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Cheap flights from Massachusetts to Cardiff from $295

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 5/1. 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
0 bags

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Find the cheapest flights from Massachusetts to Cardiff

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
9:15 pm - 11:05 pm
BOS
-
CWL
20h 50m1 stop
Multiple Airlines Logo
6:25 pm - 8:55 pm
CWL
-
BOS
31h 30m2 stops
$694Multiple Airlines
Sun, Jan 25 - Sun, Feb 1
Delta Logo
8:50 pm - 4:45 pm
BOS
-
CWL
14h 55m1 stop
Delta Logo
10:15 am - 6:55 pm
CWL
-
BOS
13h 40m1 stop
$733Delta
Sun, Jan 25 - Sun, Feb 1
Multiple Airlines Logo
10:10 pm - 11:05 pm
BOS
-
CWL
19h 55m2 stops
Multiple Airlines Logo
9:20 pm - 2:35 pm
CWL
-
BOS
22h 15m2 stops
$738Multiple Airlines
Sun, Jan 25 - Sun, Feb 1
Virgin Atlantic Logo
7:10 pm - 9:50 am
BOS
-
CWL
9h 40m1 stop
Virgin Atlantic Logo
10:20 am - 6:55 pm
CWL
-
BOS
13h 35m1 stop
$812Virgin Atlantic
Mon, Feb 9 - Fri, Feb 13
Virgin Atlantic Logo
1:00 pm - 9:50 am
BOS
-
CWL
15h 50m2 stops
Virgin Atlantic Logo
10:20 am - 6:55 pm
CWL
-
BOS
13h 35m1 stop
$816Virgin Atlantic
Mon, Feb 9 - Fri, Feb 13
Multiple Airlines Logo
8:10 pm - 9:50 am
BOS
-
CWL
9h 40m1 stop
Multiple Airlines Logo
10:20 am - 11:53 pm
CWL
-
BOS
17h 33m2 stops
$822Multiple Airlines
Mon, Mar 16 - Thu, Mar 19
Virgin Atlantic Logo
10:05 am - 9:50 am
BOS
-
CWL
18h 45m2 stops
Virgin Atlantic Logo
10:20 am - 10:48 pm
CWL
-
BOS
17h 28m2 stops
$826Virgin Atlantic
Mon, Feb 9 - Fri, Feb 13
Virgin Atlantic Logo
9:05 am - 9:50 am
BOS
-
CWL
20h 45m2 stops
Virgin Atlantic Logo
10:20 am - 7:15 am
CWL
-
BOS
24h 55m2 stops
$832Virgin Atlantic
Mon, Mar 16 - Thu, Mar 19
Multiple Airlines Logo
6:55 pm - 11:05 pm
BOS
-
CWL
23h 10m3 stops
Multiple Airlines Logo
9:20 pm - 2:35 pm
CWL
-
BOS
22h 15m2 stops
$946Multiple Airlines
Sun, Jan 25 - Sun, Feb 1
Multiple Airlines Logo
7:10 pm - 9:50 am
BOS
-
CWL
9h 40m1 stop
Multiple Airlines Logo
10:20 am - 11:14 pm
CWL
-
BOS
17h 54m2 stops
$1,291Multiple Airlines
Wed, Dec 24 - Wed, Dec 31

Delta flights from Massachusetts to Cardiff

Our best Delta deals on Massachusetts to Cardiff flight tickets
Delta
Jan 25
BOS8:50 pmBoston Logan Intl
14h 55m
1 stop
CWL4:45 pmCardiff Wales
Feb 1
CWL10:15 amCardiff Wales
13h 40m
1 stop
BOS6:55 pmBoston Logan Intl
$733
Find similar
Delta
Jan 13
BOS7:10 pmBoston Logan Intl
9h 40m
1 stop
CWL9:50 amCardiff Wales
Feb 18
CWL10:20 amCardiff Wales
32h 05m
1 stop
BOS1:25 pmBoston Logan Intl
$3,743
Find similar
Delta
Jan 12
BOS7:10 pmBoston Logan Intl
9h 40m
1 stop
CWL9:50 amCardiff Wales
Feb 18
CWL10:20 amCardiff Wales
13h 35m
1 stop
BOS6:55 pmBoston Logan Intl
$3,893
Find similar

Virgin Atlantic flights from Massachusetts to Cardiff

Our best Virgin Atlantic deals on Massachusetts to Cardiff flight tickets
Virgin Atlantic
Feb 9
BOS7:10 pmBoston Logan Intl
9h 40m
1 stop
CWL9:50 amCardiff Wales
Feb 13
CWL10:20 amCardiff Wales
13h 35m
1 stop
BOS6:55 pmBoston Logan Intl
$812
Find similar
Virgin Atlantic
Feb 9
BOS1:00 pmBoston Logan Intl
15h 50m
2 stops
CWL9:50 amCardiff Wales
Feb 13
CWL10:20 amCardiff Wales
13h 35m
1 stop
BOS6:55 pmBoston Logan Intl
$816
Find similar
Virgin Atlantic
Feb 9
BOS10:05 amBoston Logan Intl
18h 45m
2 stops
CWL9:50 amCardiff Wales
Feb 13
CWL10:20 amCardiff Wales
17h 28m
2 stops
BOS10:48 pmBoston Logan Intl
$826
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated December 11, 2025.
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

