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Cheap flights from Massachusetts to Cardiff from £249

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Massachusetts to Cardiff departing on 24/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Massachusetts to Cardiff

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
20:05 - 22:50BOS  Boston Logan Intl-CWL Cardiff Wales
21h 45m2 stops Munich Franz Josef Strauss Dublin
Multiple Airlines Logo
22:45 - 14:41CWL  Cardiff Wales-BOS Boston Logan Intl
20h 56m2 stops Dublin Montreal Pierre Elliott Trudeau Intl
£563Multiple Airlines
Mon, 7 Sep - Fri, 18 Sep
Multiple Airlines Logo
17:25 - 23:25BOS  Boston Logan Intl-CWL Cardiff Wales
25h 00m1 stop Dublin
Multiple Airlines Logo
21:45 - 21:05CWL  Cardiff Wales-BOS Boston Logan Intl
28h 20m2 stops Alicante Barcelona-El Prat
£568Multiple Airlines
Tue, 15 Sep - Tue, 29 Sep
Multiple Airlines Logo
21:40 - 21:45BOS  Boston Logan Intl-CWL Cardiff Wales
19h 05m2 stops Zurich Dublin
Multiple Airlines Logo
23:50 - 14:41CWL  Cardiff Wales-BOS Boston Logan Intl
19h 51m2 stops Dublin Montreal Pierre Elliott Trudeau Intl
£569Multiple Airlines
Sun, 6 Sep - Wed, 16 Sep
Multiple Airlines Logo
17:25 - 22:50BOS  Boston Logan Intl-CWL Cardiff Wales
24h 25m1 stop Dublin
Multiple Airlines Logo
21:45 - 21:05CWL  Cardiff Wales-BOS Boston Logan Intl
28h 20m2 stops Alicante Barcelona-El Prat
£570Multiple Airlines
Mon, 21 Sep - Tue, 6 Oct
Multiple Airlines Logo
21:40 - 21:45BOS  Boston Logan Intl-CWL Cardiff Wales
19h 05m2 stops Zurich Dublin
Multiple Airlines Logo
22:10 - 16:10CWL  Cardiff Wales-BOS Boston Logan Intl
23h 00m2 stops Dublin Toronto Pearson Intl
£587Multiple Airlines
Sun, 27 Sep - Mon, 12 Oct
Multiple Airlines Logo
21:15 - 21:45BOS  Boston Logan Intl-CWL Cardiff Wales
19h 30m1 stop Dublin
Multiple Airlines Logo
23:50 - 18:35CWL  Cardiff Wales-BOS Boston Logan Intl
23h 45m2 stops Dublin Toronto Pearson Intl
£608Multiple Airlines
Sun, 6 Sep - Wed, 16 Sep
Multiple Airlines Logo
20:50 - 22:50BOS  Boston Logan Intl-CWL Cardiff Wales
21h 00m2 stops Reykjavik Keflavik Intl Dublin
Multiple Airlines Logo
22:45 - 20:20CWL  Cardiff Wales-BOS Boston Logan Intl
26h 35m3 stops Dublin Lisbon Humberto Delgado Porto
£661Multiple Airlines
Mon, 7 Sep - Fri, 18 Sep
Multiple Airlines Logo
21:15 - 22:50BOS  Boston Logan Intl-CWL Cardiff Wales
20h 35m1 stop Dublin
Multiple Airlines Logo
22:10 - 16:40CWL  Cardiff Wales-BOS Boston Logan Intl
23h 30m2 stops Dublin Madrid Barajas
£668Multiple Airlines
Mon, 28 Sep - Mon, 12 Oct
Multiple Airlines Logo
21:15 - 21:45BOS  Boston Logan Intl-CWL Cardiff Wales
19h 30m1 stop Dublin
Multiple Airlines Logo
17:45 - 20:20CWL  Cardiff Wales-BOS Boston Logan Intl
31h 35m2 stops Faro Porto
£674Multiple Airlines
Sun, 6 Sep - Fri, 18 Sep
Multiple Airlines Logo
21:15 - 22:50BOS  Boston Logan Intl-CWL Cardiff Wales
20h 35m1 stop Dublin
Multiple Airlines Logo
17:45 - 20:20CWL  Cardiff Wales-BOS Boston Logan Intl
31h 35m2 stops Faro Porto
£681Multiple Airlines
Mon, 7 Sep - Fri, 18 Sep

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Delta flights from Massachusetts to Cardiff

Our best Delta deals on Massachusetts to Cardiff flight tickets
Delta
21 Sept
BOS12:00Boston Logan Intl
16h 15m
2 stops
CWL09:15Cardiff Wales
6 Oct
CWL09:45Cardiff Wales
32h 30m
1 stop
BOS13:15Boston Logan Intl
£844
Delta
28 Sept
BOS13:00Boston Logan Intl
15h 15m
2 stops
CWL09:15Cardiff Wales
12 Oct
CWL09:45Cardiff Wales
41h 39m
2 stops
BOS22:24Boston Logan Intl
£846
Delta
6 Sept
BOS12:25Boston Logan Intl
15h 50m
2 stops
CWL09:15Cardiff Wales
16 Sept
CWL09:45Cardiff Wales
11h 50m
1 stop
BOS16:35Boston Logan Intl
£847

