What is the cheapest airline to fly from Philadelphia to Casper round-trip?

Cheapflights users have booked flights from Philadelphia to Casper round-trip from $368. This flight start at 41% lower than the current average price 3 months from now.

What is the cheapest month to book a flight from Philadelphia to Casper?

Currently, January is the cheapest month in which you can book a flight from Philadelphia to Casper (average of $348). Flying from Philadelphia to Casper in June is currently the most expensive (average of $500). 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.

What is the cheapest day to fly from Philadelphia to Casper?

Travelers seeking maximum savings on their Philadelphia to Casper flight should consider departing on Thursday mornings when fares are most often at their lowest. Wednesday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Casper ranges from 0.5 - 2.0 inches per month. May is typically the wettest month, when rainfall can reach 2.0 in. January is typically the driest time to visit Casper when rainfall is around 0.5 in.

If weather is an important factor for your trip to Casper, 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 69.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 23.0 F).

What is the cheapest day to fly round-trip from Philadelphia to Casper?

Users have found that leaving on a Wednesday can be a cost-effective option. It’s possible to save up to 103% on your flight compared to booking on days when demand is much higher.

What is the cheapest month to fly from Philadelphia to Casper?

January is one of the best times of the year to fly to Casper from Philadelphia. Prices for January average $626 per person but you can even find prices for as low as $329. The most expensive prices can be found in the month of May. Opting for a January flight can save you 58% on your journey compared to booking in May

What is the cheapest time of day to fly from PHL to CPR?

A simple way to save on the total cost of your ticket is to fly from Philadelphia to Casper in the morning. If you’re flexible enough to do this you can expect to save up to 16% on your trip compared to booking a flight at noon.

Can I find deals for flights from Philadelphia to Casper that include hotel bookings?

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

How can I find direct flights from Philadelphia to Casper?

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

Can I find deals for business class flights from Philadelphia to Casper?

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

$368+ Flights from Philadelphia to Casper

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Cheap flight deals from Philadelphia to Casper

Round-trip from	$368 (United Airlines)
Popular in	May
Cheapest in	January
Average price	$530

From Philadelphia to Casper Natrona County

Search Deals

Highest demand for flights based on searches. 18% potential increase in price ($146 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 7% potential price decrease ($41 potential savings vs. average RT price).

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Average for round-trip flights in July 2025

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Find flight deals from Philadelphia to Casper

Cheapest flights from Philadelphia to Casper
Explore the most affordable flight options available from Philadelphia to Casper. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

Sat 8/239:55 amPHL - CPR

1 stop11h 14mUnited Airlines

Tue 8/261:37 pmCPR - PHL

1 stop7h 53mUnited Airlines

Deal found 7/2

$368

Best flights from Philadelphia to Casper
Discover carefully curated flight deals from Philadelphia to Casper that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 3, 2025.

Sat 8/239:55 amPHL - CPR

1 stop11h 14mUnited Airlines

Tue 8/261:37 pmCPR - PHL

1 stop7h 53mUnited Airlines

Deal found 7/2

$368

Last-minute flights from Philadelphia to Casper
Discover last-minute flight deals from Philadelphia to Casper. Data last updated July 3, 2025 and is based on user searches.

Tue 7/83:39 pmPHL - CPR

1 stop6h 47mUnited Airlines

Sat 7/123:16 pmCPR - PHL

1 stop6h 03mUnited Airlines

Deal found 7/3

$829

Sat 8/239:55 amPHL - CPR

1 stop11h 14mUnited Airlines

Tue 8/261:37 pmCPR - PHL

1 stop7h 53mUnited Airlines

Deal found 7/2

$368

Cheapflights Fare Finder

Use the filters below to find and compare flights from Philadelphia to Casper that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PhiladelphiaCasper

PHL - CPR

PHLCPR

Philadelphia

Sat 8/23

9:55 am-7:09 pm

1 stop11h 14m

Casper Natrona County

Tue 8/26

1:37 pm-11:30 pm

1 stop7h 53m

$368

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

Best time to book a flight from Philadelphia to Casper

Have a flexible travel schedule? Discover the best time to fly to Casper from Philadelphia 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.

Reviews of airlines servicing Casper

Get a feel of what it's like to fly with United Airlines from Philadelphia to Casper by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

8,861 reviews

Reviews

1 / 20

2.0

Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

United Airlines

7.4

Good

8,861 reviews

United Airlines

7.4

Good

8,861 reviews

Reviews

1 / 20

2.0

Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Related info for your journey

What is the cheapest airline to fly from Philadelphia to Casper round-trip?
Cheapflights users have booked flights from Philadelphia to Casper round-trip from $368. This flight start at 41% lower than the current average price 3 months from now.
Can I find deals for flights from Philadelphia to Casper that include hotel bookings?
Yes. In addition to deals on Philadelphia to Casper flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Philadelphia to Casper?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Philadelphia to Casper.
Can I find deals for business class flights from Philadelphia to Casper?
Yes. Cheapflights offers flight deals from Philadelphia to Casper by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Philadelphia to Casper?
Currently, January is the cheapest month in which you can book a flight from Philadelphia to Casper (average of $348). Flying from Philadelphia to Casper in June is currently the most expensive (average of $500). 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

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Top airline flying from Philadelphia to Casper

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$316	Average$568	FlexibilityNo cancel fee	On-time69%

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$368+ Cheap flights from Philadelphia to Casper (PHL - CPR)

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 8/23. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Philadelphia to Casper with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Philadelphia to Casper

Round-trip from

Popular in

Cheapest in

Average price

Find flight deals from Philadelphia to Casper

Cheapest flights from Philadelphia to CasperExplore the most affordable flight options available from Philadelphia to Casper. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

Explore the most affordable flight options available from Philadelphia to Casper. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Philadelphia to Casper that are best for you.

Best time to book a flight from Philadelphia to Casper

Have a flexible travel schedule? Discover the best time to fly to Casper from Philadelphia with our price prediction graph.

Reviews of airlines servicing Casper

Get insights into the airlines that provide service to Casper. 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 Casper. Reviews last updated July 3, 2025.

Get a feel of what it's like to fly with United Airlines from Philadelphia to Casper by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

What is the cheapest airline to fly from Philadelphia to Casper round-trip?

Can I find deals for flights from Philadelphia to Casper that include hotel bookings?

How can I find direct flights from Philadelphia to Casper?

Can I find deals for business class flights from Philadelphia to Casper?

What is the cheapest month to book a flight from Philadelphia to Casper?

Traveling to a place near Philadelphia?

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Alternative routes for Philadelphia to Casper

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Top airline flying from Philadelphia to Casper

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Book with Flexibility

Travel Smart

Cheapest flights from Philadelphia to Casper
Explore the most affordable flight options available from Philadelphia to Casper. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.