$528 Cheap British Airways flights Philadelphia (PHL) to Shannon (SNN)

You’ll find affordable round-trip British Airways flights from $861 from PHL to SNN by filtering your results from “Price (lowest to highest)” on Expedia. Or look for bargains from $528 for a one-way trip.**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.

Look for return or one-way flights to Shannon in January or February. You could find an affordable fare with British Airways during these off-peak months.

Look for British Airways flights from PHL to SNN about one month before you want to go. The most affordable time to reserve 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. Regardless of ticket type or itinerary, the best day 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.

Click on the “Nonstop” filter when browsing for direct British Airways flights from PHL to SNN. It’s also a great way to compare other carriers offering the same nonstop route.

Search British Airways’s earliest flights from PHL to SNN by selecting our “Morning” and “Early Morning” filters. Not only will you get to your destination 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.

Board a British Airways flight from Philadelphia Intl. Airport (PHL) to Shannon, and you’ll probably come in to Shannon Airport (SNN). This is the airline’s primary hub here.

For checked luggage, passengers can take 1 checked-in bag weighing up to 50 lb with dimensions not exceeding 29 inches x 15 inches x 16 inches. You can also travel with 2 cabin bags in the cabin when flying standard economy from PHL to SNN with British Airways. This carry-on should weigh less than 50 lb and be no larger than 19 inches x 9 inches x 17 inches. Going over these restrictions can mean extra fees, so read British Airways’s baggage allowance guidelines before packing your suitcase.

Jetting off from PHL to SNN with British Airways comes with a host of benefits, including an excellent in-flight experience and top-tier customer service. Plus, when you book through Expedia, One Key™ members can earn OneKeyCash™* to spend on select future travel purchases. That’s on top of the British Airways Executive Club points you can earn with British Airways.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Depending on the type of ticket you purchased, a fee will generally apply if you cancel or reschedule your flight more than 24 hours after it’s confirmed. To find plane tickets with more flexibility, select our “Changes included” and “No cancel fee” boxes when you look for flights. For more details on canceling or modifying your reservation, go to “Trips,” select your flight and tick “Manage Booking.”