KLM flights from Massachusetts to Cardiff

Our best KLM deals on Massachusetts to Cardiff flight tickets
KLM
16 Nov
BOS19:25Boston Logan Intl
9h 25m
1 stop
CWL09:50Cardiff Wales
23 Nov
CWL17:30Cardiff Wales
25h 43m
1 stop
BOS14:13Boston Logan Intl
£818
KLM
16 Nov
BOS19:25Boston Logan Intl
9h 25m
1 stop
CWL09:50Cardiff Wales
23 Nov
CWL17:30Cardiff Wales
25h 43m
1 stop
BOS14:13Boston Logan Intl
£819
KLM
16 Nov
BOS13:00Boston Logan Intl
15h 50m
2 stops
CWL09:50Cardiff Wales
23 Nov
CWL17:30Cardiff Wales
25h 43m
1 stop
BOS14:13Boston Logan Intl
£822

momondo 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, momondo users made 279,928 searches. Data last updated 9 August 2026.
Use the filters below to find and compare flights from Massachusetts to Cardiff that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BostonCardiff

BOS Boston Logan Intl - CWL Cardiff Wales

BOSCWL

Boston Logan Intl

Mon 7/9

20:05-22:50

2 stops21h 45m

Cardiff Wales

Fri 18/9

22:45-14:41

2 stops20h 56m

£563

BostonCardiff

BOS Boston Logan Intl - CWL Cardiff Wales

BOSCWL

Boston Logan Intl

Tue 15/9

17:25-23:25

1 stop25h 00m

Cardiff Wales

Tue 29/9

21:45-21:05

2 stops28h 20m

£568
Fastest return journey

BostonCardiff

BOS Boston Logan Intl - CWL Cardiff Wales

BOSCWL

Boston Logan Intl

Sun 6/9

21:40-21:45

2 stops19h 05m

Cardiff Wales

Wed 16/9

23:50-14:41

2 stops19h 51m

£569

BostonCardiff

BOS Boston Logan Intl - CWL Cardiff Wales

BOSCWL

Boston Logan Intl

Mon 21/9

17:25-22:50

1 stop24h 25m

Cardiff Wales

Tue 6/10

21:45-21:05

2 stops28h 20m

£570

BostonCardiff

BOS Boston Logan Intl - CWL Cardiff Wales

BOSCWL

Boston Logan Intl

Sun 27/9

21:40-21:45

2 stops19h 05m

Cardiff Wales

Mon 12/10

22:10-16:10

2 stops23h 00m

£587

BostonCardiff

BOS Boston Logan Intl - CWL Cardiff Wales

BOSCWL

Boston Logan Intl

Sun 6/9

21:15-21:45

1 stop19h 30m

Cardiff Wales

Wed 16/9

23:50-18:35

2 stops23h 45m

£608

BostonCardiff

BOS Boston Logan Intl - CWL Cardiff Wales

BOSCWL

Boston Logan Intl

Mon 7/9

20:50-22:50

2 stops21h 00m

Cardiff Wales

Fri 18/9

22:45-20:20

3 stops26h 35m

£661

BostonCardiff

BOS Boston Logan Intl - CWL Cardiff Wales

BOSCWL

Boston Logan Intl

Mon 28/9

21:15-22:50

1 stop20h 35m

Cardiff Wales

Mon 12/10

22:10-16:40

2 stops23h 30m

£668

BostonCardiff

BOS Boston Logan Intl - CWL Cardiff Wales

BOSCWL

Boston Logan Intl

Sun 6/9

21:15-21:45

1 stop19h 30m

Cardiff Wales

Fri 18/9

17:45-20:20

2 stops31h 35m

£674

BostonCardiff

BOS Boston Logan Intl - CWL Cardiff Wales

BOSCWL

Boston Logan Intl

Mon 7/9

21:15-22:50

1 stop20h 35m

Cardiff Wales

Fri 18/9

17:45-20:20

2 stops31h 35m

£681

Flights are sorted by cheapest return flights first.

Showing 1-10 of 18 resultsSorted by cheapest first
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See travel insights to Cardiff from

How to get the cheapest flight ticket from Massachusetts to Cardiff

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Massachusetts to Cardiff Wales?

Delta is the most popular carrier operating from Massachusetts to Cardiff Wales

Cheap Massachusetts to Cardiff flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Massachusetts to Cardiff

Fastest flight time

9h 25m

Direct flights

None
The fastest flight from Massachusetts to Cardiff takes 9h 25m
There are no direct flights from Massachusetts to Cardiff. There are no popular flight routes from Massachusetts to Cardiff.
Search flight deals

Frequently asked questions about flying from Massachusetts to Cardiff

  • When did momondo last update prices for flights from Massachusetts to Cardiff Wales Airport?

    Prices for flights from Massachusetts to Cardiff Wales Airport are updated daily.

  • How old do you have to be to fly from Massachusetts to Cardiff Wales Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Massachusetts to Cardiff Wales Airport.

  • What documentation or ID do you need to fly to Cardiff Wales Airport?

    The travel and health documents required for your trip to Cardiff Wales Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Cardiff Wales Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Travelling to a place near Cardiff?

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

Why use momondo?

Why should I use momondo to find a flight deal from Massachusetts to Cardiff?

Finding the right flight to Cardiff from Massachusetts is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Cardiff quick and easy, saving you time and money.

Can I find flights from Massachusetts to Cardiff with flexible booking policies on momondo?

momondo does allow users to show only those flights to Cardiff from Massachusetts which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Massachusetts to Cardiff?

Once you have performed a search for Massachusetts to Cardiff flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Massachusetts to Cardiff right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Cardiff, momondo offers a useful price alert feature which will track prices for flights to Cardiff from Massachusetts and alert you when they change.

An easier way to manage your Cardiff trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
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Find better results for your trip to the United Kingdom

Airports servicing Wales

Holyhead Anglesey Airport