What is the cheapest airline that flies from Iowa to Lambert-St Louis?

Southwest, Frontier, and American Airlines are the most popular carriers operating from Iowa to Lambert-St Louis

How many flights depart from Iowa to St. Louis on average per day?

As of September 2025, 4 flights take off from Iowa and land in St. Louis each day. The most common flight departure time for this route is 6:00AM, with 53% of daily flights taking off at noon.

How many flights depart from Iowa to St. Louis on average per week?

As of September 2025, 31 flights take off from Iowa and land in St. Louis each week. The most common flight departure day for this route is Mon, with 16% of weekly flights taking off on this day.

How long does it take to fly to St. Louis?

Flight times from Iowa to St. Louis vary, but if you’re flying out of Des Moines and flying into St. Louis (one of the most popular routes), then the duration is 1h 05m on average. Another popular route from Iowa to St. Louis is flying from Waterloo to St. Louis, which will take roughly 3h 33m. Keep in mind that layovers or delays could extend your travel time.

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?

The number of operators available for flights from Iowa to Lambert-St Louis Airport is 1 as of September 2025.

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.

$69 Cheap Flights from Iowa to St. Louis in 2025/26

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Find the cheapest flights from Iowa to St. Louis

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

6:15 pm - 7:25 pmDSM-STL

1h 10mnonstop

10:20 pm - 11:30 pmSTL-DSM

1h 10mnonstop

$137Southwest

Find Deal

Mon, Oct 20 - Mon, Oct 27

3:50 pm - 5:00 pmDSM-STL

1h 10mnonstop

8:20 am - 9:30 amSTL-DSM

1h 10mnonstop

$154Southwest

Find Deal

Sat, Oct 18 - Tue, Oct 21

8:35 pm - 9:06 amOMA-STL

12h 31m1 stop

7:55 pm - 6:40 pmSTL-OMA

22h 45m1 stop

$156Frontier

Find Deal

Fri, Oct 3 - Sat, Oct 4

6:12 pm - 11:18 pmDSM-STL

5h 06m1 stop

8:04 pm - 12:02 amSTL-DSM

3h 58m1 stop

$175American Airlines

Find Deal

Sat, Oct 18 - Tue, Oct 21

5:32 pm - 11:24 pmDSM-STL

5h 52m1 stop

5:31 pm - 9:03 pmSTL-DSM

3h 32m1 stop

$177Delta

Find Deal

Mon, Oct 20 - Mon, Oct 27

10:55 am - 8:39 pmDSM-STL

9h 44m2 stops

6:30 am - 10:22 amSTL-DSM

3h 52m1 stop

$182Delta

Find Deal

Tue, Mar 3 - Wed, Mar 4

2:25 pm - 9:06 amDSM-STL

18h 41m1 stop

7:52 pm - 1:52 pmSTL-DSM

18h 00m1 stop

$185Frontier

Find Deal

Sun, Oct 5 - Thu, Oct 9

6:30 am - 10:49 amDSM-STL

4h 19m1 stop

5:00 am - 10:32 amSTL-DSM

5h 32m1 stop

$217United Airlines

Find Deal

Thu, Oct 16 - Thu, Oct 23

8:00 am - 2:27 pmDSM-STL

6h 27m1 stop

6:30 am - 10:30 amSTL-DSM

4h 00m1 stop

$243United Airlines

Find Deal

Wed, Oct 22 - Sun, Oct 26

3:48 pm - 11:18 pmDSM-STL

7h 30m1 stop

2:15 pm - 8:11 pmSTL-DSM

5h 56m1 stop

$275American Airlines

Find Deal

Wed, Oct 22 - Sun, Oct 26

Frontier flights from Iowa to St. Louis

Our best Frontier deals on Iowa to St. Louis flight tickets

Frontier

Oct 3

OMA8:35 pmOmaha Eppley Airfield

12h 31m

1 stop

STL9:06 amLambert-St Louis

Oct 4

STL7:55 pmLambert-St Louis

22h 45m

1 stop

OMA6:40 pmOmaha Eppley Airfield

$156

Find similar

Frontier

Oct 5

DSM2:25 pmDes Moines

18h 41m

1 stop

STL9:06 amLambert-St Louis

Oct 9

STL7:52 pmLambert-St Louis

18h 00m

1 stop

DSM1:52 pmDes Moines

$185

Find similar

Frontier

Oct 19

OMA8:59 pmOmaha Eppley Airfield

12h 08m

1 stop

STL9:07 amLambert-St Louis

Oct 26

STL7:52 pmLambert-St Louis

24h 12m

1 stop

OMA8:04 pmOmaha Eppley Airfield

$188

Find similar

Southwest flights from Iowa to St. Louis

Our best Southwest deals on Iowa to St. Louis flight tickets

Southwest

Oct 20

DSM6:15 pmDes Moines

1h 10m

STL7:25 pmLambert-St Louis

Oct 27

STL10:20 pmLambert-St Louis

1h 10m

DSM11:30 pmDes Moines

$137

Find similar

Southwest

Oct 18

DSM3:50 pmDes Moines

1h 10m

STL5:00 pmLambert-St Louis

Oct 21

STL8:20 amLambert-St Louis

1h 10m

DSM9:30 amDes Moines

$154

Find similar

Southwest

Oct 18

DSM3:50 pmDes Moines

1h 10m

STL5:00 pmLambert-St Louis

Oct 21

STL1:30 pmLambert-St Louis

7h 25m

1 stop

DSM8:55 pmDes Moines

$164

Find similar

Fly from

Fly to

Route

Depart

Return

Price

Des MoinesSt. Louis

DSM - STL

DSMSTL

Des Moines

Mon 10/20

6:15 pm-7:25 pm

Nonstop1h 10m

Lambert-St Louis

Mon 10/27

10:20 pm-11:30 pm

Nonstop1h 10m

$137

Des MoinesSt. Louis

DSM - STL

DSMSTL

Des Moines

Sat 10/18

3:50 pm-5:00 pm

Nonstop1h 10m

Lambert-St Louis

Tue 10/21

8:20 am-9:30 am

Nonstop1h 10m

$154

OmahaSt. Louis

OMA - STL

OMASTL

Omaha Eppley Airfield

Fri 10/3

8:35 pm-9:06 am

1 stop12h 31m

Lambert-St Louis

Sat 10/4

7:55 pm-6:40 pm

1 stop22h 45m

$156

Des MoinesSt. Louis

DSM - STL

DSMSTL

Des Moines

Sat 10/18

6:12 pm-11:18 pm

1 stop5h 06m

Lambert-St Louis

Tue 10/21

8:04 pm-12:02 am

1 stop3h 58m

$175

Des MoinesSt. Louis

DSM - STL

DSMSTL

Des Moines

Mon 10/20

5:32 pm-11:24 pm

1 stop5h 52m

