$51 Cheap Spirit Airlines flights Boston (BOS) to Houston (IAH)

You can discover cheap return Spirit Airlines flights from $135 from BOS to IAH by organizing your results from “Price (lowest to highest)” on Expedia. Or look for bargains from $51 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.

Spirit Airlines flights to Houston are generally cheaper in the low-season months of November and February. Whether you’re after a one-way or round-trip ticket, you could land a better deal then.

Search for affordable Spirit Airlines flights from Logan Intl. Airport (BOS) to George Bush Intercontinental Airport (IAH) one to three months prior to your day of departure. 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 class and journey, the best day of the week to book a domestic flight is generally 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.

To figure out if there’s a direct route from BOS to IAH with Spirit Airlines or any other carriers, use our “Nonstop” filter when looking for flights.

Filter your results by “Early Morning” and “Morning” to browse the earliest flights from BOS to IAH. Setting 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.

Board a Spirit Airlines flight from Logan Intl. Airport (BOS) to Houston, and you’re most likely to come in to George Bush Intercontinental Airport (IAH). This is the airline’s primary hub here.

A rewarding loyalty program and the ability to collect points through Free Spirit are the start of the reasons to leave from BOS to IAH with Spirit Airlines. Plus, when you sign up to Expedia’s free One Key™ program, you can earn OneKeyCash™* alongside Spirit Airlines’s loyalty program earnings. It’s yours to spend on future bookings.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Changes are often free within 24 hours of making your booking, but your airline may add a charge after that. For more information about modifying your flights, go to your “Trips,” select your flight and click on “Manage Booking.” If you’d like the flexibility to change your itinerary without additional costs, apply the “Changes included” and “No cancel fee” filters when organizing your next getaway.