$303 Cheap Flights from St. George (SGU) to Casper (CPR)

St. George (SGU) to Casper (CPR) at a glance

Travel with a full-service airline from St. George (SGU) to Casper (CPR) on this domestic short-haul route. Discover the itinerary that aligns with your travel plans as you visit Casper's renowned attractions and neighborhoods. Here, you'll find essential details for flights from St. George Airport (SGU) to Natrona County International Airport (CPR).

• Fastest flight duration: around 3h 15m in-flight, plus roughly 1h 45m layover with one stop
• Route distance: roughly 600 miles (970 km)
• Flights per week: around 7 departures on average
• Typical fares (one-way): economy tickets often range from $130–$455, depending on seasonality and how far ahead you book

Flights from St. George Airport (SGU) to Natrona County International Airport (CPR)

According to the latest traveler bookings, the most popular airlines flying from St. George to Casper are often chosen for their one-stop services, typically featuring a layover at Denver International Airport (DEN) with an average duration of about 1 hour and 45 minutes. This allows you to easily compare prices, total travel times, and cabin classes to discover the ideal itinerary for your journey.

• United: This full-service airline provides a convenient one-stop travel option, dominating the departures on this route. One-way ticket prices generally fall between $130 and $455. Expect an in-flight duration of 3 hours and 15 minutes, with a total travel time of about 5 hours, including layover.

Alternative routes from St. George (SGU) to Casper (CPR)

• Cedar City to Casper (CDC-CPR): Cedar City Regional Airport (CDC) lies approximately 51 miles from St. George Airport (SGU).
• Kanab to Casper (KNB-CPR): Kanab Airport (KNB) is located about 54 miles from St. George Airport (SGU).

How to find the best prices for flights from St. George (SGU) to Casper (CPR)

Getting some of the best deals on flights from St. George 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 found when booking 2 to 8 weeks in advance, although most travelers tend to book within 2 weeks. Departures in the afternoon, between 12 PM and 6 PM, not only offer lower prices but are also the most popular flight times. Additionally, flying on Friday provides both affordable rates and is the most favored 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 St. George Airport

Casper welcomes travelers from St. George with a range of transport options based on price, convenience, and proximity. For departures, St. George Airport is roughly a 20-minute drive (covering about 15 miles) from central St. George. 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 located about 0.4 miles away by car, providing easy access for travelers heading to the water.

St. George to Casper Flights

The cheapest times to fly from St. George 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 St. George to Casper are during the month of October. You can find some of the cheapest flights from St. George to Casper with Expedia's search tool and vast selection of airlines.

The best time to book a flight from St. George to Casper

Sunday is one of the best days to book for cheap flights from St. George 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 St. George 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 St. George to Casper in 2026. You can also book with separate airlines for your outbound and return journeys, from $303 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 St. George 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 St. George 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.