Iowa

$136+ Cheap flights from St. Louis (STL) to Iowa

STL — DSM
Dec 10 — Dec 171
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Cheap flight deals from St. Louis to Iowa

Cheapest flights from St. Louis to Iowa

Fri 12/48:24 pm -
1 stop4h 09m
Sun 12/67:31 pm -
1 stop4h 31m
Deal found 11/5$299
Thu 12/3111:15 am -
1 stop4h 58m
Mon 1/45:39 pm -
1 stop5h 09m
Deal found 11/8$319
Fri 12/44:40 pm -
1 stop5h 25m
Sun 12/65:25 am -
2 stops8h 40m
Deal found 11/5$340
Wed 11/185:00 am -
1 stop4h 06m
Sun 11/2210:00 am -
1 stop5h 43m
Deal found 11/5$359
Sun 12/62:10 pm -
2 stops19h 40m
Thu 12/108:39 pm -
1 stop14h 18m
Deal found 11/8$360
Thu 12/108:24 pm -
1 stop4h 09m
Sun 12/132:05 pm -
1 stop5h 53m
Deal found 11/8$361
Thu 12/245:08 pm -
1 stop6h 07m
Mon 12/288:00 am -
1 stop6h 18m
Deal found 11/8$363
Mon 11/301:08 pm -
1 stop4h 20m
Tue 12/11:15 pm -
1 stop3h 50m
Deal found 11/7$365
Sun 12/67:15 pm -
1 stop3h 50m
Thu 12/103:25 pm -
1 stop6h 35m
Deal found 11/8$372
Thu 12/2411:55 am -
2 stops10h 10m
Mon 12/287:15 pm -
1 stop3h 30m
Deal found 11/8$384
Fri 11/66:50 pm -
1 stop4h 06m
Mon 11/96:50 pm -
1 stop4h 34m
Deal found 11/6$389
Mon 12/75:40 pm -
1 stop4h 08m
Mon 12/148:00 am -
1 stop4h 22m
Deal found 11/8$409

Find flight deals from St. Louis to Iowa

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$299
(American Airlines)

One-way from

$136
(Delta)

Popular in

September

Cheapest in

October

Average price

$563

Good one-way deal

$194 or less
Provider with most accurate pricing for Lambert-St Louis-Des Moines flight deals.
Provider most trusted by Cheapflights users for Lambert-St Louis-Des Moines flights.
From Lambert-St Louis to Iowa
One-way flight from Lambert-St Louis to Iowa
Highest demand for flights based on searches. 10% potential increase in price ($66 potential increase over avg. RT price).
Cheapest flight prices on average. 5% potential price decrease ($28 potential savings vs. average RT price).
Average for round-trip flights in November 2026
Price to beat on a one-way flight from Lambert-St Louis to Iowa.

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from St. Louis to Iowa that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisDes Moines

