Cheap flights from Iowa to St. Louis from $59

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Iowa to St. Louis departing on 2/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
10:57 am - 2:58 pmDSM-STL
4h 01m1 stop
Delta Logo
6:10 am - 10:17 amSTL-DSM
4h 07m1 stop
$157Delta
Find Deal
Tue, Mar 3 - Wed, Mar 4
Delta Logo
10:57 am - 8:45 pmDSM-STL
9h 48m2 stops
Delta Logo
6:10 am - 10:17 amSTL-DSM
4h 07m1 stop
$162Delta
Find Deal
Tue, Mar 3 - Wed, Mar 4
Southwest Logo
4:15 pm - 5:20 pmDSM-STL
1h 05mnonstop
Southwest Logo
10:15 am - 11:25 amSTL-DSM
1h 10mnonstop
$171Southwest
Find Deal
Thu, Dec 4 - Thu, Dec 11
American Airlines Logo
5:04 pm - 11:12 pmOMA-STL
6h 08m1 stop
American Airlines Logo
11:55 am - 4:50 pmSTL-OMA
4h 55m1 stop
$179American Airlines
Find Deal
Fri, Jan 9 - Mon, Jan 12
American Airlines Logo
3:38 pm - 10:25 pmDSM-STL
6h 47m1 stop
American Airlines Logo
5:14 am - 10:36 amSTL-DSM
5h 22m1 stop
$179American Airlines
Find Deal
Thu, Dec 4 - Thu, Dec 11
Frontier Logo
8:42 pm - 10:02 amOMA-STL
13h 20m1 stop
Frontier Logo
7:43 pm - 7:47 pmSTL-OMA
24h 04m1 stop
$218Frontier
Find Deal
Thu, Dec 18 - Mon, Dec 22
Frontier Logo
8:42 pm - 7:47 pmOMA-STL
23h 05m2 stops
Frontier Logo
7:43 pm - 7:47 pmSTL-OMA
24h 04m1 stop
$246Frontier
Find Deal
Thu, Dec 18 - Mon, Dec 22
Southwest Logo
6:15 am - 7:25 amDSM-STL
1h 10mnonstop
Southwest Logo
10:25 pm - 11:35 pmSTL-DSM
1h 10mnonstop
$250Southwest
Find Deal
Thu, Dec 4 - Sun, Dec 7
United Airlines Logo
3:27 pm - 9:00 pmOMA-STL
5h 33m1 stop
United Airlines Logo
6:30 am - 10:29 amSTL-OMA
3h 59m1 stop
$271United Airlines
Find Deal
Fri, Feb 27 - Sun, Mar 1
United Airlines Logo
6:40 pm - 10:59 pmOMA-STL
4h 19m1 stop
United Airlines Logo
4:49 pm - 9:59 pmSTL-OMA
5h 10m1 stop
$293United Airlines
Find Deal
Thu, Feb 19 - Mon, Feb 23

Southwest flights from Iowa to St. Louis

Our best Southwest deals on Iowa to St. Louis flight tickets
Southwest
Dec 4
DSM4:15 pmDes Moines
1h 05m
STL5:20 pmLambert-St Louis
Dec 11
STL10:15 amLambert-St Louis
1h 10m
DSM11:25 amDes Moines
Southwest
Dec 4
DSM6:15 amDes Moines
1h 10m
STL7:25 amLambert-St Louis
Dec 7
STL10:25 pmLambert-St Louis
1h 10m
DSM11:35 pmDes Moines
Southwest
Nov 27
DSM5:45 amDes Moines
1h 20m
STL7:05 amLambert-St Louis
Dec 4
STL10:15 amLambert-St Louis
1h 10m
DSM11:25 amDes Moines

Delta flights from Iowa to St. Louis

Our best Delta deals on Iowa to St. Louis flight tickets
Delta
Mar 3
DSM10:57 amDes Moines
4h 01m
1 stop
STL2:58 pmLambert-St Louis
Mar 4
STL6:10 amLambert-St Louis
4h 07m
1 stop
DSM10:17 amDes Moines
Delta
Mar 3
DSM10:57 amDes Moines
9h 48m
2 stops
STL8:45 pmLambert-St Louis
Mar 4
STL6:10 amLambert-St Louis
4h 07m
1 stop
DSM10:17 amDes Moines
Delta
Dec 4
DSM4:59 pmDes Moines
6h 30m
1 stop
STL11:29 pmLambert-St Louis
Dec 11
STL6:00 amLambert-St Louis
4h 38m
1 stop
DSM10:38 amDes Moines

momondo Fare Finder

 
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, momondo users made 832,500 searches. Data last updated November 6, 2025.
Use the filters below to find and compare flights from Iowa to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Des MoinesSt. Louis

