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Cardiff

$293+ Cheap flights from the United States to Cardiff (CWL)

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 3/31. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — CWL
Jan 7 — Jan 141
Wed 1/7
Wed 1/14
1 adult, Economy
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Cheap 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 December 8, 2025.

This Delta deal was found by Cheapflights users on 12/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/81:55 pmSFO - CWL
1 stop19h 00mDelta
Mon 12/1510:20 amCWL - SFO
1 stop33h 30mDelta
Deal found 12/7$771
This KLM deal was found by Cheapflights users on 12/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/73:14 pmDEN - CWL
2 stops18h 31mKLM
Sun 12/145:30 pmCWL - DEN
2 stops31h 22mKLM
Deal found 12/6$814
This KLM deal was found by Cheapflights users on 12/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/291:55 pmSFO - CWL
1 stop19h 00mKLM
Tue 1/65:25 pmCWL - SFO
2 stops32h 24mKLM
Deal found 12/6$926
This Mytrip deal was found by Cheapflights users on 12/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/1411:35 amBOS - CWL
2 stops30h 30mMultiple Airlines
Sat 12/2011:45 pmCWL - BOS
1 stop19h 05mMultiple Airlines
Deal found 12/5$1,237
This Kiwi.com deal was found by Cheapflights users on 12/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/295:20 pmBOS - CWL
1 stop23h 15mMultiple Airlines
Sun 1/49:20 pmCWL - BOS
2 stops25h 30mMultiple Airlines
Deal found 12/6$1,280
This Gotogate deal was found by Cheapflights users on 12/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/85:05 pmEWR - CWL
2 stops11h 45mKLM
Tue 12/95:25 pmCWL - EWR
2 stops26h 30mKLM
Deal found 12/8$1,345
This Mytrip deal was found by Cheapflights users on 12/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/86:50 pmORD - CWL
3 stops34h 40mMultiple Airlines
Wed 12/103:55 pmCWL - ORD
2 stops32h 50mMultiple Airlines
Deal found 12/7$1,387
This KLM deal was found by Cheapflights users on 12/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/113:05 pmSEA - CWL
1 stop34h 45mKLM
Sat 12/135:25 pmCWL - SEA
1 stop26h 25mKLM
Deal found 12/7$1,402
This Kiwi.com deal was found by Cheapflights users on 12/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/285:20 pmBOS - CWL
1 stop24h 45mMultiple Airlines
Sun 1/49:20 pmCWL - BOS
2 stops25h 30mMultiple Airlines
Deal found 12/6$1,416
This KLM deal was found by Cheapflights users on 12/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/303:40 pmSFO - CWL
2 stops17h 15mKLM
Wed 1/710:20 amCWL - SFO
2 stops20h 44mKLM
Deal found 12/6$1,501
This Kiwi.com deal was found by Cheapflights users on 12/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/279:20 pmBOS - CWL
1 stop18h 35mMultiple Airlines
Sun 1/49:20 pmCWL - BOS
2 stops25h 30mMultiple Airlines
Deal found 12/6$1,513
This Mytrip deal was found by Cheapflights users on 12/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/81:55 pmSFO - CWL
1 stop19h 00mMultiple Airlines
Mon 12/1511:30 pmCWL - SFO
1 stop24h 05mMultiple Airlines
Deal found 12/7$1,556

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 December 8, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$455
(Mytrip)

One-way from

$293
(Kiwi.com)

Popular in

January

Cheapest in

December

Average price

$753
Provider with most accurate pricing for New York (NYC)-Cardiff Wales flight deals.
Search Deals
Provider most trusted by Cheapflights users for New York (NYC)-Cardiff Wales flights.
Search Deals
From USA to Cardiff Wales
Search Deals
One-way flight from USA to Cardiff Wales
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($81 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease ($84 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated December 8, 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

