$381 Cheap Flights from Baltimore (BWI) to Cardiff (CWL)

View $381 flight on Mon, Sep 7, 2026Opens in a new window

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

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Cheap Flights from Baltimore to Cardiff (BWI-CWL)

Prices were available within the past 7 days and start at $381 for one-way flights and $802 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, Mar 17 - Tue, Mar 31
BWI
Baltimore
CWL
Cardiff
$802 Roundtrip, found 5 days ago
$802
Roundtrip
found 5 days ago
Select Delta flight, departing Tue, Mar 17 from Baltimore to Cardiff, returning Tue, Mar 31, priced at $802 found 5 days ago
Delta
Tue, Feb 24 - Mon, Mar 2
BWI
Baltimore
CWL
Cardiff
$803 Roundtrip, found 3 days ago
$803
Roundtrip
found 3 days ago
Select Delta flight, departing Tue, Feb 24 from Baltimore to Cardiff, returning Mon, Mar 2, priced at $803 found 3 days ago
Virgin Atlantic
Sun, Apr 19 - Tue, Apr 28
BWI
Baltimore
CWL
Cardiff
$817 Roundtrip, found 6 days ago
$817
Roundtrip
found 6 days ago
Select Virgin Atlantic flight, departing Sun, Apr 19 from Baltimore to Cardiff, returning Tue, Apr 28, priced at $817 found 6 days ago
Delta
Tue, Mar 17 - Thu, Apr 2
BWI
Baltimore
CWL
Cardiff
$818 Roundtrip, found 5 days ago
$818
Roundtrip
found 5 days ago
Select Delta flight, departing Tue, Mar 17 from Baltimore to Cardiff, returning Thu, Apr 2, priced at $818 found 5 days ago
Virgin Atlantic
Sun, Apr 19 - Tue, Apr 28
BWI
Baltimore
CWL
Cardiff
$823 Roundtrip, found 6 days ago
$823
Roundtrip
found 6 days ago
Select Virgin Atlantic flight, departing Sun, Apr 19 from Baltimore to Cardiff, returning Tue, Apr 28, priced at $823 found 6 days ago
Virgin Atlantic
Tue, Aug 18 - Sat, Aug 29
BWI
Baltimore
CWL
Cardiff
$823 Roundtrip, found 5 days ago
$823
Roundtrip
found 5 days ago
Select Virgin Atlantic flight, departing Tue, Aug 18 from Baltimore to Cardiff, returning Sat, Aug 29, priced at $823 found 5 days ago
Virgin Atlantic
Sun, Apr 19 - Tue, Apr 28
BWI
Baltimore
CWL
Cardiff
$828 Roundtrip, found 6 days ago
$828
Roundtrip
found 6 days ago
Select Virgin Atlantic flight, departing Sun, Apr 19 from Baltimore to Cardiff, returning Tue, Apr 28, priced at $828 found 6 days ago
KLM
Mon, Mar 16 - Tue, Mar 31
BWI
Baltimore
CWL
Cardiff
$830 Roundtrip, found 5 days ago
$830
Roundtrip
found 5 days ago
Select KLM flight, departing Mon, Mar 16 from Baltimore to Cardiff, returning Tue, Mar 31, priced at $830 found 5 days ago
Delta
Tue, Mar 17 - Mon, Mar 30
BWI
Baltimore
CWL
Cardiff
$831 Roundtrip, found 5 days ago
$831
Roundtrip
found 5 days ago
Select Delta flight, departing Tue, Mar 17 from Baltimore to Cardiff, returning Mon, Mar 30, priced at $831 found 5 days ago
Air France
Sat, Aug 15 - Tue, Sep 1
BWI
Baltimore
CWL
Cardiff
$845 Roundtrip, found 5 days ago
$845
Roundtrip
found 5 days ago
Select Air France flight, departing Sat, Aug 15 from Baltimore to Cardiff, returning Tue, Sep 1, priced at $845 found 5 days ago

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Alternative airports near Cardiff

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

Select flight to Bristol Intl. BRS. Average driving time to city center is 1 hour 0 minutes. Flights from $809
BRS
Bristol Intl.
Average driving time to city center1 h 0 min
Flights from $809

Frequently asked questions

How much does a flight from Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Cardiff (CWL-Cardiff Intl.) cost?
You can find cheap one-way flights from $381 and cheap return flights from $802 BWI to CWL with Expedia. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see our cheapest fares first, and use the Price Tracking tool to receive alerts when BWI to CWL ticket fares go up or down.
What is the cheapest month to fly from Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Cardiff (CWL-Cardiff Intl.)?
The cheapest month to fly from BWI to CWL is March when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Cardiff (CWL-Cardiff Intl.)?
Enter BWI to CWL and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Cardiff (CWL-Cardiff Intl.)?
Delta, Virgin Atlantic and KLM are just some of the carriers that fly from Baltimore, MD (BWI) to Cardiff (CWL). Use Expedia's flight search tool to compare airlines on this route and find our cheapest option for your trip. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Cardiff (CWL-Cardiff Intl.)?
To find a cheap flight from Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Cardiff (CWL-Cardiff Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Cardiff (CWL-Cardiff Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
What is the earliest flight from Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Cardiff (CWL-Cardiff Intl.)?
The earliest flight from Baltimore (BWI) to Cardiff (CWL) typically departs at around 6:15 AM, operated by United and Loganair. This seasonal service is active in April, allowing you to begin your adventure in Wales early in the day. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
How long does it take to fly from Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Cardiff (CWL-Cardiff Intl.)?
A flight from BWI to CWL with a layover takes around 22 hours 50 minutes, with the route covering approximately 3,508 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Cardiff (CWL-Cardiff Intl.)?
Select the "Business class" and "First class" filters when looking for BWI to CWL flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Cardiff (CWL-Cardiff Intl.) flight with Expedia?
It's easy to earn miles on a Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Cardiff (CWL-Cardiff Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Cardiff from Baltimore Washington Intl. Thurgood Marshall (BWI)?
If you're planning to travel to Cardiff from Baltimore Washington Intl. Thurgood Marshall (BWI), you can fly typically into Cardiff Intl. (CWL) Some flights may connect through major hubs like Detroit Metropolitan Wayne County (DTW), Hartsfield-Jackson Atlanta Intl. (ATL), Logan Intl. (BOS) before reaching Cardiff. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Cardiff (CWL-Cardiff Intl.) at the last minute?
Typically, booking a last minute flight from Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Cardiff (CWL-Cardiff Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Cardiff (CWL-Cardiff Intl.) flight and hotel package?
Securing a Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Cardiff (CWL-Cardiff Intl.) Cardiff Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Cardiff (CWL-Cardiff Intl.)?
If you booked your Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall) to Cardiff (CWL-Cardiff Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Baltimore Washington Intl. Thurgood Marshall
Destination airport
Cardiff Intl.
Airlines serving
Delta, Virgin Atlantic
Roundtrip price
$801
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 March. 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 2026. You can also book with separate airlines for your outbound and return journeys, from $381 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

*Flight schedules are subject to change.

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*Available to One Key members.