Lambert-St Louis

Mon 10/27

5:31 pm-9:03 pm

1 stop3h 32m

$177

Des MoinesSt. Louis

DSM - STL

DSMSTL

Des Moines

Tue 3/3

10:55 am-8:39 pm

2 stops9h 44m

Lambert-St Louis

Wed 3/4

6:30 am-10:22 am

1 stop3h 52m

$182

Des MoinesSt. Louis

DSM - STL

DSMSTL

Des Moines

Sun 10/5

2:25 pm-9:06 am

1 stop18h 41m

Lambert-St Louis

Thu 10/9

7:52 pm-1:52 pm

1 stop18h 00m

$185

Des MoinesSt. Louis

DSM - STL

DSMSTL

Des Moines

Thu 10/16

6:30 am-10:49 am

1 stop4h 19m

Lambert-St Louis

Thu 10/23

5:00 am-10:32 am

1 stop5h 32m

$217

Des MoinesSt. Louis

DSM - STL

DSMSTL

Des Moines

Wed 10/22

8:00 am-2:27 pm

1 stop6h 27m

Lambert-St Louis

Sun 10/26

6:30 am-10:30 am

1 stop4h 00m

$243

Des MoinesSt. Louis

DSM - STL

DSMSTL

Des Moines

Wed 10/22

3:48 pm-11:18 pm

1 stop7h 30m

Lambert-St Louis

Sun 10/26

2:15 pm-8:11 pm

1 stop5h 56m

$275

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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

Prices

Airlines

Other information

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

In general, August 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 $225. The month of September is another great option to travel to St. Louis, with average flight prices from Iowa averaging around $233.

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 $377. 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 $431. 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 $399 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 $411 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	$167
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 $167. 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)

Search flight deals

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?
The number of operators available for flights from Iowa to Lambert-St Louis Airport is 1 as of September 2025.
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?
Based on momondo bookings for flights between Iowa and St. Louis, the leading plane model is Embraer 175, making up 18.48% of the total bookings. Other popular models include Boeing 737-800 Passenger/BBJ2 (winglets) with 11.96%, Boeing 737-700 Passenger/BBJ1 (winglets) with 11.41%, and Airbus A319 with 10.87%.

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 / Mokulele	PriceFrom $61	Free Cancellation	Rating 6.3 25 reviews		Search Southern / Mokulele flights
Southwest	PriceFrom $97	Free Cancellation	Rating 8.0 4,244 reviews		Search Southwest flights

St. Charles

Chesterfield

Fairview Heights

Hermann

Florissant

Maryland Heights

O'Fallon

Fenton

Collinsville

Wentzville

Alton

St. Peters

Farmington

Festus

Glencoe

Clayton

Edwardsville

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

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Cheap flights from Iowa to St. Louis from $69

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 12/15. 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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Frontier flights from Iowa to St. Louis

Our best Frontier deals on Iowa to St. Louis flight tickets

Southwest flights from Iowa to St. Louis

Our best Southwest deals on Iowa to St. Louis flight tickets

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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?

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

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

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.

What is the cheapest airline that flies from Iowa to Lambert-St Louis?

Southwest, Frontier, and American Airlines are the most popular carriers operating from Iowa to Lambert-St Louis

How many flights depart from Iowa to St. Louis on average per day?

As of September 2025, 4 flights take off from Iowa and land in St. Louis each day. The most common flight departure time for this route is 6:00AM, with 53% of daily flights taking off at noon.

How many flights depart from Iowa to St. Louis on average per week?

As of September 2025, 31 flights take off from Iowa and land in St. Louis each week. The most common flight departure day for this route is Mon, with 16% of weekly flights taking off on this day.

How long does it take to fly 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

Fastest flight time

Direct flights

Airports in St. Louis

When did momondo last update prices for flights from Iowa to Lambert-St Louis Airport?

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?

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

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

Traveling to a place near St. Louis?

Why use momondo?

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

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

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

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

An easier way to manage your St. Louis trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing Missouri