The cheapest times to fly from CPR to STN are

  • March 26th to June 17th
  • July 16th to October 21st

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 STN is late April. Prices can be as high as $5140 for Saturday flights during early to mid March, or as low as $1021 for Tuesday flights around late April.


When to Fly to London

Flying from Casper, WY (CPR) to London (STN) will usually cost between $1167 to $4172 per person if booking more than four weeks in advance. On average the very cheapest time to fly is late April with an average ticket price of $1512. Due to high demand the most expensive time to fly is early to mid March, with an average price of $3184. Planning your trip to low-cost times can easily save you $1672 on economy flights and even more on first-class flights. Generally, any price below $1989 can be considered a good price for a round-trip CPR to STN flight.

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

CPR to STN Flight Prices

Compared to other flights, the CPR to STN flight is 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 $0.27, which is below average.


Flight Prices by Day of the Week

Tuesday is usually the cheapest day to depart and return on this flight. Saturdays are the most expensive days to fly to London, and Fridays are the most expensive days to return to Casper. Selecting flights on the least expensive days could save you up to $1927 (50%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $1646. Return trip prices are from the STN 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 STN can generally find a 0-layover flight. Because there is a direct flight option the real-world direct flight time of 9 hour 12 minutes may be realistic.


Flight Hacking CPR to STN

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 STN — but Champion Traveler does!

Hack #1: Newark, NJ (CPR > EWR > STN)

  • Price for both tickets: $1118
  • Average savings: $871 (43.79%)

See CPR to EWR flights

Hack #2: Los Angeles, CA (CPR > LAX > STN)

  • Price for both tickets: $1140
  • Average savings: $850 (42.71%)

See CPR to LAX flights

Hack #3: San Francisco, CA (CPR > SFO > STN)

  • Price for both tickets: $1172
  • Average savings: $817 (41.08%)

See CPR to SFO flights


Flight Questions Answered

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

Which airlines fly this route?

You can find 9 major airlines flying this route most often: Air Canada, Delta, Eurowings, KLM, Lufthansa, SAS, SWISS, Turkish Airlines, United, and potentially more during busy seasons.

How far away is it from London Stansted Airport to Casper/Natrona County International Airport?

The distance between the two airports is roughly 4564 miles or 7345 kilometers.

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

The real-world flight time for a nonstop CPR to STN flight is about 9 hour 12 minutes.

How many flights go between Casper, WY and London?

It depends on the day of the week and the date, but a typical day might have around 11 available flights from CPR to STN.


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 STN
Destination airport name London Stansted Airport
City London
Country the United Kingdom
Latitude 51.9
Longitude 0.2


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.