment

7.5

Boarding

8.1

Overall

8.0

Crew

8.6

Comfort

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

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.

  • 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 $78 on Southwest. Other airlines that offer cheap prices include United Airlines from $78 and Frontier from $81 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 August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
Southern / MokuleleCheapest$72Average$103FlexibilityNo cancel feeOn-timeN/A
Denver Air ConnectionCheapest$129Average$171FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$147Average$259FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$179Average$290FlexibilityNo cancel feeOn-time71%

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