How do I get Price Alerts for flights from Boston to Cardiff?

You can take advantage of momondo’s Price Alerts by first searching for your flights to Boston from Cardiff . Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.

How can I save money on flights from Boston to Cardiff with momondo?

Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore” . Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.

How does momondo find its flight prices?

momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

When did momondo last update prices for flights from Boston Logan Intl Airport to Cardiff Wales Airport?

Prices for flights from Boston Logan Intl Airport to Cardiff Wales Airport are refreshed on a daily basis.

How old do you have to be to fly from Boston Logan Intl Airport to Cardiff Wales Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Boston Logan Intl Airport to Cardiff Wales Airport.

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

The necessary travel and health documents for your Cardiff Wales Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$762 Cheap Flights from Boston to Cardiff in 2026/27

Find the cheapest flights from Boston to Cardiff

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

9:10 pm - 1:00 pmBOS Boston Logan Intl-CWL Cardiff Wales

10h 50m1 stop Dublin

5:30 pm - 6:25 pmCWL Cardiff Wales-BOS Boston Logan Intl

29h 55m2 stops Alicante Madrid Barajas

$762Multiple Airlines

Wed, Jan 13 - Thu, Jan 21

5:15 pm - 8:10 amBOS Boston Logan Intl-CWL Cardiff Wales

9h 55m1 stop Dublin

5:30 pm - 6:25 pmCWL Cardiff Wales-BOS Boston Logan Intl

29h 55m2 stops Alicante Madrid Barajas

$765Multiple Airlines

Sun, Jan 10 - Thu, Jan 21

9:10 pm - 1:55 pmBOS Boston Logan Intl-CWL Cardiff Wales

11h 45m1 stop Dublin

5:30 pm - 6:25 pmCWL Cardiff Wales-BOS Boston Logan Intl

29h 55m2 stops Alicante Madrid Barajas

$786Multiple Airlines

Sat, Jan 9 - Thu, Jan 21

9:10 pm - 3:40 pmBOS Boston Logan Intl-CWL Cardiff Wales

13h 30m1 stop Dublin

8:35 am - 7:15 pmCWL Cardiff Wales-BOS Boston Logan Intl

15h 40m1 stop Dublin

$806Multiple Airlines

Thu, Jan 7 - Mon, Jan 18

7:50 pm - 1:00 pmBOS Boston Logan Intl-CWL Cardiff Wales

12h 10m2 stops Reykjavik Keflavik Intl Dublin

8:35 am - 7:15 pmCWL Cardiff Wales-BOS Boston Logan Intl

15h 40m1 stop Dublin

$807Multiple Airlines

Wed, Jan 13 - Mon, Jan 18

9:10 pm - 3:40 pmBOS Boston Logan Intl-CWL Cardiff Wales

13h 30m1 stop Dublin

1:25 pm - 7:15 pmCWL Cardiff Wales-BOS Boston Logan Intl

10h 50m1 stop Dublin

$812Multiple Airlines

Thu, Jan 7 - Thu, Jan 21

5:15 pm - 8:10 amBOS Boston Logan Intl-CWL Cardiff Wales

9h 55m1 stop Dublin

5:30 pm - 6:25 pmCWL Cardiff Wales-BOS Boston Logan Intl

29h 55m2 stops Alicante Madrid Barajas

$816Multiple Airlines

Sun, Jan 31 - Thu, Feb 4

5:15 pm - 1:00 pmBOS Boston Logan Intl-CWL Cardiff Wales

14h 45m1 stop Dublin

8:35 am - 2:15 pmCWL Cardiff Wales-BOS Boston Logan Intl

10h 40m1 stop Dublin

$829Multiple Airlines

Wed, Jan 13 - Mon, Jan 18

5:15 pm - 8:10 amBOS Boston Logan Intl-CWL Cardiff Wales

9h 55m1 stop Dublin

2:25 pm - 6:25 pmCWL Cardiff Wales-BOS Boston Logan Intl

33h 00m2 stops Dublin Madrid Barajas

$830Multiple Airlines

Sun, Jan 10 - Sun, Jan 17

7:50 pm - 1:00 pmBOS Boston Logan Intl-CWL Cardiff Wales

12h 10m2 stops Reykjavik Keflavik Intl Dublin

4:05 pm - 2:15 pmCWL Cardiff Wales-BOS Boston Logan Intl

27h 10m1 stop Dublin

$832Multiple Airlines

Wed, Jan 13 - Fri, Jan 22

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KLM flights from Boston to Cardiff

