How long does it take to fly to Cardiff?

If you’re flying from a popular airport in Massachusetts, such as Boston or Provincetown, and flying into Cardiff, then you can expect flight times to average 9h 35m and 14h 58m, respectively.

What airlines fly to Cardiff?

Aer Lingus, KLM and Delta are the top three most popular airlines that fly to Cardiff from Massachusetts according to our data. Aer Lingus is the first choice among our users, with 58% of people opting to fly with this airline when traveling to Cardiff. Keep in mind that there are 3 different airlines that fly to Cardiff on a routine basis, so you have a few additional options to choose from.

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?

As of September 2025, there are 2 operators available to choose from 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.

$717 Cheap Flights from Massachusetts to Cardiff in 2025/26

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Find the cheapest flights from Massachusetts to Cardiff

Round-trip

One-way

Last minute

Cheap round-trip flights

1:00 pm - 8:10 pmBOS-CWL

26h 10m3 stops

8:05 pm - 9:27 pmCWL-BOS

30h 22m3 stops

$717Multiple Airlines

Find Deal

Sat, Nov 8 - Sat, Nov 15

8:50 pm - 4:45 pmBOS-CWL

14h 55m2 stops

9:50 am - 4:30 pmCWL-BOS

11h 40m1 stop

$757KLM

Find Deal

Sun, Sep 28 - Tue, Sep 30

11:35 am - 8:10 pmBOS-CWL

27h 35m2 stops

8:05 pm - 2:35 pmCWL-BOS

23h 30m2 stops

$761Multiple Airlines

Find Deal

Sat, Nov 8 - Sat, Nov 15

8:50 pm - 4:45 pmBOS-CWL

14h 55m2 stops

9:50 am - 7:42 pmCWL-BOS

14h 52m2 stops

$768KLM

Find Deal

Sun, Sep 28 - Tue, Sep 30

8:50 pm - 4:45 pmBOS-CWL

14h 55m1 stop

10:20 am - 1:30 amCWL-BOS

20h 10m2 stops

$784Multiple Airlines

Find Deal

Sun, Nov 9 - Sun, Nov 16

5:10 pm - 8:55 pmBOS-CWL

22h 45m1 stop

8:05 pm - 8:10 pmCWL-BOS

29h 05m2 stops

$792Multiple Airlines

Find Deal

Sat, Nov 8 - Sat, Nov 15

7:10 pm - 9:50 amBOS-CWL

9h 40m1 stop

5:15 pm - 1:20 pmCWL-BOS

25h 05m1 stop

$793KLM

Find Deal

Thu, Nov 27 - Mon, Dec 1

6:45 pm - 9:15 amBOS-CWL

9h 30m1 stop

9:50 am - 4:30 pmCWL-BOS

11h 40m1 stop

$808KLM

Find Deal

Sun, Sep 28 - Tue, Sep 30

9:50 pm - 4:45 pmBOS-CWL

14h 55m1 stop

10:20 am - 8:20 amCWL-BOS

26h 00m2 stops

$844Virgin Atlantic

Find Deal

Sun, Oct 26 - Sat, Nov 1

12:45 pm - 9:50 amBOS-CWL

16h 05m2 stops

10:20 am - 10:25 pmCWL-BOS

17h 05m2 stops

$866Delta

Find Deal

Sun, Nov 9 - Sun, Nov 16

KLM flights from Massachusetts to Cardiff

Our best KLM deals on Massachusetts to Cardiff flight tickets

KLM

Oct 5

BOS8:15 pmBoston Logan Intl

32h 00m

1 stop

CWL9:15 amCardiff Wales

Oct 21

CWL9:50 amCardiff Wales

13h 30m

1 stop

BOS6:20 pmBoston Logan Intl

$746

Find similar

KLM

Oct 5

BOS4:50 pmBoston Logan Intl

11h 25m

1 stop

CWL9:15 amCardiff Wales

Oct 21

CWL9:50 amCardiff Wales

15h 11m

2 stops

BOS8:01 pmBoston Logan Intl

$752

Find similar

KLM

Sep 28

BOS8:50 pmBoston Logan Intl

14h 55m

2 stops

CWL4:45 pmCardiff Wales

Sep 30

CWL9:50 amCardiff Wales

11h 40m

1 stop

BOS4:30 pmBoston Logan Intl

$757

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BostonCardiff

BOS - CWL

BOSCWL

Boston Logan Intl

Sat 11/8

1:00 pm-8:10 pm

3 stops26h 10m

Cardiff Wales

Sat 11/15

8:05 pm-9:27 pm

3 stops30h 22m

$717

BostonCardiff

BOS - CWL

BOSCWL

Boston Logan Intl

Sun 9/28

8:50 pm-4:45 pm

2 stops14h 55m

Cardiff Wales

Tue 9/30

9:50 am-4:30 pm

1 stop11h 40m

$757

BostonCardiff

BOS - CWL

BOSCWL

Boston Logan Intl

Sat 11/8

11:35 am-8:10 pm

2 stops27h 35m

Cardiff Wales

