What is the cheapest airline that flies from Cardiff Wales to United States?

KLM, British Airways, and Air France are the most popular carriers operating from Cardiff Wales to United States

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

Prices for flights from Cardiff Wales Airport to United States are refreshed on a daily basis.

How old do you have to be to fly from Cardiff Wales Airport to United States?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Cardiff Wales Airport to United States.

What documentation or ID do you need to fly to United States?

The necessary travel and health documents for your United States 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.

$427 Cheap Flights from Cardiff to the United States in 2026

Find the cheapest flights from Cardiff to the United States

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

11:50 pm - 9:05 amCWL Cardiff Wales-BOS Boston Logan Intl

38h 15m2 stops Dublin Toronto Pearson Intl

5:25 pm - 10:25 pmBOS Boston Logan Intl-CWL Cardiff Wales

24h 00m1 stop Dublin

$634Multiple Airlines

Wed, Sep 9 - Wed, Sep 16

7:30 am - 2:00 pmCWL Cardiff Wales-ORD Chicago O'Hare Intl

12h 30m1 stop Dublin

9:00 pm - 9:20 pmORD Chicago O'Hare Intl-CWL Cardiff Wales

18h 20m1 stop Dublin

$700Multiple Airlines

Sat, Sep 26 - Sat, Oct 3

10:50 pm - 6:55 pmCWL Cardiff Wales-JFK New York John F Kennedy Intl

25h 05m2 stops Dublin Madrid Barajas

4:55 pm - 7:20 amJFK New York John F Kennedy Intl-CWL Cardiff Wales

9h 25m1 stop Dublin

$704Multiple Airlines

Thu, Sep 24 - Thu, Oct 1

9:45 am - 1:15 pmCWL Cardiff Wales-EWR Newark

32h 30m3 stops Amsterdam Schiphol Dublin Stockholm Arlanda

5:15 pm - 10:25 pmEWR Newark-CWL Cardiff Wales

24h 10m2 stops Kastrup Copenhagen Dublin

$732Multiple Airlines

Thu, Sep 24 - Wed, Sep 30

11:35 am - 6:35 pmCWL Cardiff Wales-BOS Boston Logan Intl

12h 00m1 stop Toronto Pearson Intl

8:50 pm - 10:50 pmBOS Boston Logan Intl-CWL Cardiff Wales

21h 00m2 stops Reykjavik Keflavik Intl Dublin

$760Multiple Airlines

Thu, Sep 10 - Mon, Sep 14

11:50 pm - 6:50 pmCWL Cardiff Wales-BOS Boston Logan Intl

24h 00m1 stop Dublin

5:25 pm - 10:25 pmBOS Boston Logan Intl-CWL Cardiff Wales

24h 00m1 stop Dublin

$761Multiple Airlines

Wed, Sep 9 - Wed, Sep 16

10:50 pm - 1:40 pmCWL Cardiff Wales-JFK New York John F Kennedy Intl

19h 50m1 stop Dublin

4:55 pm - 9:15 amJFK New York John F Kennedy Intl-CWL Cardiff Wales

35h 20m2 stops Dublin Amsterdam Schiphol

$763Multiple Airlines

Thu, Oct 8 - Wed, Oct 14

11:35 am - 6:35 pmCWL Cardiff Wales-BOS Boston Logan Intl

12h 00m1 stop Toronto Pearson Intl

11:00 pm - 10:50 pmBOS Boston Logan Intl-CWL Cardiff Wales

18h 50m3 stops Reykjavik Keflavik Intl London Gatwick Dublin

$769Multiple Airlines

Thu, Sep 10 - Mon, Sep 14

11:35 am - 6:35 pmCWL Cardiff Wales-BOS Boston Logan Intl

12h 00m1 stop Toronto Pearson Intl

11:00 pm - 10:50 pmBOS Boston Logan Intl-CWL Cardiff Wales

18h 50m3 stops Reykjavik Keflavik Intl London Gatwick Dublin

$772Multiple Airlines

Thu, Sep 10 - Mon, Sep 14

10:50 pm - 3:55 pmCWL Cardiff Wales-JFK New York John F Kennedy Intl

22h 05m2 stops Dublin London Gatwick

9:05 pm - 10:25 pmJFK New York John F Kennedy Intl-CWL Cardiff Wales

20h 20m1 stop Dublin

$786Multiple Airlines

Thu, Sep 24 - Wed, Sep 30

Cheap last minute flights

Enter your travel dates to find the best prices.

