Title: Cheap Flights from Des Moines to St. Louis (DSM to STL) - Expedia.co.uk ![](https://images.trvl-media.com/place/178309/1d118261-eb93-42dd-aeef-5f82e1f037e8.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/178309/1d118261-eb93-42dd-aeef-5f82e1f037e8.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # Cheap Flights from Des Moines (DSM) to St. Louis (STL) - [Return](?flightType=roundtrip) - [One-way](?flightType=oneway) - [Multi-city](?flightType=multicity) ### Travellers Adults ChildrenAges 2 to 17 InfantsYounger than 2 EconomyPremium economyBusiness classFirst class Leaving from Going to Departing Returning Add a place to stay Add a car Direct flights only ## Popular airlines from Des Moines International Airport (DSM) to Lambert-St. Louis International Airport (STL) - ![American Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AA.svg) American Airlines [](https://www.expedia.co.uk/Flights-Search?leg1=from:dsm,to:stl,departure:01/10/2025TANYT&leg2=from:stl,to:dsm,departure:08/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AA"}}]) - ![Delta](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_DL.svg) Delta [](https://www.expedia.co.uk/Flights-Search?leg1=from:dsm,to:stl,departure:01/10/2025TANYT&leg2=from:stl,to:dsm,departure:08/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"DL"}}]) - ![United](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_UA.svg) United [](https://www.expedia.co.uk/Flights-Search?leg1=from:dsm,to:stl,departure:01/10/2025TANYT&leg2=from:stl,to:dsm,departure:08/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"UA"}}]) - ![Southwest Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_WN.svg) Southwest Airlines [](https://www.expedia.co.uk/Flights-Search?leg1=from:dsm,to:stl,departure:01/10/2025TANYT&leg2=from:stl,to:dsm,departure:08/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"WN"}}]) - ![Frontier Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_F9.svg) Frontier Airlines [](https://www.expedia.co.uk/Flights-Search?leg1=from:dsm,to:stl,departure:01/10/2025TANYT&leg2=from:stl,to:dsm,departure:08/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"F9"}}]) - ## Plan, book, fly with confidence - ### Be in the know Get alerts if flight prices drop or rise\* - ### Book smarter Save up to 25% on select hotels after you book a flight\* - ### Earn twice Earn your airline miles on top of our rewards [Sign in](https://www.expedia.co.uk/login) ## Find the cheapest month to fly from Des Moines (DSM) to St. Louis (STL) ### August is typically the cheapest month to fly From £57 - £344 per traveller. ## Frequently asked questions ### How much is a flight from Des Moines Intl. Airport (DSM) to St. Louis Lambert International Airport? > Within the past 7 days on Expedia, for flights departing within the next year, the lowest price quoted for a round-trip flight from Des Moines Intl. Airport to STL was . Cheap fares don't last forever, so make sure you book yours today. Prices and availability are subject to change. Additional terms apply. ### Do I need to pay a cancellation fee if I cancel my flight from Des Moines Intl. Airport to St. Louis Lambert International Airport? > Most flights can be cancelled online, but every air carrier has different terms and conditions. If you do have to cancel your flight, visit our [Customer Service Portal](https://www.expedia.co.uk/service/?langid=1033) and follow the instructions. ### How do I find cheap flights from DSM to Lambert Field that have flexible change policies? > Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Des Moines Intl. Airport (DSM) to Lambert-St. Louis Intl. Airport (STL) flights, you'll see a "no change fees" filter for you to select. ### How far is the flight from Des Moines Intl. Airport to STL? > That new movie you've been desperate to see will have to wait — the flight distance between Des Moines Intl. Airport (DSM) and STL (STL) is only 420 kilometres. The captain will be asking you to buckle up for landing before you know it. ### Which airlines fly direct from Des Moines Intl. Airport (DSM) to St. Louis Lambert International Airport? > If you'd like to fly straight from Des Moines Intl. Airport to Lambert Field, Southwest Airlines (WN) is a top option. It operates 56 flights each month between Des Moines and St. Louis. ### Are Des Moines Intl. Airport to St. Louis Lambert International Airport flight tickets cheaper when they're purchased at the last minute? > Booking your trip from Des Moines Intl. Airport (DSM) to STL last minute could be your ticket to a great deal. However, it could end up costing a great deal more! If you'd prefer to err on the side of caution, book well ahead of your departure date. In fact, Expedia has some of the best bargains up to a year in advance. If your preferred air carrier hasn't released tickets yet, check back frequently as deals are updated all the time on Expedia. ## Travel information | Origin airport | Des Moines Intl. | | --- | --- | | Destination airport | Lambert-St. Louis Intl. | | Distance | 414 km | | Average flight time | 1 hour 5 mins | ## Book with confidence ### Compare flights from Des Moines to St. Louis easily and book with confidence For travelling on business or for pleasure, Expedia makes it easy to book your flights from Des Moines to St. Louis. Operating between them flights per day, airlines cover the route. And fly direct, getting you to Lambert-St. Louis Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Des Moines Intl. to Lambert-St. Louis Intl..   To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights.  Grab a great deal on your flight from Des Moines Intl. (DSM) to Lambert-St. Louis Intl. (STL) The easiest way to view the best deals on flights from Des Moines to St. Louis today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Des Moines Intl. to Lambert-St. Louis Intl. start at just and range up to .   To find an even better deal, try   - being flexible on your dates – midweek flights can be cheaper - looking for other airports near Des Moines and St. Louis - booking your flight during , the cheapest month on this route - varying your flight times – early morning and late at night are sometimes cheaper  Why you should book your Des Moines to St. Louis flight with Expedia! We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Des Moines Intl. to Lambert-St. Louis Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.   Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. 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