HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
St. Louis

$69+ 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 3/10. Fares are subject to change and may not be available on all flights or dates of travel.
DSM — STL
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Iowa to St. Louis with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Iowa to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Iowa (USIA) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 21, 2025.

Round-trip from

$132
(Southwest)

One-way from

$69
(Southwest)

Good round-trip deal

$84 or less

Good one-way deal

$200 or less
From Iowa to Lambert-St Louis
Search Deals
One-way flight from Iowa to Lambert-St Louis
Search Deals
Price to beat on a round-trip flight from Iowa to Lambert-St Louis.
Search Deals
Price to beat on a one-way flight from Iowa to Lambert-St Louis.
Search Deals

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 January 21, 2025.

This Southwest deal was found by Cheapflights users on 1/21. 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.
Wed 2/196:30 amDSM - STL
Nonstop1h 20mSouthwest
Wed 2/1911:10 amSTL - DSM
Nonstop1h 10mSouthwest
Deal found 1/21$132
This American Airlines deal was found by Cheapflights users on 1/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/106:16 pmDSM - STL
1 stop4h 02mAmerican Airlines
Tue 3/115:55 amSTL - DSM
1 stop5h 34mAmerican Airlines
Deal found 1/21$159
This Delta deal was found by Cheapflights users on 1/20. 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.
Tue 2/2512:15 pmDSM - STL
2 stops9h 34mDelta
Thu 2/276:00 amSTL - DSM
1 stop4h 40mDelta
Deal found 1/20$182
This FlightHub deal was found by Cheapflights users on 1/20. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/249:02 pmOMA - STL
1 stop12h 59mFrontier
Sat 4/266:51 pmSTL - OMA
1 stop25h 11mFrontier
Deal found 1/20$240
This Southwest deal was found by Cheapflights users on 1/20. 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.
Sat 3/226:10 pmOMA - STL
1 stop5h 10mSouthwest
Mon 3/2410:45 pmSTL - OMA
Nonstop1h 20mSouthwest
Deal found 1/20$311
This CheapOair deal was found by Cheapflights users on 1/20. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/910:57 amDSM - STL
1 stop12h 34mFrontier
Sun 2/165:20 pmSTL - DSM
1 stop24h 57mFrontier
Deal found 1/20$340
This Delta deal was found by Cheapflights users on 1/20. 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.
Wed 2/196:45 amOMA - STL
1 stop4h 14mDelta
Fri 2/215:30 pmSTL - OMA
1 stop5h 27mDelta
Deal found 1/20$351
This American Airlines deal was found by Cheapflights users on 1/20. 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.
Sat 10/114:11 pmOMA - STL
1 stop6h 23mAmerican Airlines
Sun 10/126:27 pmSTL - OMA
1 stop5h 13mAmerican Airlines
Deal found 1/20$372
This American Airlines deal was found by Cheapflights users on 1/20. 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.
Tue 2/45:00 pmLSE - STL
1 stop5h 09mAmerican Airlines
Sat 2/811:47 amSTL - LSE
1 stop4h 16mAmerican Airlines
Deal found 1/20$434
This United Airlines deal was found by Cheapflights users on 1/20. 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.
Wed 2/195:26 pmOMA - STL
2 stops18h 46mUnited Airlines
Fri 2/214:39 pmSTL - OMA
1 stop6h 36mUnited Airlines
Deal found 1/20$452
This United Airlines deal was found by Cheapflights users on 1/21. 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 2/511:35 amDSM - STL
1 stop6h 01mUnited Airlines
Sun 2/92:55 pmSTL - DSM
1 stop6h 57mUnited Airlines
Deal found 1/21$453
This Mytrip deal was found by Cheapflights users on 1/21. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/156:30 pmDSM - STL
2 stops22h 12mMultiple Airlines
Sun 3/235:17 pmSTL - DSM
3 stops29h 58mMultiple Airlines
Deal found 1/21$808

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 January 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

