$606 Cheap Flights from Baltimore (BWI) to Londonderry (LDY)

View $606 flight on Wed, Mar 18, 2026Opens in a new window

Popular airlines from Baltimore Washington Intl. Airport (BWI) to Londonderry (LDY-City of Derry)

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Cheap Flights from Baltimore to Londonderry (BWI-LDY)

Prices were available within the past 7 days and start at $606 for one-way flights and $946 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

British Airways
Fri, Feb 6 - Mon, Feb 9
BWI
Baltimore
LDY
Londonderry
$946 Roundtrip, found 1 hour ago
$946
Roundtrip
found 1 hour ago
Select British Airways flight, departing Fri, Feb 6 from Baltimore to Londonderry, returning Mon, Feb 9, priced at $946 found 1 hour ago
Icelandair
Wed, Mar 18 - Sun, Mar 22
BWI
Baltimore
LDY
Londonderry
$970 Roundtrip, found 3 days ago
$970
Roundtrip
found 3 days ago
Select Icelandair flight, departing Wed, Mar 18 from Baltimore to Londonderry, returning Sun, Mar 22, priced at $970 found 3 days ago
British Airways
Sun, Nov 2 - Thu, Nov 6
BWI
Baltimore
LDY
Londonderry
$1,243 Roundtrip, found 6 days ago
$1,243
Roundtrip
found 6 days ago
Select British Airways flight, departing Sun, Nov 2 from Baltimore to Londonderry, returning Thu, Nov 6, priced at $1,243 found 6 days ago
British Airways
Sun, Nov 2 - Thu, Nov 6
BWI
Baltimore
LDY
Londonderry
$1,271 Roundtrip, found 6 days ago
$1,271
Roundtrip
found 6 days ago
Select British Airways flight, departing Sun, Nov 2 from Baltimore to Londonderry, returning Thu, Nov 6, priced at $1,271 found 6 days ago
British Airways
Wed, Mar 18 - Sun, Mar 22
BWI
Baltimore
LDY
Londonderry
$1,324 Roundtrip, found 3 days ago
$1,324
Roundtrip
found 3 days ago
Select British Airways flight, departing Wed, Mar 18 from Baltimore to Londonderry, returning Sun, Mar 22, priced at $1,324 found 3 days ago
British Airways
Wed, Mar 18 - Sun, Mar 22
BWI
Baltimore
LDY
Londonderry
$1,400 Roundtrip, found 3 days ago
$1,400
Roundtrip
found 3 days ago
Select British Airways flight, departing Wed, Mar 18 from Baltimore to Londonderry, returning Sun, Mar 22, priced at $1,400 found 3 days ago
British Airways
Sun, Nov 2 - Thu, Nov 6
BWI
Baltimore
LDY
Londonderry
$1,429 Roundtrip, found 6 days ago
$1,429
Roundtrip
found 6 days ago
Select British Airways flight, departing Sun, Nov 2 from Baltimore to Londonderry, returning Thu, Nov 6, priced at $1,429 found 6 days ago
Icelandair
Wed, Mar 18 - Sun, Mar 22
BWI
Baltimore
LDY
Londonderry
$1,482 Roundtrip, found 3 days ago
$1,482
Roundtrip
found 3 days ago
Select Icelandair flight, departing Wed, Mar 18 from Baltimore to Londonderry, returning Sun, Mar 22, priced at $1,482 found 3 days ago
Icelandair
Sat, Jun 20 - Sat, Jun 27
BWI
Baltimore
LDY
Londonderry
$1,500 Roundtrip, found 4 days ago
$1,500
Roundtrip
found 4 days ago
Select Icelandair flight, departing Sat, Jun 20 from Baltimore to Londonderry, returning Sat, Jun 27, priced at $1,500 found 4 days ago
American Airlines
Sat, Jun 20 - Sat, Jun 27
BWI
Baltimore
LDY
Londonderry
$2,099 Roundtrip, found 4 days ago
$2,099
Roundtrip
found 4 days ago
Select American Airlines flight, departing Sat, Jun 20 from Baltimore to Londonderry, returning Sat, Jun 27, priced at $2,099 found 4 days ago

Frequently asked questions

How much does a flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to City of Derry Airport (LDY) cost?
Lock in a cheap one-way flight from $606 or cheap return flight from $946 from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to City of Derry Airport (LDY) 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 Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to City of Derry Airport (LDY)?
Planning your trip for February is a good way to save, as it's the cheapest month for flights between BWI and LDY. You'll typically find the lowest fares during off-peak months.
What is the cheapest airline that flies from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to City of Derry Airport (LDY)?
Expedia's filter tool lets you easily compare different airlines, flight durations and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to find the carrier with the cheapest BWI to LDY flight.
How many flights per day from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to City of Derry Airport (LDY)?
Nonstop flights from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to City of Derry Airport (LDY) aren't available daily, so you'll have to take a flight with a layover. Explore your options with our filter tool. Enter your travel details and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from BWI to LDY?
Friday is usually the busiest day for flights, while Tuesday tends to be the quietest.* Remember that flight schedules can vary based on various factors, such as the airline and season.*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 City of Derry Airport (LDY)?
To avoid possible delays on the Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to City of Derry Airport (LDY) route, fly before 3 PM. Later departures have a 22% higher chance of cancellation.**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 City of Derry Airport (LDY) last-minute?
Holding off until just before your trip to book a flight from BWI to LDY generally means paying more. While you may come across some last-minute deals, they aren't always guaranteed. Keep your travel schedule open for the best chance of getting a bargain.
Is it cheaper to book a BWI to LDY flight and hotel package?
Booking a BWI to LDY flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels in one place. Choose from our extensive range of hotels and then add car rentals, activities 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 City of Derry Airport (LDY)?
If you reserved your BWI to LDY flight in the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the ticket type you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you want more information.

Travel information

Origin airport
Baltimore Washington Intl. Thurgood Marshall
Destination airport
City of Derry
Roundtrip price
$946
Distance
3294 mi

Book with confidence

Baltimore to Londonderry Flights

The cheapest times to fly from Baltimore to Londonderry

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

 

The best time to book a flight from Baltimore to Londonderry

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

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 Londonderry in 2025. You can also book with separate airlines for your outbound and return journeys, from $606 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 Londonderry 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 Londonderry 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.

 

Baltimore to Londonderry Flights

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