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Cheap flights from the United States to Cardiff from £252

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 14/2. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — CWL
28 Jan — 4 Feb1
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 29 December 2025.

Mon 29/1222:00JFK - CWL
1 stop28h 00mMultiple Airlines
Mon 5/123:30CWL - JFK
2 stops41h 55mMultiple Airlines
Deal found 28/12£987
Mon 29/1220:50BOS - CWL
1 stop32h 00mKLM
Mon 5/117:15CWL - BOS
2 stops27h 38mKLM
Deal found 28/12£1,341
Mon 29/1216:40JFK - CWL
1 stop19h 15mKLM
Mon 5/117:15CWL - JFK
1 stop31h 05mKLM
Deal found 28/12£1,342
Mon 29/1219:05JFK - CWL
2 stops35h 25mAer Lingus
Mon 5/112:00CWL - JFK
2 stops34h 20mAer Lingus
Deal found 28/12£1,836
Mon 29/1207:30BOS - CWL
2 stops23h 00mAer Lingus
Mon 5/112:00CWL - BOS
2 stops36h 45mAer Lingus
Deal found 28/12£2,217
Mon 29/1207:30BOS - CWL
3 stops23h 00mMultiple Airlines
Mon 5/112:00CWL - BOS
3 stops26h 29mMultiple Airlines
Deal found 28/12£3,568
Mon 29/1221:35EWR - CWL
2 stops32h 55mAer Lingus
Mon 5/112:00CWL - EWR
2 stops30h 50mAer Lingus
Deal found 28/12£4,910

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 29 December 2025.

Round-trip from

£334

One-way from

£252

Popular in

January

Cheapest in

December

Average price

£558
25/1-1/2
  • 25/1-1/2
  • 4 total stops
  • 44h 54m total
  • USA to Cardiff
Search Deals
14/2
  • 14/2
  • 2 total stops
  • 24h 25m total
  • USA to Cardiff
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (£44 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease (£47 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
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 29 December 2025.
Use the filters below to find and compare flights from the United States to Cardiff that are best for you.

Fly from

USA

Fly to

Cardiff

Route

Depart

Return

Price

New YorkCardiff

JFK - CWL

JFKCWL

New York John F Kennedy Intl

Sun 25/1

21:00-23:05

2 stops21h 05m

Cardiff Wales

Sun 1/2

21:20-16:09

2 stops23h 49m

£334

BostonCardiff

BOS - CWL

BOSCWL

Boston Logan Intl

Mon 26/1

19:10-16:55

1 stop16h 45m

Cardiff Wales

Mon 2/2

17:15-13:25

1 stop25h 10m

£508

New YorkCardiff

JFK - CWL

JFKCWL

New York John F Kennedy Intl

Wed 11/2

11:20-09:50

2 stops17h 30m

Cardiff Wales

Wed 18/2

10:20-15:45

1 stop10h 25m

£511

NewarkCardiff

EWR - CWL

EWRCWL

Newark

Wed 11/2

12:05-09:50

2 stops16h 45m

Cardiff Wales

Wed 18/2

10:20-23:06

2 stops17h 46m

£512

New YorkCardiff

JFK - CWL

JFKCWL

New York John F Kennedy Intl

Wed 11/2

21:20-16:55

1 stop14h 35m

Cardiff Wales

Wed 18/2

10:20-00:50

2 stops19h 30m

£515

BostonCardiff

BOS - CWL

BOSCWL

Boston Logan Intl

Tue 13/1

19:10-16:55

1 stop16h 45m

Cardiff Wales

Mon 19/1

17:15-15:53

2 stops27h 38m

£515

NewarkCardiff

EWR - CWL

EWRCWL

Newark

Sun 8/2

22:00-23:05

2 stops20h 05m

Cardiff Wales

Sun 15/2

17:30-20:30

3 stops32h 00m

£518

NewarkCardiff

EWR - CWL

EWRCWL

Newark

Wed 11/2

11:54-09:50

2 stops16h 56m

Cardiff Wales

Wed 18/2

10:20-23:06

2 stops17h 46m

£518

BostonCardiff

BOS - CWL

BOSCWL

Boston Logan Intl

Sun 19/4

20:25-09:15

1 stop31h 50m

Cardiff Wales

Fri 1/5

09:45-18:30

1 stop13h 45m

£518

New YorkCardiff

JFK - CWL

JFKCWL

New York John F Kennedy Intl

Sun 15/2

17:00-23:05

1 stop25h 05m

Cardiff Wales

Sat 21/2

20:05-15:55

2 stops24h 50m

£519

Flights are sorted by cheapest return flights first.

Deals found on 28/12

Showing 1-10 of 55 results
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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, January is the cheapest month in which you can book a flight from USA to Cardiff (average of £381). Flying from USA to Cardiff in June is currently the most expensive (average of £784). 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 29 December 2025.
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
7.7
Good
1,435 reviews
Check prices

Crew

8.4

Food

7.2

Overall

7.7

Boarding

7.7

Entertainment

7.1

Comfort

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
KLM
7.7
Good
1,435 reviews
KLM
7.7
Good
1,435 reviews
Check prices

Crew

8.4

Food

7.2

Overall

7.7

Boarding

7.7

Entertainment

7.1

Comfort

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

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 14h 35m. Fly via KLM, Delta, or Virgin Atlantic to get the fastest option. Airlines will cover a distance of 3323 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, Chicago O'Hare Intl - Cardiff Wales or Washington, D.C. Dulles Intl - 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, January is the cheapest month in which you can book a flight from USA to Cardiff (average of £381). Flying from USA to Cardiff in June is currently the most expensive (average of £784). 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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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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