$513 Cheap British Airways flights Baltimore (BWI) to Shannon (SNN)

View $513 flight on Wed, Oct 15, 2025Opens in a new window

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$513 Cheap British Airways flights Baltimore (BWI) to Shannon (SNN)

Prices were available within the past 7 days and start at $513 for one-way flights and $725 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

British Airways
Tue, Oct 21 - Tue, Oct 28
BWI
Baltimore
SNN
Shannon
$725 Roundtrip, found 1 day ago
$725
Roundtrip
found 1 day ago
Select British Airways flight, departing Tue, Oct 21 from Baltimore to Shannon, returning Tue, Oct 28, priced at $725 found 1 day ago
Flights from Baltimore (BWI) to Shannon (SNN)
Origin airport
Baltimore Washington Intl. Thurgood Marshall
Destination airport
Shannon
Airlines serving
Aer Lingus, Air France, American Airlines, British Airways, Delta, KLM, United
Popular airline
British Airways
Distance
3255 mi

Frequently asked questions

How much is a British Airways flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Shannon Airport (SNN)?
Finding cheap one-way British Airways flights from BWI to SNN from $513 on Expedia is simple — just filter by "Price (lowest to highest)." Or check out our budget-friendly return fares from $725 for your next break.**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.
What is the cheapest month to fly from BWI to SNN with British Airways?
Search for round-trip or one-way flights to Shannon in January or February. You could find an affordable fare with British Airways during these off-peak times.
What is the cheapest time to book flights from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Shannon Airport (SNN) with British Airways?
Getting the best British Airways deals from BWI to SNN often comes down to booking at the right moment. You can save 17% on international flights when you book 18 to 29 days before takeoff instead of four to five months ahead. Better yet, you can pocket 17% on average by buying your fare 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 want 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.
Does British Airways fly nonstop from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Shannon Airport (SNN)?
To figure out if there's a direct route from BWI to SNN with British Airways or other carriers, select the "Nonstop" filter when browsing for tickets.
What is the earliest British Airways flight from BWI to SNN?
To find the earliest departure from BWI to SNN with British Airways, filter your results by "Morning" and "Early Morning." Booking an early flight usually 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.
What airports does British Airways fly into in Shannon?
British Airways flights from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Shannon come in to Shannon Airport (SNN). This is the main entry point to this destination.
What kind of luggage can I take on a British Airways flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Shannon Airport (SNN)?
On a standard economy flight with British Airways from BWI to SNN, you can bring 1 checked-in bag up to 50 lb with dimensions not exceeding 29 inches x 15 inches x 16 inches in total. For hand luggage, you're allowed 2 cabin bags weighing up to 50 lb and measuring less than 19 inches x 9 inches x 17 inches. Size and weight limits can vary depending on your cabin class and fare type. To make sure you're not hit with additional charges at the terminal, check your British Airways booking or visit the airline's website before packing.
Why fly with British Airways from BWI to SNN?
Offering a 4-star airline rating and an excellent in-flight experience, British Airways is the leading choice for many travelers heading from BWI to SNN. Plus, if you're a British Airways Executive Club and One Key™ member booking with Expedia, you could earn OneKeyCash™* on eligible flights on top of your airline miles, which can be put toward future travel.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my British Airways flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Shannon Airport (SNN)?
Changes are often free within 24 hours of making your booking, but your airline may add a charge after that time. For further details about altering your reservation, head to your "Trips," select your flight and click on "Manage Booking." If you'd like the flexibility to adjust your plans without additional costs, check the "No cancel fee" or "Changes included" filter when planning your next trip.

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*Available to One Key members.