£268 Cheap Flights from Boston (BOS) to Cardiff (CWL)

View £268 flight on Wed, 1 Oct 2025Opens in a new window

Popular airlines from Logan International Airport (BOS) to Cardiff International Airport (CWL)

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Cheap Flights from Boston (BOS) to Cardiff (CWL)

Prices were available within the past 7 days and start at £268 for one-way flights and £503 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Virgin Atlantic
Fri, 10 Oct - Fri, 24 Oct
BOS
Boston
CWL
Cardiff
£503 Return, found 3 days ago
£503
Return
found 3 days ago
Select Virgin Atlantic flight, departing Fri, 10 Oct from Boston to Cardiff, returning Fri, 24 Oct, priced at £503 found 3 days ago
Virgin Atlantic
Fri, 14 Nov - Sun, 16 Nov
BOS
Boston
CWL
Cardiff
£519 Return, found 6 days ago
£519
Return
found 6 days ago
Select Virgin Atlantic flight, departing Fri, 14 Nov from Boston to Cardiff, returning Sun, 16 Nov, priced at £519 found 6 days ago
Virgin Atlantic
Fri, 10 Oct - Fri, 24 Oct
BOS
Boston
CWL
Cardiff
£522 Return, found 3 days ago
£522
Return
found 3 days ago
Select Virgin Atlantic flight, departing Fri, 10 Oct from Boston to Cardiff, returning Fri, 24 Oct, priced at £522 found 3 days ago
KLM
Sat, 13 Sep - Sat, 20 Sep
BOS
Boston
CWL
Cardiff
£526 Return, found 1 day ago
£526
Return
found 1 day ago
Select KLM flight, departing Sat, 13 Sep from Boston to Cardiff, returning Sat, 20 Sep, priced at £526 found 1 day ago
KLM
Sat, 13 Sep - Sat, 20 Sep
BOS
Boston
CWL
Cardiff
£530 Return, found 1 day ago
£530
Return
found 1 day ago
Select KLM flight, departing Sat, 13 Sep from Boston to Cardiff, returning Sat, 20 Sep, priced at £530 found 1 day ago
Virgin Atlantic
Fri, 14 Nov - Sun, 16 Nov
BOS
Boston
CWL
Cardiff
£539 Return, found 6 days ago
£539
Return
found 6 days ago
Select Virgin Atlantic flight, departing Fri, 14 Nov from Boston to Cardiff, returning Sun, 16 Nov, priced at £539 found 6 days ago
KLM
Fri, 10 Oct - Fri, 24 Oct
BOS
Boston
CWL
Cardiff
£540 Return, found 3 days ago
£540
Return
found 3 days ago
Select KLM flight, departing Fri, 10 Oct from Boston to Cardiff, returning Fri, 24 Oct, priced at £540 found 3 days ago
Air France
Fri, 10 Oct - Fri, 24 Oct
BOS
Boston
CWL
Cardiff
£541 Return, found 3 days ago
£541
Return
found 3 days ago
Select Air France flight, departing Fri, 10 Oct from Boston to Cardiff, returning Fri, 24 Oct, priced at £541 found 3 days ago
KLM
Sun, 3 Aug - Mon, 18 Aug
BOS
Boston
CWL
Cardiff
£541 Return, found 2 days ago
£541
Return
found 2 days ago
Select KLM flight, departing Sun, 3 Aug from Boston to Cardiff, returning Mon, 18 Aug, priced at £541 found 2 days ago
ITA Airways
Fri, 10 Oct - Fri, 24 Oct
BOS
Boston
CWL
Cardiff
£912 Return, found 3 days ago
£912
Return
found 3 days ago
Select ITA Airways flight, departing Fri, 10 Oct from Boston to Cardiff, returning Fri, 24 Oct, priced at £912 found 3 days ago

Find the cheapest month to fly from Boston (BOS) to Cardiff (CWL)

August is typically the cheapest month to fly

From £508 - £1,242 per traveller.

Graph displaying average flight prices per month

Flight from Boston to Cardiff route information
Origin airport
Logan Intl.
Destination airport
Cardiff Intl.
Airlines serving
ITA Airways, KLM, Virgin Atlantic
Return price
£502
Distance
5022 km

Compare flights from Boston to Cardiff easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Boston to Cardiff. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Cardiff Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Logan Intl. to Cardiff Intl..  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Logan Intl. (BOS) to Cardiff Intl. (CWL)

The easiest way to view the best deals on flights from Boston to Cardiff today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Logan Intl. to Cardiff Intl. start at just £503 and range up to £912.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Boston and Cardiff
  • booking your flight during October, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Boston to Cardiff flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Logan Intl. to Cardiff Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Frequently asked questions

How much is a flight from Logan Intl. Airport (BOS) to Cardiff Airport?
Round-trip journeys between Logan Intl. Airport and Cardiff Airport start from £503. This is based on fares available within the last 7 days on Expedia for flights departing within the next year — book now to avoid missing out. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Logan Intl. Airport (BOS) to CWL?
We get that life can throw the odd curveball, so we've made it as simple as possible for you to cancel your flight online. Just head to the Customer Service Portal and follow the instructions.
How do I find cheap flights from Logan Intl. Airport (BOS) to CWL that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Logan Intl. Airport to CWL flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Logan Intl. Airport (BOS) to Cardiff Airport?
The distance is around 5,100 kilometres, so pack your carry-on luggage with all the items you need to make the long journey comfortable. Wondering what to take on board your Boston to Barry flight? A neck pillow, earplugs and a sleep mask are among the essentials.
Which airlines fly direct from Logan Intl. Airport to Cardiff Airport?
Currently, no airlines offer flights directly from BOS to Cardiff Intl. Airport (CWL). You'll have to book a flight with at least one stop. To score the best connections and price, lock in your airfare well ahead of time.
Are Logan Intl. Airport to Cardiff Airport flight tickets cheaper when they're purchased at the last minute?
Last-minute planners can occasionally pick up a bargain, with some super cheap airfares from Logan Intl. Airport (BOS) to CWL showing up a few weeks before the date of departure. If you'd rather plan ahead, Expedia compares and updates all the best flight deals regularly — as early as a year in advance in some cases. It depends on the carrier though, as not all airlines quote prices so far in advance.

Explore a world of travel with Expedia

Cardiff Airports

Bristol

Boston to Bristol Intl.
£459.75

Exeter

Boston to Exeter Intl.
£541.61
Boston Airports

Manchester

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