$101 Cheap Frontier Airlines flights Philadelphia (PHL) to Las Vegas (LAS)

Use the “Price (lowest to highest)” filter on Expedia to search for cheap Frontier Airlines return flights from $149 from PHL to LAS. Affordable one-way fares from $101 are also on offer.**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.

January is one of the least expensive months to jet off to Las Vegas with Frontier Airlines. You could also find excellent prices on return and one-way tickets in June.

For cheap Frontier Airlines fares from Philadelphia Intl. Airport (PHL) 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 impact the cost. Sunday tends to be the most affordable, 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.

Use our “Nonstop” filter when browsing for direct Frontier Airlines flights from PHL to LAS. You’ll also be able to compare other airlines offering the same nonstop journey.

To find the earliest departure from PHL to LAS with Frontier Airlines, sort your results by “Early Morning” and “Morning.” Choosing an early flight generally means you’re 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.

Hop on a Frontier Airlines flight from Philadelphia Intl. Airport (PHL) to Las Vegas, and you’ll likely come in to Harry Reid Intl. Airport (LAS). This is the airline’s main hub in this destination.

A rewarding loyalty program and the opportunity to collect points through Frontier Miles are the start of the reasons to fly from PHL to LAS with Frontier Airlines. Plus, when you join Expedia’s free One Key™ program, you can earn OneKeyCash™* in addition to Frontier Airlines’s loyalty program earnings. It’s yours to spend on future travel plans.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Depending on your fare type, a fee generally applies if you change or cancel your booking more than 24 hours after it has been confirmed. To secure plane tickets with more flexibility, select our “No cancel fee” or “Changes included” filter when looking for flights. For more information on canceling or modifying your reservation, go to “Trips,” select your flight and click on “Manage Booking.”