$91 Cheap Spirit Airlines flights Los Angeles (LAX) to Boston (BOS)

Landing cheap one-way Spirit Airlines flights from LAX to BOS from $91 on Expedia is simple — just filter by “Price (lowest to highest).” Or check out our budget-friendly round-trip fares from $189 for your next exciting 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 return or one-way flights to Boston in January or February. You could find an affordable fare with Spirit Airlines during these off-peak times.

Search for affordable Spirit Airlines flights from Los Angeles Intl. Airport (LAX) to Logan Intl. Airport (BOS) 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. Regardless of fare class 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 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.

Fill in your dates, click search and tick the “Nonstop” filter on Expedia to browse any direct flights from LAX to BOS with Spirit Airlines or another carrier.

Sort your results by “Early Morning” and “Morning” to see the earliest flights from LAX to BOS. Taking off early 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 Spirit Airlines flight from Los Angeles Intl. Airport (LAX) to Boston, and you’ll most likely touch down at Logan Intl. Airport (BOS). This is the airline’s primary hub in this destination.

A rewarding loyalty program and the opportunity to collect points through Free Spirit are the start of the reasons to fly from LAX to BOS with Spirit Airlines. Plus, by joining Expedia’s free One Key™ program, you can earn OneKeyCash™* alongside Spirit Airlines’s loyalty program earnings. You can put it toward your future trips.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Changes are usually free within 24 hours of making your booking, but your airline may charge a fee after that. For more details about modifying your reservation, head to your “Trips,” select your flight and click on “Manage Booking.” If you want the freedom to change your plans without being charged, check the “Changes included” and “No cancel fee” filters when organizing your next adventure.