Cheap Flights from Des Moines (DSM) to St. Louis (STL)

Popular airlines from Des Moines International Airport (DSM) to St. Louis Lambert Intl. Airport (STL)

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Frequently asked questions

Is it cheaper to buy a plane ticket from Des Moines Intl. Airport (DSM) to STL last minute?
When it comes to booking your flights, being organized pays off. While you could find a deal on a DSM to STL flight at the last minute, tickets usually don't get cheaper as the date of departure nears. Based on flight pricing and demand studies in 2022, we have found that the sweet spot to book a domestic flight is between 28 – 35 days in advance. For international flights it's between three and four months.
What airports do you fly into for St. Louis from Des Moines?
From Des Moines, you can journey to St. Louis through Lambert-St. Louis Intl. Airport (STL), Spirit of St. Louis Airport (SUS) and St. Louis Downtown Airport (CPS). Do some research into which airport is the most convenient for you before making your decision. If you opt for Lambert-St. Louis Intl. Airport (STL), it's approximately 19 kilometers northwest of the city center. Use the dough you save when booking your journey with Expedia to explore the city's top sights, such as Busch Stadium and Gateway Arch.
Can I change the date of my flight from Des Moines Intl. Airport (DSM) to STL?
You can make changes to your DSM to Lambert-St. Louis Intl. Airport (STL) ticket via the Expedia Trips portal. But before doing so, check out the conditions in your itinerary to see what the airline will allow you to do and whether fees apply. Some carriers charge a change fee per person, on top of any difference in prices. However, if you booked in the last 24 hours, you may be able to cancel for free and book new flights. You can also find your way to our Customer Service portal for further details and to chat with our Virtual Agent.

Travel information

Travel information

Origin airport
Des Moines Intl.
Destination airport
Lambert-St. Louis Intl.
Distance
414 km
Average flight time
1 hour 10 mins

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