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$49+ 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 9/2. Fares are subject to change and may not be available on all flights or dates of travel.
DSM — ORD
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
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 July 3, 2025.

Round-trip from

$97
(Southwest)

One-way from

$49
(Southwest)

Popular in

August

Cheapest in

May

Average price

$289

Good round-trip deal

$318 or less

Good one-way deal

$153 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. 5% potential increase in price ($15 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($4 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 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 July 3, 2025.

This Southwest deal was found by Cheapflights users on 7/2. 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.
Thu 8/76:00 amDSM - STL
Nonstop1h 05mSouthwest
Mon 8/119:40 pmSTL - DSM
Nonstop1h 10mSouthwest
Deal found 7/2$97
This American Airlines deal was found by Cheapflights users on 7/1. 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.
Mon 9/152:57 pmOMA - STL
1 stop8h 10mAmerican Airlines
Wed 9/178:50 amSTL - OMA
1 stop6h 05mAmerican Airlines
Deal found 7/1$159
This American Airlines deal was found by Cheapflights users on 7/1. 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 8/76:12 pmDSM - STL
1 stop5h 43mAmerican Airlines
Mon 8/117:59 pmSTL - DSM
1 stop3h 25mAmerican Airlines
Deal found 7/1$159
This Delta deal was found by Cheapflights users on 7/2. 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 8/1611:23 amDSM - STL
1 stop7h 44mDelta
Sat 8/238:46 amSTL - DSM
1 stop5h 23mDelta
Deal found 7/2$167
This Southwest deal was found by Cheapflights users on 7/2. 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.
Sat 8/97:25 amOMA - MDW
Nonstop1h 25mSouthwest
Mon 8/119:00 pmMDW - OMA
Nonstop1h 25mSouthwest
Deal found 7/2$168
This United Airlines deal was found by Cheapflights users on 6/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/233:18 pmOMA - ORD
Nonstop1h 47mUnited Airlines
Mon 8/258:05 pmORD - OMA
Nonstop1h 43mUnited Airlines
Deal found 6/30$168
This Southwest deal was found by Cheapflights users on 6/30. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/215:20 amOMA - ORD
2 stops11h 05mSouthwest
Mon 8/252:55 pmORD - OMA
2 stops8h 00mSouthwest
Deal found 6/30$173
This Delta deal was found by Cheapflights users on 7/1. 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.
Thu 8/76:30 amOMA - MDW
1 stop5h 59mDelta
Tue 8/129:31 amMDW - OMA
1 stop3h 57mDelta
Deal found 7/1$177
This Delta deal was found by Cheapflights users on 7/1. 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 9/36:30 amOMA - ORD
1 stop3h 50mDelta
Tue 9/96:10 amORD - OMA
1 stop4h 03mDelta
Deal found 7/1$177
This American Airlines deal was found by Cheapflights users on 7/3. 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 8/1711:03 amCID - ORD
Nonstop1h 23mAmerican Airlines
Sun 8/249:15 amORD - CID
Nonstop1h 18mAmerican Airlines
Deal found 7/3$178
This American Airlines deal was found by Cheapflights users on 7/3. 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 10/119:55 amORD - MLI
Nonstop1h 04mAmerican Airlines
Deal found 7/3$179
This United Airlines deal was found by Cheapflights users on 7/2. 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 8/76:50 pmDSM - STL
1 stop3h 55mUnited Airlines
Mon 8/115:30 pmSTL - DSM
1 stop4h 17mUnited Airlines
Deal found 7/2$180

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 July 3, 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

Thu 8/7

6:00 am-7:05 am

Nonstop1h 05m

Lambert-St Louis

Mon 8/11

9:40 pm-10:50 pm

Nonstop1h 10m

$97

OmahaSt. Louis

OMA - STL

OMASTL

Omaha Eppley Airfield

Mon 9/15

2:57 pm-11:07 pm

1 stop8h 10m

Lambert-St Louis

Wed 9/17

8:50 am-2:55 pm

1 stop6h 05m

$159

Des MoinesSt. Louis

DSM - STL

DSMSTL

Des Moines

Thu 8/7

6:12 pm-11:55 pm

1 stop5h 43m

Lambert-St Louis

Mon 8/11

7:59 pm-11:24 pm

1 stop3h 25m

$159

Des MoinesSt. Louis

DSM - STL

DSMSTL

Des Moines

Sat 8/16

11:23 am-7:07 pm

1 stop7h 44m

Lambert-St Louis

Sat 8/23

8:46 am-2:09 pm

1 stop5h 23m

$167

OmahaChicago

OMA - ORD

OMAORD

Omaha Eppley Airfield

Sat 8/23

3:18 pm-5:05 pm

Nonstop1h 47m

Chicago O'Hare Intl

Mon 8/25

8:05 pm-9:48 pm

Nonstop1h 43m

$168

OmahaChicago

OMA - MDW

OMAMDW

Omaha Eppley Airfield

Sat 8/9

7:25 am-8:50 am

Nonstop1h 25m

Chicago Midway

Mon 8/11

9:00 pm-10:25 pm

Nonstop1h 25m

$168

OmahaChicago

OMA - ORD

OMAORD

Omaha Eppley Airfield

Thu 8/21

5:20 am-4:25 pm

2 stops11h 05m

Chicago O'Hare Intl

Mon 8/25

7:00 am-7:05 pm

1 stop12h 05m

$173

OmahaChicago

OMA - MDW

OMAMDW

Omaha Eppley Airfield

Thu 8/7

6:30 am-12:29 pm

1 stop5h 59m

Chicago Midway

Tue 8/12

9:31 am-1:28 pm

1 stop3h 57m

$177

OmahaChicago

OMA - ORD

OMAORD

Omaha Eppley Airfield

Wed 9/3

6:30 am-10:20 am

1 stop3h 50m

Chicago O'Hare Intl

Tue 9/9

6:10 am-10:13 am

1 stop4h 03m

$177

Cedar RapidsChicago

CID - ORD

CIDORD

Cedar Rapids

Sun 8/17

11:03 am-12:26 pm

Nonstop1h 23m

Chicago O'Hare Intl

Sun 8/24

9:15 am-10:33 am

Nonstop1h 18m

$178

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

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 July 3, 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 July 3, 2025.

The most flights from USIA to USIL are scheduled on a Thursday (46 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (7 on average).

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 July 3, 2025.
See what other customers who have flown with Alaska Airlines, Southwest, and Delta from Iowa to Illinois have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Entertainment

7.1

Boarding

8.1

Food

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Entertainment

7.1

Boarding

8.1

Food

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,266 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Entertainment

7.1

Boarding

8.1

Food

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,982 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Entertainment

7.1

Boarding

8.1

Food

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,861 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Entertainment

7.1

Boarding

8.1

Food

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Crew

8.5

Entertainment

7.1

Boarding

8.1

Food

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 $49 on Southwest. Other airlines that offer cheap prices include Frontier from $64 and United Airlines from $69 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

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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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
Southern / MokuleleCheapest$72Average$103FlexibilityNo cancel feeOn-timeN/A
Denver Air ConnectionCheapest$129Average$170FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$147Average$257FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$179Average$338FlexibilityNo cancel feeOn-time71%

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