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Cheap flights from the United States to Cardiff from $235

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 10/15. 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

Logo
10:00 pm - 8:55 pmEWR-CWL
17h 55m2 stops
Logo
9:20 pm - 3:43 pmCWL-EWR
23h 23m2 stops
$478
Find Deal
Sat, Nov 22 - Sun, Nov 30
Logo
9:00 pm - 8:55 pmJFK-CWL
18h 55m2 stops
Logo
9:20 pm - 8:58 pmCWL-JFK
28h 38m3 stops
$478
Find Deal
Sat, Nov 22 - Sun, Nov 30
Logo
7:05 pm - 11:05 pmJFK-CWL
23h 00m2 stops
Logo
10:30 am - 7:25 pmCWL-JFK
13h 55m1 stop
$521
Find Deal
Sun, Nov 23 - Thu, Nov 27
KLM Logo
4:50 pm - 4:45 pmBOS-CWL
18h 55m1 stop
KLM Logo
5:15 pm - 6:20 pmCWL-BOS
30h 05m1 stop
$698KLM
Find Deal
Tue, Oct 14 - Tue, Oct 21
Air France Logo
9:10 pm - 4:45 pmJFK-CWL
14h 35m1 stop
Air France Logo
5:15 pm - 3:25 pmCWL-JFK
27h 10m1 stop
$698Air France
Find Deal
Tue, Oct 7 - Mon, Oct 13
Delta Logo
10:29 am - 9:15 amJFK-CWL
17h 46m2 stops
Delta Logo
9:50 am - 7:05 pmCWL-JFK
14h 15m1 stop
$703Delta
Find Deal
Tue, Oct 14 - Tue, Oct 21
KLM Logo
12:55 pm - 9:50 amEWR-CWL
16h 55m2 stops
KLM Logo
10:20 am - 11:10 pmCWL-EWR
17h 50m2 stops
$704KLM
Find Deal
Tue, Oct 28 - Tue, Nov 4
Delta Logo
12:59 pm - 9:50 amLGA-CWL
16h 51m2 stops
Delta Logo
10:20 am - 11:37 pmCWL-LGA
18h 17m2 stops
$713Delta
Find Deal
Tue, Oct 28 - Tue, Nov 4
Virgin Atlantic Logo
12:50 am - 5:05 pmJFK-CWL
11h 15m1 stop
Virgin Atlantic Logo
9:50 am - 9:45 pmCWL-JFK
16h 55m2 stops
$853Virgin Atlantic
Find Deal
Fri, Sep 26 - Tue, Sep 30
Virgin Atlantic Logo
5:49 pm - 4:55 pmLEX-CWL
18h 06m2 stops
Virgin Atlantic Logo
5:30 pm - 11:55 pmCWL-LEX
34h 25m2 stops
$967Virgin Atlantic
Find Deal
Wed, Mar 4 - Sun, Mar 8

Delta flights from United States to Cardiff

Our best Delta deals on United States to Cardiff flight tickets
Delta
Oct 14
JFK10:29 amNew York John F Kennedy Intl
17h 46m
2 stops
CWL9:15 amCardiff Wales
Oct 21
CWL9:50 amCardiff Wales
14h 15m
1 stop
JFK7:05 pmNew York John F Kennedy Intl
$703
Find similar
Delta
Oct 28
LGA12:59 pmNew York LaGuardia
16h 51m
2 stops
CWL9:50 amCardiff Wales
Nov 4
CWL10:20 amCardiff Wales
18h 17m
2 stops
LGA11:37 pmNew York LaGuardia
$713
Find similar
Delta
Jan 29
BOS7:10 pmBoston Logan Intl
16h 35m
1 stop
CWL4:45 pmCardiff Wales
Feb 1
CWL10:20 amCardiff Wales
13h 35m
1 stop
BOS6:55 pmBoston Logan Intl
$816
Find similar

