$383 Cheap Flights from Philadelphia (PHL) to Casper (CPR)

Philadelphia (PHL) to Casper (CPR) at a glance

Travel from Philadelphia (PHL) to Casper (CPR) with a full-service airline on this convenient domestic short-haul route. Discover an itinerary that aligns with your travel plans as you visit Casper's renowned attractions and neighborhoods. Below, you’ll find essential information for flights departing from Philadelphia International Airport (PHL) to Natrona County International Airport (CPR).

• Fastest flight duration: around 5h 30m in-flight, plus roughly 1h 30m layover with one stop
• Route distance: roughly 1,600 miles (2,570 km)
• Flights per week: around 7 departures on average
• Typical fares (one-way): economy tickets often range from $185–$540, depending on seasonality and how far ahead you book

Flights from Philadelphia International Airport (PHL) to Natrona County International Airport (CPR)

Based on the latest traveler bookings, here are the top airlines favored for flights from Philadelphia to Casper, typically offering one-stop services with a popular layover at Denver International Airport (DEN), which lasts about 1 hour and 30 minutes. This flexibility allows you to balance price, total travel time, and cabin class for the ideal itinerary.

• United: This comprehensive airline provides a one-stop travel option, dominating the departures on this route. One-way ticket prices usually range from $185 to $540. Expect an in-flight duration of 5 hours and 30 minutes, with the overall travel time, including layover, totaling around 6 hours and 45 minutes.

How to find the best prices for flights from Philadelphia (PHL) to Casper (CPR)

Getting some of the best deals on flights from Philadelphia to Casper is all about timing and flexibility. Here are some key tips to help you save:

1. Best times to book and fly: cheaper fares are usually available when booking at least two months in advance, although most travelers tend to book between two to eight weeks ahead. Departures in the morning, from 5 a.m. to 12 p.m., often offer lower prices and are the most popular times, while flying on Tuesday typically results in cheaper rates, even though Thursday remains the busiest travel day.
2. Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
3. Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.* Find Casper hotel and flight deals.
4. Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
5. Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
6. Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.

*Members only. Savings vary and are not available on all bundles. Select hotels.

Arriving at Natrona County International Airport from Philadelphia International Airport

Casper welcomes travelers from Philadelphia with a range of transport options based on price, convenience, and proximity. Here's how to reach Casper efficiently:

• Hotel transfer: Transfers offer a convenient way to reach your hotel in Casper, with options including free hotel shuttles and private rides, which can be arranged in advance with your hotel.
• Car rental: Renting a car from Natrona County International Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Natrona County International Airport on Expedia.
• Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.
• Public transportation: From Natrona County International Airport, Casper Seaport, a seaport, is conveniently located about 0.4 miles away by car, making it easily accessible for travelers.

Philadelphia to Casper Flights

The cheapest times to fly from Philadelphia to Casper

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Philadelphia to Casper are during the month of December. You can find some of the cheapest flights from Philadelphia to Casper with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Philadelphia to Casper

Sunday is one of the best days to book for cheap flights from Philadelphia to Casper: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from Philadelphia to Casper

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Philadelphia to Casper in 2026. You can also book with separate airlines for your outbound and return journeys, from $383 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Philadelphia to Casper flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your Philadelphia to Casper airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.