$95 Cheap United flights Chicago (ORD) to Las Vegas (LAS)

You can find affordable return United Airlines flights from $189 from ORD to LAS by sorting your results from “Price (lowest to highest)” on Expedia. Or search for bargains from $95 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.

Search for one-way or return flights to Las Vegas in January or June. You could find cheaper fares with United Airlines during these quieter months.

To find cheap United Airlines fares from O’Hare Intl. Airport (ORD) to Harry Reid Intl. Airport (LAS), start searching one to three months before your planned departure. Reserving 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 how much you pay. Sunday is usually the cheapest, while Monday is often the most expensive for domestic flights. You can save 6% on average by choosing to book 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.

Depart on one of United Airlines’s 39 weekly direct flights from O’Hare Intl. Airport (ORD) to Harry Reid Intl. Airport (LAS). To see what’s available, enter your origin, destination and dates and hit search. Then apply the “Nonstop” and “Airline” filters.

Leave O’Hare Intl. Airport (ORD) for Harry Reid Intl. Airport (LAS) on a nonstop United Airlines flight, and you’ll be in the skies for approximately 4h 10m.

Sunday has the most United Airlines flights from O’Hare Intl. Airport (ORD) to Harry Reid Intl. Airport (LAS). With 6 daily departures, this is the best day to book something that will fit your plans.

The earliest United Airlines flight from ORD to LAS takes off at 8:50AM UTC-6, landing at 11:01AM UTC-8. If you prefer to set off later in the day, the last United Airlines flight leaves ORD at 8:04PM UTC-6 and lands at LAS at 10:15PM UTC-8. Flying early is often a good option as morning and mid-morning flights are less likely to experience cancellations.**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 O’Hare Intl. Airport (ORD) to Las Vegas touch down at Harry Reid Intl. Airport (LAS). This is the main entry point here.

Journey from ORD to LAS with United Airlines and look forward to a range of benefits including a rewarding loyalty program. When you book 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.

United Airlines generally uses Boeing 737-900 planes for flights from O’Hare Intl. Airport (ORD) to Harry Reid Intl. Airport (LAS). This airline also operates the Airbus A321neo on this route. Keep in mind that aircraft type can change due to operational needs, so the plane you board might be different on the day you travel.

Changes are generally free within 24 hours of making a booking, but your airline may charge you after that time. For further information about altering your flights, go to your “Trips,” select your flight and click on “Manage Booking.” If you’d like the flexibility to change your plans without additional charges, check the “No cancel fee” or “Changes included” filter when planning your trip.