Our best KLM deals on Boston to Cardiff flight tickets

KLM

Jan 10

BOS1:10 pmBoston Logan Intl

15h 40m

2 stops

CWL9:50 amCardiff Wales

Jan 19

CWL10:20 amCardiff Wales

26h 12m

2 stops

BOS7:32 amBoston Logan Intl

$1,165

KLM

Nov 16

BOS7:25 pmBoston Logan Intl

9h 20m

1 stop

CWL9:45 amCardiff Wales

Nov 23

CWL5:30 pmCardiff Wales

25h 43m

1 stop

BOS2:13 pmBoston Logan Intl

$1,340

Delta flights from Boston to Cardiff

Our best Delta deals on Boston to Cardiff flight tickets

Delta

Jan 11

BOS8:55 pmBoston Logan Intl

15h 05m

1 stop

CWL5:00 pmCardiff Wales

Jan 22

CWL10:20 amCardiff Wales

13h 41m

1 stop

BOS7:01 pmBoston Logan Intl

$1,150

Delta

Jan 11

BOS12:40 pmBoston Logan Intl

23h 20m

2 stops

CWL5:00 pmCardiff Wales

Jan 20

CWL10:20 amCardiff Wales

33h 03m

1 stop

BOS2:23 pmBoston Logan Intl

$1,154

Delta

Jan 11

BOS10:45 amBoston Logan Intl

25h 15m

2 stops

CWL5:00 pmCardiff Wales

Jan 22

CWL10:20 amCardiff Wales

13h 41m

1 stop

BOS7:01 pmBoston Logan Intl

$1,155

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonCardiff

BOS Boston Logan Intl - CWL Cardiff Wales

BOSCWL

Boston Logan Intl

Wed 1/13

9:10 pm-1:00 pm

1 stop10h 50m

Cardiff Wales

Thu 1/21

5:30 pm-6:25 pm

2 stops29h 55m

$762

BostonCardiff

BOS Boston Logan Intl - CWL Cardiff Wales

BOSCWL

Boston Logan Intl

Sun 1/10

5:15 pm-8:10 am

1 stop9h 55m

Cardiff Wales

Thu 1/21

5:30 pm-6:25 pm

2 stops29h 55m

$765

BostonCardiff

BOS Boston Logan Intl - CWL Cardiff Wales

BOSCWL

Boston Logan Intl

Sat 1/9

9:10 pm-1:55 pm

1 stop11h 45m

Cardiff Wales

Thu 1/21

5:30 pm-6:25 pm

2 stops29h 55m

$786

BostonCardiff

BOS Boston Logan Intl - CWL Cardiff Wales

BOSCWL

Boston Logan Intl

Thu 1/7

9:10 pm-3:40 pm

1 stop13h 30m

Cardiff Wales

Mon 1/18

8:35 am-7:15 pm

1 stop15h 40m

$806

BostonCardiff

BOS Boston Logan Intl - CWL Cardiff Wales

BOSCWL

Boston Logan Intl

Wed 1/13

7:50 pm-1:00 pm

2 stops12h 10m

Cardiff Wales

Mon 1/18

8:35 am-7:15 pm

1 stop15h 40m

$807

Quickest round-trip

BostonCardiff

BOS Boston Logan Intl - CWL Cardiff Wales

BOSCWL

Boston Logan Intl

Thu 1/7

9:10 pm-3:40 pm

1 stop13h 30m

Cardiff Wales

Thu 1/21

1:25 pm-7:15 pm

1 stop10h 50m

$812

BostonCardiff

BOS Boston Logan Intl - CWL Cardiff Wales

BOSCWL

Boston Logan Intl

Sun 1/31

5:15 pm-8:10 am

1 stop9h 55m

Cardiff Wales

Thu 2/4

5:30 pm-6:25 pm

2 stops29h 55m

$816

BostonCardiff

BOS Boston Logan Intl - CWL Cardiff Wales

BOSCWL

Boston Logan Intl

Wed 1/13

5:15 pm-1:00 pm

1 stop14h 45m

Cardiff Wales

Mon 1/18

8:35 am-2:15 pm

1 stop10h 40m

$829

BostonCardiff

BOS Boston Logan Intl - CWL Cardiff Wales

BOSCWL

Boston Logan Intl

Sun 1/10

5:15 pm-8:10 am

1 stop9h 55m

Cardiff Wales

Sun 1/17

2:25 pm-6:25 pm

2 stops33h 00m

$830

BostonCardiff

BOS Boston Logan Intl - CWL Cardiff Wales

BOSCWL

Boston Logan Intl

Wed 1/13

7:50 pm-1:00 pm

2 stops12h 10m

Cardiff Wales

Fri 1/22

4:05 pm-2:15 pm

1 stop27h 10m

$832

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

When to book flights from Boston to Cardiff

Are you open to changing your travel dates? Check out the ideal times to fly from Boston to Cardiff according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Boston to Cardiff (BOS to CWL) flight deals and tips

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

Best Price Found	$762
Fastest flight time	9h 20m
Direct flights	None

The best flight deal from Boston to Cardiff found on momondo in the last 72 hours is $762

