$231 Cheap Flights from Des Moines (DSM) to St. Thomas (STT)

View $231 flight on Fri, Jul 18, 2025Opens in a new window

Popular airlines from Des Moines International Airport (DSM) to Cyril E. King Airport (STT)

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Cheap Flights from Des Moines to St. Thomas (DSM-STT)

Prices were available within the past 7 days and start at $231 for one-way flights and $432 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Sat, Aug 30 - Thu, Sep 4
DSM
Des Moines
STT
St. Thomas
$432 Roundtrip, found 1 day ago
$432
Roundtrip
found 1 day ago
Select American Airlines flight, departing Sat, Aug 30 from Des Moines to St. Thomas, returning Thu, Sep 4, priced at $432 found 1 day ago
Delta
Sat, Aug 30 - Thu, Sep 4
DSM
Des Moines
STT
St. Thomas
$438 Roundtrip, found 1 day ago
$438
Roundtrip
found 1 day ago
Select Delta flight, departing Sat, Aug 30 from Des Moines to St. Thomas, returning Thu, Sep 4, priced at $438 found 1 day ago
American Airlines
Mon, Jan 5 - Thu, Jan 15
DSM
Des Moines
STT
St. Thomas
$449 Roundtrip, found 1 day ago
$449
Roundtrip
found 1 day ago
Select American Airlines flight, departing Mon, Jan 5 from Des Moines to St. Thomas, returning Thu, Jan 15, priced at $449 found 1 day ago
American Airlines
Tue, Jan 6 - Wed, Jan 14
DSM
Des Moines
STT
St. Thomas
$453 Roundtrip, found 1 day ago
$453
Roundtrip
found 1 day ago
Select American Airlines flight, departing Tue, Jan 6 from Des Moines to St. Thomas, returning Wed, Jan 14, priced at $453 found 1 day ago
United
Thu, Jul 17 - Mon, Jul 21
DSM
Des Moines
STT
St. Thomas
$458 Roundtrip, found 1 day ago
$458
Roundtrip
found 1 day ago
Select United flight, departing Thu, Jul 17 from Des Moines to St. Thomas, returning Mon, Jul 21, priced at $458 found 1 day ago
Delta
Tue, Jul 15 - Tue, Jul 22
DSM
Des Moines
STT
St. Thomas
$465 Roundtrip, just found
$465
Roundtrip
just found
Select Delta flight, departing Tue, Jul 15 from Des Moines to St. Thomas, returning Tue, Jul 22, priced at $465 just found
American Airlines
Sun, Feb 1 - Tue, Mar 10
DSM
Des Moines
STT
St. Thomas
$465 Roundtrip, found 7 hours ago
$465
Roundtrip
found 7 hours ago
Select American Airlines flight, departing Sun, Feb 1 from Des Moines to St. Thomas, returning Tue, Mar 10, priced at $465 found 7 hours ago
American Airlines
Sat, Aug 30 - Thu, Sep 4
DSM
Des Moines
STT
St. Thomas
$476 Roundtrip, found 1 day ago
$476
Roundtrip
found 1 day ago
Select American Airlines flight, departing Sat, Aug 30 from Des Moines to St. Thomas, returning Thu, Sep 4, priced at $476 found 1 day ago
Delta
Tue, Jan 6 - Tue, Jan 13
DSM
Des Moines
STT
St. Thomas
$478 Roundtrip, found 2 days ago
$478
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, Jan 6 from Des Moines to St. Thomas, returning Tue, Jan 13, priced at $478 found 2 days ago
Delta
Sat, Aug 30 - Thu, Sep 4
DSM
Des Moines
STT
St. Thomas
$484 Roundtrip, found 1 day ago
$484
Roundtrip
found 1 day ago
Select Delta flight, departing Sat, Aug 30 from Des Moines to St. Thomas, returning Thu, Sep 4, priced at $484 found 1 day ago
Flights from Des Moines (DSM) to St. Thomas (STT)
Origin airport
Des Moines Intl.
Destination airport
Cyril E. King
Airlines serving
American Airlines, Delta, United
Roundtrip price
$432
Distance
2328 mi

Des Moines to St. Thomas Flights

The cheapest times to fly from Des Moines to St. Thomas

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Des Moines to St. Thomas are during the month of August. You can find some of the cheapest flights from Des Moines to St. Thomas with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Des Moines to St. Thomas

Sunday is one of the best days to book for cheap flights from Des Moines to St. Thomas: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Des Moines to St. Thomas

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Des Moines to St. Thomas in 2025. You can also book with separate airlines for your outbound and return journeys, from $231 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Des Moines to St. Thomas flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Des Moines to St. Thomas airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Des Moines Intl. Airport (DSM) to Cyril E. King Airport (STT) cost?
Discover the latest flight deals from DSM to STT by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from DSM to STT?
The cheapest flights from DSM to STT are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from DSM to STT?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from DSM to STT. Sort your results by “Price (lowest to highest)” to snap up a great deal.
How many flights per day from Des Moines Intl. Airport (DSM) to Cyril E. King Airport (STT)?
You’ll need to book a flight with a layover if you’re traveling from Des Moines Intl. Airport (DSM) to Cyril E. King Airport (STT). Direct flights don’t operate daily on this route. However, just filter your search to include one or more stops to find the best option for your trip.
What day of the week has the most flights from DSM to STT?
Usually you’ll find the widest variety of flight choices on a Friday. Tuesdays are often the quietest.* But this can vary depending on the airline, time of year and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Des Moines Intl. Airport (DSM) to Cyril E. King Airport (STT)?
To touch down at Cyril E. King Airport (STT) on time, pick a flight that leaves Des Moines Intl. Airport (DSM) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
Is it cheaper to buy a plane ticket from Des Moines Intl. Airport (DSM) to Cyril E. King Airport (STT) last-minute?
Last-minute fares from DSM to STT are typically more expensive. To lock in the lowest rates, start looking for flights well in advance. That said, if you’re flexible with your travel plans, it’s possible to score a cheap fare right before your trip.
Is it cheaper to book a DSM to STT flight and hotel package?
Booking a DSM to STT flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels all in one place. Choose from our impressive range of accommodations and then add activities, car rentals and flights to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Des Moines Intl. Airport (DSM) to Cyril E. King Airport (STT)?
Typically, you can reschedule or cancel your DSM to STT flight. However, additional charges may apply, especially if you made your booking over 24 hours ago. Double-check your itinerary for the airline’s rules and fees on flight changes, or if you’d like further details, visit our Customer Service portal.

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*Available to One Key members.