$531 Cheap American Airlines flights Baltimore (BWI) to Shannon (SNN)

Apply the "Price (lowest to highest)" filter on Expedia to find cheap American Airlines return flights from $685 from BWI to SNN. Affordable one-way options from $531 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.

To find affordable flights from BWI to SNN with American Airlines, start searching about one month before your planned departure. You can save 17% when you book your international tickets 18 to 29 days ahead instead of booking four to five months in advance. Another helpful tip? Booking on Sunday can lead to average savings of 17% compared to Friday (the most expensive day).**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.

Search American Airlines's earliest flights from BWI to SNN by selecting the "Early Morning" and "Morning" filters. Not only will you get to where you're going sooner, early departures also experience 20% fewer 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.