2:45 pm - 10:30 pmCWL Cardiff Wales-JFK New York John F Kennedy Intl

36h 45m2 stops Malaga Rome Fiumicino

11:55 pm - 9:45 pmJFK New York John F Kennedy Intl-CWL Cardiff Wales

16h 50m1 stop Dublin

$1,222Multiple Airlines

Sun, Aug 16 - Sun, Aug 23

5:40 pm - 3:30 pmCWL Cardiff Wales-EWR Newark

26h 50m2 stops Faro Lisbon Humberto Delgado

6:00 am - 9:45 pmEWR Newark-CWL Cardiff Wales

34h 45m3 stops Montreal Pierre Elliott Trudeau Intl Edinburgh Turnhouse Dublin

$1,405Multiple Airlines

Sun, Aug 16 - Sun, Aug 23

5:15 pm - 10:30 pmCWL Cardiff Wales-JFK New York John F Kennedy Intl

34h 15m2 stops Amsterdam Schiphol Rome Fiumicino

6:20 pm - 9:45 pmJFK New York John F Kennedy Intl-CWL Cardiff Wales

22h 25m2 stops London Gatwick Dublin

$1,418Multiple Airlines

Sun, Aug 16 - Sun, Aug 23

5:15 pm - 10:30 pmCWL Cardiff Wales-JFK New York John F Kennedy Intl

34h 15m2 stops Amsterdam Schiphol Rome Fiumicino

4:40 pm - 9:45 pmJFK New York John F Kennedy Intl-CWL Cardiff Wales

24h 05m3 stops Amsterdam Schiphol Edinburgh Turnhouse Dublin

$1,479Multiple Airlines

Sun, Aug 16 - Sun, Aug 23

5:15 pm - 8:15 pmCWL Cardiff Wales-EWR Newark

32h 00m3 stops Amsterdam Schiphol Berlin Brandenburg Zurich

9:45 pm - 9:15 amEWR Newark-CWL Cardiff Wales

30h 30m3 stops Zurich Berlin Brandenburg Amsterdam Schiphol

$1,480Multiple Airlines

Sun, Aug 16 - Sun, Aug 23

9:50 am - 5:35 pmCWL Cardiff Wales-LAX Los Angeles Los Angeles

39h 45m2 stops Amsterdam Schiphol Houston George Bush Intcntl

4:45 pm - 4:45 pmLAX Los Angeles Los Angeles-CWL Cardiff Wales

16h 00m1 stop Amsterdam Schiphol

$1,527Multiple Airlines

Sat, Aug 15 - Sat, Aug 22

5:35 pm - 5:35 pmCWL Cardiff Wales-LAX Los Angeles Los Angeles

32h 00m2 stops Amsterdam Schiphol Houston George Bush Intcntl

2:19 pm - 4:45 pmLAX Los Angeles Los Angeles-CWL Cardiff Wales

42h 26m2 stops Portland Amsterdam Schiphol

$1,542Multiple Airlines

Sat, Aug 15 - Sat, Aug 22

5:35 pm - 2:45 pmCWL Cardiff Wales-LAX Los Angeles Los Angeles

29h 10m1 stop Amsterdam Schiphol

4:45 pm - 4:45 pmLAX Los Angeles Los Angeles-CWL Cardiff Wales

16h 00m1 stop Amsterdam Schiphol

$1,550Air France

Sat, Aug 15 - Sat, Aug 22

9:50 am - 11:50 amCWL Cardiff Wales-LAX Los Angeles Los Angeles

34h 00m1 stop Amsterdam Schiphol

2:00 pm - 4:45 pmLAX Los Angeles Los Angeles-CWL Cardiff Wales

18h 45m2 stops Paris Charles de Gaulle Amsterdam Schiphol

$1,551Multiple Airlines

Sun, Aug 16 - Mon, Aug 24

9:50 am - 11:50 amCWL Cardiff Wales-LAX Los Angeles Los Angeles

34h 00m1 stop Amsterdam Schiphol

1:50 pm - 4:45 pmLAX Los Angeles Los Angeles-CWL Cardiff Wales

18h 55m1 stop Amsterdam Schiphol

$1,553Air France

Sun, Aug 16 - Mon, Aug 24

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KLM flights from Cardiff to United States

