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Cheap flights from Massachusetts to Cardiff from £351

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 27/10. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — CWL
12 Oct — 19 Oct1
1 adult
1 adult, Economy

Cheap flight deals from Massachusetts to Cardiff

Keep the following information in mind while searching for Massachusetts to Cardiff flight deals. Data was last updated 12 September 2025.

Round-trip from

£351

Popular in

November

Cheapest in

February

Average price

£721
27/10-3/11
  • 27/10-3/11
  • 4 total stops
  • 43h 50m total
  • Massachusetts to Cardiff
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (£43 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (£33 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find flight deals from Massachusetts to Cardiff

Cheapest flights from Massachusetts to Cardiff
Explore the most affordable flight options available from Massachusetts to Cardiff. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 September 2025.

Mon 27/1020:50BOS - CWL
2 stops20h 30mMultiple Airlines
Mon 3/1123:30CWL - BOS
2 stops23h 20mMultiple Airlines
Deal found 11/9£351
Fri 26/920:30BOS - CWL
2 stops33h 05mMultiple Airlines
Fri 3/1012:25CWL - BOS
1 stop11h 20mMultiple Airlines
Deal found 11/9£563
Mon 22/921:25BOS - CWL
1 stop13h 30mMultiple Airlines
Fri 3/1012:25CWL - BOS
1 stop11h 20mMultiple Airlines
Deal found 11/9£579
Thu 27/1119:10BOS - CWL
1 stop16h 35mKLM
Mon 1/1217:15CWL - BOS
1 stop25h 05mKLM
Deal found 10/9£585
Mon 22/921:25BOS - CWL
1 stop13h 30mMultiple Airlines
Thu 2/1007:55CWL - BOS
1 stop11h 45mMultiple Airlines
Deal found 11/9£593
Mon 22/917:19BOS - CWL
2 stops17h 36mMultiple Airlines
Mon 6/1013:10CWL - BOS
1 stop10h 35mMultiple Airlines
Deal found 11/9£597
Tue 23/918:45BOS - CWL
1 stop9h 30mDelta
Thu 2/1009:50CWL - BOS
1 stop11h 40mDelta
Deal found 11/9£597
Mon 22/913:00BOS - CWL
2 stops15h 15mDelta
Sun 5/1009:50CWL - BOS
1 stop13h 30mDelta
Deal found 11/9£600

Cheapflights Fare Finder

 
Customise your flight search to find flights from Massachusetts to Cardiff that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 12 September 2025.
Use the filters below to find and compare flights from Massachusetts to Cardiff that are best for you.

Fly from

Massachusetts

Fly to

Cardiff

Route

Depart

Return

Price

BostonCardiff

BOS - CWL

BOSCWL

Boston Logan Intl

Mon 27/10

20:50-21:20

2 stops20h 30m

Cardiff Wales

Mon 3/11

23:30-17:50

2 stops23h 20m

£351

BostonCardiff

BOS - CWL

BOSCWL

Boston Logan Intl

Mon 29/9

16:50-16:45

1 stop18h 55m

Cardiff Wales

Wed 1/10

09:50-19:42

2 stops14h 52m

£563

BostonCardiff

BOS - CWL

BOSCWL

Boston Logan Intl

Thu 27/11

19:10-16:45

1 stop16h 35m

Cardiff Wales

Mon 1/12

17:15-13:20

1 stop25h 05m

£585

BostonCardiff

BOS - CWL

BOSCWL

Boston Logan Intl

Tue 23/9

18:45-09:15

1 stop9h 30m

Cardiff Wales

Thu 2/10

09:50-16:30

1 stop11h 40m

£597

BostonCardiff

BOS - CWL

BOSCWL

Boston Logan Intl

Fri 26/9

16:50-09:10

1 stop11h 20m

Cardiff Wales

Thu 2/10

09:50-16:30

1 stop11h 40m

£597

BostonCardiff

BOS - CWL

BOSCWL

Boston Logan Intl

Thu 25/9

18:45-09:15

1 stop9h 30m

Cardiff Wales

Fri 3/10

09:50-18:20

1 stop13h 30m

£597

BostonCardiff

BOS - CWL

BOSCWL

Boston Logan Intl

Fri 26/9

20:15-09:15

1 stop32h 00m

Cardiff Wales

Fri 3/10

09:50-18:20

1 stop13h 30m

£597

Flights are sorted by cheapest return flights first.

Deals found on 11/9

Best time to book a flight from Massachusetts to Cardiff

Have a flexible travel schedule? Discover the best time to fly to Cardiff from Massachusetts with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Massachusetts to Cardiff

What is the cheapest month to book a flight from Massachusetts to Cardiff?

Currently, July is the cheapest month in which you can book a flight from Massachusetts to Cardiff (average of £169). Flying from Massachusetts to Cardiff in December is currently the most expensive (average of £263). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost for a return flight from Massachusetts to Cardiff?

Related info for your journey

Find useful and relevant information for your journey from Massachusetts to Cardiff. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Cardiff from Massachusetts?

    Cardiff Wales (CWL), located 9.1 mi from the city center, is the airport you fly into when you book flights from Massachusetts to Cardiff.

  • How long is the flight from Massachusetts to Cardiff?

    There are many flights that can get you from Massachusetts to Cardiff in 18h 55m. Fly via KLM to get the fastest option. There are 3137 mi between Massachusetts and Cardiff.

  • What are the most popular routes from Massachusetts to Cardiff?

    While some choose either Hartford Bradley Intl - Cardiff Wales or Provincetown - Cardiff Wales, Boston Logan Intl - Cardiff Wales is the most popular route from Massachusetts to Cardiff.

  • Can I find deals for flights from Massachusetts to Cardiff that include hotel bookings?

    Yes. In addition to deals on Massachusetts to Cardiff flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Massachusetts to Cardiff?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Massachusetts to Cardiff.

  • Can I find deals for business class flights from Massachusetts to Cardiff?

    Yes. Cheapflights offers flight deals from Massachusetts to Cardiff by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Massachusetts to Cardiff?

    Currently, July is the cheapest month in which you can book a flight from Massachusetts to Cardiff (average of £169). Flying from Massachusetts to Cardiff in December is currently the most expensive (average of £263). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Cardiff?

Book flights to Cardiff if you plan to visit one of these locations
Barry
Bridgend

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Fly with Cheapflights

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How does Cheapflights help users find flights from Massachusetts to Cardiff?

When you search for this flight from Massachusetts to Cardiff, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Massachusetts to Cardiff?

Millions of users choose and trust Cheapflights to book the best flight deals from Massachusetts to Cardiff for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Massachusetts to Cardiff with no change fees?

Need flexible booking options for your flight to Cardiff from Massachusetts? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Massachusetts to Cardiff become cheaper?

Not ready to book yet? You can track prices for flights from Massachusetts to Cardiff on Cheapflights with our Price Alert feature and get notified when better prices are available.

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