$79 Cheap Spirit Airlines flights Houston (IAH) to San Juan (SJU)

Use the "Price (lowest to highest)" filter on Expedia to look for cheap Spirit Airlines return flights from $170 from IAH to SJU. Affordable one-way options from $79 are also available.**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.

Getting the best Spirit Airlines deals from IAH to SJU often comes down to booking at the right time. You can save 17% on international flights when you book 18 to 29 days before takeoff instead of four to five months ahead. As an added bonus, you can pocket 17% on average by buying your tickets on a Sunday compared to a Friday, which is often the most expensive day to book.* It's a good idea to start checking out flights about one month before you plan to travel.*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.

Jetting off from IAH at 9:32AM UTC-6, the earliest Spirit Airlines flight to SJU arrives at 3:58PM UTC-4. Flying early means you're less likely to experience cancellations.* Prefer a later start? The last Spirit Airlines flight from IAH to SJU departs at 9:32AM UTC-6 and touches down at 3:58PM UTC-4.*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.

A rewarding loyalty program and the chance to rack up points through Free Spirit are the start of the reasons to jet off from IAH to SJU with Spirit Airlines. Plus, when you sign up to our One Key™ program, you can receive 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.