Sat 11/15

8:05 pm-2:35 pm

2 stops23h 30m

$761

BostonCardiff

BOS - CWL

BOSCWL

Boston Logan Intl

Sun 9/28

8:50 pm-4:45 pm

2 stops14h 55m

Cardiff Wales

Tue 9/30

9:50 am-7:42 pm

2 stops14h 52m

$768

BostonCardiff

BOS - CWL

BOSCWL

Boston Logan Intl

Sun 11/9

8:50 pm-4:45 pm

1 stop14h 55m

Cardiff Wales

Sun 11/16

10:20 am-1:30 am

2 stops20h 10m

$784

BostonCardiff

BOS - CWL

BOSCWL

Boston Logan Intl

Sat 11/8

5:10 pm-8:55 pm

1 stop22h 45m

Cardiff Wales

Sat 11/15

8:05 pm-8:10 pm

2 stops29h 05m

$792

BostonCardiff

BOS - CWL

BOSCWL

Boston Logan Intl

Thu 11/27

7:10 pm-9:50 am

1 stop9h 40m

Cardiff Wales

Mon 12/1

5:15 pm-1:20 pm

1 stop25h 05m

$793

BostonCardiff

BOS - CWL

BOSCWL

Boston Logan Intl

Sun 9/28

6:45 pm-9:15 am

1 stop9h 30m

Cardiff Wales

Tue 9/30

9:50 am-4:30 pm

1 stop11h 40m

$808

BostonCardiff

BOS - CWL

BOSCWL

Boston Logan Intl

Sun 10/26

9:50 pm-4:45 pm

1 stop14h 55m

Cardiff Wales

Sat 11/1

10:20 am-8:20 am

2 stops26h 00m

$844

BostonCardiff

BOS - CWL

BOSCWL

Boston Logan Intl

Sun 11/9

12:45 pm-9:50 am

2 stops16h 05m

Cardiff Wales

Sun 11/16

10:20 am-10:25 pm

2 stops17h 05m

$866

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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

Prices

Airlines

Other information

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

Direct flights	None

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?
As of September 2025, there are 2 operators available to choose from 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
KLM	PriceFrom $766	Free Cancellation	Rating 7.8 1,391 reviews		Search KLM flights
Delta	PriceFrom $793	Free Cancellation	Rating 7.9 7,973 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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Cheap flights from Massachusetts to Cardiff from $717

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Massachusetts to Cardiff departing on 11/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Filter for what you want

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KLM flights from Massachusetts to Cardiff

Our best KLM deals on Massachusetts to Cardiff flight tickets

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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 day to depart on your flight to Cardiff?

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

What airlines fly to Cardiff?

How long does it take to fly to Cardiff?

If you’re flying from a popular airport in Massachusetts, such as Boston or Provincetown, and flying into Cardiff, then you can expect flight times to average 9h 35m and 14h 58m, respectively.

Cheap Massachusetts to Cardiff flight deals and tips

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

Direct flights

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

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?

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

Best airlines flying from Massachusetts to Cardiff

Compare and see reviews for airlines that fly from Massachusetts to Cardiff with momondo

Why use momondo?

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

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

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

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

An easier way to manage your Cardiff trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United Kingdom

Fly your favorite airline to Cardiff

Airlines are sorted and displayed according to clicks in the past 7 days on momondo