$419 Cheap United flights Casper (CPR) to Honolulu (HNL)

Finding cheap one-way United Airlines flights from CPR to HNL from $419 on Expedia couldn’t be easier — just filter by “Price (lowest to highest).” Alternatively, check out our budget-friendly return fares from $672 for your next getaway.**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.

Search for return or one-way flights to Honolulu in November or October. You could find lower fares with United Airlines during these off-peak months.

Look for affordable United Airlines flights from Natrona County Intl. Airport (CPR) to Daniel K. Inouye Intl. Airport (HNL) one to three months ahead of your day of departure. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. No matter the fare class and journey, the ideal day to book a domestic flight is usually Sunday and the most expensive day tends to be Monday. Passengers who book on a Sunday can save 6% on average compared to those who book on a Monday.**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.

To see if there’s a direct route from CPR to HNL with United Airlines or other airlines, use our “Nonstop” filter when browsing for tickets.

Sort your results by “Early Morning” and “Morning” to see the earliest flights from CPR to HNL. Leaving early means flight 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.

Jump on a United Airlines flight from Natrona County Intl. Airport (CPR) to Honolulu, and you’ll likely come in to Daniel K. Inouye Intl. Airport (HNL). This is the airline’s primary hub in this city.

Depart from CPR to HNL with United Airlines and you’ll enjoy a range of benefits including a rewarding loyalty program. When booking through Expedia as a United Mileage Plus and One Key™ member, you can also earn OneKeyCash™* to spend on select future travel purchases.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Depending on your ticket type, a fee is typically charged if you change or cancel your flight more than 24 hours after it’s been confirmed. To secure plane tickets with more flexibility, select our “No cancel fee” or “Changes included” filter when searching for flights. For more information on changing or canceling your reservation, go to “Trips,” select your flight and tick “Manage Booking.”