STL Lambert-St Louis - DSM Des Moines

STLDSM

Lambert-St Louis

Thu 12/17

6:03 am-10:21 am

1 stop4h 18m

Des Moines

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$136

St. LouisDes Moines

STL Lambert-St Louis - DSM Des Moines

STLDSM

Lambert-St Louis

Mon 11/30

5:00 am-9:01 am

1 stop4h 01m

Des Moines

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$206

St. LouisDes Moines

STL Lambert-St Louis - DSM Des Moines

STLDSM

Lambert-St Louis

Mon 11/23

9:45 am-2:08 pm

1 stop4h 23m

Des Moines

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$213

St. LouisDes Moines

STL Lambert-St Louis - DSM Des Moines

STLDSM

Lambert-St Louis

Thu 12/17

5:45 pm-5:22 pm

3 stops47h 37m

Des Moines

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$215

St. LouisDes Moines

STL Lambert-St Louis - DSM Des Moines

STLDSM

Lambert-St Louis

Mon 11/30

2:35 pm-11:35 pm

2 stops9h 00m

Des Moines

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$233

St. LouisCedar Rapids

STL Lambert-St Louis - CID Cedar Rapids

STLCID

Lambert-St Louis

Sat 11/28

6:50 pm-10:56 pm

1 stop4h 06m

Cedar Rapids

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$249
Quickest round-trip

St. LouisCedar Rapids

STL Lambert-St Louis - CID Cedar Rapids

STLCID

Lambert-St Louis

Mon 12/7

8:24 pm-11:59 pm

1 stop3h 35m

Cedar Rapids

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$249

St. LouisDes Moines

STL Lambert-St Louis - DSM Des Moines

STLDSM

Lambert-St Louis

Sun 11/15

6:13 am-10:19 am

1 stop4h 06m

Des Moines

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$275

St. LouisCedar Rapids

STL Lambert-St Louis - CID Cedar Rapids

STLCID

Lambert-St Louis

Sun 11/15

5:28 pm-10:59 pm

1 stop5h 31m

Cedar Rapids

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$287

St. LouisDes Moines

STL Lambert-St Louis - DSM Des Moines

STLDSM

Lambert-St Louis

Fri 12/4

8:24 pm-12:33 am

1 stop4h 09m

Des Moines

Sun 12/6

7:31 pm-12:02 am

1 stop4h 31m

$299

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/5

Showing 1-10 of 39 resultsSorted by cheapest first
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Best time to book a flight from St. Louis to Iowa

Have a flexible travel schedule? Discover the best time to fly to Iowa from St. Louis with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

Everything you need to know about your flight from St. Louis to Iowa

What is the cheapest time of day to fly from STL to IA?

A simple way to save on the total cost of your ticket is to fly from St. Louis to Iowa in the afternoon. If you’re flexible enough to do this you can expect to save up to 71% on your trip compared to booking a flight in the evening.

How much does it cost to fly round-trip from St. Louis to Iowa?

Airfare is below average for this route at the moment.
St. Louis to Iowa flights typically cost between $415 and $1,191 in December.
The cheapest round-trip price found within the last 5 days was $299 on American Airlines (Dec 4-Dec 6).

Reviews of airlines servicing Iowa

Read reviews from past customers who have flown Southwest,Delta, andUnited Airlines from St. Louis to Iowa. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Overall

8.0

Boarding

8.1

Crew

8.6

Entertainment

7.4

Food

7.0

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Patricia,Oct 2026

DAL - TPA

I love flying southwest, Both flights were packed full full - so not room for all carry one and bags had to be checked but still good flights.

Overall

8.0

Boarding

8.1

Crew

8.6

Entertainment

7.4

Food

7.0

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Patricia,Oct 2026

DAL - TPA

I love flying southwest, Both flights were packed full full - so not room for all carry one and bags had to be checked but still good flights.

Overall

8.0

Boarding

8.1

Crew

8.6

Entertainment

7.4

Food

7.0

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Patricia,Oct 2026

DAL - TPA

I love flying southwest, Both flights were packed full full - so not room for all carry one and bags had to be checked but still good flights.

Overall

8.0

Boarding

8.1

Crew

8.6

Entertainment

7.4

Food

7.0

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Patricia,Oct 2026

DAL - TPA

I love flying southwest, Both flights were packed full full - so not room for all carry one and bags had to be checked but still good flights.

Related info for your journey

  • What airport do you fly from for flights from St. Louis to Iowa?

    Most people fly from Lambert-St Louis (STL) if they book a flight from St. Louis to Iowa. Lambert-St Louis is conveniently located just 12.7 mi from St. Louis’s city center.

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

  • How long is the flight from St. Louis to Iowa?

    Departing from St. Louis to Iowa will take you 4h 09m. Airlines will cover a distance of 259 mi. This flight may include one or multiple stops.

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

    For one-way options, check prices for Southwest. According to our data, you can fly for as low as $58. Users have also found prices from $78 and $158 on Delta and United Airlines, respectively.

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

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

    Looking for the cheapest flight from St. Louis to Iowa? While on average our users pay $194, our data indicates the cheapest price to be $175. The most popular route (Lambert-St Louis - Omaha Eppley Airfield), is priced around $364.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from St. Louis to Iowa by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for St. Louis to Iowa

Top 3 airlines flying from St. Louis to Iowa

AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$196Average$340FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$250Average$680FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$262Average$519FlexibilityNo cancel feeOn-time69%

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