Des MoinesSt. Louis

DSM - STL

DSMSTL

Des Moines

Wed 2/19

6:30 am-7:50 am

Nonstop1h 20m

Lambert-St Louis

Wed 2/19

11:10 am-12:20 pm

Nonstop1h 10m

$132

Des MoinesSt. Louis

DSM - STL

DSMSTL

Des Moines

Mon 3/10

6:16 pm-10:18 pm

1 stop4h 02m

Lambert-St Louis

Tue 3/11

5:55 am-11:29 am

1 stop5h 34m

$159

Des MoinesSt. Louis

DSM - STL

DSMSTL

Des Moines

Tue 2/25

12:15 pm-9:49 pm

2 stops9h 34m

Lambert-St Louis

Thu 2/27

6:00 am-10:40 am

1 stop4h 40m

$182

OmahaSt. Louis

OMA - STL

OMASTL

Omaha Eppley Airfield

Thu 4/24

9:02 pm-10:01 am

1 stop12h 59m

Lambert-St Louis

Sat 4/26

6:51 pm-8:02 pm

1 stop25h 11m

$240

OmahaSt. Louis

OMA - STL

OMASTL

Omaha Eppley Airfield

Sat 3/22

6:10 pm-11:20 pm

1 stop5h 10m

Lambert-St Louis

Mon 3/24

10:45 pm-12:05 am

Nonstop1h 20m

$311

Des MoinesSt. Louis

DSM - STL

DSMSTL

Des Moines

Sun 2/9

10:57 am-11:31 pm

1 stop12h 34m

Lambert-St Louis

Sun 2/16

5:20 pm-6:17 pm

1 stop24h 57m

$340

OmahaSt. Louis

OMA - STL

OMASTL

Omaha Eppley Airfield

Tue 2/4

6:45 am-10:54 am

1 stop4h 09m

Lambert-St Louis

Wed 2/5

6:00 am-10:28 am

1 stop4h 28m

$409

La CrosseSt. Louis

LSE - STL

LSESTL

La Crosse

Tue 2/4

5:00 pm-10:09 pm

1 stop5h 09m

Lambert-St Louis

Sat 2/8

11:47 am-4:03 pm

1 stop4h 16m

$434

OmahaSt. Louis

OMA - STL

OMASTL

Omaha Eppley Airfield

Wed 2/19

5:26 pm-12:12 pm

2 stops18h 46m

Lambert-St Louis

Fri 2/21

4:39 pm-11:15 pm

1 stop6h 36m

$452

Des MoinesSt. Louis

DSM - STL

DSMSTL

Des Moines

Wed 2/5

11:35 am-5:36 pm

1 stop6h 01m

Lambert-St Louis

Sun 2/9

2:55 pm-9:52 pm

1 stop6h 57m

$453

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

Showing 1-10 of 24 results
1
2
3

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 January 21, 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 January 21, 2025.
To help decide which airline to fly from Iowa to St. Louis, see what other customers have to say about Southwest, American 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
4,662 reviews

Overall

8.1

Comfort

8.1

Boarding

8.2

Food

7.2

Crew

8.7

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,662 reviews
Southwest
8.1
Very good
4,662 reviews

Overall

8.1

Comfort

8.1

Boarding

8.2

Food

7.2

Crew

8.7

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Alaska Airlines
8.0
Very good
9,706 reviews
Southwest
8.1
Very good
4,662 reviews

Overall

8.1

Comfort

8.1

Boarding

8.2

Food

7.2

Crew

8.7

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,521 reviews
Southwest
8.1
Very good
4,662 reviews

Overall

8.1

Comfort

8.1

Boarding

8.2

Food

7.2

Crew

8.7

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
8,984 reviews
Southwest
8.1
Very good
4,662 reviews

Overall

8.1

Comfort

8.1

Boarding

8.2

Food

7.2

Crew

8.7

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,662 reviews

Overall

8.1

Comfort

8.1

Boarding

8.2

Food

7.2

Crew

8.7

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

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, 8 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?

    $69 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 Frontier, with prices starting from $80 and $81, respectively.

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

    The most popular flight routes from Iowa to St. Louis are Des Moines - Lambert-St Louis, Omaha Eppley Airfield - 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 $383 for a flight from Iowa to St. Louis. The cheapest flight overall is $174 while the most popular route, (Des Moines - Lambert-St Louis) is currently priced at $137.

  • 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Iowa to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.
LaGuardia to Kansas City flights
Newark to Kansas City flights
Los Angeles to Kansas City flights
Dulles Intl to Kansas City flights
Buffalo to Kansas City flights
O'Hare Intl to Kansas City flights
Newark to St. Louis flights
Reagan-National to Kansas City flights
Dallas/Fort Worth to Kansas City flights
John F Kennedy Intl to Kansas City flights
LaGuardia to St. Louis flights
Hobby to Kansas City flights
Baltimore to Kansas City flights
Seattle to Kansas City flights
Denver to Kansas City flights
Boston to Kansas City flights
Dallas/Fort Worth to St. Louis flights
Dulles Intl to St. Louis flights
San Francisco to Kansas City flights
John F Kennedy Intl to St. Louis flights
Rochester to Kansas City flights
George Bush Intcntl to Kansas City flights
Boston to St. Louis flights
Ontario to Kansas City flights
Denver to St. Louis flights
Atlanta to Kansas City flights
Sky Harbor Intl to Kansas City flights
Philadelphia to Kansas City flights
O'Hare Intl to St. Louis flights
Sky Harbor Intl to St. Louis flights
San Diego to Kansas City flights
Detroit to Kansas City flights
Syracuse to Kansas City flights
Midway to Kansas City flights
San Francisco to St. Louis flights
Salt Lake City to Kansas City flights
Atlanta to St. Louis flights
Miami to Kansas City flights
Reagan-National to St. Louis flights
Seattle to St. Louis flights
Baltimore to St. Louis flights
Hobby to St. Louis flights
Las Vegas to Kansas City flights
Charlotte to Kansas City flights
Minneapolis to St. Louis flights
Orlando to Kansas City flights
Minneapolis to Kansas City flights
Philadelphia to St. Louis flights
Tampa to Kansas City flights
George Bush Intcntl to St. Louis flights

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 January 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$155Average$346FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$168Average$326FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$217Average$347FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$217Average$369FlexibilityNo cancel feeOn-time71%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.