$160 Cheap United flights Newark Liberty Intl. Airport (EWR) to Rapid City (RAP)

Finding cheap one-way United Airlines flights from EWR to RAP from $160 on Expedia is simple — just filter by “Price (lowest to highest).” Or check out our budget-friendly return fares from $283 for your next exciting adventure.**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 round-trip or one-way flights to Rapid City in January or November. You could find an affordable fare with United Airlines during these off-season months.

Search for affordable United Airlines flights from Liberty Intl. Airport (EWR) to Rapid City Regional Airport (RAP) one to three months before your 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 itinerary, the best day of the week to book a domestic flight is usually Sunday and the most expensive is typically Monday. Passengers who book on a Sunday can save 6% on average compared to those who book their travel 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.

Use our “Nonstop” filter when browsing for direct United Airlines flights from EWR to RAP. You’ll also be able to compare other airlines servicing the same nonstop trip.

Browse United Airlines’s earliest flights from EWR to RAP by checking the “Morning” and “Early Morning” filters. Not only will you arrive sooner, early departures are also 20% less likely to be canceled.**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.

Rapid City Regional Airport (RAP) is the main Rapid City hub for United Airlines flights from Liberty Intl. Airport (EWR).

With a rewarding loyalty program, United Airlines is a favorite of many passengers journeying from EWR to RAP. Plus, as a United Mileage Plus and One Key™ member booking through Expedia, you can earn OneKeyCash™* on eligible flights along with your airline miles.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

In most cases, you can cancel or reschedule your flight, although there may be additional charges if your booking was made over 24 hours ago. Prefer to keep your options open? Make use of Expedia’s “Changes included” or “No cancel fee” filter to find flights that won’t charge extra if you have to alter your plans. To update your booking, go to “Trips,” select your flight and click on “Manage Booking” for more information.