Latest deals
When to book
FAQs
Price Alerts

Cheap flights from Boston to Cardiff from £402

1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Boston to Cardiff

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
15:10 - 13:00BOS  Boston Logan Intl-CWL Cardiff Wales
16h 50m2 stops Toronto Pearson Intl Dublin
Multiple Airlines Logo
08:35 - 20:20CWL  Cardiff Wales-BOS Boston Logan Intl
16h 45m2 stops Dublin Zurich
£402Multiple Airlines
Wed, 11 Nov - Mon, 16 Nov
Multiple Airlines Logo
17:25 - 07:20BOS  Boston Logan Intl-CWL Cardiff Wales
8h 55m1 stop Dublin
Multiple Airlines Logo
23:50 - 14:55CWL  Cardiff Wales-BOS Boston Logan Intl
20h 05m1 stop Dublin
£432Multiple Airlines
Thu, 15 Oct - Wed, 21 Oct
Multiple Airlines Logo
17:40 - 11:50BOS  Boston Logan Intl-CWL Cardiff Wales
37h 10m2 stops Madrid Barajas Alicante
Multiple Airlines Logo
21:10 - 19:50CWL  Cardiff Wales-BOS Boston Logan Intl
27h 40m2 stops Alicante Madrid Barajas
£539Multiple Airlines
Thu, 15 Oct - Wed, 21 Oct
Multiple Airlines Logo
16:10 - 13:00BOS  Boston Logan Intl-CWL Cardiff Wales
15h 50m2 stops New York John F Kennedy Intl Dublin
Multiple Airlines Logo
08:35 - 13:55CWL  Cardiff Wales-BOS Boston Logan Intl
10h 20m1 stop Dublin
£559Multiple Airlines
Wed, 11 Nov - Mon, 16 Nov
Multiple Airlines Logo
21:20 - 13:00BOS  Boston Logan Intl-CWL Cardiff Wales
10h 40m1 stop Dublin
Multiple Airlines Logo
08:35 - 13:55CWL  Cardiff Wales-BOS Boston Logan Intl
10h 20m1 stop Dublin
£569Multiple Airlines
Wed, 11 Nov - Mon, 16 Nov
Multiple Airlines Logo
17:25 - 06:55BOS  Boston Logan Intl-CWL Cardiff Wales
8h 30m1 stop Dublin
Multiple Airlines Logo
14:25 - 20:05CWL  Cardiff Wales-BOS Boston Logan Intl
9h 40m1 stop Dublin
£607Multiple Airlines
Fri, 23 Oct - Sun, 25 Oct
Multiple Airlines Logo
17:25 - 07:20BOS  Boston Logan Intl-CWL Cardiff Wales
8h 55m1 stop Dublin
Multiple Airlines Logo
23:50 - 20:20CWL  Cardiff Wales-BOS Boston Logan Intl
25h 30m2 stops Dublin Lisbon Humberto Delgado
£618Multiple Airlines
Thu, 15 Oct - Wed, 21 Oct
Multiple Airlines Logo
17:25 - 23:25BOS  Boston Logan Intl-CWL Cardiff Wales
25h 00m1 stop Dublin
Multiple Airlines Logo
23:15 - 14:55CWL  Cardiff Wales-BOS Boston Logan Intl
20h 40m1 stop Dublin
£632Multiple Airlines
Tue, 13 Oct - Tue, 20 Oct
Multiple Airlines Logo
20:50 - 23:25BOS  Boston Logan Intl-CWL Cardiff Wales
21h 35m2 stops Reykjavik Keflavik Intl Dublin
Multiple Airlines Logo
23:15 - 14:55CWL  Cardiff Wales-BOS Boston Logan Intl
20h 40m1 stop Dublin
£639Multiple Airlines
Tue, 13 Oct - Tue, 20 Oct
Multiple Airlines Logo
15:55 - 22:20BOS  Boston Logan Intl-CWL Cardiff Wales
25h 25m3 stops Ottawa Toronto Pearson Intl Dublin
Multiple Airlines Logo
23:50 - 20:20CWL  Cardiff Wales-BOS Boston Logan Intl
25h 30m2 stops Dublin Lisbon Humberto Delgado
£650Multiple Airlines
Thu, 15 Oct - Wed, 21 Oct

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Delta flights from Boston to Cardiff

Our best Delta deals on Boston to Cardiff flight tickets
Delta
21 Sept
BOS19:00Boston Logan Intl
16h 45m
1 stop
CWL16:45Cardiff Wales
6 Oct
CWL09:45Cardiff Wales
32h 30m
1 stop
BOS13:15Boston Logan Intl
£714
Delta
13 Oct
BOS18:55Boston Logan Intl
16h 50m
1 stop
CWL16:45Cardiff Wales
28 Oct
CWL10:20Cardiff Wales
13h 41m
1 stop
BOS20:01Boston Logan Intl
£716
Delta
7 Oct
BOS12:10Boston Logan Intl
16h 05m
2 stops
CWL09:15Cardiff Wales
15 Oct
CWL09:50Cardiff Wales
11h 46m
1 stop
BOS16:36Boston Logan Intl
£718

