$131 Cheap Frontier Airlines flights Boston (BOS) to Las Vegas (LAS)

Set the “Price (lowest to highest)” filter on Expedia to look for cheap Frontier Airlines round-trip flights from $204 from BOS to LAS. Affordable one-way options from $131 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 travel to Las Vegas with Frontier Airlines. You could also find fantastic deals on return and one-way fares in June.

Begin your search one to three months before your departure to get cheaper fares on Frontier Airlines flights from Logan Intl. Airport (BOS) to Harry Reid Intl. Airport (LAS). You can save 25% by booking your domestic flight 34 to 86 days in advance versus last-minute reservations made 6 to 12 days out. You could also cut costs by buying your fare on a Sunday, as it’s 6% cheaper on average than a Monday, the most expensive day to book.* Time it well, and you can enjoy significant savings on domestic flights.*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.

Fill in your dates, press search and select the “Nonstop” filter on Expedia to browse any direct flights from BOS to LAS with Frontier Airlines or another airline.

Browse Frontier Airlines’s earliest flights from BOS to LAS by using the “Early Morning” and “Morning” filters. Not only will you arrive at your destination 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 Logan Intl. Airport (BOS).

A rewarding loyalty program and the ability to collect points through Frontier Miles are the start of the reasons to fly from BOS 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 travel plans.*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 generally applies if you cancel or reschedule your booking more than 24 hours after it has been confirmed. To find flexible plane tickets, select our “Changes included” or “No cancel fee” filter when you look for flights. To learn more about canceling or modifying your reservation, head to “Trips,” select your flight and click on “Manage Booking.”