HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Cardiff

$270+ Cheap flights from Massachusetts to Cardiff (CWL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/1. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — CWL
Mrz 5 — Mrz 121
Do 3/5
Do 3/12
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Massachusetts to Cardiff with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap 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 Februar 3, 2026.

This KLM deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Di 3/241:55 pm
BOS
-
CWL
2 stops15h 55m
KLM
Mo 3/305:15 pm
CWL
-
BOS
1 stop24h 58m
KLM
Deal found 2/3$697
This Delta deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mi 3/1812:45 pm
BOS
-
CWL
2 stops17h 05m
Delta
Mi 3/2510:20 am
CWL
-
BOS
2 stops17h 33m
Delta
Deal found 2/1$710
This Delta deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Di 3/241:55 pm
BOS
-
CWL
2 stops15h 55m
Delta
Mo 3/309:45 am
CWL
-
BOS
1 stop11h 40m
Delta
Deal found 2/3$749
This Air France deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
So 9/64:40 pm
BOS
-
CWL
1 stop19h 05m
Air France
Mo 9/149:45 am
CWL
-
BOS
1 stop11h 50m
Air France
Deal found 2/3$757
This Mytrip deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Di 2/171:00 pm
BOS
-
CWL
2 stops21h 30m
Multiple Airlines
Fr 2/2010:25 pm
CWL
-
BOS
2 stops24h 37m
Multiple Airlines
Deal found 2/3$759
This KLM deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mi 3/189:50 pm
BOS
-
CWL
1 stop15h 05m
KLM
Mi 3/255:25 pm
CWL
-
BOS
1 stop24h 55m
KLM
Deal found 2/1$796
This Kiwi.com deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Di 3/2410:20 pm
BOS
-
CWL
1 stop31h 45m
Multiple Airlines
Mo 3/3010:25 pm
CWL
-
BOS
1 stop25h 25m
Multiple Airlines
Deal found 2/3$817
This KLM deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Di 2/177:10 pm
BOS
-
CWL
1 stop9h 40m
KLM
Fr 2/2010:20 am
CWL
-
BOS
2 stops18h 00m
KLM
Deal found 2/3$832

Find flight deals from Massachusetts to Cardiff

Keep the following information in mind while searching for Massachusetts to Cardiff flight deals. Data was last updated Februar 3, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$697
(KLM)

One-way from

$270
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$774
Provider with most accurate pricing for Boston Logan Intl-Cardiff Wales flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boston Logan Intl-Cardiff Wales flights.
Search Deals
From Massachusetts to Cardiff Wales
Search Deals
One-way flight from Massachusetts to Cardiff Wales
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($208 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($44 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated Februar 3, 2026.
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

Di 3/24

1:55 pm-9:50 am

2 stops15h 55m

Cardiff Wales

Mo 3/30

5:15 pm-1:13 pm

1 stop24h 58m

$697

BostonCardiff

BOS - CWL

BOSCWL

Boston Logan Intl

Mi 3/18

12:45 pm-9:50 am

2 stops17h 05m

Cardiff Wales

Mi 3/25

10:20 am-11:53 pm

2 stops17h 33m

$710

BostonCardiff

BOS - CWL

BOSCWL

Boston Logan Intl

Di 3/24

1:55 pm-9:50 am

2 stops15h 55m

Cardiff Wales

Mo 3/30

9:45 am-4:25 pm

1 stop11h 40m

$749

BostonCardiff

BOS - CWL

BOSCWL

Boston Logan Intl

Mi 3/18

9:50 pm-4:55 pm

1 stop15h 05m

Cardiff Wales

Mi 3/25

5:25 pm-2:20 pm

1 stop24h 55m

$796

BostonCardiff

BOS - CWL

BOSCWL

Boston Logan Intl

Di 3/24

10:20 pm-10:05 am

1 stop31h 45m

Cardiff Wales

Mo 3/30

10:25 pm-6:50 pm

1 stop25h 25m

$817

BostonCardiff

BOS - CWL

BOSCWL

Boston Logan Intl

Di 2/17

7:10 pm-9:50 am

1 stop9h 40m

Cardiff Wales

Fr 2/20

10:20 am-6:55 pm

1 stop13h 35m

$938

BostonCardiff

BOS - CWL

BOSCWL

Boston Logan Intl

Fr 3/20

10:20 pm-7:40 pm

1 stop17h 20m

Cardiff Wales

Fr 3/27

10:25 pm-3:35 pm

2 stops21h 10m

$1,000

BostonCardiff

BOS - CWL

BOSCWL

Boston Logan Intl

Mi 4/1

11:00 pm-10:25 pm

3 stops18h 25m

$270

BostonCardiff

BOS - CWL

BOSCWL

Boston Logan Intl

Mi 3/18

6:10 pm-10:05 am

1 stop11h 55m

$281

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/2

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 round-trip 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, April is the cheapest month in which you can book a flight from Massachusetts to Cardiff (average of $218). Flying from Massachusetts to Cardiff in June is currently the most expensive (average of $1,059). 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.

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?

    Airlines like KLM and Delta fly from Massachusetts to Cardiff in about 15h 55m. The time it takes to get you to your destination can typically vary by up to 1h 10m. The distance from Massachusetts to Cardiff is about 3137 mi. This flight may include one or multiple stops.

  • 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 vacation 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, April is the cheapest month in which you can book a flight from Massachusetts to Cardiff (average of $218). Flying from Massachusetts to Cardiff in June is currently the most expensive (average of $1,059). 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

Traveling to a place near Cardiff?

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Massachusetts to Cardiff

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Manchester flights
Newark to Manchester flights
LaGuardia to Manchester flights
O'Hare Intl to Manchester flights
Orlando to Manchester flights
Dulles Intl to Manchester flights
Boston to Manchester flights
Dallas/Fort Worth to Manchester flights
Los Angeles to Manchester flights
Atlanta to Manchester flights
Baltimore to Manchester flights
Reagan-National to Manchester flights
Midway to Manchester flights
Hobby to Manchester flights
Seattle to Manchester flights
Denver to Manchester flights
Tampa to Manchester flights
George Bush Intcntl to Manchester flights
San Francisco to Manchester flights
Raleigh to Manchester flights
Love Field to Manchester flights
Philadelphia to Manchester flights
Sky Harbor Intl to Manchester flights
Minneapolis to Manchester flights
Santa Ana to Manchester flights
Charlotte to Manchester flights
Des Moines to Manchester flights
Portland to Manchester flights
Ontario to Manchester flights
Austin to Manchester flights
Nashville to Manchester flights
Miami to Manchester flights
Detroit to Manchester flights
Pittsburgh to Manchester flights
Spokane to Manchester flights
Cleveland to Manchester flights
Salt Lake City to Manchester flights
San Jose to Manchester flights
John F Kennedy Intl to Bristol flights
Burbank to Manchester flights
Green Bay to Manchester flights
Cincinnati to Manchester flights
Las Vegas to Manchester flights
St. Louis to Manchester flights
Newark to Bristol flights
Columbus to Manchester flights
Fort Lauderdale to Manchester flights
Oakland to Manchester flights
San Antonio to Manchester flights
Memphis to Manchester flights

Top 2 airlines flying from Massachusetts to Cardiff

Discover the top 2 airlines that operate flights from Massachusetts to Cardiff. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated Februar 3, 2026.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$644Average$827FlexibilityNo cancel feeOn-time75%
DeltaCheapest$791Average$964FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.