$476 Cheap Flights from Baltimore (BWI) to Cardiff (CWL)

View $476 flight on Thu, Dec 11, 2025Opens in a new window

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

Cheap Flights from Baltimore to Cardiff (BWI-CWL)

Prices were available within the past 7 days and start at $476 for one-way flights and $789 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed, Nov 5 - Thu, Dec 18
BWI
Baltimore
CWL
Cardiff
$789 Roundtrip, found 5 days ago
$789
Roundtrip
found 5 days ago
Select Delta flight, departing Wed, Nov 5 from Baltimore to Cardiff, returning Thu, Dec 18, priced at $789 found 5 days ago
Virgin Atlantic
Sat, Nov 8 - Thu, Dec 18
BWI
Baltimore
CWL
Cardiff
$789 Roundtrip, found 5 days ago
$789
Roundtrip
found 5 days ago
Select Virgin Atlantic flight, departing Sat, Nov 8 from Baltimore to Cardiff, returning Thu, Dec 18, priced at $789 found 5 days ago
Delta
Mon, Nov 24 - Fri, Dec 5
BWI
Baltimore
CWL
Cardiff
$789 Roundtrip, found 3 days ago
$789
Roundtrip
found 3 days ago
Select Delta flight, departing Mon, Nov 24 from Baltimore to Cardiff, returning Fri, Dec 5, priced at $789 found 3 days ago
Virgin Atlantic
Thu, Nov 13 - Wed, Nov 19
BWI
Baltimore
CWL
Cardiff
$795 Roundtrip, found 5 days ago
$795
Roundtrip
found 5 days ago
Select Virgin Atlantic flight, departing Thu, Nov 13 from Baltimore to Cardiff, returning Wed, Nov 19, priced at $795 found 5 days ago
Delta
Mon, Feb 2 - Mon, Feb 9
BWI
Baltimore
CWL
Cardiff
$796 Roundtrip, found 13 hours ago
$796
Roundtrip
found 13 hours ago
Select Delta flight, departing Mon, Feb 2 from Baltimore to Cardiff, returning Mon, Feb 9, priced at $796 found 13 hours ago
Delta
Mon, Jan 12 - Sun, Jan 18
BWI
Baltimore
CWL
Cardiff
$797 Roundtrip, found 1 day ago
$797
Roundtrip
found 1 day ago
Select Delta flight, departing Mon, Jan 12 from Baltimore to Cardiff, returning Sun, Jan 18, priced at $797 found 1 day ago
Delta
Thu, Jan 22 - Thu, Feb 12
BWI
Baltimore
CWL
Cardiff
$797 Roundtrip, found 2 days ago
$797
Roundtrip
found 2 days ago
Select Delta flight, departing Thu, Jan 22 from Baltimore to Cardiff, returning Thu, Feb 12, priced at $797 found 2 days ago
Delta
Mon, Feb 2 - Mon, Feb 9
BWI
Baltimore
CWL
Cardiff
$802 Roundtrip, found 13 hours ago
$802
Roundtrip
found 13 hours ago
Select Delta flight, departing Mon, Feb 2 from Baltimore to Cardiff, returning Mon, Feb 9, priced at $802 found 13 hours ago
KLM
Tue, Nov 18 - Thu, Nov 27
BWI
Baltimore
CWL
Cardiff
$840 Roundtrip, found 17 hours ago
$840
Roundtrip
found 17 hours ago
Select KLM flight, departing Tue, Nov 18 from Baltimore to Cardiff, returning Thu, Nov 27, priced at $840 found 17 hours ago
Air France
Thu, Dec 11 - Mon, Dec 15
BWI
Baltimore
CWL
Cardiff
$873 Roundtrip, found 4 days ago
$873
Roundtrip
found 4 days ago
Select Air France flight, departing Thu, Dec 11 from Baltimore to Cardiff, returning Mon, Dec 15, priced at $873 found 4 days ago

Alternative airports near Cardiff

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

Select flight to Cardiff Intl. CWL. Cheapest and Closest option available. Average driving time to city center is 20 minutes. Flights from $1,129
CWL
Cardiff Intl.
CheapestClosest
Average driving time to city center20 min
Flights from $1,129

Frequently asked questions

How much does a flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Cardiff Intl. Airport (CWL) cost?
Snag a cheap one-way flight from $476 or cheap return flight from $789 from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Cardiff Intl. Airport (CWL) 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 Cardiff Intl. Airport (CWL)?
The cheapest month to fly from BWI to CWL is November, when demand is low. Off-peak months are generally when airlines offer lower prices between these airports.
What is the cheapest airline that flies from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Cardiff Intl. Airport (CWL)?
Use the filters on Expedia to compare different airlines and find the cheapest carrier that'll fly you from BWI to CWL. Then, sort your results by "Price (lowest to highest)" to pick up a great deal.
How many flights per day from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Cardiff Intl. Airport (CWL)?
There aren't any daily direct flights available from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Cardiff Intl. Airport (CWL). But you can opt for flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be cruising above the clouds in no time at all.
What day of the week has the most flights from BWI to CWL?
You'll generally 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 Cardiff Intl. Airport (CWL)?
To touch down at Cardiff Intl. Airport (CWL) on schedule, opt for a flight that takes off from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) before 3 PM. The likelihood 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 Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Cardiff Intl. Airport (CWL) last-minute?
Last-minute fares from BWI to CWL are usually more expensive. To secure the cheapest rates, start searching for flights early. That said, if your travel plans are flexible, it's possible to score a cheap fare right before your journey.
Is it cheaper to book a BWI to CWL flight and hotel package?
Compared with arranging hotels and flights separately, booking a BWI to CWL flight and hotel package with Expedia could lead to significant savings. Better yet, having everything in one convenient place will take the stress out of planning your trip. Just secure your flights and select from our wide range of hotels, then customize your trip with other add-ons like activities and car rentals.
Can I cancel or change the date of my flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Cardiff Intl. Airport (CWL)?
If you reserved your BWI to CWL flight in the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the type of ticket 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, head to our Customer Service portal for more information.

Travel information

Origin airport
Baltimore Washington Intl. Thurgood Marshall
Destination airport
Cardiff Intl.
Airlines serving
Delta, KLM, Virgin Atlantic
Roundtrip price
$789
Distance
3507 mi

Book with confidence

Baltimore to Cardiff Flights

The cheapest times to fly from Baltimore to Cardiff

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

 

The best time to book a flight from Baltimore to Cardiff

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

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 Cardiff in 2025. You can also book with separate airlines for your outbound and return journeys, from $476 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 Cardiff 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 Cardiff 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 Cardiff Flights

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*Available to One Key members.