BostonCardiff

BOS - CWL

BOSCWL

Boston Logan Intl

Wed 1/21

5:10 pm-10:05 am

1 stop11h 55m

Cardiff Wales

Wed 1/28

3:55 pm-8:55 pm

2 stops34h 00m

$618

New YorkCardiff

JFK - CWL

JFKCWL

New York John F Kennedy Intl

Wed 1/21

7:05 am-9:50 am

2 stops21h 45m

Cardiff Wales

Wed 1/28

10:20 am-3:45 pm

1 stop10h 25m

$660

BostonCardiff

BOS - CWL

BOSCWL

Boston Logan Intl

Wed 1/21

8:50 pm-4:55 pm

1 stop15h 05m

Cardiff Wales

Wed 1/28

10:20 am-6:55 pm

1 stop13h 35m

$683

NewarkCardiff

EWR - CWL

EWRCWL

Newark

Wed 1/21

5:45 pm-10:05 am

1 stop11h 20m

Cardiff Wales

Wed 1/28

3:55 pm-3:40 pm

2 stops28h 45m

$685

NewarkCardiff

EWR - CWL

EWRCWL

Newark

Tue 1/20

12:05 pm-9:50 am

2 stops16h 45m

Cardiff Wales

Tue 1/27

10:20 am-9:34 am

2 stops28h 14m

$688

NewarkCardiff

EWR - CWL

EWRCWL

Newark

Wed 1/21

3:40 pm-9:50 am

2 stops13h 10m

Cardiff Wales

Wed 1/28

10:20 am-11:13 pm

2 stops17h 53m

$697

BostonCardiff

BOS - CWL

BOSCWL

Boston Logan Intl

Fri 1/16

8:50 pm-4:55 pm

1 stop15h 05m

Cardiff Wales

Fri 1/23

10:20 am-6:55 pm

1 stop13h 35m

$733

New YorkCardiff

JFK - CWL

JFKCWL

New York John F Kennedy Intl

Sun 1/18

5:00 pm-11:05 pm

1 stop25h 05m

Cardiff Wales

Wed 6/10

11:50 pm-12:20 pm

2 stops41h 30m

$744

NewarkCardiff

EWR - CWL

EWRCWL

Newark

Fri 1/23

3:40 pm-9:50 am

2 stops13h 10m

Cardiff Wales

Mon 1/26

5:15 pm-5:29 pm

2 stops29h 14m

$747

NewarkCardiff

EWR - CWL

EWRCWL

Newark

Fri 1/23

9:47 am-9:50 am

2 stops19h 03m

Cardiff Wales

Tue 1/27

10:20 am-11:13 pm

2 stops17h 53m

$747

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/6

Showing 1-10 of 49 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 round-trip 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 $515). Flying from USA to Cardiff in June is currently the most expensive (average of $1,059). 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 December 8, 2025.

A simple way to save on the total cost of your ticket is to fly from USA to Cardiff in the evening. If you’re flexible enough to do this you can expect to save up to 16% on your trip compared to booking a flight at noon.

The best insider tips for theUnited States to Cardiff flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your theUnited States to Cardiff trip
Airlines
KLM

KLM's Economy Comfort offers 4 inches extra legroom on long-haul flights, enhancing comfort.


KLM's long-haul premium economy provides extra width and legroom with an upgraded service.

Read more about KLMby Gabriel Leigh
Delta

Delta One offers 180-degree flat-bed seats with duvets and lumbar pillows on long-haul routes.


Delta Comfort Plus includes extra legroom and upgraded snacks on international flights.

Read more about Deltaby Harriet Baskas
Our travel experts
Gabriel Leigh

Gabriel Leigh

Expert on KLM

Gabriel Leigh

Gabriel Leigh

Gabriel is a writer and video creator. As senior content producer for Flightradar24 and Monocle’s transport correspondent, he keeps a close eye on aviation in particular. He has also written travel articles for the likes of The New York Times. Born in New York but raised around the world, he now lives in Sweden. He’s been to 75 countries, flying 2.3 million miles on 113 airlines and through 234 airports in the process.

Read more
Harriet Baskas

Harriet Baskas

Expert on Delta

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more

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 December 8, 2025.
See what other customers who have flown with Delta and KLM from the United States to Cardiff have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,010 reviews

Overall

7.9

Entertainment

7.9

Crew

8.5

Boarding

8.1

Comfort

7.9

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,010 reviews
Delta
7.9
Good
8,010 reviews

Overall

7.9

Entertainment

7.9

Crew

8.5

Boarding

8.1

Comfort

7.9

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
KLM
7.7
Good
1,431 reviews
Delta
7.9
Good
8,010 reviews

Overall

7.9

Entertainment

7.9

Crew

8.5

Boarding

8.1

Comfort

7.9

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

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?

    Located just 9.1 mi from the city center, Cardiff Wales (CWL) is the airport most travelers will use when flying to Cardiff from United States.

  • How long is the flight from USA to Cardiff?

    Virgin Atlantic, Delta, and KLM can get you from USA to Cardiff in just under 15h 05m. Your travel time can differ by up to 6h 40m. The distance between USA and Cardiff is about 3137 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    The most popular route from USA to Cardiff is Boston Logan Intl - Cardiff Wales. You may also consider Charlotte Douglas - Cardiff Wales or New York John F Kennedy Intl - Cardiff Wales.

  • 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 vacation 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 $515). Flying from USA to Cardiff in June is currently the most expensive (average of $1,059). 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

Traveling to a place near Cardiff?

Book flights to Cardiff if you plan to visit one of these locations
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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Top 2 airlines flying from USA to Cardiff

Discover the top 2 airlines that operate flights from USA to Cardiff. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 8, 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$644Average$847FlexibilityNo cancel feeOn-time75%
DeltaCheapest$791Average$992FlexibilityNo cancel feeOn-timeN/A

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