$1,263 Cheap Flights from Cardiff (CWL) to Baltimore (BWI)

View $1,263 flight on Sat, Feb 14, 2026Opens in a new window

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

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Cheap Flights from Cardiff to Baltimore (CWL-BWI)

Prices were available within the past 7 days and start at $1,263 for one-way flights and $1,100 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Aer Lingus
Sun, Sep 21 - Sun, Sep 28
CWL
Cardiff
BWI
Baltimore
$1,100 Roundtrip, found 3 days ago
$1,100
Roundtrip
found 3 days ago
Select Aer Lingus flight, departing Sun, Sep 21 from Cardiff to Baltimore, returning Sun, Sep 28, priced at $1,100 found 3 days ago
Aer Lingus
Sat, Sep 13 - Mon, Sep 22
CWL
Cardiff
BWI
Baltimore
$1,122 Roundtrip, found 3 days ago
$1,122
Roundtrip
found 3 days ago
Select Aer Lingus flight, departing Sat, Sep 13 from Cardiff to Baltimore, returning Mon, Sep 22, priced at $1,122 found 3 days ago
Aer Lingus
Sun, Sep 21 - Sun, Sep 28
CWL
Cardiff
BWI
Baltimore
$1,149 Roundtrip, found 3 days ago
$1,149
Roundtrip
found 3 days ago
Select Aer Lingus flight, departing Sun, Sep 21 from Cardiff to Baltimore, returning Sun, Sep 28, priced at $1,149 found 3 days ago
British Airways
Sun, Sep 21 - Sun, Sep 28
CWL
Cardiff
BWI
Baltimore
$1,151 Roundtrip, found 3 days ago
$1,151
Roundtrip
found 3 days ago
Select British Airways flight, departing Sun, Sep 21 from Cardiff to Baltimore, returning Sun, Sep 28, priced at $1,151 found 3 days ago
Aer Lingus
Mon, Sep 8 - Mon, Sep 15
CWL
Cardiff
BWI
Baltimore
$1,180 Roundtrip, found 14 hours ago
$1,180
Roundtrip
found 14 hours ago
Select Aer Lingus flight, departing Mon, Sep 8 from Cardiff to Baltimore, returning Mon, Sep 15, priced at $1,180 found 14 hours ago
British Airways
Mon, Sep 8 - Mon, Sep 15
CWL
Cardiff
BWI
Baltimore
$1,186 Roundtrip, found 14 hours ago
$1,186
Roundtrip
found 14 hours ago
Select British Airways flight, departing Mon, Sep 8 from Cardiff to Baltimore, returning Mon, Sep 15, priced at $1,186 found 14 hours ago
British Airways
Sun, Sep 21 - Sun, Sep 28
CWL
Cardiff
BWI
Baltimore
$1,186 Roundtrip, found 3 days ago
$1,186
Roundtrip
found 3 days ago
Select British Airways flight, departing Sun, Sep 21 from Cardiff to Baltimore, returning Sun, Sep 28, priced at $1,186 found 3 days ago
British Airways
Sun, Sep 21 - Sun, Sep 28
CWL
Cardiff
BWI
Baltimore
$1,233 Roundtrip, found 3 days ago
$1,233
Roundtrip
found 3 days ago
Select British Airways flight, departing Sun, Sep 21 from Cardiff to Baltimore, returning Sun, Sep 28, priced at $1,233 found 3 days ago
Aer Lingus
Mon, Sep 8 - Mon, Sep 15
CWL
Cardiff
BWI
Baltimore
$1,235 Roundtrip, found 14 hours ago
$1,235
Roundtrip
found 14 hours ago
Select Aer Lingus flight, departing Mon, Sep 8 from Cardiff to Baltimore, returning Mon, Sep 15, priced at $1,235 found 14 hours ago
Aer Lingus
Mon, Sep 8 - Mon, Sep 15
CWL
Cardiff
BWI
Baltimore
$1,341 Roundtrip, found 14 hours ago
$1,341
Roundtrip
found 14 hours ago
Select Aer Lingus flight, departing Mon, Sep 8 from Cardiff to Baltimore, returning Mon, Sep 15, priced at $1,341 found 14 hours ago
Flights from Cardiff (CWL) to Baltimore (BWI)
Origin airport
Cardiff Intl.
Destination airport
Baltimore Washington Intl. Thurgood Marshall
Airlines serving
British Airways
Roundtrip price
$1,099
Distance
3507 mi

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 September. 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 $1,263 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.

 

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 $1,263 or cheap return flight from $1,100 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 September, 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.

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*Available to One Key members.