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Cheap flights from the United States to Cardiff from $263

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from the United States to Cardiff departing on 2/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from the United States to Cardiff

Recent round-trip flight deals from the United States to Cardiff

Enter your travel dates to find the best prices.
Multiple Airlines Logo
9:00 pm - 10:00 pmJFK-CWL
20h 00m2 stops
Multiple Airlines Logo
9:20 pm - 8:58 pmCWL-JFK
28h 38m3 stops
$494Multiple Airlines
Find Deal
Thu, Nov 13 - Sun, Nov 16
Multiple Airlines Logo
9:00 pm - 10:00 pmJFK-CWL
20h 00m2 stops
Multiple Airlines Logo
10:30 am - 4:40 pmCWL-JFK
35h 10m2 stops
$543Multiple Airlines
Find Deal
Thu, Nov 27 - Thu, Dec 4
Virgin Atlantic Logo
5:45 pm - 9:50 amJFK-CWL
11h 05m1 stop
Virgin Atlantic Logo
10:20 am - 7:20 pmCWL-JFK
14h 00m1 stop
$648Virgin Atlantic
Find Deal
Wed, Nov 26 - Wed, Dec 3
Delta Logo
7:05 pm - 4:55 pmBOS-CWL
16h 50m1 stop
Delta Logo
10:20 am - 1:30 pmCWL-BOS
32h 10m1 stop
$678Delta
Find Deal
Wed, Dec 31 - Tue, Jan 27
Delta Logo
7:05 pm - 9:50 amBOS-CWL
9h 45m1 stop
Delta Logo
10:20 am - 6:55 pmCWL-BOS
13h 35m1 stop
$679Delta
Find Deal
Wed, Dec 31 - Wed, Jan 28
Multiple Airlines Logo
6:50 pm - 9:50 amJFK-CWL
10h 00m1 stop
Multiple Airlines Logo
10:20 am - 7:20 pmCWL-JFK
14h 00m1 stop
$679Multiple Airlines
Find Deal
Tue, Nov 11 - Tue, Nov 18
KLM Logo
4:45 pm - 9:50 amJFK-CWL
12h 05m1 stop
KLM Logo
10:20 am - 10:23 pmCWL-JFK
17h 03m2 stops
$683KLM
Find Deal
Wed, Nov 26 - Wed, Dec 3
Delta Logo
6:05 am - 4:55 pmBOS-CWL
29h 50m2 stops
Delta Logo
10:20 am - 1:30 pmCWL-BOS
32h 10m1 stop
$683Delta
Find Deal
Wed, Dec 31 - Tue, Jan 27
KLM Logo
7:10 pm - 9:50 amBOS-CWL
9h 40m1 stop
KLM Logo
5:15 pm - 1:30 pmCWL-BOS
25h 15m1 stop
$687KLM
Find Deal
Mon, Jan 12 - Mon, Jan 19
Virgin Atlantic Logo
5:45 pm - 4:55 pmJFK-CWL
18h 10m1 stop
Virgin Atlantic Logo
10:20 am - 1:08 amCWL-JFK
19h 48m2 stops
$689Virgin Atlantic
Find Deal
Tue, Nov 11 - Tue, Nov 18

Delta flights from United States to Cardiff

Our best Delta deals on United States to Cardiff flight tickets
Delta
Dec 31
BOS7:05 pmBoston Logan Intl
16h 50m
1 stop
CWL4:55 pmCardiff Wales
Jan 27
CWL10:20 amCardiff Wales
32h 10m
1 stop
BOS1:30 pmBoston Logan Intl
$678
Find similar
Delta
Dec 31
BOS7:05 pmBoston Logan Intl
9h 45m
1 stop
CWL9:50 amCardiff Wales
Jan 28
CWL10:20 amCardiff Wales
13h 35m
1 stop
BOS6:55 pmBoston Logan Intl
$679
Find similar
Delta
Dec 31
BOS6:05 amBoston Logan Intl
29h 50m
2 stops
CWL4:55 pmCardiff Wales
Jan 27
CWL10:20 amCardiff Wales
32h 10m
1 stop
BOS1:30 pmBoston Logan Intl
$683
Find similar

KLM flights from United States to Cardiff

Our best KLM deals on United States to Cardiff flight tickets
KLM
Nov 26
JFK4:45 pmNew York John F Kennedy Intl
12h 05m
1 stop
CWL9:50 amCardiff Wales
Dec 3
CWL10:20 amCardiff Wales
17h 03m
2 stops
JFK10:23 pmNew York John F Kennedy Intl
$683
Find similar
KLM
Jan 12
BOS7:10 pmBoston Logan Intl
9h 40m
1 stop
CWL9:50 amCardiff Wales
Jan 19
CWL5:15 pmCardiff Wales
25h 15m
1 stop
BOS1:30 pmBoston Logan Intl
$687
Find similar
KLM
Jan 12
BOS1:00 pmBoston Logan Intl
15h 50m
2 stops
CWL9:50 amCardiff Wales
Jan 19
CWL5:15 pmCardiff Wales
25h 15m
1 stop
BOS1:30 pmBoston Logan Intl
$691
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from United States 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, momondo users made 832,500 searches. Data last updated October 30, 2025.
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

