Popular airlines from Rapid City Regional Airport (RAP) to Cyril E. King Airport (STT)

Cheap Flights from Rapid City to St. Thomas (RAP-STT)

Prices were available within the past 7 days and start at $343 for one-way flights and $591 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Tue, Jan 13 - Thu, Jan 22
RAP
Rapid City
STT
St. Thomas
$591 Roundtrip, found 2 days ago
$591
Roundtrip
found 2 days ago
Select United flight, departing Tue, Jan 13 from Rapid City to St. Thomas, returning Thu, Jan 22, priced at $591 found 2 days ago
United
Mon, Jan 12 - Thu, Jan 22
RAP
Rapid City
STT
St. Thomas
$641 Roundtrip, found 2 days ago
$641
Roundtrip
found 2 days ago
Select United flight, departing Mon, Jan 12 from Rapid City to St. Thomas, returning Thu, Jan 22, priced at $641 found 2 days ago
American Airlines
Wed, Apr 15 - Mon, Apr 20
RAP
Rapid City
STT
St. Thomas
$693 Roundtrip, found 2 days ago
$693
Roundtrip
found 2 days ago
Select American Airlines flight, departing Wed, Apr 15 from Rapid City to St. Thomas, returning Mon, Apr 20, priced at $693 found 2 days ago
United
Tue, Jan 13 - Wed, Jan 21
RAP
Rapid City
STT
St. Thomas
$706 Roundtrip, found 2 days ago
$706
Roundtrip
found 2 days ago
Select United flight, departing Tue, Jan 13 from Rapid City to St. Thomas, returning Wed, Jan 21, priced at $706 found 2 days ago
United
Thu, Nov 27 - Thu, Dec 4
RAP
Rapid City
STT
St. Thomas
$714 Roundtrip, found 5 days ago
$714
Roundtrip
found 5 days ago
Select United flight, departing Thu, Nov 27 from Rapid City to St. Thomas, returning Thu, Dec 4, priced at $714 found 5 days ago
American Airlines
Mon, Jan 12 - Tue, Jan 20
RAP
Rapid City
STT
St. Thomas
$719 Roundtrip, found 2 days ago
$719
Roundtrip
found 2 days ago
Select American Airlines flight, departing Mon, Jan 12 from Rapid City to St. Thomas, returning Tue, Jan 20, priced at $719 found 2 days ago
United
Sun, Jan 18 - Thu, Jan 22
RAP
Rapid City
STT
St. Thomas
$728 Roundtrip, found 2 days ago
$728
Roundtrip
found 2 days ago
Select United flight, departing Sun, Jan 18 from Rapid City to St. Thomas, returning Thu, Jan 22, priced at $728 found 2 days ago
American Airlines
Fri, Jan 16 - Tue, Jan 20
RAP
Rapid City
STT
St. Thomas
$744 Roundtrip, found 2 days ago
$744
Roundtrip
found 2 days ago
Select American Airlines flight, departing Fri, Jan 16 from Rapid City to St. Thomas, returning Tue, Jan 20, priced at $744 found 2 days ago
United
Tue, Mar 17 - Tue, Mar 24
RAP
Rapid City
STT
St. Thomas
$750 Roundtrip, found 2 days ago
$750
Roundtrip
found 2 days ago
Select United flight, departing Tue, Mar 17 from Rapid City to St. Thomas, returning Tue, Mar 24, priced at $750 found 2 days ago
United
Tue, Jan 13 - Fri, Jan 16
RAP
Rapid City
STT
St. Thomas
$750 Roundtrip, found 2 days ago
$750
Roundtrip
found 2 days ago
Select United flight, departing Tue, Jan 13 from Rapid City to St. Thomas, returning Fri, Jan 16, priced at $750 found 2 days ago

Frequently asked questions

How much does a flight from Rapid City Regional Airport (RAP) to Cyril E. King Airport (STT) cost?
Get a cheap one-way flight from $343 or cheap return flight from $591 from Rapid City Regional Airport (RAP) 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 Rapid City Regional Airport (RAP) to Cyril E. King Airport (STT)?
The cheapest month to fly from RAP to STT is January, when demand is low. Off-peak months are typically when you'll find cheap fares for travel between these airports.
What is the cheapest airline that flies from Rapid City Regional Airport (RAP) to Cyril E. King Airport (STT)?
To find the cheapest airline flying from RAP to STT, use Expedia's filter tool. Customize your search based on your travel needs, such as preferred carriers and seat class. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from Rapid City Regional Airport (RAP) to Cyril E. King Airport (STT)?
There are no daily direct flights available from Rapid City Regional Airport (RAP) to Cyril E. King Airport (STT). But you can choose flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be on your way in no time.
What day of the week has the most flights from RAP to STT?
You'll generally find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Rapid City Regional Airport (RAP) to Cyril E. King Airport (STT)?
To avoid possible delays on the Rapid City Regional Airport (RAP) to Cyril E. King Airport (STT) route, fly before 3 PM. Later departures are 22% more likely to be canceled.**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 Rapid City Regional Airport (RAP) to Cyril E. King Airport (STT) last-minute?
Booking your plane ticket from RAP to STT right before your trip is typically more expensive. However, if you're flexible with your departure times and dates, you could snag a cheap last-minute fare.
Is it cheaper to book a RAP to STT flight and hotel package?
Compared with arranging hotels and flights separately, booking a RAP to STT flight and hotel package with Expedia could result in significant savings. Better still, having everything in one place will take the stress out of travel planning. Just secure your flights and select from our wide range of stays, then tailor your trip with extras like tours and car rentals.
Can I cancel or change the date of my flight from Rapid City Regional Airport (RAP) to Cyril E. King Airport (STT)?
If you reserved your RAP to STT flight within the last 24 hours, you may be able to modify or cancel it at no cost. Depending on the airline and the type of ticket you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for more information.

Book with confidence

Rapid City to St. Thomas Flights

The cheapest times to fly from Rapid City 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 Rapid City to St. Thomas are during the month of January. You can find some of the cheapest flights from Rapid City to St. Thomas with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Rapid City to St. Thomas

Sunday is one of the best days to book for cheap flights from Rapid City 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 Rapid City 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 Rapid City to St. Thomas in 2025. You can also book with separate airlines for your outbound and return journeys, from $343 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 Rapid City 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 Rapid City 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.

 

Rapid City to St. Thomas Flights

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*Available to One Key members.