$105 Cheap Frontier Airlines flights Buffalo (BUF) to Las Vegas (LAS)

Apply the “Price (lowest to highest)” filter on Expedia to find cheap Frontier Airlines round-trip flights from $210 from BUF to LAS. Affordable one-way fares from $105 are also available.**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 cheaper in the off-peak months of January and June. Whether you’re in search of a one-way or round-trip ticket, you could land a better deal then.

Look for affordable Frontier Airlines flights from Buffalo Niagara Intl. Airport (BUF) to Harry Reid Intl. Airport (LAS) one to three months prior to your departure day. 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 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 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.

To see if there’s a direct route from BUF to LAS with Frontier Airlines or another airline, check the “Nonstop” filter when looking for flights.

Search Frontier Airlines’s earliest flights from BUF to LAS by using the “Morning” and “Early Morning” filters. Not only will you get to where you’re going 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.

Harry Reid Intl. Airport (LAS) is the primary Las Vegas gateway for Frontier Airlines flights from Buffalo Niagara Intl. Airport (BUF).

With a rewarding loyalty program, Frontier Airlines is a popular choice for many passengers heading from BUF to LAS. Plus, as a Frontier Miles and One Key™ member booking through Expedia, you can earn OneKeyCash™* on eligible flights on top of your airline miles.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Depending on the type of ticket you purchased, a fee may apply if you change or cancel your flight more than 24 hours after it has been confirmed. To secure tickets with more flexibility, select our “No cancel fee” or “Changes included” filter when looking for flights. To learn more about modifying or canceling your reservation, visit “Trips,” select your flight and tick “Manage Booking.”