$141 Cheap American Airlines flights Boston (BOS) to Cancun (CUN)

Make use of the "Price (lowest to highest)" filter on Expedia to find cheap American Airlines round-trip flights from $282 from BOS to CUN. Affordable one-way fares from $141 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.

Check for American Airlines flights from BOS to CUN about one month before you want to go. The most affordable 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 ticket type or itinerary, the best day of the week to book international airfare is usually Sunday. Friday can be the most expensive. Travelers who book 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.

The earliest American Airlines flight from BOS to CUN takes off at 8:45AM UTC-5, touching down at 1:50PM UTC-5. If you prefer to set off later, the last American Airlines flight leaves BOS at 8:45AM UTC-5 and lands at CUN at 1:50PM UTC-5. Flying before noon is generally a smart choice as morning and mid-morning flights are 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.