HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Casper

$375+ 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 8/21. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — CPR
Jul 26 — Aug 21
Sun 7/26
Sun 8/2
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Philadelphia to Casper 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 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 June 26, 2026.

This United Airlines deal was found by Cheapflights users on 6/22. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/213:48 pm
PHL
-
CPR
1 stop6h 39m
United Airlines
Tue 8/255:15 am
CPR
-
PHL
2 stops10h 39m
United Airlines
Deal found 6/22$375
This United Airlines deal was found by Cheapflights users on 6/25. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2910:05 am
PHL
-
CPR
1 stop11h 04m
United Airlines
Tue 9/110:01 am
CPR
-
PHL
1 stop7h 24m
United Airlines
Deal found 6/25$438
This United Airlines deal was found by Cheapflights users on 6/26. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/1110:00 am
PHL
-
CPR
1 stop6h 40m
United Airlines
Wed 7/151:23 pm
CPR
-
PHL
2 stops9h 34m
United Airlines
Deal found 6/26$505
This United Airlines deal was found by Cheapflights users on 6/24. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/264:14 pm
PHL
-
CPR
1 stop6h 19m
United Airlines
Tue 6/3011:21 am
CPR
-
PHL
2 stops10h 23m
United Airlines
Deal found 6/24$666
This United Airlines deal was found by Cheapflights users on 6/23. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/248:05 am
PHL
-
CPR
2 stops15h 54m
United Airlines
Sun 6/286:13 pm
CPR
-
PHL
1 stop9h 18m
United Airlines
Deal found 6/23$714

Find flight deals from Philadelphia to Casper

Discover tips and strategies to find the most affordable flight options for your journey from Philadelphia (PHL) to Casper (CPR). 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 June 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$375
(United Airlines)

Popular in

June

Cheapest in

August

Average price

$781
Provider with most accurate pricing for Philadelphia-Casper Natrona County flight deals.
Search Deals
Provider most trusted by Cheapflights users for Philadelphia-Casper Natrona County flights.
Search Deals
From Philadelphia to Casper Natrona County
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($100 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($25 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Philadelphia to Casper 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 2,558,603 searches. Data last updated June 26, 2026.
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

Cheapest round-trip

PhiladelphiaCasper

PHL - CPR

PHLCPR

Philadelphia

Sat 8/29

10:05 am-7:09 pm

1 stop11h 04m

Casper Natrona County

Tue 9/1

10:01 am-7:25 pm

1 stop7h 24m

$438

PhiladelphiaCasper

PHL - CPR

PHLCPR

Philadelphia

Fri 8/21

3:48 pm-9:59 pm

1 stop8h 11m

Casper Natrona County

Tue 8/25

11:24 am-7:25 pm

1 stop6h 01m

$438

PhiladelphiaCasper

PHL - CPR

PHLCPR

Philadelphia

Sat 7/11

10:00 am-2:40 pm

1 stop6h 40m

Casper Natrona County

Wed 7/15

1:23 pm-12:57 am

2 stops9h 34m

$505

PhiladelphiaCasper

PHL - CPR

PHLCPR

Philadelphia

Mon 7/20

4:14 pm-8:33 pm

1 stop6h 19m

Casper Natrona County

Sat 7/25

1:23 pm-12:57 am

2 stops9h 34m

$810
Quickest round-trip

PhiladelphiaCasper

PHL - CPR

PHLCPR

Philadelphia

Mon 7/13

4:14 pm-8:33 pm

1 stop6h 19m

Casper Natrona County

Mon 7/20

3:15 pm-11:30 pm

1 stop6h 15m

$917

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/24

Sorted by cheapest first
  • Most accurate provider: When it comes to deals on Philadelphia-Casper flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Philadelphia-Casper flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Philadelphia-Casper flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Philadelphia-Casper 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 Philadelphia-Casper 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 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 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 June 26, 2026.
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
9,893 reviews

Comfort

7.3

Overall

7.4

Entertainment

7.1

Boarding

7.7

Food

6.6

Crew

8.1

Reviews

1 / 20
6.0
Good

ROHIT,Jun 2026

IND - EWR

It should not be delayed by 2 hours. I missed the important event due to this
United Airlines
7.4
Good
9,893 reviews
United Airlines
7.4
Good
9,893 reviews

Comfort

7.3

Overall

7.4

Entertainment

7.1

Boarding

7.7

Food

6.6

Crew

8.1

Reviews

1 / 20
6.0
Good

ROHIT,Jun 2026

IND - EWR

It should not be delayed by 2 hours. I missed the important event due to this

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.

  • How long is the flight from Philadelphia to Casper?

    There are many flights that can get you from Philadelphia to Casper in 8h 11m. Fly via United Airlines to get the fastest option. Airlines will cover a distance of 1621 mi.

  • 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 $314. This flight start at 44% 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.

See more FAQs

Traveling to a place near Casper?

Book flights to Casper if you plan to visit one of these locations
Rawlins

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 Philadelphia to Casper

Discover the top airline that operate flights from Philadelphia to Casper. 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 2,558,603 searches. Data last updated June 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$314Average$493FlexibilityNo 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.