HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
St. Louis

$379+ Cheap flights from Casper to St. Louis (CPR - STL)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/19. Fares are subject to change and may not be available on all flights or dates of travel.
CPR — STL
Nov 5 — Nov 121
1 adult
Tue 11/5
Tue 11/12
We work with more than 300 partners to bring you better travel deals

...and more

Find cheap flights from Casper to St. Louis with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Casper to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Casper (CPR) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 31, 2024.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$379
(United)
Provider with most accurate pricing for Casper Natrona County-Lambert-St Louis flight deals.
Search Deals
Provider most trusted by Cheapflights users for Casper Natrona County-Lambert-St Louis flights.
Search Deals
From Casper Natrona County to Lambert-St Louis
Search Deals

Find flight deals from Casper to St. Louis

Cheapest flights from Casper to St. Louis
Explore the most affordable flight options available from Casper to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 31, 2024.

This United deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/191:36 pmCPR - STL
1 stop7h 40mUnited Airlines
Thu 1/24:43 pmSTL - CPR
1 stop6h 32mUnited Airlines
Deal found 10/31$379

Find flights from Casper to St. Louis within your budget

Customize your flight search to find flights from Casper to St. Louis that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,570,725 searches. Data last updated October 31, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

CasperSt. Louis

CPR - STL

CPRSTL

Casper Natrona County

Thu 12/19

1:36 pm-10:16 pm

1 stop7h 40m

Lambert-St Louis

Thu 1/2

4:43 pm-10:15 pm

1 stop6h 32m

$379

Flights are sorted by cheapest first

Deals found on 10/31

Compare providers for flights from Casper to St. Louis

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Casper to St. Louis in October.
ProviderPrice AccuracyTrust Score*Cancellation Policy
ExpediaPrice Accuracy1 starTrust Score*3 starsCancellation PolicyAirline Policy
FlightHubPrice Accuracy3 starsTrust Score*3 starsCancellation PolicyAirline Policy

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Casper-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Casper-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Casper-St. Louis flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Casper-St. Louis flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Casper-St. Louis flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Casper to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Casper with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Casper to St. Louis

Get recent, data-driven insights about flights from Casper to St. Louis including ideal travel times, pricing trends, and more.

Rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

Temperature in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature totals by month.

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St. Louis. Reviews last updated October 31, 2024.
United Airlines
7.4
Good
9,240 reviews

Overall

7.4

Comfort

7.3

Food

6.7

Boarding

7.7

Entertainment

7.1

Crew

8.1

Reviews

1 / 10

Terribly delayed flight, missed ongoing flight, hotel very downmarket Food voucher not accepted in hotel

United Airlines
7.4
Good
9,240 reviews
United Airlines
7.4
Good
9,240 reviews

Overall

7.4

Comfort

7.3

Food

6.7

Boarding

7.7

Entertainment

7.1

Crew

8.1

Reviews

1 / 10

Terribly delayed flight, missed ongoing flight, hotel very downmarket Food voucher not accepted in hotel

Related info for your journey

Find useful and relevant information for your journey from Casper to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find flights from Casper to St. Louis for under $400 on Cheapflights?

    Yes, there are multiple flights from Casper to St. Louis for under $400. The cheapest flight booked recently is on United Airlines for just $379, but on average you can expect to pay $379.

  • What is the cheapest airline to fly from Casper to St. Louis round-trip?

    United Airlines, at $379, was found to be the cheapest airline from Casper to St. Louis..

  • What does CPR to STL mean?

    These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a Casper Natrona County Airport to Lambert-St Louis Airport flight would often be abbreviated as a CPR to STL flight.

  • Can I find deals for flights from Casper to St. Louis that include extra baggage allowance?

    The amount of baggage you can bring on your Casper to St. Louis flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Casper to St. Louis with specific airlines?

    Yes, Cheapflights allows you to browse and filter Casper to St. Louis flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Casper to St. Louis that include hotel bookings?

    Yes. In addition to deals on Casper to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Casper to St. Louis?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Casper to St. Louis.

  • Can I find deals for business class flights from Casper to St. Louis?

    Yes. Cheapflights offers flight deals from Casper to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Casper to St. Louis that allow pets onboard?

    Many airlines flying from Casper to St. Louis offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Casper to St. Louis?

    Yes, you can often find last-minute deals on Casper to St. Louis flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Casper to St. Louis flight deals updated?

    The Casper to St. Louis flight deals you see on this page were last updated on 10/31.

  • What is the cheapest month to book a flight from Casper to St. Louis?

    Currently, September is the cheapest month in which you can book a flight from Casper to St. Louis (average of $308). Flying from Casper to St. Louis in March is currently the most expensive (average of $356). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top airline flying from Casper to St. Louis

Discover the top airline that operate flights from Casper to St. Louis. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,570,725 searches. Data last updated October 31, 2024.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$323Average$535FlexibilityNo cancel feeOn-time69%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
View all available airlines