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$55+ 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 4/14. Fares are subject to change and may not be available on all flights or dates of travel.
DSM — ORD
Feb 27 — Mar 61
Thu 2/27
Thu 3/6
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 February 22, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$117
(Southwest)

One-way from

$55
(Frontier)

Popular in

June

Cheapest in

November

Average price

$295

Good round-trip deal

$130 or less

Good one-way deal

$64 or less
Provider with most accurate pricing for Des Moines-Chicago (CHI) flight deals.
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Provider most trusted by Cheapflights users for Des Moines-Chicago (CHI) flights.
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From Iowa to Illinois
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One-way flight from Iowa to Illinois
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($31 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in February 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 February 22, 2025.

This Southwest deal was found by Cheapflights users on 2/21. 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.
Mon 4/285:30 pmDSM - STL
Nonstop1h 05mSouthwest
Thu 5/19:55 pmSTL - DSM
Nonstop1h 10mSouthwest
Deal found 2/21$117
This American Airlines deal was found by Cheapflights users on 2/22. 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 4/85:00 amDSM - STL
1 stop5h 25mAmerican Airlines
Tue 4/157:04 amSTL - DSM
1 stop5h 03mAmerican Airlines
Deal found 2/22$160
This Flightnetwork deal was found by Cheapflights users on 2/21. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/48:17 pmDSM - ORD
1 stop17h 00mFrontier
Fri 4/116:40 amORD - DSM
1 stop12h 37mFrontier
Deal found 2/21$172
This Delta deal was found by Cheapflights users on 2/21. 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 3/105:59 pmDSM - STL
1 stop5h 04mDelta
Thu 3/136:00 amSTL - DSM
1 stop5h 14mDelta
Deal found 2/21$177
This American Airlines deal was found by Cheapflights users on 2/22. 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 3/216:32 pmMLI - ORD
Nonstop1h 07mAmerican Airlines
Sun 3/309:05 pmORD - MLI
Nonstop1h 11mAmerican Airlines
Deal found 2/22$179
This United Airlines deal was found by Cheapflights users on 2/21. 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.
Wed 4/23:34 pmDSM - ORD
Nonstop1h 30mUnited Airlines
Wed 4/99:09 amORD - DSM
Nonstop1h 31mUnited Airlines
Deal found 2/21$189
This American Airlines deal was found by Cheapflights users on 2/22. 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 4/811:54 amDSM - ORD
Nonstop1h 31mAmerican Airlines
Tue 4/151:05 pmORD - DSM
Nonstop1h 28mAmerican Airlines
Deal found 2/22$190
This United Airlines deal was found by Cheapflights users on 2/21. 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.
Fri 3/73:50 pmMLI - ORD
Nonstop1h 07mUnited Airlines
Tue 3/112:10 pmORD - MLI
Nonstop1h 04mUnited Airlines
Deal found 2/21$190
This Southwest deal was found by Cheapflights users on 2/22. 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.
Fri 4/115:25 pmOMA - STL
Nonstop1h 15mSouthwest
Mon 4/145:10 pmSTL - OMA
1 stop4h 55mSouthwest
Deal found 2/22$202
This Southwest deal was found by Cheapflights users on 2/20. 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 3/124:05 pmOMA - MDW
Nonstop1h 30mSouthwest
Thu 3/138:25 amMDW - OMA
Nonstop1h 35mSouthwest
Deal found 2/20$207
This American Airlines deal was found by Cheapflights users on 2/20. 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 3/215:49 pmOMA - ORD
Nonstop1h 36mAmerican Airlines
Fri 3/288:30 amORD - OMA
Nonstop1h 44mAmerican Airlines
Deal found 2/20$207
This Delta deal was found by Cheapflights users on 2/21. 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.
Tue 4/111:55 amDSM - MDW
1 stop6h 23mDelta
Tue 4/82:57 pmMDW - DSM
1 stop5h 49mDelta
Deal found 2/21$209

Find flights from Iowa to Illinois within your budget

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 February 22, 2025.

