Cheap Delta flights Portland (PDX) to Casper (CPR)

Landing cheap one-way Delta Air Lines flights from PDX to CPR on Expedia couldn’t be simpler — just filter by “Price (lowest to highest).” Or check out our affordable return fares for your next break.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

Look for return or one-way flights to Casper in January or December. You could find a cheap fare with Delta Air Lines during these quieter months.

To find cheap Delta Air Lines fares from Portland Intl. Airport (PDX) to Natrona County Intl. Airport (CPR), start searching one to three months before your intended departure. Securing domestic flights 34 to 86 days in advance could save you 25% compared to booking just 6 to 12 days ahead. The day you book can also affect the cost. Sunday tends to be the cheapest, while Monday is often the most expensive for domestic flights. You can save 6% on average by booking your trip on a Sunday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

Click on our “Nonstop” filter when searching for direct Delta Air Lines flights from PDX to CPR. It’s also a good way to compare other carriers offering the same direct route.

To find the earliest departure from PDX to CPR with Delta Air Lines, filter your search by “Early Morning” and “Morning.” Choosing an early flight generally means cancellations are less likely.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

Natrona County Intl. Airport (CPR) is the main Casper hub for Delta Air Lines flights from Portland Intl. Airport (PDX).

Offering an excellent in-flight experience and a rewarding loyalty program, Delta Air Lines is the leading choice for many travelers heading from PDX to CPR. Plus, if you’re a Delta SkyMiles and One Key™ member booking with Expedia, you could earn OneKeyCash™* on eligible flights on top of your airline miles, which can be used on future trips.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Changes are typically free within 24 hours of making your booking, but your airline may add a charge after that. For further information about modifying your reservation, go to your “Trips,” select your flight and click on “Manage Booking.” If you’d like the freedom to make changes without additional charges, check the “Changes included” and “No cancel fee” filters when organizing your trip.