The fastest flight from Boston to Cardiff takes 9h 20m

There are no direct flights from Boston to Cardiff. There are no popular flight routes from Boston to Cardiff.

Search flight deals

Frequently asked questions about flying from Boston to Cardiff

How far is Boston Logan Intl to Cardiff Wales by plane?
There are 3144.0 mi between Boston Logan Intl and Cardiff Wales. By plane, this route typically takes 9h 20m.
When did momondo last update prices for flights from Boston Logan Intl Airport to Cardiff Wales Airport?
Prices for flights from Boston Logan Intl Airport to Cardiff Wales Airport are refreshed on a daily basis.
How old do you have to be to fly from Boston Logan Intl Airport to Cardiff Wales Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Boston Logan Intl Airport to Cardiff Wales Airport.
What documentation or ID do you need to fly to Cardiff Wales Airport?
The necessary travel and health documents for your Cardiff Wales Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Frequently asked questions about flying from Boston to Cardiff

How do I get Price Alerts for flights from Boston to Cardiff?
You can take advantage of momondo’s Price Alerts by first searching for your flights to Boston from Cardiff. Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.
How can I save money on flights from Boston to Cardiff with momondo?
Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.
How does momondo find its flight prices?
momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

Bridgend

Why use momondo?

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

Finding the right flight to Cardiff from Boston 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 Boston to Cardiff with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Boston to Cardiff flights to just show those with flexible booking policies.

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

momondo helps you find the best flight between Boston and Cardiff by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Of course. momondo tracks the price of Boston to Cardiff flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Cardiff trip

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Cheap flights from Boston to Cardiff from $762

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to Cardiff departing on 1/13. 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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Big names and deals

Big names and deals

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Trusted and free

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KLM flights from Boston to Cardiff

Our best KLM deals on Boston to Cardiff flight tickets

Delta flights from Boston to Cardiff

Our best Delta deals on Boston to Cardiff flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Boston to Cardiff that are best for you.

When to book flights from Boston to Cardiff

Cheap Boston to Cardiff (BOS to CWL) flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Boston to Cardiff

Frequently asked questions about flying from Boston to Cardiff

Traveling to a place near Cardiff?

Why use momondo?

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

Cabin classes currently available on flights to Cardiff

List of cabin classes available on flights landing in Cardiff. Availability may vary depending on flight origin and airline.

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Popular flights according to clicks in the last 7 days on momondo

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