Our best KLM deals on Cardiff to United States flight tickets

KLM

Jan 12

CWL10:20 amCardiff Wales

33h 25m

1 stop

LAX11:45 amLos Angeles Los Angeles

Jan 28

LAX8:30 amLos Angeles Los Angeles

17h 20m

2 stops

CWL9:50 amCardiff Wales

$812

KLM

Jan 12

CWL10:20 amCardiff Wales

33h 25m

1 stop

LAX11:45 amLos Angeles Los Angeles

Jan 28

LAX1:50 pmLos Angeles Los Angeles

19h 10m

1 stop

CWL5:00 pmCardiff Wales

$815

KLM

Sep 10

CWL9:45 amCardiff Wales

11h 50m

1 stop

BOS4:35 pmBoston Logan Intl

Sep 14

BOS9:20 pmBoston Logan Intl

30h 55m

2 stops

CWL9:15 amCardiff Wales

$819

Delta flights from Cardiff to United States

Our best Delta deals on Cardiff to United States flight tickets

Delta

Sep 8

CWL9:45 amCardiff Wales

22h 41m

2 stops

LAX12:26 amLos Angeles Los Angeles

Sep 22

LAX6:10 amLos Angeles Los Angeles

19h 05m

2 stops

CWL9:15 amCardiff Wales

$833

Delta

Sep 14

CWL9:45 amCardiff Wales

20h 25m

2 stops

LAX10:10 pmLos Angeles Los Angeles

Sep 25

LAX4:45 pmLos Angeles Los Angeles

16h 20m

1 stop

CWL5:05 pmCardiff Wales

$863

Delta

Jan 10

CWL10:20 amCardiff Wales

33h 25m

1 stop

LAX11:45 amLos Angeles Los Angeles

Jan 26

LAX5:30 amLos Angeles Los Angeles

20h 20m

2 stops

CWL9:50 amCardiff Wales

$877

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

CardiffBoston

CWL Cardiff Wales - BOS Boston Logan Intl

CWLBOS

Cardiff Wales

Wed 9/9

11:50 pm-9:05 am

2 stops38h 15m

Boston Logan Intl

Wed 9/16

5:25 pm-10:25 pm

1 stop24h 00m

$634

Quickest round-trip

CardiffChicago

CWL Cardiff Wales - ORD Chicago O'Hare Intl

CWLORD

Cardiff Wales

Sat 9/26

7:30 am-2:00 pm

1 stop12h 30m

Chicago O'Hare Intl

Sat 10/3

9:00 pm-9:20 pm

1 stop18h 20m

$700

CardiffNew York

CWL Cardiff Wales - JFK New York John F Kennedy Intl

CWLJFK

Cardiff Wales

Thu 9/24

10:50 pm-6:55 pm

2 stops25h 05m

New York John F Kennedy Intl

Thu 10/1

4:55 pm-7:20 am

1 stop9h 25m

$704

CardiffNewark

CWL Cardiff Wales - EWR Newark

CWLEWR

Cardiff Wales

Thu 9/24

9:45 am-1:15 pm

3 stops32h 30m

Newark

Wed 9/30

5:15 pm-10:25 pm

2 stops24h 10m

$732

CardiffBoston

CWL Cardiff Wales - BOS Boston Logan Intl

CWLBOS

Cardiff Wales

Thu 9/10

11:35 am-6:35 pm

1 stop12h 00m

Boston Logan Intl

Mon 9/14

8:50 pm-10:50 pm

2 stops21h 00m

$760

CardiffBoston

CWL Cardiff Wales - BOS Boston Logan Intl

CWLBOS

Cardiff Wales

Wed 9/9

11:50 pm-6:50 pm

1 stop24h 00m

Boston Logan Intl

Wed 9/16

5:25 pm-10:25 pm

1 stop24h 00m

$761

CardiffNew York

CWL Cardiff Wales - JFK New York John F Kennedy Intl

CWLJFK

Cardiff Wales

Thu 10/8

10:50 pm-1:40 pm

1 stop19h 50m

New York John F Kennedy Intl

Wed 10/14

4:55 pm-9:15 am

2 stops35h 20m

$763

CardiffBoston

CWL Cardiff Wales - BOS Boston Logan Intl

CWLBOS

Cardiff Wales

Thu 9/10

11:35 am-6:35 pm

1 stop12h 00m

Boston Logan Intl

Mon 9/14

11:00 pm-10:50 pm

3 stops18h 50m

$769

CardiffBoston

CWL Cardiff Wales - BOS Boston Logan Intl

CWLBOS

Cardiff Wales

Thu 9/10

11:35 am-6:35 pm

1 stop12h 00m

Boston Logan Intl

Mon 9/14

11:00 pm-10:50 pm

3 stops18h 50m

$772

CardiffNew York

CWL Cardiff Wales - JFK New York John F Kennedy Intl

CWLJFK

Cardiff Wales

Thu 9/24

10:50 pm-3:55 pm

2 stops22h 05m

New York John F Kennedy Intl

Wed 9/30

9:05 pm-10:25 pm

1 stop20h 20m

$786

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Cardiff to United States

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

What is the cheapest month to fly to United States?

In general, January is the cheapest month to fly from Cardiff to United States. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $671. If you aren’t able to travel during the month of January, then book flights to United States from Cardiff during September instead. Flights to United States in September, while not as cheap as those in January, still average around $711.

Can stopping save me money on Cardiff to United States flights?

You could potentially save up to 24% on your flight if you consider stops on a Cardiff to United States flight.

Cheap Cardiff to United States flight deals and tips

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

Fastest flight time	12h 00m
Direct flights	None

The fastest flight from Cardiff to United States takes 12h 00m

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

Search flight deals

Frequently asked questions about flying from Cardiff to the United States

When did momondo last update prices for flights from Cardiff Wales Airport to United States?
Prices for flights from Cardiff Wales Airport to United States are refreshed on a daily basis.
How old do you have to be to fly from Cardiff Wales Airport to United States?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Cardiff Wales Airport to United States.
What documentation or ID do you need to fly to United States?
The necessary travel and health documents for your United States 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.

Why use momondo?

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

Finding the right flight to United States from Cardiff 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 United States quick and easy, saving you time and money.

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

Yes. All flights to United States from Cardiff on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Cardiff to United States?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Cardiff to United States.

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

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