$380 Cheap Flights from Baltimore (BWI) to Belfast (BFS)

View $380 flight on Mon, Oct 20, 2025Opens in a new window

Popular airlines from Baltimore Washington Intl. Airport (BWI) to Belfast International Airport (BFS)

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Cheap Flights from Baltimore to Belfast (BWI-BFS)

Prices were available within the past 7 days and start at $380 for one-way flights and $630 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

British Airways
Thu, Sep 11 - Mon, Sep 15
BWI
Baltimore
BHD
Belfast
$630 Roundtrip, found 5 days ago
$630
Roundtrip
found 5 days ago
Select British Airways flight, departing Thu, Sep 11 from Baltimore to Belfast, returning Mon, Sep 15, priced at $630 found 5 days ago
American Airlines
Tue, Oct 14 - Tue, Oct 21
BWI
Baltimore
BHD
Belfast
$631 Roundtrip, found 2 days ago
$631
Roundtrip
found 2 days ago
Select American Airlines flight, departing Tue, Oct 14 from Baltimore to Belfast, returning Tue, Oct 21, priced at $631 found 2 days ago
American Airlines
Fri, Oct 17 - Fri, Oct 24
BWI
Baltimore
BHD
Belfast
$633 Roundtrip, just found
$633
Roundtrip
just found
Select American Airlines flight, departing Fri, Oct 17 from Baltimore to Belfast, returning Fri, Oct 24, priced at $633 just found
British Airways
Sun, Aug 17 - Tue, Aug 26
BWI
Baltimore
BHD
Belfast
$633 Roundtrip, found 1 day ago
$633
Roundtrip
found 1 day ago
Select British Airways flight, departing Sun, Aug 17 from Baltimore to Belfast, returning Tue, Aug 26, priced at $633 found 1 day ago
British Airways
Fri, Oct 17 - Fri, Oct 24
BWI
Baltimore
BHD
Belfast
$635 Roundtrip, just found
$635
Roundtrip
just found
Select British Airways flight, departing Fri, Oct 17 from Baltimore to Belfast, returning Fri, Oct 24, priced at $635 just found
British Airways
Thu, Sep 11 - Tue, Sep 16
BWI
Baltimore
BHD
Belfast
$635 Roundtrip, found 4 days ago
$635
Roundtrip
found 4 days ago
Select British Airways flight, departing Thu, Sep 11 from Baltimore to Belfast, returning Tue, Sep 16, priced at $635 found 4 days ago
American Airlines
Fri, Oct 17 - Fri, Oct 24
BWI
Baltimore
BHD
Belfast
$637 Roundtrip, just found
$637
Roundtrip
just found
Select American Airlines flight, departing Fri, Oct 17 from Baltimore to Belfast, returning Fri, Oct 24, priced at $637 just found
Virgin Atlantic
Tue, Aug 5 - Tue, Aug 19
BWI
Baltimore
BHD
Belfast
$720 Roundtrip, found 5 days ago
$720
Roundtrip
found 5 days ago
Select Virgin Atlantic flight, departing Tue, Aug 5 from Baltimore to Belfast, returning Tue, Aug 19, priced at $720 found 5 days ago
Delta
Fri, Dec 5 - Tue, Dec 16
BWI
Baltimore
BHD
Belfast
$725 Roundtrip, found 1 day ago
$725
Roundtrip
found 1 day ago
Select Delta flight, departing Fri, Dec 5 from Baltimore to Belfast, returning Tue, Dec 16, priced at $725 found 1 day ago
Iberia
Fri, Oct 17 - Fri, Oct 24
BWI
Baltimore
BHD
Belfast
$978 Roundtrip, just found
$978
Roundtrip
just found
Select Iberia flight, departing Fri, Oct 17 from Baltimore to Belfast, returning Fri, Oct 24, priced at $978 just found
Flights from Baltimore (BWI) to Belfast (BHD)
Origin airport
Baltimore Washington Intl. Thurgood Marshall
Destination airport
George Best Belfast City
Roundtrip price
$630
Distance
3350 mi

Baltimore to Belfast Flights

The cheapest times to fly from Baltimore to Belfast

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 Baltimore to Belfast are during the month of September. You can find some of the cheapest flights from Baltimore to Belfast with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Baltimore to Belfast

Sunday is one of the best days to book for cheap flights from Baltimore to Belfast: 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 Baltimore to Belfast

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 Baltimore to Belfast in 2025. You can also book with separate airlines for your outbound and return journeys, from $380 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 Baltimore to Belfast 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 Baltimore to Belfast 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 Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Belfast Intl. Airport (BFS) cost?
Discover the latest flight deals from BWI to BFS by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from BWI to BFS?
The cheapest flights from BWI to BFS are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from BWI to BFS?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from BWI to BFS. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Belfast Intl. Airport (BFS)?
You'll need to catch a flight with a layover when traveling from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Belfast Intl. Airport (BFS). Direct flights don't operate daily on this route. However, simply filter your search to include one or two stops to find an option that works for you.
What day of the week has the most flights from BWI to BFS?
You'll usually find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Belfast Intl. Airport (BFS)?
Choose a flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Belfast Intl. Airport (BFS) that leaves before 3 PM to reduce the risk of cancellations. Departures later than this have a 22% higher chance of being canceled, on average.**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 Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Belfast Intl. Airport (BFS) last-minute?
Holding off until just before your departure to book a ticket from BWI to BFS generally means paying more. While it's possible to find some last-minute offers, they're not always guaranteed. Keep your travel plans flexible to maximize your chances of getting a bargain.
Is it cheaper to book a BWI to BFS flight and hotel package?
Opting for a BWI to BFS flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Choose from our impressive range of stays and then add activities, car rentals and flights 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 Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Belfast Intl. Airport (BFS)?
Generally, it's possible to cancel or reschedule your BWI to BFS flight. However, if the booking was made more than 24 hours ago, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find more details on our Customer Service portal.

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*Available to One Key members.