$144 Cheap Spirit Airlines flights Cancun (CUN) to San Diego (SAN)

Set the "Price (lowest to highest)" filter on Expedia to find cheap Spirit Airlines return flights from $309 from CUN to SAN. Affordable one-way tickets from $144 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.

Start your search for Spirit Airlines flights from CUN to SAN about one month before you want to go. The cheapest time to book an international flight is generally 18 to 29 days ahead of your departure date when you can save 17% versus booking four to five months in advance. No matter your itinerary or fare class, the best day to book international airfare is usually Sunday. Friday is often the most expensive. Travelers booking on a Sunday can save an average of 17% compared to those who book on a Friday.**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.

Filter your results by "Early Morning" and "Morning" to find the earliest flights from CUN to SAN. Jetting 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.

Journey from CUN to SAN with Spirit Airlines and you'll enjoy a host of benefits including a rewarding loyalty program. When you book through Expedia as a Free Spirit and One Key™ member, you could also earn OneKeyCash™* to use on select future travel purchases.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.