DSM - STL

DSMSTL

Des Moines

Tue 3/3

10:57 am-2:58 pm

1 stop4h 01m

Lambert-St Louis

Wed 3/4

6:10 am-10:17 am

1 stop4h 07m

$157

Des MoinesSt. Louis

DSM - STL

DSMSTL

Des Moines

Tue 3/3

10:57 am-8:45 pm

2 stops9h 48m

Lambert-St Louis

Wed 3/4

6:10 am-10:17 am

1 stop4h 07m

$162

Des MoinesSt. Louis

DSM - STL

DSMSTL

Des Moines

Thu 12/4

4:15 pm-5:20 pm

Nonstop1h 05m

Lambert-St Louis

Thu 12/11

10:15 am-11:25 am

Nonstop1h 10m

$171

OmahaSt. Louis

OMA - STL

OMASTL

Omaha Eppley Airfield

Fri 1/9

5:04 pm-11:12 pm

1 stop6h 08m

Lambert-St Louis

Mon 1/12

11:55 am-4:50 pm

1 stop4h 55m

$179

Des MoinesSt. Louis

DSM - STL

DSMSTL

Des Moines

Thu 12/4

3:38 pm-10:25 pm

1 stop6h 47m

Lambert-St Louis

Thu 12/11

5:14 am-10:36 am

1 stop5h 22m

$179

OmahaSt. Louis

OMA - STL

OMASTL

Omaha Eppley Airfield

Thu 12/18

8:42 pm-10:02 am

1 stop13h 20m

Lambert-St Louis

Mon 12/22

7:43 pm-7:47 pm

1 stop24h 04m

$218

OmahaSt. Louis

OMA - STL

OMASTL

Omaha Eppley Airfield

Thu 12/18

8:42 pm-7:47 pm

2 stops23h 05m

Lambert-St Louis

Mon 12/22

7:43 pm-7:47 pm

1 stop24h 04m

$246

Des MoinesSt. Louis

DSM - STL

DSMSTL

Des Moines

Thu 12/4

6:15 am-7:25 am

Nonstop1h 10m

Lambert-St Louis

Sun 12/7

10:25 pm-11:35 pm

Nonstop1h 10m

$250

OmahaSt. Louis

OMA - STL

OMASTL

Omaha Eppley Airfield

Fri 2/27

3:27 pm-9:00 pm

1 stop5h 33m

Lambert-St Louis

Sun 3/1

6:30 am-10:29 am

1 stop3h 59m

$271

OmahaSt. Louis

OMA - STL

OMASTL

Omaha Eppley Airfield

Thu 2/19

6:40 pm-10:59 pm

1 stop4h 19m

Lambert-St Louis

Mon 2/23

4:49 pm-9:59 pm

1 stop5h 10m

$293

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to St. Louis from

How to get the cheapest flight ticket from Iowa to St. Louis

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to St. Louis?

In general, September is the cheapest month to fly from Iowa to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $182. The month of August is another great option to travel to St. Louis, with average flight prices from Iowa averaging around $225.

What is the cheapest day to depart on your flight to St. Louis?

The cheapest day to depart on your flight to St. Louis is on a Tuesday when prices can be found for as low as $375. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $427. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.

What is the cheapest time of day to depart on your flight to St. Louis?

Flying to St. Louis from Iowa in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $394 when looking at flights departing in the afternoon. In the morning is when there is more demand to fly to St. Louis, so prices are often more expensive at around $413 per ticket.

What is the cheapest Iowa to Lambert-St Louis flight route?

Fly from Burlington to Lambert-St Louis for the best Iowa - Lambert-St Louis flight prices

What cabin class options are available on Iowa to Lambert-St Louis flights?

There is only 1 cabin class available to choose from on Iowa to Lambert-St Louis flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Iowa to St. Louis flights?

No. A direct flight is the cheapest option for a flight between Iowa to St. Louis.

Cheap Iowa to St. Louis flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Iowa to St. Louis

Best Price Found

$185

Fastest flight time

1h 05m

Direct flights

Every day

Airports in St. Louis

1 airport
The best one-way flight to St. Louis from Iowa in the past 72 hours is $185. The best round-trip flight deal from Iowa to St. Louis found on momondo in the last 72 hours is $105.
The fastest flight from Iowa to St. Louis takes 1h 05m
Direct flights go from Iowa to St. Louis every day.
There is 1 airport near St. Louis: Lambert-St Louis (STL)
  • When did momondo last update prices for flights from Iowa to Lambert-St Louis Airport?

    Prices for flights from Iowa to Lambert-St Louis Airport were last updated today.

  • How many operators does momondo search for flights from Iowa to Lambert-St Louis Airport?

  • How old do you have to be to fly from Iowa to Lambert-St Louis Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Iowa to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The travel and health documents you'll need for your trip to Lambert-St Louis Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Lambert-St Louis Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Iowa to St. Louis?

Best airlines flying from Iowa to St. Louis

Compare and see reviews for airlines that fly from Iowa to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
Southern / MokulelePriceFrom $61Free CancellationRating
0.0
0 reviews
Search Southern / Mokulele flights
SouthwestPriceFrom $97Free CancellationRating
8.0
4,241 reviews
Search Southwest flights

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Hermann
Fairview Heights
Florissant
Maryland Heights
O'Fallon
Wentzville
Fenton
Collinsville
St. Peters
Alton
Farmington
Festus
Glencoe
Edwardsville
Clayton
Eureka
Litchfield
Shrewsbury

Why use momondo?

Why should I use momondo to find a flight deal from Iowa to St. Louis?

Finding the right flight to St. Louis from Iowa is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to St. Louis quick and easy, saving you time and money.

Can I find flights from Iowa to St. Louis with flexible booking policies on momondo?

Yes. All flights to St. Louis from Iowa on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Iowa to St. Louis?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to St. Louis from Iowa.

I’m not ready to book a flight from Iowa to St. Louis right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to St. Louis from Iowa. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your St. Louis trip

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1 adult
Sat 12/6
Sat 12/13

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