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Cheap flights from the United States to Cardiff from £239

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 31/12. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — CWL
21 déc. — 28 déc.1
1 adult
1 adult, Economy, 0 bags

Find 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 21 novembre 2025.

mar. 2/1215:50ORD - CWL
1 stop17h 40mMultiple Airlines
jeu. 11/1210:30CWL - ORD
1 stop13h 25mMultiple Airlines
Deal found 19/11£483
dim. 7/1221:20BOS - CWL
1 stop20h 45mMultiple Airlines
mar. 23/1216:45CWL - BOS
2 stops57h 10mMultiple Airlines
Deal found 20/11£510
dim. 7/1220:50BOS - CWL
1 stop32h 00mKLM
mar. 23/1217:25CWL - BOS
1 stop24h 55mKLM
Deal found 20/11£516
mar. 30/1217:30EWR - CWL
2 stops35h 20mDelta
jeu. 8/110:20CWL - EWR
2 stops29h 38mDelta
Deal found 18/11£540
mer. 31/1207:10JFK - CWL
2 stops28h 45mVirgin Atlantic
mer. 7/110:20CWL - JFK
1 stop30h 20mVirgin Atlantic
Deal found 18/11£544
mer. 3/1217:45JFK - CWL
1 stop18h 10mKLM
dim. 7/1217:30CWL - JFK
1 stop24h 45mKLM
Deal found 20/11£555
mer. 31/1206:15EWR - CWL
2 stops22h 35mMultiple Airlines
mer. 7/117:25CWL - EWR
2 stops31h 19mMultiple Airlines
Deal found 18/11£562
mer. 3/1217:45JFK - CWL
1 stop18h 10mVirgin Atlantic
dim. 7/1210:20CWL - JFK
2 stops17h 03mVirgin Atlantic
Deal found 20/11£562
ven. 5/1206:15LGA - CWL
2 stops22h 35mDelta
mar. 9/1210:20CWL - LGA
2 stops36h 21mDelta
Deal found 17/11£566
mer. 31/1217:45JFK - CWL
1 stop11h 05mMultiple Airlines
mer. 7/117:25CWL - JFK
1 stop30h 55mMultiple Airlines
Deal found 18/11£572
lun. 8/1213:45LAX - CWL
1 stop19h 10mVirgin Atlantic
mer. 24/1210:20CWL - LAX
1 stop33h 25mVirgin Atlantic
Deal found 19/11£585
lun. 24/1118:05IAD - CWL
1 stop17h 50mKLM
mar. 23/1217:25CWL - IAD
1 stop27h 40mKLM
Deal found 18/11£591

Cheap flight deals from USA to Cardiff

Keep the following information in mind while searching for USA to Cardiff flight deals. Data was last updated 21 novembre 2025.

Round-trip from

£418

One-way from

£239

Popular in

January

Cheapest in

December

Average price

£767
19/3-23/3
  • 19/3-23/3
  • 6 total stops
  • 47h 07m total
  • USA to Cardiff
Search Deals
31/12
  • 31/12
  • 2 total stops
  • 18h 40m total
  • USA to Cardiff
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (£32 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease (£48 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 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 21 novembre 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

LGA - CWL

LGACWL

New York LaGuardia

jeu. 19/3

16:20-22:00

3 stops25h 40m

Cardiff Wales

lun. 23/3

23:30-16:57

3 stops21h 27m

£418

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

mar. 2/12

15:50-15:30

1 stop17h 40m

Cardiff Wales

jeu. 11/12

10:30-17:55

1 stop13h 25m

£483

BostonCardiff

BOS - CWL

BOSCWL

Boston Logan Intl

mer. 11/3

18:10-10:05

1 stop11h 55m

Cardiff Wales

lun. 16/3

23:30-21:55

2 stops26h 25m

£504

BostonCardiff

BOS - CWL

BOSCWL

Boston Logan Intl

dim. 7/12

20:50-09:50

1 stop32h 00m

Cardiff Wales

mar. 23/12

17:25-13:20

1 stop24h 55m

£516

New YorkCardiff

JFK - CWL

JFKCWL

New York John F Kennedy Intl

mer. 8/4

19:35-16:45

1 stop16h 10m

Cardiff Wales

jeu. 16/4

09:50-17:05

1 stop12h 15m

£533

New YorkCardiff

JFK - CWL

JFKCWL

New York John F Kennedy Intl

mer. 15/4

21:10-16:45

1 stop14h 35m

Cardiff Wales

lun. 20/4

17:15-17:05

1 stop28h 50m

£533

New YorkCardiff

JFK - CWL

JFKCWL

New York John F Kennedy Intl

mer. 25/3

18:45-09:50

1 stop11h 05m

Cardiff Wales

jeu. 2/4

09:50-17:05

1 stop12h 15m

£534

New YorkCardiff

JFK - CWL

JFKCWL

New York John F Kennedy Intl

mer. 8/4

14:00-09:15

2 stops14h 15m

Cardiff Wales

jeu. 16/4

09:50-17:05

1 stop12h 15m

£537

NewarkCardiff

EWR - CWL

EWRCWL

Newark

dim. 11/1

20:30-09:50

2 stops32h 20m

Cardiff Wales

mer. 21/1

10:20-07:53

2 stops26h 33m

£539

NewarkCardiff

EWR - CWL

EWRCWL

Newark

dim. 11/1

20:30-09:50

2 stops32h 20m

Cardiff Wales

jeu. 22/1

10:20-00:55

2 stops19h 35m

£539

Flights are sorted by cheapest return flights first.

Deals found on 19/11

Showing 1-10 of 40 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, August is the cheapest month in which you can book a flight from USA to Cardiff (average of £412). Flying from USA to Cardiff in June is currently the most expensive (average of £811). 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.

What is the cheapest time of day to fly from US to CWL?

Find hourly flight availability from USA to Cardiff. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 21 novembre 2025.

When flying from USA to Cardiff, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 25% versus a flight at midday.

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 21 novembre 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
1,414 reviews
Check prices

Comfort

7.7

Entertainment

7.1

Crew

8.4

Food

7.3

Overall

7.7

Boarding

7.8

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
KLM
7.7
Good
1,414 reviews
KLM
7.7
Good
1,414 reviews
Check prices

Comfort

7.7

Entertainment

7.1

Crew

8.4

Food

7.3

Overall

7.7

Boarding

7.8

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

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 11h 05m. 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 cheapest airlines to fly from USA to Cardiff one-way?

    One-way options have recently been found by users for as low as £347 on Delta. Other airlines that offer cheap prices include KLM from £360 and Virgin Atlantic from £363 one-way.

  • 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 Newark - 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, August is the cheapest month in which you can book a flight from USA to Cardiff (average of £412). Flying from USA to Cardiff in June is currently the most expensive (average of £811). 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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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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