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$59+ Cheap flights from Iowa to St. Louis (STL)

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 3/20. Fares are subject to change and may not be available on all flights or dates of travel.
DSM — STL
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
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Cheap flight deals from Iowa to St. Louis

Keep the following information in mind while searching for Iowa to St. Louis flight deals. Data was last updated February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$132
(Southwest)

One-way from

$59
(Southwest)

Popular in

September

Cheapest in

August

Average price

$432

Good round-trip deal

$380 or less

Good one-way deal

$183 or less
Provider with most accurate pricing for Des Moines-Lambert-St Louis flight deals.
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Provider most trusted by Cheapflights users for Des Moines-Lambert-St Louis flights.
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From Iowa to Lambert-St Louis
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One-way flight from Iowa to Lambert-St Louis
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Highest demand for flights based on searches. 4% potential increase in price ($17 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($25 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 Lambert-St Louis.
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Price to beat on a one-way flight from Iowa to Lambert-St Louis.
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Find flight deals from Iowa to St. Louis

Cheapest flights from Iowa to St. Louis
Explore the most affordable flight options available from Iowa to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 20, 2025.

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.
Thu 3/65:45 amDSM - STL
Nonstop1h 10mSouthwest
Fri 3/710:45 pmSTL - DSM
Nonstop1h 10mSouthwest
Deal found 2/20$132
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.
Thu 3/276:50 pmOMA - STL
Nonstop1h 10mSouthwest
Mon 3/3110:45 pmSTL - OMA
Nonstop1h 20mSouthwest
Deal found 2/20$177
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/66:26 pmDSM - STL
1 stop5h 11mDelta
Fri 3/76:00 amSTL - DSM
1 stop5h 31mDelta
Deal found 2/20$177
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.
Thu 3/275:49 pmOMA - STL
1 stop4h 29mAmerican Airlines
Mon 3/315:55 amSTL - OMA
1 stop4h 19mAmerican Airlines
Deal found 2/20$197
This American Airlines deal was found by Cheapflights users on 2/19. 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.
Wed 3/196:27 pmALO - STL
1 stop3h 51mAmerican Airlines
Wed 3/265:55 amSTL - ALO
1 stop3h 30mAmerican Airlines
Deal found 2/19$219
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/288:41 pmDSM - STL
1 stop12h 35mFrontier
Sun 3/25:20 pmSTL - DSM
1 stop24h 54mFrontier
Deal found 2/20$338
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/1411:38 amOMA - STL
2 stops29h 38mMultiple Airlines
Thu 4/176:11 pmSTL - OMA
2 stops24h 30mMultiple Airlines
Deal found 2/20$361
This United 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/256:39 pmOMA - STL
1 stop20h 06mUnited Airlines
Tue 4/298:48 amSTL - OMA
2 stops8h 49mUnited Airlines
Deal found 2/20$398
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/211:17 amOMA - STL
1 stop3h 33mDelta
Thu 3/66:00 amSTL - OMA
1 stop6h 27mDelta
Deal found 2/20$421
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/278:30 amDSM - STL
3 stops34h 11mMultiple Airlines
Sun 3/24:00 pmSTL - DSM
2 stops31h 25mMultiple Airlines
Deal found 2/20$591
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/2711:29 amDSM - STL
2 stops10h 37mUnited Airlines
Sun 3/26:30 amSTL - DSM
1 stop4h 07mUnited Airlines
Deal found 2/20$598
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/133:12 pmOMA - STL
2 stops18h 25mAlaska Airlines
Thu 4/179:41 amSTL - OMA
2 stops28h 35mAlaska Airlines
Deal found 2/20$938

Find flights from Iowa to St. Louis within your budget

Customize your flight search to find flights from Iowa to St. Louis 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 20, 2025.

