$129 Cheap Frontier Airlines flights Jacksonville (JAX) to Las Vegas (LAS)

Finding cheap one-way Frontier Airlines flights from JAX to LAS from $129 on Expedia couldn’t be easier — just filter by “Price (lowest to highest).” Or check out our affordable round-trip fares from $199 for your next getaway.**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 one-way or round-trip flights to Las Vegas in January or June. You could find a cheap fare with Frontier Airlines during these off-peak times.

Search for affordable Frontier Airlines flights from Jacksonville Intl. Airport (JAX) to Harry Reid Intl. Airport (LAS) one to three months ahead of your departure date. 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 best day to book a domestic flight is generally Sunday and the most expensive day 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 searching for direct Frontier Airlines flights from JAX to LAS. You’ll also be able to compare other airlines servicing the same nonstop journey.

Filter your results by “Early Morning” and “Morning” to find the earliest departures from JAX to LAS. Leaving early means flight cancellations are less likely.**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.

Frontier Airlines flights from Jacksonville Intl. Airport (JAX) to Las Vegas come in to Harry Reid Intl. Airport (LAS). This is the main gateway here.

A rewarding loyalty program and the opportunity to collect points through Frontier Miles are the start of the reasons to depart from JAX to LAS with Frontier Airlines. Plus, when you sign up to Expedia’s free One Key™ program, you can earn OneKeyCash™* alongside Frontier Airlines’s loyalty program earnings. It’s yours to use wherever your next trip takes you.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Changes are typically free within 24 hours of making a booking, but your airline may add a charge after that. For further information about modifying your reservation, head to your “Trips,” select your flight and click on “Manage Booking.” If you’d like the freedom to change your itinerary without additional charges, check the “Changes included” or “No cancel fee” filter when planning your trip.