$69 Cheap Frontier Airlines flights Chicago (ORD) to Las Vegas (LAS)

Grab cheap return Frontier Airlines flights from $130 from ORD to LAS by sorting your results from “Price (lowest to highest)” on Expedia. Or look for deals from $69 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.

Frontier Airlines flights to Las Vegas are generally more affordable in the quieter months of January and June. Whether you’re after a return or one-way ticket, you could score a better deal then.

Look for cheap Frontier Airlines flights from O’Hare Intl. Airport (ORD) to Harry Reid Intl. Airport (LAS) one to three months prior to 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 type and itinerary, the ideal day to book a domestic flight is generally Sunday and the most expensive 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.

Easily travel from O’Hare Intl. Airport (ORD) to Harry Reid Intl. Airport (LAS) on any of Frontier Airlines’s 4 weekly direct flights. Apply Expedia’s “Nonstop” and “Airline” filters to find the Frontier Airlines flight that’ll arrive at LAS at a time that suits you.

On average, it takes 4h 26m to fly nonstop from O’Hare Intl. Airport (ORD) to Harry Reid Intl. Airport (LAS) with Frontier Airlines.

Leaving ORD at 6:36PM UTC-6, the earliest Frontier Airlines flight to LAS arrives at 9:03PM UTC-8. Traveling earlier in the day means you’ll be less likely to encounter delays.* After something later? The last Frontier Airlines flight from ORD to LAS departs at 8:25PM UTC-6 and touches down at 10:51PM UTC-8.*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.

Harry Reid Intl. Airport (LAS) is the primary Las Vegas gateway for Frontier Airlines flights from O’Hare Intl. Airport (ORD).

A rewarding loyalty program and the ability to rack up points through Frontier Miles are the start of the reasons to fly from ORD to LAS with Frontier Airlines. Plus, when you sign up to Expedia’s free One Key™ program, you can receive OneKeyCash™* alongside Frontier Airlines’s loyalty program earnings. It’s yours to spend on future bookings.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

For the O’Hare Intl. Airport (ORD) to Harry Reid Intl. Airport (LAS) route, Frontier Airlines typically flies Airbus A320neo and Airbus A321 planes. Keep in mind that last-minute changes can occur for operational needs, meaning your flight could be on a different aircraft.

Changes are often free within 24 hours of making your booking, but your airline may charge a fee after that. For more details about modifying your flights, head to your “Trips,” select your flight and click on “Manage Booking.” If you want the flexibility to update your itinerary without extra charges, apply the “No cancel fee” or “Changes included” filter when organizing your trip.