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Cheap flights from the United States to Cardiff from £251

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 14/7. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — CWL
2 Apr — 9 Apr1
1 adult

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 28 March 2025.

Round-trip from

£493

One-way from

£251

Popular in

August

Cheapest in

October

Average price

£652
11/5-18/5
  • 11/5-18/5
  • 2 total stops
  • 28h 10m total
  • USA to Cardiff
Search Deals
14/7
  • 14/7
  • 3 total stops
  • 51h 10m total
  • USA to Cardiff
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£94 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£35 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2025
Search Deals

Find flight deals from USA to Cardiff

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 28 March 2025.

Sun 11/516:55JFK - CWL
1 stop14h 50mMultiple Airlines
Sun 18/511:00CWL - JFK
1 stop13h 20mMultiple Airlines
Deal found 27/3£493
Wed 2/418:40BOS - CWL
1 stop9h 35mKLM
Mon 7/417:15CWL - BOS
1 stop30h 05mKLM
Deal found 28/3£619
Tue 14/1018:45BOS - CWL
1 stop9h 30mDelta
Tue 21/1009:50CWL - BOS
1 stop11h 40mDelta
Deal found 27/3£619
Sun 11/505:35BWI - CWL
3 stops26h 10mMultiple Airlines
Sun 18/512:45CWL - BWI
3 stops37h 36mMultiple Airlines
Deal found 27/3£652
Wed 20/817:25IAD - CWL
1 stop18h 20mAir France
Wed 27/809:50CWL - IAD
1 stop10h 45mAir France
Deal found 27/3£653
Wed 20/813:00IAD - CWL
2 stops15h 15mMultiple Airlines
Wed 27/809:50CWL - IAD
1 stop10h 45mMultiple Airlines
Deal found 27/3£657
Mon 12/517:25IAD - CWL
1 stop18h 20mKLM
Mon 19/509:50CWL - IAD
1 stop10h 45mKLM
Deal found 28/3£662
Mon 12/513:30ORD - CWL
2 stops13h 45mKLM
Mon 19/517:15CWL - ORD
1 stop26h 55mKLM
Deal found 28/3£663
Wed 20/813:00BWI - CWL
2 stops15h 15mKLM
Wed 27/809:50CWL - BWI
2 stops16h 03mKLM
Deal found 27/3£664
Mon 12/509:40IAD - CWL
2 stops18h 35mDelta
Mon 19/509:50CWL - IAD
1 stop10h 45mDelta
Deal found 28/3£666
Mon 12/516:20ORD - CWL
1 stop18h 25mVirgin Atlantic
Mon 19/517:15CWL - ORD
1 stop26h 55mVirgin Atlantic
Deal found 28/3£668
Fri 25/417:59MDW - CWL
2 stops17h 06mDelta
Fri 2/509:50CWL - MDW
2 stops18h 32mDelta
Deal found 28/3£669

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 28 March 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 11/5

16:55-12:45

1 stop14h 50m

Cardiff Wales

Sun 18/5

11:00-19:20

1 stop13h 20m

£493

BostonCardiff

BOS - CWL

BOSCWL

Boston Logan Intl

Tue 13/5

20:15-09:15

1 stop32h 00m

Cardiff Wales

Mon 19/5

09:50-16:25

1 stop11h 35m

£647

BostonCardiff

BOS - CWL

BOSCWL

Boston Logan Intl

Tue 13/5

11:25-09:15

2 stops16h 50m

Cardiff Wales

Mon 19/5

09:50-16:25

1 stop11h 35m

£650

BaltimoreCardiff

BWI - CWL

BWICWL

Baltimore/Washington

Sun 11/5

05:35-12:45

3 stops26h 10m

Cardiff Wales

Sun 18/5

12:45-21:21

3 stops37h 36m

£652

Washington, D.C.Cardiff

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Wed 20/8

17:25-16:45

1 stop18h 20m

Cardiff Wales

Wed 27/8

09:50-15:35

1 stop10h 45m

£653

Washington, D.C.Cardiff

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Wed 20/8

13:00-09:15

2 stops15h 15m

Cardiff Wales

Wed 27/8

09:50-15:35

1 stop10h 45m

£657

Washington, D.C.Cardiff

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Mon 12/5

17:25-16:45

1 stop18h 20m

Cardiff Wales

Mon 19/5

09:50-15:35

1 stop10h 45m

£662

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Mon 12/5

13:30-09:15

2 stops13h 45m

Cardiff Wales

Mon 19/5

17:15-14:10

1 stop26h 55m

£663

BaltimoreCardiff

BWI - CWL

BWICWL

Baltimore/Washington

Wed 20/8

13:00-09:15

2 stops15h 15m

Cardiff Wales

Wed 27/8

09:50-20:53

2 stops16h 03m

£664

Washington, D.C.Cardiff

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Mon 12/5

09:40-09:15

2 stops18h 35m

Cardiff Wales

Mon 19/5

09:50-15:35

1 stop10h 45m

£666

Flights are sorted by cheapest return flights first.

Deals found on 27/3

Showing 1-10 of 51 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, July is the cheapest month in which you can book a flight from USA to Cardiff (average of £169). Flying from USA to Cardiff in December is currently the most expensive (average of £263). 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 28 March 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from USA to Cardiff as you normally would.

Rainfall in Cardiff by month

Plan your trip to Cardiff by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Cardiff ranges from 50.0 - 90.0 inches per month. January is typically the wettest month, when rainfall can reach 90.0 mm. April is typically the driest time to visit Cardiff when rainfall is around 50.0 mm.

Temperature in Cardiff by month

Plan your trip to Cardiff by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Cardiff, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 18.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 4.0 C).

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 28 March 2025.
Get a feel of what it's like to fly with Delta, KLM and Air France from USA to Cardiff by reading reviews from past customers. 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.
Delta
8.0
Very Good
7,896 reviews
Check prices

Comfort

8.0

Overall

8.0

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very Good
7,896 reviews
Delta
8.0
Very Good
7,896 reviews
Check prices

Comfort

8.0

Overall

8.0

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,321 reviews
Delta
8.0
Very Good
7,896 reviews
Check prices

Comfort

8.0

Overall

8.0

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air France
7.4
Good
1,424 reviews
Delta
8.0
Very Good
7,896 reviews
Check prices

Comfort

8.0

Overall

8.0

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Virgin Atlantic
7.4
Good
634 reviews
Delta
8.0
Very Good
7,896 reviews
Check prices

Comfort

8.0

Overall

8.0

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Aer Lingus
7.0
Good
1,062 reviews
Delta
8.0
Very Good
7,896 reviews
Check prices

Comfort

8.0

Overall

8.0

Food

7.3

Boarding

8.2

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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.

  • 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 £358 on Delta. Other airlines that offer cheap prices include Air France from £408 and KLM from £414 one-way.

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

    Most travelers choose Chicago O'Hare Intl - Cardiff Wales, Boston Logan Intl - Cardiff Wales or Chicago Midway - 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, July is the cheapest month in which you can book a flight from USA to Cardiff (average of £169). Flying from USA to Cardiff in December is currently the most expensive (average of £263). 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 the United States?

Book flights to the United States if you plan to visit one of these locations
Barry
Bridgend

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Alternative routes for USA to Cardiff

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