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$70+ 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 1/17. Fares are subject to change and may not be available on all flights or dates of travel.
DSM — STL
Dec 23 — Dec 301
Mon 12/23
Mon 12/30
1 adult, Economy
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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 December 18, 2024.

Round-trip from

$171
(United Airlines)

One-way from

$70
(Frontier)
From Iowa to Lambert-St Louis
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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 December 18, 2024.

This Southwest deal was found by Cheapflights users on 12/18. 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.
Sun 12/295:30 amDSM - STL
Nonstop1h 20mSouthwest
Wed 1/18:15 pmSTL - DSM
Nonstop1h 10mSouthwest
Deal found 12/18$485
This CheapOair deal was found by Cheapflights users on 12/16. 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.
Fri 12/204:00 pmOMA - STL
1 stop7h 40mFrontier
Sun 12/2210:09 pmSTL - OMA
1 stop20h 19mFrontier
Deal found 12/16$539
This American Airlines deal was found by Cheapflights users on 12/18. 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 12/295:45 amDSM - STL
1 stop5h 27mAmerican Airlines
Wed 1/16:00 pmSTL - DSM
1 stop4h 11mAmerican Airlines
Deal found 12/18$545
This Delta deal was found by Cheapflights users on 12/17. 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 12/182:24 pmDSM - STL
1 stop5h 50mDelta
Sun 12/223:29 pmSTL - DSM
1 stop5h 47mDelta
Deal found 12/17$652
This Southwest deal was found by Cheapflights users on 12/16. 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 12/205:40 amOMA - STL
Nonstop1h 25mSouthwest
Sun 12/229:35 amSTL - OMA
1 stop7h 05mSouthwest
Deal found 12/16$653
This United Airlines deal was found by Cheapflights users on 12/17. 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.
Tue 12/173:23 pmDSM - STL
2 stops27h 28mUnited Airlines
Sat 12/2111:30 amSTL - DSM
1 stop6h 24mUnited Airlines
Deal found 12/17$1,435
This United Airlines deal was found by Cheapflights users on 12/16. 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 12/203:15 pmOMA - STL
1 stop6h 30mUnited Airlines
Sun 12/2210:35 amSTL - OMA
2 stops11h 50mUnited Airlines
Deal found 12/16$1,534
This Alaska Airlines deal was found by Cheapflights users on 12/16. 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.
Fri 12/201:50 pmOMA - STL
2 stops19h 02mAlaska Airlines
Sun 12/229:39 amSTL - OMA
2 stops27h 11mAlaska Airlines
Deal found 12/16$1,907

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 December 18, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

Des MoinesSt. Louis

DSM - STL

DSMSTL

Des Moines

Tue 1/21

11:35 am-3:38 pm

1 stop4h 03m

Lambert-St Louis

Thu 1/23

1:02 pm-5:54 pm

1 stop4h 52m

$171

Des MoinesSt. Louis

DSM - STL

DSMSTL

Des Moines

Tue 2/11

5:55 pm-11:09 pm

1 stop5h 14m

Lambert-St Louis

Tue 2/18

10:22 am-4:30 pm

1 stop6h 08m

$176

WaterlooSt. Louis

ALO - STL

ALOSTL

Waterloo

Tue 1/14

10:15 am-2:07 pm

1 stop3h 52m

Lambert-St Louis

Tue 1/21

5:40 am-9:23 am

1 stop3h 43m

$218

Des MoinesSt. Louis

DSM - STL

DSMSTL

Des Moines

Fri 1/17

10:57 am-11:31 pm

1 stop12h 34m

Lambert-St Louis

Thu 1/23

5:05 pm-9:57 am

1 stop16h 52m

$228

Des MoinesSt. Louis

DSM - STL

DSMSTL

Des Moines

Tue 1/21

6:30 am-7:50 am

Nonstop1h 20m

Lambert-St Louis

Thu 1/23

11:10 am-12:20 pm

Nonstop1h 10m

$290

OmahaSt. Louis

OMA - STL

OMASTL

Omaha Eppley Airfield

Wed 1/15

4:00 pm-5:15 pm

Nonstop1h 15m

Lambert-St Louis

Wed 1/15

8:20 pm-9:40 pm

Nonstop1h 20m

$293

OmahaSt. Louis

OMA - STL

OMASTL

Omaha Eppley Airfield

Tue 1/21

12:05 pm-10:09 pm

1 stop10h 04m

Lambert-St Louis

Wed 1/22

7:18 am-2:01 pm

1 stop6h 43m

$310

OmahaSt. Louis

OMA - STL

OMASTL

Omaha Eppley Airfield

Fri 1/10

5:27 pm-11:14 pm

1 stop5h 47m

Lambert-St Louis

Sun 1/12

6:00 am-10:37 am

1 stop4h 37m

$372

Des MoinesSt. Louis

DSM - STL

DSMSTL

Des Moines

Mon 1/13

2:41 pm-2:43 pm

2 stops24h 02m

Lambert-St Louis

Sun 1/19

4:28 pm-6:22 pm

3 stops25h 54m

$419

OmahaSt. Louis

OMA - STL

OMASTL

Omaha Eppley Airfield

Tue 1/21

1:48 pm-12:16 pm

2 stops22h 28m

Lambert-St Louis

Wed 1/22

5:30 pm-9:53 pm

1 stop4h 23m

$458

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 23 results
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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 December 18, 2024.

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 December 18, 2024.
To help decide which airline to fly from Iowa to St. Louis, see what other customers have to say about American Airlines, United Airlines and Southwest. 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
4,848 reviews

Crew

8.7

Overall

8.1

Comfort

8.1

Food

7.2

Boarding

8.2

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
4,848 reviews
Southwest
8.1
Very good
4,848 reviews

Crew

8.7

Overall

8.1

Comfort

8.1

Food

7.2

Boarding

8.2

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
9,554 reviews
Southwest
8.1
Very good
4,848 reviews

Crew

8.7

Overall

8.1

Comfort

8.1

Food

7.2

Boarding

8.2

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
8,604 reviews
Southwest
8.1
Very good
4,848 reviews

Crew

8.7

Overall

8.1

Comfort

8.1

Food

7.2

Boarding

8.2

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
9,055 reviews
Southwest
8.1
Very good
4,848 reviews

Crew

8.7

Overall

8.1

Comfort

8.1

Food

7.2

Boarding

8.2

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
4,848 reviews

Crew

8.7

Overall

8.1

Comfort

8.1

Food

7.2

Boarding

8.2

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, 7 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?

    $70 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on American Airlines and Southwest, with prices starting from $79 and $84, 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 Waterloo - Lambert-St Louis.

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

    On average you can expect to pay $374 for a flight from Iowa to St. Louis. The cheapest flight overall is $184 while the most popular route, (Des Moines - Lambert-St Louis) is currently priced at $171.

  • 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.

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Alternative routes for Iowa to St. Louis

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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 December 18, 2024.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$155Average$346FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$168Average$326FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$217Average$312FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$217Average$371FlexibilityNo cancel feeOn-time71%
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