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

Confirm your travel details to search for the latest offers for flights from Cardiff to Boston . While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

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

Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.

How does momondo find its flight prices?

We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

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

Prices for flights from Cardiff Wales Airport to Boston Logan Intl Airport are updated daily.

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Cardiff Wales Airport to Boston Logan Intl Airport.

What documentation or ID do you need to fly to Boston Logan Intl Airport?

The travel and health documents you'll need for your trip to Boston Logan Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Boston Logan Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$657 Cheap Flights from Cardiff to Boston in 2026

Find the cheapest flights from Cardiff to Boston

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:45 am - 2:55 pmCWL Cardiff Wales-BOS Boston Logan Intl

12h 10m1 stop Dublin

5:25 pm - 6:55 amBOS Boston Logan Intl-CWL Cardiff Wales

8h 30m1 stop Dublin

$657Multiple Airlines

Fri, Oct 2 - Fri, Oct 9

9:00 am - 9:05 pmCWL Cardiff Wales-BOS Boston Logan Intl

17h 05m2 stops Malaga Barcelona-El Prat

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

9h 55m1 stop Dublin

$658Multiple Airlines

Thu, Oct 22 - Sun, Nov 1

9:50 am - 4:36 pmCWL Cardiff Wales-BOS Boston Logan Intl

11h 46m1 stop Amsterdam Schiphol

4:45 pm - 4:45 pmBOS Boston Logan Intl-CWL Cardiff Wales

19h 00m1 stop Amsterdam Schiphol

$781Air France

Thu, Oct 15 - Thu, Oct 22

5:15 pm - 1:15 pmCWL Cardiff Wales-BOS Boston Logan Intl

25h 00m1 stop Amsterdam Schiphol

4:45 pm - 4:45 pmBOS Boston Logan Intl-CWL Cardiff Wales

19h 00m1 stop Amsterdam Schiphol

$784Air France

Tue, Oct 13 - Tue, Oct 20

5:15 pm - 4:35 pmCWL Cardiff Wales-BOS Boston Logan Intl

28h 20m1 stop Amsterdam Schiphol

4:45 pm - 9:15 amBOS Boston Logan Intl-CWL Cardiff Wales

11h 30m1 stop Amsterdam Schiphol

$785KLM

Sun, Sep 27 - Sun, Oct 4

5:15 pm - 4:36 pmCWL Cardiff Wales-BOS Boston Logan Intl

28h 21m1 stop Amsterdam Schiphol

1:35 pm - 9:15 amBOS Boston Logan Intl-CWL Cardiff Wales

14h 40m2 stops New York John F Kennedy Intl Amsterdam Schiphol

$794Multiple Airlines

Tue, Oct 13 - Tue, Oct 20

9:50 am - 11:08 pmCWL Cardiff Wales-BOS Boston Logan Intl

18h 18m2 stops Amsterdam Schiphol New York John F Kennedy Intl

6:55 pm - 9:15 amBOS Boston Logan Intl-CWL Cardiff Wales

9h 20m1 stop Amsterdam Schiphol

$800Multiple Airlines

Thu, Oct 15 - Thu, Oct 22

9:45 am - 4:35 pmCWL Cardiff Wales-BOS Boston Logan Intl

11h 50m1 stop Amsterdam Schiphol

8:25 pm - 4:45 pmBOS Boston Logan Intl-CWL Cardiff Wales

15h 20m1 stop Amsterdam Schiphol

$804Delta

Wed, Sep 16 - Wed, Oct 7

9:45 am - 4:36 pmCWL Cardiff Wales-BOS Boston Logan Intl

11h 51m1 stop Amsterdam Schiphol

1:35 pm - 9:15 amBOS Boston Logan Intl-CWL Cardiff Wales

14h 40m2 stops New York John F Kennedy Intl Amsterdam Schiphol

$804Delta

Wed, Oct 14 - Wed, Oct 21

9:45 am - 4:36 pmCWL Cardiff Wales-BOS Boston Logan Intl

11h 51m1 stop Amsterdam Schiphol

4:45 pm - 9:15 amBOS Boston Logan Intl-CWL Cardiff Wales

11h 30m1 stop Amsterdam Schiphol

$804Delta

Wed, Oct 14 - Wed, Oct 21

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KLM flights from Cardiff to Boston