BostonCardiff

BOS - CWL

BOSCWL

Boston Logan Intl

Sun 1/25

9:15 pm-11:05 pm

1 stop20h 50m

Cardiff Wales

Sun 2/1

6:25 pm-8:55 pm

2 stops31h 30m

$694

BostonCardiff

BOS - CWL

BOSCWL

Boston Logan Intl

Sun 1/25

8:50 pm-4:45 pm

1 stop14h 55m

Cardiff Wales

Sun 2/1

10:15 am-6:55 pm

1 stop13h 40m

$733

BostonCardiff

BOS - CWL

BOSCWL

Boston Logan Intl

Sun 1/25

10:10 pm-11:05 pm

2 stops19h 55m

Cardiff Wales

Sun 2/1

9:20 pm-2:35 pm

2 stops22h 15m

$738

BostonCardiff

BOS - CWL

BOSCWL

Boston Logan Intl

Mon 2/9

7:10 pm-9:50 am

1 stop9h 40m

Cardiff Wales

Fri 2/13

10:20 am-6:55 pm

1 stop13h 35m

$812

BostonCardiff

BOS - CWL

BOSCWL

Boston Logan Intl

Mon 2/9

1:00 pm-9:50 am

2 stops15h 50m

Cardiff Wales

Fri 2/13

10:20 am-6:55 pm

1 stop13h 35m

$816

BostonCardiff

BOS - CWL

BOSCWL

Boston Logan Intl

Mon 3/16

8:10 pm-9:50 am

1 stop9h 40m

Cardiff Wales

Thu 3/19

10:20 am-11:53 pm

2 stops17h 33m

$822

BostonCardiff

BOS - CWL

BOSCWL

Boston Logan Intl

Mon 2/9

10:05 am-9:50 am

2 stops18h 45m

Cardiff Wales

Fri 2/13

10:20 am-10:48 pm

2 stops17h 28m

$826

BostonCardiff

BOS - CWL

BOSCWL

Boston Logan Intl

Mon 3/16

9:05 am-9:50 am

2 stops20h 45m

Cardiff Wales

Thu 3/19

10:20 am-7:15 am

2 stops24h 55m

$832

BostonCardiff

BOS - CWL

BOSCWL

Boston Logan Intl

Sun 1/25

6:55 pm-11:05 pm

3 stops23h 10m

Cardiff Wales

Sun 2/1

9:20 pm-2:35 pm

2 stops22h 15m

$946

BostonCardiff

BOS - CWL

BOSCWL

Boston Logan Intl

Wed 12/24

7:10 pm-9:50 am

1 stop9h 40m

Cardiff Wales

Wed 12/31

10:20 am-11:14 pm

2 stops17h 54m

$1,291

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 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 month to fly to Cardiff?

The month of January is, on average, the cheapest month to fly to Cardiff from Massachusetts, with most prices found around $735. If you aren’t able to travel to Cardiff during the month of January, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $774.

What is the cheapest day to depart on your flight to Cardiff?

The cheapest day to depart on your flight to Cardiff is on a Tuesday when prices can be found for as low as $830. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around $1,427. These prices are subject to change though, so be sure to set up a Price Alert for flights to Cardiff.

What is the cheapest time of day to depart on your flight to Cardiff?

Flying to Cardiff from Massachusetts in the evening is the least expensive time of day to depart. momondo users have found prices as low as $940 when looking at flights departing in the evening. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $986 on average. Flights to Cardiff from Massachusetts in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

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 40m

Direct flights

None
The fastest flight from Massachusetts to Cardiff takes 9h 40m
There are no direct flights from Massachusetts to Cardiff. There are no popular flight routes from Massachusetts to Cardiff.
Search flight deals

  • 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 many operators does momondo search for flights from Massachusetts to Cardiff Wales Airport?

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Massachusetts to Cardiff Wales Airport.

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

    The required travel and health documents for your Cardiff Wales Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Cardiff Wales Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Massachusetts to Cardiff

Compare and see reviews for airlines that fly from Massachusetts to Cardiff with momondo
Airline
Rating
Free Cancellation
Price
KLMPriceFrom $644Free CancellationRating
7.7
1,432 reviews
Search KLM flights
DeltaPriceFrom $791Free CancellationRating
7.9
8,008 reviews
Search Delta flights

Why use momondo?

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

It is quick and easy to find Massachusetts to Cardiff flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Cardiff that suits you.

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

All flight searches from Massachusetts to Cardiff on momondo can be filtered to show those which offer flexible booking policies.

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?

Yes. momondo can track prices for Massachusetts to Cardiff flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Airlines are sorted and displayed according to clicks in the past 7 days on momondo
Aer Lingus
KLM
Delta