$816 Cheap Flights from Cardiff (CWL) to Baltimore (BWI)

View $816 flight on Tue, Dec 2, 2025Opens in a new window

Popular airlines from Cardiff International Airport (CWL) to Baltimore Washington Intl. Airport (BWI)

Cheap Flights from Cardiff to Baltimore (CWL-BWI)

Prices were available within the past 7 days and start at $816 for one-way flights and $1,408 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Aer Lingus
Fri, Nov 21 - Fri, Nov 28
CWL
Cardiff
BWI
Baltimore
$1,408 Roundtrip, found 4 days ago
$1,408
Roundtrip
found 4 days ago
Select Aer Lingus flight, departing Fri, Nov 21 from Cardiff to Baltimore, returning Fri, Nov 28, priced at $1,408 found 4 days ago
Aer Lingus
Fri, Nov 21 - Fri, Nov 28
CWL
Cardiff
BWI
Baltimore
$1,417 Roundtrip, found 4 days ago
$1,417
Roundtrip
found 4 days ago
Select Aer Lingus flight, departing Fri, Nov 21 from Cardiff to Baltimore, returning Fri, Nov 28, priced at $1,417 found 4 days ago
British Airways
Mon, Nov 3 - Mon, Nov 10
CWL
Cardiff
BWI
Baltimore
$1,419 Roundtrip, found 6 days ago
$1,419
Roundtrip
found 6 days ago
Select British Airways flight, departing Mon, Nov 3 from Cardiff to Baltimore, returning Mon, Nov 10, priced at $1,419 found 6 days ago
Aer Lingus
Fri, Nov 21 - Fri, Nov 28
CWL
Cardiff
BWI
Baltimore
$1,421 Roundtrip, found 4 days ago
$1,421
Roundtrip
found 4 days ago
Select Aer Lingus flight, departing Fri, Nov 21 from Cardiff to Baltimore, returning Fri, Nov 28, priced at $1,421 found 4 days ago
British Airways
Fri, Nov 21 - Fri, Nov 28
CWL
Cardiff
BWI
Baltimore
$1,421 Roundtrip, found 4 days ago
$1,421
Roundtrip
found 4 days ago
Select British Airways flight, departing Fri, Nov 21 from Cardiff to Baltimore, returning Fri, Nov 28, priced at $1,421 found 4 days ago
British Airways
Fri, Nov 21 - Fri, Nov 28
CWL
Cardiff
BWI
Baltimore
$1,425 Roundtrip, found 4 days ago
$1,425
Roundtrip
found 4 days ago
Select British Airways flight, departing Fri, Nov 21 from Cardiff to Baltimore, returning Fri, Nov 28, priced at $1,425 found 4 days ago
Aer Lingus
Fri, Nov 21 - Fri, Nov 28
CWL
Cardiff
BWI
Baltimore
$1,427 Roundtrip, found 4 days ago
$1,427
Roundtrip
found 4 days ago
Select Aer Lingus flight, departing Fri, Nov 21 from Cardiff to Baltimore, returning Fri, Nov 28, priced at $1,427 found 4 days ago
British Airways
Mon, Nov 3 - Mon, Nov 10
CWL
Cardiff
BWI
Baltimore
$1,432 Roundtrip, found 6 days ago
$1,432
Roundtrip
found 6 days ago
Select British Airways flight, departing Mon, Nov 3 from Cardiff to Baltimore, returning Mon, Nov 10, priced at $1,432 found 6 days ago
Aer Lingus
Fri, Nov 21 - Fri, Nov 28
CWL
Cardiff
BWI
Baltimore
$1,434 Roundtrip, found 4 days ago
$1,434
Roundtrip
found 4 days ago
Select Aer Lingus flight, departing Fri, Nov 21 from Cardiff to Baltimore, returning Fri, Nov 28, priced at $1,434 found 4 days ago
Aer Lingus
Fri, Nov 21 - Fri, Nov 28
CWL
Cardiff
BWI
Baltimore
$1,439 Roundtrip, found 4 days ago
$1,439
Roundtrip
found 4 days ago
Select Aer Lingus flight, departing Fri, Nov 21 from Cardiff to Baltimore, returning Fri, Nov 28, priced at $1,439 found 4 days ago

Frequently asked questions

How much does a flight from Cardiff Intl. Airport (CWL) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI) cost?
Get a cheap one-way flight from $816 or cheap return flight from $1,408 from Cardiff Intl. Airport (CWL) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Cardiff Intl. Airport (CWL) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
The cheapest month to fly from CWL to BWI is November, when there's less demand. Off-peak months are generally when better flight deals are available between these airports.
What is the cheapest airline that flies from Cardiff Intl. Airport (CWL) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
Expedia's filter tool lets you easily compare different airlines, flight durations and fares all in one place. Customize the search to your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest CWL to BWI flight.
How many flights per day from Cardiff Intl. Airport (CWL) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
You'll need to book a flight with a layover if you're traveling from Cardiff Intl. Airport (CWL) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI). 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 CWL to BWI?
Friday is typically the busiest day for flights, while Tuesday is often the quietest.* Remember that flight schedules can vary depending on various factors, including the time of year and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Cardiff Intl. Airport (CWL) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
To reach Baltimore Washington Intl. Thurgood Marshall Airport (BWI) on schedule, book a flight that takes off from Cardiff Intl. Airport (CWL) 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 Cardiff Intl. Airport (CWL) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI) last-minute?
Last-minute fares from CWL to BWI are generally more expensive. For the best rates, start searching for flights as soon as possible. That being said, if your travel plans are flexible, you may land a cheap ticket right before your journey.
Is it cheaper to book a CWL to BWI flight and hotel package?
Opting for a CWL to BWI flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip all in one place. Choose from our wide range of accommodations and then add activities, car rentals and flights to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Cardiff Intl. Airport (CWL) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
If you reserved your CWL to BWI flight within the last 24 hours, you may be able to modify or cancel it at no cost. Depending on the airline and the fare type you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for further details.

Travel information

Origin airport
Cardiff Intl.
Destination airport
Baltimore Washington Intl. Thurgood Marshall
Roundtrip price
$1,408
Distance
3507 mi

Book with confidence

Cardiff to Baltimore Flights

The cheapest times to fly from Cardiff 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 Cardiff to Baltimore are during the month of November. You can find some of the cheapest flights from Cardiff to Baltimore with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Cardiff to Baltimore

Sunday is one of the best days to book for cheap flights from Cardiff 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 Cardiff 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 Cardiff to Baltimore in 2025. You can also book with separate airlines for your outbound and return journeys, from $816 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 Cardiff 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 Cardiff 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.

 

Cardiff to Baltimore Flights

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*Available to One Key members.