Des Moines

$49+ Cheap flights from St. Louis to Des Moines (STL - DSM)

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 8/4. Fares are subject to change and may not be available on all flights or dates of travel.
STL — DSM
Jun 17 — Jun 241
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Cheap flight deals from St. Louis to Des Moines

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Des Moines (DSM). 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 June 12, 2025.

Round-trip from

$97
(Southwest)

One-way from

$49
(Southwest)

Popular in

March

Cheapest in

June

Average price

$213

Good round-trip deal

$365 or less

Good one-way deal

$184 or less
From Lambert-St Louis to Des Moines
One-way flight from Lambert-St Louis to Des Moines
Highest demand for flights based on searches. 7% potential increase in price ($27 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
Average for round-trip flights in June 2025
Price to beat on a round-trip flight from Lambert-St Louis to Des Moines.
Price to beat on a one-way flight from Lambert-St Louis to Des Moines.

Find flight deals from St. Louis to Des Moines

Cheapest flights from St. Louis to Des Moines
Explore the most affordable flight options available from St. Louis to Des Moines. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This Southwest deal was found by Cheapflights users on 6/9. 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.
Tue 8/129:15 pmSTL - DSM
Nonstop1h 05mSouthwest
Thu 8/146:00 amDSM - STL
Nonstop1h 05mSouthwest
Deal found 6/9$97
This Delta deal was found by Cheapflights users on 6/9. 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 8/93:41 pmSTL - DSM
1 stop6h 52mDelta
Mon 8/115:25 pmDSM - STL
1 stop5h 57mDelta
Deal found 6/9$167
This United Airlines deal was found by Cheapflights users on 6/11. 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 8/125:31 pmSTL - DSM
1 stop4h 16mUnited Airlines
Thu 8/1411:25 amDSM - STL
1 stop4h 22mUnited Airlines
Deal found 6/11$189
This American Airlines deal was found by Cheapflights users on 6/10. 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 9/178:50 amSTL - DSM
1 stop6h 33mAmerican Airlines
Sun 9/215:00 amDSM - STL
1 stop4h 26mAmerican Airlines
Deal found 6/10$195
This Mytrip deal was found by Cheapflights users on 6/10. 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 7/269:50 amSTL - DSM
2 stops7h 26mMultiple Airlines
Mon 7/282:00 pmDSM - STL
2 stops28h 41mMultiple Airlines
Deal found 6/10$288

Cheapflights Fare Finder

Customize your flight search to find flights from St. Louis to Des Moines 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 June 12, 2025.
Use the filters below to find and compare flights from St. Louis to Des Moines that are best for you.