Our best KLM deals on Cardiff to Boston flight tickets

KLM

Sep 27

CWL5:15 pmCardiff Wales

28h 20m

1 stop

BOS4:35 pmBoston Logan Intl

Oct 4

BOS4:45 pmBoston Logan Intl

11h 30m

1 stop

CWL9:15 amCardiff Wales

$785

KLM

Sep 10

CWL9:45 amCardiff Wales

11h 50m

1 stop

BOS4:35 pmBoston Logan Intl

Sep 14

BOS1:32 pmBoston Logan Intl

14h 43m

2 stops

CWL9:15 amCardiff Wales

$792

KLM

Sep 10

CWL9:45 amCardiff Wales

18h 25m

2 stops

BOS11:10 pmBoston Logan Intl

Sep 14

BOS1:32 pmBoston Logan Intl

14h 43m

2 stops

CWL9:15 amCardiff Wales

$800

Delta flights from Cardiff to Boston

Our best Delta deals on Cardiff to Boston flight tickets

Delta

Oct 14

CWL9:45 amCardiff Wales

11h 51m

1 stop

BOS4:36 pmBoston Logan Intl

Oct 21

BOS1:35 pmBoston Logan Intl

14h 40m

2 stops

CWL9:15 amCardiff Wales

$804

Delta

Oct 15

CWL9:50 amCardiff Wales

18h 18m

2 stops

BOS11:08 pmBoston Logan Intl

Oct 22

BOS12:10 pmBoston Logan Intl

16h 05m

2 stops

CWL9:15 amCardiff Wales

$819

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

CardiffBoston

CWL Cardiff Wales - BOS Boston Logan Intl

CWLBOS

Cardiff Wales

Fri 10/2

7:45 am-2:55 pm

1 stop12h 10m

Boston Logan Intl

Fri 10/9

5:25 pm-6:55 am

1 stop8h 30m

$657

CardiffBoston

CWL Cardiff Wales - BOS Boston Logan Intl

CWLBOS

Cardiff Wales

Thu 10/22

9:00 am-9:05 pm

2 stops17h 05m

Boston Logan Intl

Sun 11/1

5:15 pm-8:10 am

1 stop9h 55m

$658

CardiffBoston

CWL Cardiff Wales - BOS Boston Logan Intl

CWLBOS

Cardiff Wales

Thu 10/15

9:50 am-4:36 pm

1 stop11h 46m

Boston Logan Intl

Thu 10/22

4:45 pm-4:45 pm

1 stop19h 00m

$781

CardiffBoston

CWL Cardiff Wales - BOS Boston Logan Intl

CWLBOS

Cardiff Wales

Tue 10/13

5:15 pm-1:15 pm

1 stop25h 00m

Boston Logan Intl

Tue 10/20

4:45 pm-4:45 pm

1 stop19h 00m

$784

CardiffBoston

CWL Cardiff Wales - BOS Boston Logan Intl

CWLBOS

Cardiff Wales

Sun 9/27

5:15 pm-4:35 pm

1 stop28h 20m

Boston Logan Intl

Sun 10/4

4:45 pm-9:15 am

1 stop11h 30m

$785

CardiffBoston

CWL Cardiff Wales - BOS Boston Logan Intl

CWLBOS

Cardiff Wales

Tue 10/13

5:15 pm-4:36 pm

1 stop28h 21m

Boston Logan Intl

Tue 10/20

1:35 pm-9:15 am

2 stops14h 40m

$794

CardiffBoston

CWL Cardiff Wales - BOS Boston Logan Intl

CWLBOS

Cardiff Wales

Thu 10/15

9:50 am-11:08 pm

2 stops18h 18m

Boston Logan Intl

Thu 10/22

6:55 pm-9:15 am

1 stop9h 20m

$800

CardiffBoston

CWL Cardiff Wales - BOS Boston Logan Intl

CWLBOS

Cardiff Wales

Wed 9/16

9:45 am-4:35 pm

1 stop11h 50m

Boston Logan Intl

Wed 10/7

8:25 pm-4:45 pm

1 stop15h 20m

$804

CardiffBoston

CWL Cardiff Wales - BOS Boston Logan Intl

CWLBOS

Cardiff Wales

Wed 10/14

9:45 am-4:36 pm

1 stop11h 51m

Boston Logan Intl

Wed 10/21

1:35 pm-9:15 am

2 stops14h 40m

$804

CardiffBoston

CWL Cardiff Wales - BOS Boston Logan Intl

CWLBOS

Cardiff Wales

Wed 10/14

9:45 am-4:36 pm

1 stop11h 51m

Boston Logan Intl

Wed 10/21

4:45 pm-9:15 am

1 stop11h 30m

$804

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

When to book flights from Cardiff to Boston

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

Estimated round-trip price

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

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

Best Price Found	$657
Fastest flight time	11h 50m
Direct flights	None

The best flight deal from Cardiff to Boston found on momondo in the last 72 hours is $657

The fastest flight from Cardiff to Boston takes 11h 50m

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

Search flight deals

Frequently asked questions about flying from Cardiff to Boston

How far is Cardiff Wales to Boston Logan Intl by plane?
The distance between Cardiff Wales and Boston Logan Intl is about 3144.0 mi. Flights usually cover this in 11h 50m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Cardiff Wales Airport to Boston Logan Intl Airport?
Prices for flights from Cardiff Wales Airport to Boston Logan Intl Airport are updated daily.
How old do you have to be to fly from Cardiff Wales Airport to Boston Logan Intl Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Cardiff Wales Airport to Boston Logan Intl Airport.
What documentation or ID do you need to fly to Boston Logan Intl Airport?
The travel and health documents you'll need for your trip to Boston Logan Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Boston Logan Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Frequently asked questions about flying from Cardiff to Boston

How do I get Price Alerts for flights from Cardiff to Boston?
Confirm your travel details to search for the latest offers for flights from Cardiff to Boston. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.
How can I save money on flights from Cardiff to Boston with momondo?
Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.
How does momondo find its flight prices?
We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

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Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Cardiff to Boston. Millions of users trust and use momondo every year so you are in good hands.

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

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

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Boston from Cardiff.

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

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