$71 Cheap Spirit Airlines flights Las Vegas (LAS) to Boston (BOS)

You can find cheap round-trip Spirit Airlines flights from $165 from LAS to BOS by sorting your results from “Price (lowest to highest)” on Expedia. Or look for options from $71 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.

Look for one-way or round-trip flights to Boston in January or February. You could find cheaper fares with Spirit Airlines during these quieter months.

Start searching one to three months ahead of your departure date to find cheaper fares on Spirit Airlines flights from Harry Reid Intl. Airport (LAS) to Logan Intl. Airport (BOS). You can save 25% by booking your domestic flight 34 to 86 days in advance compared to 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.* Nail your timing, and you can enjoy significant savings on domestic trips.*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.

Simply enter your dates, hit search and select “Nonstop” on Expedia to browse any direct flights from LAS to BOS with Spirit Airlines or other airlines.

Browse Spirit Airlines’s earliest flights from LAS to BOS by checking our “Early Morning” and “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.

Catch a Spirit Airlines flight from Harry Reid Intl. Airport (LAS) to Boston, and you’re most likely to arrive at Logan Intl. Airport (BOS). This is the airline’s main hub in this destination.

With a rewarding loyalty program, Spirit Airlines is a favorite of many travelers departing from LAS to BOS. Plus, as a Free Spirit and One Key™ member booking through Expedia, you could earn OneKeyCash™* on eligible flights along with 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 fare you purchased, a fee will generally apply if you modify or cancel your flight more than 24 hours after it’s confirmed. To secure plane tickets with more flexibility, select our “Changes included” and “No cancel fee” boxes while searching for flights. To learn more about changing or canceling your reservation, visit “Trips,” select your flight and click on “Manage Booking.”