Fly from

St. Louis

Fly to

Des Moines

Route

Depart

Return

Price

St. LouisDes Moines

STL - DSM

STLDSM

Lambert-St Louis

Tue 8/12

9:15 pm-10:20 pm

Nonstop1h 05m

Des Moines

Thu 8/14

6:00 am-7:05 am

Nonstop1h 05m

$97

St. LouisDes Moines

STL - DSM

STLDSM

Lambert-St Louis

Sat 8/9

3:41 pm-10:33 pm

1 stop6h 52m

Des Moines

Mon 8/11

5:25 pm-11:22 pm

1 stop5h 57m

$167

St. LouisDes Moines

STL - DSM

STLDSM

Lambert-St Louis

Tue 8/12

5:31 pm-9:47 pm

1 stop4h 16m

Des Moines

Thu 8/14

11:25 am-3:47 pm

1 stop4h 22m

$189

St. LouisDes Moines

STL - DSM

STLDSM

Lambert-St Louis

Mon 8/11

7:59 pm-11:27 pm

1 stop3h 28m

Des Moines

Thu 8/14

6:12 pm-11:55 pm

1 stop5h 43m

$220

St. LouisDes Moines

STL - DSM

STLDSM

Lambert-St Louis

Sat 7/26

9:50 am-5:16 pm

2 stops7h 26m

Des Moines

Mon 7/28

2:00 pm-6:41 pm

2 stops28h 41m

$288

St. LouisDes Moines

STL - DSM

STLDSM

Lambert-St Louis

Mon 8/4

10:40 pm-11:50 pm

Nonstop1h 10m

$49

St. LouisDes Moines

STL - DSM

STLDSM

Lambert-St Louis

Tue 8/5

4:52 pm-11:44 pm

1 stop6h 52m

$80

St. LouisDes Moines

STL - DSM

STLDSM

Lambert-St Louis

Sat 8/9

3:41 pm-10:33 pm

1 stop6h 52m

$84

St. LouisDes Moines

STL - DSM

STLDSM

Lambert-St Louis

Thu 9/4

8:44 am-2:40 pm

2 stops29h 56m

$123

St. LouisDes Moines

STL - DSM

STLDSM

Lambert-St Louis

Mon 8/4

8:00 am-2:41 pm

1 stop6h 41m

$131

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 11 results
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Best time to book a flight from St. Louis to Des Moines

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

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

Currently, August is the cheapest month in which you can book a flight from St. Louis to Des Moines (average of $336). Flying from St. Louis to Des Moines in June is currently the most expensive (average of $411). 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 STL to DSM?

Find hourly flight availability from St. Louis to Des Moines. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

When flying from St. Louis to Des Moines, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 39% versus a flight in the morning.

Rainfall in Des Moines by month

Plan your trip to Des Moines by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Des Moines ranges from 1.0 - 4.9 inches per month. June is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Des Moines when rainfall is around 1.0 in.

Temperature in Des Moines by month

Plan your trip to Des Moines by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Des Moines, 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 77.0 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 Des Moines

Get insights into the airlines that provide service to Des Moines. 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 Des Moines. Reviews last updated June 12, 2025.
Read reviews from past customers who have flown Southwest, Delta and United Airlines from St. Louis to Des Moines. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Entertainment

7.6

Crew

8.6

Overall

8.0

Comfort

8.0

Boarding

8.2

Food

7.1

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Entertainment

7.6

Crew

8.6

Overall

8.0

Comfort

8.0

Boarding

8.2

Food

7.1

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
8.0
Very good

Entertainment

7.6

Crew

8.6

Overall

8.0

Comfort

8.0

Boarding

8.2

Food

7.1

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Entertainment

7.6

Crew

8.6

Overall

8.0

Comfort

8.0

Boarding

8.2

Food

7.1

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Entertainment

7.6

Crew

8.6

Overall

8.0

Comfort

8.0

Boarding

8.2

Food

7.1

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Entertainment

7.6

Crew

8.6

Overall

8.0

Comfort

8.0

Boarding

8.2

Food

7.1

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Des Moines. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airports do I use to fly from St. Louis to Des Moines?

    To fly from St. Louis to Des Moines, you need to book a flight from Lambert-St Louis (STL) to Des Moines (DSM). Nonstop flights to Des Moines from Lambert-St Louis take 1h 05m on average. When it comes time to book airfare, you have a few options: there is 1 outbound flight from Lambert-St Louis to Des Moines offered by 1 airline.

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

  • What are the cheapest airlines flying from St. Louis to Des Moines round-trip?

    Flying on Southwest is currently your cheapest option to Des Moines, with prices starting at $97. Additional round-trip tickets that might be worth considering are offered by Delta and United Airlines, with the lowest prices starting at $167 and $189, respectively. Southwest is currently priced 72% below the average price you’ll pay for this route.

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

    The cheapest airlines for a one-way flight from St. Louis to Des Moines are Southwest ($49), American Airlines ($80), and Delta ($84).

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

    On average you can expect to pay $316 for a flight from St. Louis to Des Moines. The cheapest flight overall is $165 while the most popular route, (Lambert-St Louis - Des Moines) is currently priced at $97.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from St. Louis to Des Moines 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 St. Louis to Des Moines?

    Currently, August is the cheapest month in which you can book a flight from St. Louis to Des Moines (average of $336). Flying from St. Louis to Des Moines in June is currently the most expensive (average of $411). 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 St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Altoona
Ames
Johnston
Boone
West Des Moines
Ankeny

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Top airline flying from St. Louis to Des Moines

Discover the top airline that operate flights from St. Louis to Des Moines. 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$167Average$320FlexibilityNo cancel feeOn-time63%

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