Cheap Flights from Boston Logan International to Cardiff

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Compare Boston Logan International to Cardiff flight deals

Find the cheapest month or even day of the year to fly to Cardiff

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Flight deals from Boston Logan International to Cardiff

Looking for a cheap last-minute deal or the best return flight from Boston Logan International to Cardiff? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Boston Logan International to Cardiff

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Boston Logan International to Cardiff flights are currently cheapest in November.

Boston Logan International to Cardiff: Alternative routes

Compare routes from Boston Logan International to Cardiff below. You may find an airport to fly into that's cheaper, faster, or easier than Cardiff.

Boston to Cardiff: Flight information

The things to know before you go.
Cheapest flight found634 €
Cheapest month to flyNovember

Finding cheap flights from Boston Logan International to Cardiff: Frequently asked questions

The best price we found for a return flight from Boston Logan International to Cardiff is 634 €. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Boston Logan International to Cardiff. But we found flights with one or more stops from 634 €.
As of June 2025, there are no flights flying from Boston Logan International to Cardiff.
The cheapest month to fly from Boston Logan International to Cardiff is usually June 2025.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Boston Logan International Airport to Cardiff Airport on Friday, 14 November 2025.
No airlines currently offer direct flights between Boston Logan International Airport and Cardiff Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Cardiff but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Cardiff is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, KLM offers the cheapest flight tickets to Cardiff.

Flying from Logan International Airport (BOS) to Cardiff Airport (CWL): what you need to know

  • The timezone in Cardiff is UTC+0, which is four hours ahead of Boston.

  • To ensure you get on your BOS to CWL flight, leave enough time for things like check-in and baggage drop. Arriving two hours ahead of international departures and an hour before domestic flights is the standard rule.

  • Flying during a peak time like August? School holidays and other high seasons can lead to longer queues and delays at check-in and security. Play things extra safe and arrive up to four hours before an international flight and two hours before domestic departures.

  • Think about adding a stopover when booking your ticket from Logan International Airport to Cardiff Airport. Just deselect 'Direct flights only' to break up your journey, or visit a new city along the way. Here are some options between BOS and CWL:

    • Amsterdam Airport Schiphol

    • Keflavik International Airport

    • Dublin Airport

How to find the cheapest flights from Logan International Airport (BOS) to Cardiff Airport (CWL)

  • 330 € is currently the best price for a one-way Logan International Airport to Cardiff Airport flight. Return flights start from 634 €. These fares may change depending on demand.

  • It's often best to book in advance if you want to get cheap tickets from BOS to CWL. That's because flight prices are based on demand, which tends to increase closer to the date of departure.

  • Finding cheap flights from Logan International Airport to Cardiff Airport is more likely if you can be flexible with your dates. Use the 'Whole month' search function to see the lowest fares across every month and snap up a great deal.

  • Never miss a deal on cheap flights from BOS to CWL by setting up a Price Alert. We'll send you an email or notification on the app when a new discounted fare appears.

  • Select your preferred departure and arrival times, airlines and number of stops with the filters. Alternatively, sort your results by 'Cheapest' to find the best deals on flights from Logan International Airport to Cardiff Airport.

Handy information about Logan International Airport (BOS)

  • You'll find BOS at One Harborside Drive.

  • When it comes to the on-time performance of Logan International Airport, 73.94% of flights complete their journey on time.

  • To reach Logan International Airport from central Boston, it'll take about 10 minutes if you're going by car. This depends on traffic though. It's approximately 5 kilometres from the airport to the city centre.

  • Expect a trip time of around 25 minutes on public transport.

  • Taking an early flight from Logan International Airport to Cardiff Airport? Avoid the stress of rushing to the terminal (and sneak in some extra snooze time) by choosing one of these stays near BOS:

Arriving at Cardiff Airport (CWL)

  • The last thing you need is a lengthy journey to your hotel if you're landing late on a Logan International Airport to Cardiff Airport flight. Book one of these accommodation options near CWL instead:

  • Go where the road takes you with a Cardiff Airport rental car. Pick up a set of wheels from Europcar, Keddy By Europcar or Enterprise and chase adventure across Cardiff and beyond.

  • To get the best deal, reserve your vehicle from Cardiff Airport around four weeks ahead.

Getting from Cardiff Airport (CWL) to central Cardiff

  • Cardiff Airport to the centre of Cardiff has a drive time of around 30 minutes. It's approximately 27 kilometres away.

  • Travelling by public transport takes around 1 hour 5 minutes.

When to fly to Cardiff Airport (CWL)

  • It's time to plan your travel dates for your flight from Logan International Airport to Cardiff Airport. June is the busiest month to head to Cardiff. If you want a more relaxed vibe, go in April.

  • When booking your flight from Logan International Airport to Cardiff Airport, consider the type of weather you enjoy. July is the warmest month in Cardiff, with the temperature ranging from 11ºC (52ºF) to 22ºC (72ºF).

  • If you'd rather travel in cooler conditions, look for a cheap ticket from BOS to CWL in January. Average temperatures are between 0ºC (32ºF) and 9ºC (48ºF) then.

Explore more of United Kingdom

  • Cardiff has plenty to offer, but there are so many other corners of United Kingdom just waiting to be discovered. About 209 kilometres east of Cardiff, a trip to London will keep your itinerary packed. Start with popular sights like Big Ben, The British Museum and Buckingham Palace.

  • Birmingham is another favourite destination in United Kingdom and is around 145 kilometres north-east of Cardiff. No journey is complete without experiencing Cadbury World, The Library of Birmingham and National Sea Life Centre.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.