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Cheap flights from the United States to Cardiff from £233

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/6. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — CWL
17 Apr — 24 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from USA to Cardiff

Enter your travel dates to find the best prices.

Cheapest flights from USA to Cardiff
Explore the most affordable flight options available from USA to Cardiff. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 March 2026.

Mon 13/420:25
EWR
-
CWL
2 stops21h 25m
Multiple Airlines
Tue 28/423:15
CWL
-
EWR
2 stops25h 00m
Multiple Airlines
Deal found 16/3£410
Mon 13/420:30
JFK
-
CWL
2 stops21h 20m
Multiple Airlines
Tue 28/423:15
CWL
-
JFK
2 stops25h 05m
Multiple Airlines
Deal found 16/3£410
Wed 29/421:05
JFK
-
CWL
1 stop20h 20m
Multiple Airlines
Wed 6/521:10
CWL
-
JFK
2 stops30h 20m
Multiple Airlines
Deal found 14/3£498
Mon 27/421:05
JFK
-
CWL
1 stop20h 45m
Multiple Airlines
Mon 4/520:40
CWL
-
JFK
2 stops30h 50m
Multiple Airlines
Deal found 13/3£536
Thu 30/423:55
JFK
-
CWL
1 stop26h 00m
Multiple Airlines
Thu 7/522:50
CWL
-
JFK
2 stops22h 05m
Multiple Airlines
Deal found 16/3£546
Mon 4/522:05
JFK
-
CWL
3 stops19h 45m
Multiple Airlines
Sun 17/521:45
CWL
-
JFK
2 stops30h 03m
Multiple Airlines
Deal found 14/3£606
Wed 29/421:15
BOS
-
CWL
1 stop20h 10m
Multiple Airlines
Wed 6/523:30
CWL
-
BOS
2 stops26h 35m
Multiple Airlines
Deal found 15/3£625
Sat 25/423:55
JFK
-
CWL
1 stop16h 25m
Multiple Airlines
Sun 3/517:40
CWL
-
JFK
2 stops30h 40m
Multiple Airlines
Deal found 14/3£635
Tue 24/309:00
IAD
-
CWL
2 stops26h 30m
Multiple Airlines
Tue 31/323:15
CWL
-
IAD
2 stops21h 50m
Multiple Airlines
Deal found 14/3£649
Wed 29/423:55
EWR
-
CWL
2 stops32h 10m
Multiple Airlines
Wed 6/521:10
CWL
-
EWR
2 stops30h 15m
Multiple Airlines
Deal found 14/3£651
Tue 6/1017:25
BOS
-
CWL
1 stop25h 00m
Multiple Airlines
Tue 13/1023:15
CWL
-
BOS
1 stop20h 40m
Multiple Airlines
Deal found 13/3£658
Thu 30/413:03
MCO
-
CWL
2 stops22h 42m
Multiple Airlines
Thu 7/509:45
CWL
-
MCO
2 stops19h 14m
Multiple Airlines
Deal found 16/3£660

Find flight deals from USA to Cardiff

Keep the following information in mind while searching for USA to Cardiff flight deals. Data was last updated 18 March 2026.

Round-trip from

£410

One-way from

£233
13/4-28/4
  • 13/4-28/4
  • 4 total stops
  • 46h 25m total
  • USA to Cardiff
Search Deals
WestJet
  • WestJet
  • 2/6
  • 3 total stops
  • 32h 10m total
  • USA to Cardiff
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from USA to Cardiff that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 18 March 2026.
Use the filters below to find and compare flights from the United States to Cardiff that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