KLM flights from United States to Cardiff

Our best KLM deals on United States to Cardiff flight tickets
KLM
Oct 14
BOS4:50 pmBoston Logan Intl
18h 55m
1 stop
CWL4:45 pmCardiff Wales
Oct 21
CWL5:15 pmCardiff Wales
30h 05m
1 stop
BOS6:20 pmBoston Logan Intl
$698
Find similar
KLM
Oct 28
EWR12:55 pmNewark
16h 55m
2 stops
CWL9:50 amCardiff Wales
Nov 4
CWL10:20 amCardiff Wales
17h 50m
2 stops
EWR11:10 pmNewark
$704
Find similar
KLM
Feb 18
JFK4:45 pmNew York John F Kennedy Intl
19h 10m
1 stop
CWL4:55 pmCardiff Wales
Feb 23
CWL5:15 pmCardiff Wales
23h 15m
1 stop
JFK11:30 amNew York John F Kennedy Intl
$706
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 September 15, 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

NewarkCardiff

EWR - CWL

EWRCWL

Newark

Sat 11/22

10:00 pm-8:55 pm

2 stops17h 55m

Cardiff Wales

Sun 11/30

9:20 pm-3:43 pm

2 stops23h 23m

$478

New YorkCardiff

JFK - CWL

JFKCWL

New York John F Kennedy Intl

Sat 11/22

9:00 pm-8:55 pm

2 stops18h 55m

Cardiff Wales

Sun 11/30

9:20 pm-8:58 pm

3 stops28h 38m

$478

New YorkCardiff

JFK - CWL

JFKCWL

New York John F Kennedy Intl

Sun 11/23

7:05 pm-11:05 pm

2 stops23h 00m

Cardiff Wales

Thu 11/27

10:30 am-7:25 pm

1 stop13h 55m

$521

BostonCardiff

BOS - CWL

BOSCWL

Boston Logan Intl

Tue 10/14

4:50 pm-4:45 pm

1 stop18h 55m

Cardiff Wales

Tue 10/21

5:15 pm-6:20 pm

1 stop30h 05m

$698

New YorkCardiff

JFK - CWL

JFKCWL

New York John F Kennedy Intl

Tue 10/7

9:10 pm-4:45 pm

1 stop14h 35m

Cardiff Wales

Mon 10/13

5:15 pm-3:25 pm

1 stop27h 10m

$698

New YorkCardiff

JFK - CWL

JFKCWL

New York John F Kennedy Intl

Tue 10/14

10:29 am-9:15 am

2 stops17h 46m

Cardiff Wales

Tue 10/21

9:50 am-7:05 pm

1 stop14h 15m

$703

NewarkCardiff

EWR - CWL

EWRCWL

Newark

Tue 10/28

12:55 pm-9:50 am

2 stops16h 55m

Cardiff Wales

Tue 11/4

10:20 am-11:10 pm

2 stops17h 50m

$704

New YorkCardiff

LGA - CWL

LGACWL

New York LaGuardia

Tue 10/28

12:59 pm-9:50 am

2 stops16h 51m

Cardiff Wales

Tue 11/4

10:20 am-11:37 pm

2 stops18h 17m

$713

New YorkCardiff

JFK - CWL

JFKCWL

New York John F Kennedy Intl

Fri 9/26

12:50 am-5:05 pm

1 stop11h 15m

Cardiff Wales

Tue 9/30

9:50 am-9:45 pm

2 stops16h 55m

$853

LexingtonCardiff

LEX - CWL

LEXCWL

Lexington Blue Grass

Wed 3/4

5:49 pm-4:55 pm

2 stops18h 06m

Cardiff Wales

Sun 3/8

5:30 pm-11:55 pm

2 stops34h 25m

$967

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 14% 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
7.8
1,385 reviews
Search KLM flights
DeltaPriceFrom $793Free CancellationRating
7.9
7,954 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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