Fly from

Iowa

Fly to

St. Louis

Route

Depart

Return

Price

Des MoinesSt. Louis

DSM - STL

DSMSTL

Des Moines

Thu 3/6

5:45 am-6:55 am

Nonstop1h 10m

Lambert-St Louis

Fri 3/7

10:45 pm-11:55 pm

Nonstop1h 10m

$132

Des MoinesSt. Louis

DSM - STL

DSMSTL

Des Moines

Thu 3/6

6:26 pm-11:37 pm

1 stop5h 11m

Lambert-St Louis

Fri 3/7

6:00 am-11:31 am

1 stop5h 31m

$177

OmahaSt. Louis

OMA - STL

OMASTL

Omaha Eppley Airfield

Thu 3/27

6:50 pm-8:00 pm

Nonstop1h 10m

Lambert-St Louis

Mon 3/31

10:45 pm-12:05 am

Nonstop1h 20m

$177

OmahaSt. Louis

OMA - STL

OMASTL

Omaha Eppley Airfield

Thu 3/27

5:49 pm-10:18 pm

1 stop4h 29m

Lambert-St Louis

Mon 3/31

5:55 am-10:14 am

1 stop4h 19m

$197

WaterlooSt. Louis

ALO - STL

ALOSTL

Waterloo

Wed 3/19

6:27 pm-10:18 pm

1 stop3h 51m

Lambert-St Louis

Wed 3/26

5:55 am-9:25 am

1 stop3h 30m

$219

OmahaSt. Louis

OMA - STL

OMASTL

Omaha Eppley Airfield

Mon 4/14

11:38 am-5:16 pm

2 stops29h 38m

Lambert-St Louis

Thu 4/17

6:11 pm-6:41 pm

2 stops24h 30m

$361

OmahaSt. Louis

OMA - STL

OMASTL

Omaha Eppley Airfield

Fri 4/25

6:39 pm-2:45 pm

1 stop20h 06m

Lambert-St Louis

Tue 4/29

8:48 am-5:37 pm

2 stops8h 49m

$398

OmahaSt. Louis

OMA - STL

OMASTL

Omaha Eppley Airfield

Sun 3/2

11:17 am-2:50 pm

1 stop3h 33m

Lambert-St Louis

Thu 3/6

6:00 am-12:27 pm

1 stop6h 27m

$421

Des MoinesSt. Louis

DSM - STL

DSMSTL

Des Moines

Thu 3/6

5:45 am-3:31 pm

2 stops9h 46m

Lambert-St Louis

Fri 3/7

10:03 am-2:19 pm

1 stop4h 16m

$655

OmahaSt. Louis

OMA - STL

OMASTL

Omaha Eppley Airfield

Sun 4/13

3:12 pm-9:37 am

2 stops18h 25m

Lambert-St Louis

Thu 4/17

9:41 am-2:16 pm

2 stops28h 35m

$938

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

Showing 1-10 of 18 results
1
2

Best time to book a flight from Iowa to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis 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 St. Louis

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

What is the cheapest month to book a flight from Iowa to St. Louis?

Currently, August is the cheapest month in which you can book a flight from Iowa to St. Louis (average of $311). Flying from Iowa to St. Louis in March is currently the most expensive (average of $356). 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 STL?

Find hourly flight availability from Iowa to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 20, 2025.

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

Rainfall in St. Louis by month

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

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

Temperature in St. Louis by month

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

If weather is an important factor for your trip to St. Louis, 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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated February 20, 2025.
To help decide which airline to fly from Iowa to St. Louis, see what other customers have to say about Southwest, Alaska Airlines and Delta. 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
4,411 reviews

Entertainment

7.6

Overall

8.1

Food

7.1

Crew

8.7

Boarding

8.2

Comfort

8.1

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
4,411 reviews
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Overall

8.1

Food

7.1

Crew

8.7

Boarding

8.2

Comfort

8.1

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
9,692 reviews
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Overall

8.1

Food

7.1

Crew

8.7

Boarding

8.2

Comfort

8.1

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
8,220 reviews
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Overall

8.1

Food

7.1

Crew

8.7

Boarding

8.2

Comfort

8.1

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
8,766 reviews
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Overall

8.1

Food

7.1

Crew

8.7

Boarding

8.2

Comfort

8.1

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.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Overall

8.1

Food

7.1

Crew

8.7

Boarding

8.2

Comfort

8.1

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 St. Louis. 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 into for flights to St. Louis from Iowa?

    Lambert-St Louis (STL) is the airport you will fly into if you book a flight from Iowa to St. Louis. It is only a 12.7 mi journey from Lambert-St Louis (STL) to St. Louis’s city center.

  • How popular is this Iowa to St. Louis flight route?

    Within the past month, 18 users have taken a look at flights from Iowa to Lambert-St Louis.

  • What are the cheapest airlines to fly from Iowa to St. Louis one-way?

    $59 is the cheapest one-way deal found within the past few days, from Southwest. You may also be able to find cheap deals on American Airlines and Delta, with prices starting from $80 and $89, respectively.

  • What are the most popular routes from Iowa to St. Louis?

    The most popular flight routes from Iowa to St. Louis are Omaha Eppley Airfield - Lambert-St Louis, Des Moines - Lambert-St Louis and La Crosse - Lambert-St Louis.

  • What are the cheapest flights from Iowa to St. Louis?

    On average you can expect to pay $329 for a flight from Iowa to St. Louis. The cheapest flight overall is $148 while the most popular route, (Omaha Eppley Airfield - Lambert-St Louis) is currently priced at $274.

  • Can I find deals for flights from Iowa to St. Louis that include hotel bookings?

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

  • How can I find direct flights from Iowa to St. Louis?

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

  • Can I find deals for business class flights from Iowa to St. Louis?

    Yes. Cheapflights offers flight deals from Iowa to St. Louis 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 St. Louis?

    Currently, August is the cheapest month in which you can book a flight from Iowa to St. Louis (average of $311). Flying from Iowa to St. Louis in March is currently the most expensive (average of $356). 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

Traveling to a place near Iowa?

Book flights to Iowa if you plan to visit one of these locations
Fenton
Fairview Heights
Maryland Heights
Collinsville
Wentzville
Eureka
St. Peters
Festus
Alton
Farmington
Chesterfield

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Alternative routes for Iowa to St. Louis

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 St. Louis

Discover the top 4 airlines that operate flights from Iowa to St. Louis. 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 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$155Average$470FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$158Average$397FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$168Average$332FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$217Average$380FlexibilityNo cancel feeOn-time69%
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