NewarkCardiff

EWR - CWL

EWRCWL

Newark

Mon 13/4

20:25-22:50

2 stops21h 25m

Cardiff Wales

Tue 28/4

23:15-19:15

2 stops25h 00m

£410

NewarkCardiff

EWR - CWL

EWRCWL

Newark

Wed 29/4

23:55-13:05

2 stops32h 10m

Cardiff Wales

Wed 6/5

21:10-22:25

2 stops30h 15m

£651

New YorkCardiff

JFK - CWL

JFKCWL

New York John F Kennedy Intl

Mon 27/4

21:10-09:15

1 stop31h 05m

Cardiff Wales

Mon 4/5

09:45-12:24

1 stop31h 39m

£670

BostonCardiff

BOS - CWL

BOSCWL

Boston Logan Intl

Wed 29/4

17:40-13:05

2 stops38h 25m

Cardiff Wales

Wed 6/5

21:10-19:50

2 stops27h 40m

£688

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Tue 21/4

16:20-16:45

1 stop18h 25m

Cardiff Wales

Thu 7/5

17:15-14:15

1 stop27h 00m

£690

Washington, D.C.Cardiff

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Sun 10/5

20:55-21:45

1 stop19h 50m

Cardiff Wales

Sun 17/5

17:40-19:25

2 stops30h 45m

£700

NewarkCardiff

EWR - CWL

EWRCWL

Newark

Mon 27/4

20:25-22:50

2 stops21h 25m

Cardiff Wales

Mon 4/5

22:10-16:05

1 stop22h 55m

£707
Fastest return journey

BostonCardiff

BOS - CWL

BOSCWL

Boston Logan Intl

Sun 6/9

19:00-09:15

1 stop9h 15m

Cardiff Wales

Mon 14/9

09:45-16:35

1 stop11h 50m

£707

Los AngelesCardiff

LAX - CWL

LAXCWL

Los Angeles Los Angeles

Mon 27/4

13:50-09:15

1 stop35h 25m

Cardiff Wales

Tue 5/5

17:15-14:45

1 stop29h 30m

£712

BostonCardiff

BOS - CWL

BOSCWL

Boston Logan Intl

Sun 6/9

19:00-09:15

1 stop9h 15m

Cardiff Wales

Mon 14/9

09:45-22:36

2 stops17h 51m

£716

Flights are sorted by cheapest return flights first.

Deals found on 13/3

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
6

Best time to book a flight from USA to Cardiff

Have a flexible travel schedule? Discover the best time to fly to Cardiff from USA with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from the United States to Cardiff

What is the cheapest month to book a flight from USA to Cardiff?

Currently, April is the cheapest month in which you can book a flight from USA to Cardiff (average of £155). Flying from USA to Cardiff in June is currently the most expensive (average of £794). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Cardiff

Get insights into the airlines that provide service to Cardiff. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Cardiff. Reviews last updated 18 March 2026.
Read reviews from past customers who have flown with KLM from the United States to Cardiff. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,471 reviews
Check prices

Boarding

7.8

Overall

7.8

Crew

8.4

Food

7.3

Entertainment

7.1

Comfort

7.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
KLM
7.8
Good
1,471 reviews
KLM
7.8
Good
1,471 reviews
Check prices

Boarding

7.8

Overall

7.8

Crew

8.4

Food

7.3

Entertainment

7.1

Comfort

7.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas

Related info for your journey

Find useful and relevant information for your journey from USA to Cardiff. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Cardiff from United States?

    If you book a flight to Cardiff from United States, you will be flying to Cardiff Wales, which is the city’s only airport. Cardiff Wales (CWL) is located 9.1 mi from the center of Cardiff.

  • How long is the flight from USA to Cardiff?

    There are many flights that can get you from USA to Cardiff in 9h 15m. Fly via KLM, Delta, or Virgin Atlantic to get the fastest option. Airlines will cover a distance of 3137 mi. This flight may include one or multiple stops.

  • What are the most popular routes from USA to Cardiff?

    Most travelers choose New York John F Kennedy Intl - Cardiff Wales, Newark - Cardiff Wales or New York LaGuardia - Cardiff Wales when deciding on the best route from USA to Cardiff.

  • Can I find deals for flights from USA to Cardiff that include hotel bookings?

    Yes. In addition to deals on USA to Cardiff flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from USA to Cardiff?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from USA to Cardiff.

  • Can I find deals for business class flights from USA to Cardiff?

    Yes. Cheapflights offers flight deals from USA to Cardiff by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from USA to Cardiff?

    Currently, April is the cheapest month in which you can book a flight from USA to Cardiff (average of £155). Flying from USA to Cardiff in June is currently the most expensive (average of £794). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Cardiff?

Book flights to Cardiff if you plan to visit one of these locations
Barry
Bridgend

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See prices for flight routes from nearby airports that may be better suited for you.
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Fly with Cheapflights

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How does Cheapflights help users find flights from USA to Cardiff?

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Why should you use Cheapflights to find cheap flight tickets from USA to Cardiff?

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Can Cheapflights find flights from USA to Cardiff with no change fees?

Yes, we can. To see specific flights from USA to Cardiff with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from USA to Cardiff become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Cardiff from USA today and book when prices fit your budget.

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