$99 Cheap United flights Las Vegas (LAS) to Portland (PDX)

Grab affordable return United Airlines flights from $197 from LAS to PDX by sorting your results from “Price (lowest to highest)” on Expedia. Or search for options from $99 for a one-way journey.**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.

United Airlines flights to Portland tend to be more affordable in the low-season months of January and December. Whether you’re searching for a round-trip or one-way ticket, you could land a better deal then.

Start searching one to three months before your departure to get cheaper fares on United Airlines flights from Harry Reid Intl. Airport (LAS) to Portland Intl. Airport (PDX). You can save 25% by booking your domestic flight 34 to 86 days in advance versus last-minute reservations made 6 to 12 days out. You could also cut costs by buying your fare on a Sunday, as it’s 6% cheaper on average than a Monday, the most expensive day to book.* Get the timing right, and you can enjoy significant savings on domestic flights.*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.

Fill in your dates, hit search and check “Nonstop” on Expedia to browse any direct flights from LAS to PDX with United Airlines or other airlines.

Search United Airlines’s earliest flights from LAS to PDX by using the “Early Morning” and “Morning” filters. Not only will you get to your destination 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.

United Airlines flights from Harry Reid Intl. Airport (LAS) to Portland come in to Portland Intl. Airport (PDX). This is the main entry point to this city.

Offering a rewarding loyalty program, United Airlines is a top pick for many travelers journeying from LAS to PDX. 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.

It’s usually possible to cancel or modify your flight, although there may be additional fees if you made your booking over 24 hours ago. Need flexible options? Make use of Expedia’s “No cancel fee” or “Changes included” filter to find flights that won’t charge you extra if you have to alter your plans. To modify your itinerary, head to “Trips,” select your flight and click on “Manage Booking” for more information.