$686 Cheap Flights from Shannon (SNN) to Baltimore (BWI)

View $686 flight on Fri, Nov 21, 2025Opens in a new window

Popular airlines from Shannon Airport (SNN) to Baltimore Washington Intl. Airport (BWI)

Cheap Flights from Shannon to Baltimore (SNN-BWI)

Prices were available within the past 7 days and start at $686 for one-way flights and $587 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Aer Lingus
Wed, Nov 12 - Sun, Nov 16
SNN
Shannon
BWI
Baltimore
$587 Roundtrip, found 2 days ago
$587
Roundtrip
found 2 days ago
Select Aer Lingus flight, departing Wed, Nov 12 from Shannon to Baltimore, returning Sun, Nov 16, priced at $587 found 2 days ago
British Airways
Wed, Nov 12 - Sun, Nov 16
SNN
Shannon
BWI
Baltimore
$590 Roundtrip, found 2 days ago
$590
Roundtrip
found 2 days ago
Select British Airways flight, departing Wed, Nov 12 from Shannon to Baltimore, returning Sun, Nov 16, priced at $590 found 2 days ago
Aer Lingus
Wed, Nov 12 - Sun, Nov 16
SNN
Shannon
BWI
Baltimore
$622 Roundtrip, found 2 days ago
$622
Roundtrip
found 2 days ago
Select Aer Lingus flight, departing Wed, Nov 12 from Shannon to Baltimore, returning Sun, Nov 16, priced at $622 found 2 days ago
Aer Lingus
Wed, Oct 15 - Wed, Oct 22
SNN
Shannon
BWI
Baltimore
$647 Roundtrip, found 3 days ago
$647
Roundtrip
found 3 days ago
Select Aer Lingus flight, departing Wed, Oct 15 from Shannon to Baltimore, returning Wed, Oct 22, priced at $647 found 3 days ago
Aer Lingus
Tue, Oct 14 - Tue, Oct 21
SNN
Shannon
BWI
Baltimore
$652 Roundtrip, found 4 days ago
$652
Roundtrip
found 4 days ago
Select Aer Lingus flight, departing Tue, Oct 14 from Shannon to Baltimore, returning Tue, Oct 21, priced at $652 found 4 days ago
Aer Lingus
Wed, Nov 12 - Sun, Nov 16
SNN
Shannon
BWI
Baltimore
$658 Roundtrip, found 2 days ago
$658
Roundtrip
found 2 days ago
Select Aer Lingus flight, departing Wed, Nov 12 from Shannon to Baltimore, returning Sun, Nov 16, priced at $658 found 2 days ago
British Airways
Tue, Oct 14 - Tue, Oct 21
SNN
Shannon
BWI
Baltimore
$664 Roundtrip, found 4 days ago
$664
Roundtrip
found 4 days ago
Select British Airways flight, departing Tue, Oct 14 from Shannon to Baltimore, returning Tue, Oct 21, priced at $664 found 4 days ago
British Airways
Wed, Oct 15 - Wed, Oct 22
SNN
Shannon
BWI
Baltimore
$672 Roundtrip, found 3 days ago
$672
Roundtrip
found 3 days ago
Select British Airways flight, departing Wed, Oct 15 from Shannon to Baltimore, returning Wed, Oct 22, priced at $672 found 3 days ago
Aer Lingus
Tue, Oct 14 - Tue, Oct 21
SNN
Shannon
BWI
Baltimore
$680 Roundtrip, found 4 days ago
$680
Roundtrip
found 4 days ago
Select Aer Lingus flight, departing Tue, Oct 14 from Shannon to Baltimore, returning Tue, Oct 21, priced at $680 found 4 days ago
American Airlines
Mon, Nov 24 - Mon, Dec 1
SNN
Shannon
BWI
Baltimore
$817 Roundtrip, found 2 days ago
$817
Roundtrip
found 2 days ago
Select American Airlines flight, departing Mon, Nov 24 from Shannon to Baltimore, returning Mon, Dec 1, priced at $817 found 2 days ago

Alternative airports near Baltimore

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Ronald Reagan Washington National DCA. Cheapest option available. Average driving time to city center is 57 minutes. Flights from $490
DCA
Ronald Reagan Washington National
Cheapest
Average driving time to city center57 min
Flights from $490
Flights from Shannon (SNN) to Baltimore (BWI)
Origin airport
Shannon
Destination airport
Baltimore Washington Intl. Thurgood Marshall
Airlines serving
Aer Lingus, British Airways
Roundtrip price
$586
Distance
3255 mi

Shannon to Baltimore Flights

The cheapest times to fly from Shannon to Baltimore

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Shannon to Baltimore are during the month of November. You can find some of the cheapest flights from Shannon to Baltimore with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Shannon to Baltimore

Sunday is one of the best days to book for cheap flights from Shannon to Baltimore: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Shannon to Baltimore

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Shannon to Baltimore in 2025. You can also book with separate airlines for your outbound and return journeys, from $686 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Shannon to Baltimore flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Shannon to Baltimore airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Shannon Airport (SNN) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI) cost?
Get a cheap one-way flight from $686 or cheap return flight from $587 from Shannon Airport (SNN) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Shannon Airport (SNN) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
Planning your getaway for November is a good way to save, as it's the cheapest month for flights between SNN and BWI. You'll typically find the lowest prices during off-peak months.
What is the cheapest airline that flies from Shannon Airport (SNN) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
To find the cheapest airline that'll fly you from SNN to BWI, use Expedia's filter tool. Tailor your search based on your travel needs, such as preferred carriers and flight duration. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from Shannon Airport (SNN) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
You'll need to hop on a flight with a layover if you're traveling from Shannon Airport (SNN) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI). There are no daily direct flights on this route. However, simply filter your search to include one or two stops to find the best option for your trip.
What day of the week has the most flights from SNN to BWI?
Typically you'll find the greatest selection of flight options on a Friday. Tuesdays are often the quietest.* However, this can vary depending on the season, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Shannon Airport (SNN) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
To arrive at Baltimore Washington Intl. Thurgood Marshall Airport (BWI) on time, pick a flight that leaves from Shannon Airport (SNN) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Shannon Airport (SNN) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI) last-minute?
Last-minute bookings from SNN to BWI are typically more expensive. For the best rates, start looking for flights ahead of time. That said, if you can play around with your travel dates, it's possible to find a cheap ticket just before your departure.
Is it cheaper to book a SNN to BWI flight and hotel package?
Securing a SNN to BWI flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip in one place. Pick from our wide range of stays and then add car rentals, flights and activities to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Shannon Airport (SNN) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
If you reserved your SNN to BWI flight in the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the type of ticket you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal if you want more information.

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*Available to One Key members.