Fly from

Iowa

Fly to

Illinois

Route

Depart

Return

Price

Des MoinesSt. Louis

DSM - STL

DSMSTL

Des Moines

Mon 4/28

5:30 pm-6:35 pm

Nonstop1h 05m

Lambert-St Louis

Thu 5/1

9:55 pm-11:05 pm

Nonstop1h 10m

$117

Des MoinesSt. Louis

DSM - STL

DSMSTL

Des Moines

Tue 4/8

5:00 am-10:25 am

1 stop5h 25m

Lambert-St Louis

Tue 4/15

7:04 am-12:07 pm

1 stop5h 03m

$160

Des MoinesChicago

DSM - ORD

DSMORD

Des Moines

Fri 4/4

8:17 pm-1:17 pm

1 stop17h 00m

Chicago O'Hare Intl

Fri 4/11

6:40 am-7:17 pm

1 stop12h 37m

$172

Des MoinesSt. Louis

DSM - STL

DSMSTL

Des Moines

Mon 3/10

5:59 pm-11:03 pm

1 stop5h 04m

Lambert-St Louis

Thu 3/13

6:00 am-11:14 am

1 stop5h 14m

$177

MolineChicago

MLI - ORD

MLIORD

Moline Quad-City

Fri 3/21

6:32 pm-7:39 pm

Nonstop1h 07m

Chicago O'Hare Intl

Sun 3/30

9:05 pm-10:16 pm

Nonstop1h 11m

$179

Des MoinesChicago

DSM - ORD

DSMORD

Des Moines

Wed 4/2

3:34 pm-5:04 pm

Nonstop1h 30m

Chicago O'Hare Intl

Wed 4/9

9:09 am-10:40 am

Nonstop1h 31m

$189

MolineChicago

MLI - ORD

MLIORD

Moline Quad-City

Fri 3/7

3:50 pm-4:57 pm

Nonstop1h 07m

Chicago O'Hare Intl

Tue 3/11

2:10 pm-3:14 pm

Nonstop1h 04m

$190

Des MoinesChicago

DSM - ORD

DSMORD

Des Moines

Tue 4/8

11:54 am-1:25 pm

Nonstop1h 31m

Chicago O'Hare Intl

Tue 4/15

1:05 pm-2:33 pm

Nonstop1h 28m

$190

OmahaSt. Louis

OMA - STL

OMASTL

Omaha Eppley Airfield

Fri 4/11

5:25 pm-6:40 pm

Nonstop1h 15m

Lambert-St Louis

Mon 4/14

5:10 pm-10:05 pm

1 stop4h 55m

$202

OmahaChicago

OMA - MDW

OMAMDW

Omaha Eppley Airfield

Wed 3/12

4:05 pm-5:35 pm

Nonstop1h 30m

Chicago Midway

Thu 3/13

8:25 am-10:00 am

Nonstop1h 35m

$207

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/21

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.

Travel insights for flights from Iowa to Illinois

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

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 February 22, 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 February 22, 2025.

The most flights from USIA to USIL are scheduled on a Wednesday (34 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (29 on average).

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 February 22, 2025.
Read reviews from past customers who have flown Southwest, Alaska Airlines and Delta from Iowa to Illinois. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,395 reviews

Entertainment

7.6

Boarding

8.2

Food

7.1

Overall

8.1

Comfort

8.1

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Southwest
8.1
Very good
4,395 reviews
Southwest
8.1
Very good
4,395 reviews

Entertainment

7.6

Boarding

8.2

Food

7.1

Overall

8.1

Comfort

8.1

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Alaska Airlines
8.0
Very good
9,706 reviews
Southwest
8.1
Very good
4,395 reviews

Entertainment

7.6

Boarding

8.2

Food

7.1

Overall

8.1

Comfort

8.1

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Delta
8.0
Very good
8,203 reviews
Southwest
8.1
Very good
4,395 reviews

Entertainment

7.6

Boarding

8.2

Food

7.1

Overall

8.1

Comfort

8.1

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

United Airlines
7.4
Good
8,754 reviews
Southwest
8.1
Very good
4,395 reviews

Entertainment

7.6

Boarding

8.2

Food

7.1

Overall

8.1

Comfort

8.1

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Allegiant Air
7.3
Good
764 reviews
Southwest
8.1
Very good
4,395 reviews

Entertainment

7.6

Boarding

8.2

Food

7.1

Overall

8.1

Comfort

8.1

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

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 $55 on Frontier. Other airlines that offer cheap prices include Southwest from $89 and United Airlines from $89 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 5 airlines flying from Iowa to Illinois

Discover the top 5 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 February 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
Southern / MokuleleCheapest$72Average$134FlexibilityNo cancel feeOn-timeN/A
Denver Air ConnectionCheapest$129Average$172FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$147Average$249FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$179Average$378FlexibilityNo cancel feeOn-time71%
DeltaCheapest$195Average$562FlexibilityNo cancel feeOn-timeN/A
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