KLM flights from Boston to Cardiff

Our best KLM deals on Boston to Cardiff flight tickets
KLM
16 Nov
BOS19:25Boston Logan Intl
9h 20m
1 stop
CWL09:45Cardiff Wales
23 Nov
CWL17:30Cardiff Wales
25h 43m
1 stop
BOS14:13Boston Logan Intl
£714
KLM
16 Nov
BOS19:25Boston Logan Intl
9h 20m
1 stop
CWL09:45Cardiff Wales
23 Nov
CWL17:30Cardiff Wales
25h 43m
1 stop
BOS14:13Boston Logan Intl
£715
KLM
16 Nov
BOS13:37Boston Logan Intl
15h 08m
2 stops
CWL09:45Cardiff Wales
23 Nov
CWL17:30Cardiff Wales
25h 43m
1 stop
BOS14:13Boston Logan Intl
£719

momondo Fare Finder

 
Use the filters below to find and compare flights from Boston 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

Wed 11/11

15:10-13:00

2 stops16h 50m

Cardiff Wales

Mon 16/11

08:35-20:20

2 stops16h 45m

£402

BostonCardiff

BOS Boston Logan Intl - CWL Cardiff Wales

BOSCWL

Boston Logan Intl

Thu 15/10

17:25-07:20

1 stop8h 55m

Cardiff Wales

Wed 21/10

23:50-14:55

1 stop20h 05m

£432

BostonCardiff

BOS Boston Logan Intl - CWL Cardiff Wales

BOSCWL

Boston Logan Intl

Thu 15/10

17:40-11:50

2 stops37h 10m

Cardiff Wales

Wed 21/10

21:10-19:50

2 stops27h 40m

£539

BostonCardiff

BOS Boston Logan Intl - CWL Cardiff Wales

BOSCWL

Boston Logan Intl

Wed 11/11

16:10-13:00

2 stops15h 50m

Cardiff Wales

Mon 16/11

08:35-13:55

1 stop10h 20m

£559

BostonCardiff

BOS Boston Logan Intl - CWL Cardiff Wales

BOSCWL

Boston Logan Intl

Wed 11/11

21:20-13:00

1 stop10h 40m

Cardiff Wales

Mon 16/11

08:35-13:55

1 stop10h 20m

£569
Fastest return journey

BostonCardiff

BOS Boston Logan Intl - CWL Cardiff Wales

BOSCWL

Boston Logan Intl

Fri 23/10

17:25-06:55

1 stop8h 30m

Cardiff Wales

Sun 25/10

14:25-20:05

1 stop9h 40m

£606

BostonCardiff

BOS Boston Logan Intl - CWL Cardiff Wales

BOSCWL

Boston Logan Intl

Thu 15/10

17:25-07:20

1 stop8h 55m

Cardiff Wales

Wed 21/10

23:50-20:20

2 stops25h 30m

£618

BostonCardiff

BOS Boston Logan Intl - CWL Cardiff Wales

BOSCWL

Boston Logan Intl

Tue 13/10

17:25-23:25

1 stop25h 00m

Cardiff Wales

Tue 20/10

23:15-14:55

1 stop20h 40m

£632

BostonCardiff

BOS Boston Logan Intl - CWL Cardiff Wales

BOSCWL

Boston Logan Intl

Tue 13/10

20:50-23:25

2 stops21h 35m

Cardiff Wales

Tue 20/10

23:15-14:55

1 stop20h 40m

£639

BostonCardiff

BOS Boston Logan Intl - CWL Cardiff Wales

BOSCWL

Boston Logan Intl

Thu 15/10

15:55-22:20

3 stops25h 25m

Cardiff Wales

Wed 21/10

23:50-20:20

2 stops25h 30m

£650

Flights are sorted by cheapest return 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 return 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

£402

Fastest flight time

8h 30m

Direct flights

None
The best flight deal from Boston to Cardiff found on momondo in the last 72 hours is £402
The fastest flight from Boston to Cardiff takes 8h 30m
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?

    Boston Logan Intl and Cardiff Wales are 3144.0 mi apart from one another. Typically, this will take 8h 30m by plane in normal conditions.

  • 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?

    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 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?

    Confirm your travel details to search for the latest offers for flights from Boston to Cardiff. 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 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.

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 Boston to Cardiff?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Boston to Cardiff. momondo saves you time and could save you money on your trip.

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

Flights from Boston to Cardiff with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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?

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 Boston 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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sun 18/10
Sun 25/10
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United Kingdom

Airports servicing Wales

Holyhead Anglesey Airport