The cheapest times to fly from CPR to STT are

  • June 4th to July 8th
  • July 30th to August 12th
  • October 29th to March 18th (except the weeks of November 19th and December 24th)

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from CPR to STT is late January and early February. Prices can be as high as $2311 for Tuesday flights during early September, or as low as $1136 for Friday flights around late January and early February.


When to Fly to Saint Thomas

Flying from Casper, WY (CPR) to Charlotte Amalie, VI (STT) will usually cost between $1138 to $1730 per person if booking more than four weeks in advance. On average the very cheapest time to fly is late January and early February with an average ticket price of $1152. Due to high demand the most expensive time to fly is early September, with an average price of $1738. Planning your trip to low-cost times can easily save you $585 on economy flights and even more on first-class flights. Generally, any price below $1367 can be considered a good price for a round-trip CPR to STT flight.

See below for a graph of average weekly prices for the CPR to STT route. All prices are for round-trip tickets in USD.

CPR to STT Flight Prices

Compared to other flights, the CPR to STT flight is slightly more expensive than the average and costs more than the average flight leaving from Casper. The average price per mile (for a direct flight) is $0.29, which is below average.


Flight Prices by Day of the Week

Friday is usually the cheapest day to fly to STT, and Monday the cheapest day to fly back into CPR. Tuesdays are the most expensive days to fly to Saint Thomas, and Sundays are the most expensive days to return to Casper. Selecting flights on the least expensive days could save you up to $157 (10%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Friday and returning a week later will cost an average of $1299. Return trip prices are from the STT to CPR flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from CPR to STT can generally find a 2-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 6 hour 17 minutes may not be realistic.


Flight Hacking CPR to STT

Flight hacking is when you book two tickets instead of a layover, sometimes with different airlines. You will need to either bring only a carry-on bag (highly recommended) or leave yourself plenty of time to go through security again. Flight hacking is completely allowed, but airlines don’t always tell you the cheapest way to get from CPR to STT — but Champion Traveler does!

Hack #1: Denver, CO (CPR > DEN > STT)

  • Price for both tickets: $842
  • Average savings: $525 (38.42%)

See CPR to DEN flights

Hack #2: Salt Lake City, UT (CPR > SLC > STT)

  • Price for both tickets: $917
  • Average savings: $450 (32.89%)

See CPR to SLC flights

Hack #3: Los Angeles, CA (CPR > LAX > STT)

  • Price for both tickets: $919
  • Average savings: $448 (32.78%)

See CPR to LAX flights


Flight Questions Answered

Still have questions about flying from CPR to STT? We’ve got answers.

Which airlines fly this route?

You can find 6 major airlines flying this route most often: American, Cape Air, Delta, JetBlue, Silver Airways, United, and potentially more during busy seasons.

How far away is it from Cyril E King Airport to Casper/Natrona County International Airport?

The distance between the two airports is roughly 2949 miles or 4746 kilometers.

How long does it take to fly from CPR to STT?

The real-world flight time for a nonstop CPR to STT flight is about 6 hour 17 minutes.

How many flights go between Casper, WY and Charlotte Amalie, VI?

It depends on the day of the week and the date, but a typical day might have around 20 available flights from CPR to STT.


Airport Location Info


Departing Airport

Origination code CPR
Origination airport name Casper/Natrona County International Airport
City Casper, WY
Country the United States
Latitude 42.9
Longitude -106.5

Return Airport

Destination code STT
Destination airport name Cyril E King Airport
City Charlotte Amalie, VI
Country the United States
Latitude 18.3
Longitude -65


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.