New YorkCardiff

JFK - CWL

JFKCWL

New York John F Kennedy Intl

Thu 11/13

9:00 pm-10:00 pm

2 stops20h 00m

Cardiff Wales

Sun 11/16

9:20 pm-8:58 pm

3 stops28h 38m

$494

New YorkCardiff

JFK - CWL

JFKCWL

New York John F Kennedy Intl

Thu 11/27

9:00 pm-10:00 pm

2 stops20h 00m

Cardiff Wales

Thu 12/4

10:30 am-4:40 pm

2 stops35h 10m

$543

New YorkCardiff

JFK - CWL

JFKCWL

New York John F Kennedy Intl

Wed 11/26

5:45 pm-9:50 am

1 stop11h 05m

Cardiff Wales

Wed 12/3

10:20 am-7:20 pm

1 stop14h 00m

$648

BostonCardiff

BOS - CWL

BOSCWL

Boston Logan Intl

Wed 12/31

7:05 pm-4:55 pm

1 stop16h 50m

Cardiff Wales

Tue 1/27

10:20 am-1:30 pm

1 stop32h 10m

$678

BostonCardiff

BOS - CWL

BOSCWL

Boston Logan Intl

Wed 12/31

7:05 pm-9:50 am

1 stop9h 45m

Cardiff Wales

Wed 1/28

10:20 am-6:55 pm

1 stop13h 35m

$679

New YorkCardiff

JFK - CWL

JFKCWL

New York John F Kennedy Intl

Tue 11/11

6:50 pm-9:50 am

1 stop10h 00m

Cardiff Wales

Tue 11/18

10:20 am-7:20 pm

1 stop14h 00m

$679

New YorkCardiff

JFK - CWL

JFKCWL

New York John F Kennedy Intl

Wed 11/26

4:45 pm-9:50 am

1 stop12h 05m

Cardiff Wales

Wed 12/3

10:20 am-10:23 pm

2 stops17h 03m

$683

BostonCardiff

BOS - CWL

BOSCWL

Boston Logan Intl

Wed 12/31

6:05 am-4:55 pm

2 stops29h 50m

Cardiff Wales

Tue 1/27

10:20 am-1:30 pm

1 stop32h 10m

$683

BostonCardiff

BOS - CWL

BOSCWL

Boston Logan Intl

Mon 1/12

7:10 pm-9:50 am

1 stop9h 40m

Cardiff Wales

Mon 1/19

5:15 pm-1:30 pm

1 stop25h 15m

$687

New YorkCardiff

JFK - CWL

JFKCWL

New York John F Kennedy Intl

Tue 11/11

5:45 pm-4:55 pm

1 stop18h 10m

Cardiff Wales

Tue 11/18

10:20 am-1:08 am

2 stops19h 48m

$689

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Cardiff from

How to get the cheapest flight ticket from United States to Cardiff

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Cardiff?

The cheapest day to depart on your flight to Cardiff is on a Thursday when prices can be found for as low as $905. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $1,575. These prices are subject to change though, so be sure to set up a Price Alert for flights to Cardiff.

What is the cheapest time of day to depart on your flight to Cardiff?

Flying to Cardiff from United States in the evening is the least expensive time of day to depart. momondo users have found prices as low as $882 when looking at flights departing in the evening. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $1,048 on average. Flights to Cardiff from United States in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

Can stopping save me money on United States to Cardiff flights?

You could potentially save up to 13% on your flight if you consider stops on a United States to Cardiff flight.

Cheap United States to Cardiff flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from United States to Cardiff

Direct flights

None
There are no direct flights from United States to Cardiff. There are no popular flight routes from United States to Cardiff.
Search flight deals

  • When did momondo last update prices for flights from United States to Cardiff Wales Airport?

    Prices for flights from United States to Cardiff Wales Airport are updated daily.

  • How many operators does momondo search for flights from United States to Cardiff Wales Airport?

  • How old do you have to be to fly from United States to Cardiff Wales Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from United States to Cardiff Wales Airport.

  • What documentation or ID do you need to fly to Cardiff Wales Airport?

    The travel and health documents required for your trip to Cardiff Wales Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Cardiff Wales Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from United States to Cardiff

Compare and see reviews for airlines that fly from United States to Cardiff with momondo
Airline
Rating
Free Cancellation
Price
KLMPriceFrom $766Free CancellationRating
7.7
1,406 reviews
Search KLM flights
DeltaPriceFrom $793Free CancellationRating
7.9
7,993 reviews
Search Delta flights

Why use momondo?

Why should I use momondo to find a flight deal from United States to Cardiff?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from United States to Cardiff for you.

Can I find flights from United States to Cardiff with flexible booking policies on momondo?

momondo does allow users to show only those flights to Cardiff from United States which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from United States to Cardiff?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Cardiff from United States.

I’m not ready to book a flight from United States to Cardiff right now. Can momondo alert me if prices change?

If you are not ready to book a flight from United States to Cardiff now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Cardiff and let you know when they change.

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