$241 Cheap Flights from Des Moines (DSM) to St. Thomas (STT)

View $241 flight on Tue, Mar 10, 2026Opens 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 $241 for one-way flights and $485 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Mon, Jan 26 - Mon, Feb 2
DSM
Des Moines
STT
St. Thomas
$485 Roundtrip, just found
$485
Roundtrip
just found
Select American Airlines flight, departing Mon, Jan 26 from Des Moines to St. Thomas, returning Mon, Feb 2, priced at $485 just found
American Airlines
Mon, Jan 26 - Mon, Feb 2
DSM
Des Moines
STT
St. Thomas
$489 Roundtrip, just found
$489
Roundtrip
just found
Select American Airlines flight, departing Mon, Jan 26 from Des Moines to St. Thomas, returning Mon, Feb 2, priced at $489 just found
American Airlines
Mon, Feb 9 - Tue, Feb 17
DSM
Des Moines
STT
St. Thomas
$491 Roundtrip, found 7 hours ago
$491
Roundtrip
found 7 hours ago
Select American Airlines flight, departing Mon, Feb 9 from Des Moines to St. Thomas, returning Tue, Feb 17, priced at $491 found 7 hours ago
American Airlines
Sun, Dec 14 - Thu, Dec 18
DSM
Des Moines
STT
St. Thomas
$493 Roundtrip, found 7 hours ago
$493
Roundtrip
found 7 hours ago
Select American Airlines flight, departing Sun, Dec 14 from Des Moines to St. Thomas, returning Thu, Dec 18, priced at $493 found 7 hours ago
American Airlines
Wed, Jan 7 - Tue, Jan 13
DSM
Des Moines
STT
St. Thomas
$497 Roundtrip, found 4 hours ago
$497
Roundtrip
found 4 hours ago
Select American Airlines flight, departing Wed, Jan 7 from Des Moines to St. Thomas, returning Tue, Jan 13, priced at $497 found 4 hours ago
United
Sat, Sep 27 - Fri, Oct 3
DSM
Des Moines
STT
St. Thomas
$499 Roundtrip, found 4 days ago
$499
Roundtrip
found 4 days ago
Select United flight, departing Sat, Sep 27 from Des Moines to St. Thomas, returning Fri, Oct 3, priced at $499 found 4 days ago
Delta
Sat, Sep 27 - Mon, Oct 13
DSM
Des Moines
STT
St. Thomas
$501 Roundtrip, found 3 days ago
$501
Roundtrip
found 3 days ago
Select Delta flight, departing Sat, Sep 27 from Des Moines to St. Thomas, returning Mon, Oct 13, priced at $501 found 3 days ago
American Airlines
Sat, Nov 29 - Sat, Dec 6
DSM
Des Moines
STT
St. Thomas
$503 Roundtrip, found 2 days ago
$503
Roundtrip
found 2 days ago
Select American Airlines flight, departing Sat, Nov 29 from Des Moines to St. Thomas, returning Sat, Dec 6, priced at $503 found 2 days ago
American Airlines
Mon, Jan 19 - Mon, Jan 26
DSM
Des Moines
STT
St. Thomas
$509 Roundtrip, found 2 days ago
$509
Roundtrip
found 2 days ago
Select American Airlines flight, departing Mon, Jan 19 from Des Moines to St. Thomas, returning Mon, Jan 26, priced at $509 found 2 days ago
Southwest Airlines
Mon, Apr 20 - Mon, Apr 27
DSM
Des Moines
STT
St. Thomas
$569 Roundtrip, found 5 days ago
$569
Roundtrip
found 5 days ago
Select Southwest Airlines flight, departing Mon, Apr 20 from Des Moines to St. Thomas, returning Mon, Apr 27, priced at $569 found 5 days ago

Find the cheapest month to fly from Des Moines (DSM) to St. Thomas (STT)

January is typically the cheapest month to fly

From $425 - $772 per traveler.

Frequently asked questions

How much does a flight from Des Moines Intl. Airport (DSM) to Cyril E. King Airport (STT) cost?
Snag a cheap one-way flight from $241 or cheap return flight from $485 from Des Moines Intl. Airport (DSM) to Cyril E. King Airport (STT) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Des Moines Intl. Airport (DSM) to Cyril E. King Airport (STT)?
Planning your trip for January may help you find better deals, as it's the cheapest month for flights between DSM and STT. You'll typically find the lowest fares during the off-season.
What is the cheapest airline that flies from Des Moines Intl. Airport (DSM) to Cyril E. King Airport (STT)?
To find the cheapest airline flying from DSM to STT, use Expedia's filter tool. Tailor your search based on what's important to you, such as preferred carriers and flight duration. You can then sort your results by "Price (lowest to highest)" to see the cheapest fares upfront.
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.

Travel information

Travel information

Origin airport
Des Moines Intl.
Destination airport
Cyril E. King
Airlines serving
American Airlines, Delta, Southwest Airlines, United
Roundtrip price
$485
Distance
2328 mi

Book with confidence

Book with confidence

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 January. 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 $241 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.

 

Des Moines to St. Thomas Flights

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*Available to One Key members.