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Cheap flights from the United States to Cardiff from $257

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 7/21. 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
1 adult, Economy, 0 bags

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
8:30 pm - 9:45 pm
JFK
-
CWL
20h 15m
2 stops
Multiple Airlines Logo
11:15 pm - 10:05 pm
CWL
-
JFK
27h 50m
2 stops
$665Multiple Airlines
Sun, Aug 2 - Tue, Aug 18
Multiple Airlines Logo
5:25 pm - 10:50 pm
BOS
-
CWL
24h 25m
1 stop
Multiple Airlines Logo
11:15 pm - 7:41 pm
CWL
-
BOS
25h 26m
2 stops
$694Multiple Airlines
Mon, Aug 17 - Tue, Aug 25
KLM Logo
1:50 pm - 9:15 am
LAX
-
CWL
35h 25m
1 stop
KLM Logo
5:15 pm - 2:45 pm
CWL
-
LAX
29h 30m
1 stop
$1,024KLM
Wed, Sep 23 - Tue, Sep 29
KLM Logo
1:50 pm - 9:15 am
LAX
-
CWL
35h 25m
1 stop
KLM Logo
5:15 pm - 2:45 pm
CWL
-
LAX
29h 30m
1 stop
$1,025KLM
Wed, Sep 23 - Tue, Sep 29
Delta Logo
1:50 pm - 4:45 pm
LAX
-
CWL
18h 55m
1 stop
Delta Logo
9:45 am - 12:24 am
CWL
-
LAX
22h 39m
2 stops
$1,034Delta
Wed, Sep 23 - Tue, Sep 29
Delta Logo
6:10 am - 9:15 am
LAX
-
CWL
19h 05m
2 stops
Delta Logo
9:45 am - 12:24 am
CWL
-
LAX
22h 39m
2 stops
$1,038Delta
Wed, Sep 23 - Tue, Sep 29
Virgin Atlantic Logo
4:45 pm - 9:15 am
LAX
-
CWL
32h 30m
1 stop
Virgin Atlantic Logo
5:15 pm - 11:50 am
CWL
-
LAX
26h 35m
1 stop
$1,079Virgin Atlantic
Sun, Aug 9 - Mon, Aug 24
Virgin Atlantic Logo
3:10 pm - 4:45 pm
LAX
-
CWL
17h 35m
2 stops
Virgin Atlantic Logo
5:15 pm - 2:45 pm
CWL
-
LAX
29h 30m
1 stop
$1,084Virgin Atlantic
Sun, Aug 9 - Mon, Aug 24
Air France Logo
4:00 pm - 4:45 pm
MSP
-
CWL
18h 45m
1 stop
Air France Logo
9:45 am - 11:20 am
CWL
-
MSP
31h 35m
1 stop
$1,235Air France
Thu, Jul 30 - Thu, Aug 6
Air France Logo
4:00 pm - 4:45 pm
MSP
-
CWL
18h 45m
1 stop
Air France Logo
9:45 am - 11:20 am
CWL
-
MSP
31h 35m
1 stop
$1,236Air France
Thu, Jul 30 - Thu, Aug 6

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Air France flights from United States to Cardiff

Our best Air France deals on United States to Cardiff flight tickets
Air France
Sep 1
JFK4:40 pmNew York John F Kennedy Intl
19h 05m
1 stop
CWL4:45 pmCardiff Wales
Sep 9
CWL5:15 pmCardiff Wales
31h 00m
1 stop
JFK7:15 pmNew York John F Kennedy Intl
$1,095
Air France
Aug 10
SEA1:50 pmSeattle/Tacoma Intl
18h 55m
1 stop
CWL4:45 pmCardiff Wales
Aug 17
CWL5:15 pmCardiff Wales
31h 12m
1 stop
SEA4:27 pmSeattle/Tacoma Intl
$1,205
Air France
Jul 30
MSP4:00 pmMinneapolis St Paul
18h 45m
1 stop
CWL4:45 pmCardiff Wales
Aug 6
CWL9:45 amCardiff Wales
31h 35m
1 stop
MSP11:20 amMinneapolis St Paul
$1,235

Delta flights from United States to Cardiff

Our best Delta deals on United States to Cardiff flight tickets
Delta
Sep 23
LAX1:50 pmLos Angeles
18h 55m
1 stop
CWL4:45 pmCardiff Wales
Sep 29
CWL9:45 amCardiff Wales
22h 39m
2 stops
LAX12:24 amLos Angeles
$1,034
Delta
Sep 23
LAX6:10 amLos Angeles
19h 05m
2 stops
CWL9:15 amCardiff Wales
Sep 29
CWL9:45 amCardiff Wales
22h 39m
2 stops
LAX12:24 amLos Angeles
$1,038
Delta
Sep 23
LAX11:45 amLos Angeles
21h 00m
2 stops
CWL4:45 pmCardiff Wales
Sep 29
CWL9:45 amCardiff Wales
22h 39m
2 stops
LAX12:24 amLos Angeles
$1,039

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 June 20, 2026.
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

Cheapest round-trip

New YorkCardiff

JFK - CWL

JFKCWL

New York John F Kennedy Intl

Sun 8/2

8:30 pm-9:45 pm

2 stops20h 15m

Cardiff Wales

Tue 8/18

11:15 pm-10:05 pm

2 stops27h 50m

$665

BostonCardiff

BOS - CWL

BOSCWL

Boston Logan Intl

Mon 8/17

5:25 pm-10:50 pm

1 stop24h 25m

Cardiff Wales

Tue 8/25

11:15 pm-7:41 pm

2 stops25h 26m

$694

Los AngelesCardiff

LAX - CWL

LAXCWL

Los Angeles

Wed 9/23

1:50 pm-9:15 am

1 stop35h 25m

Cardiff Wales

Tue 9/29

5:15 pm-2:45 pm

1 stop29h 30m

$1,024

Los AngelesCardiff

LAX - CWL

LAXCWL

Los Angeles

Wed 9/23

1:50 pm-9:15 am

1 stop35h 25m

Cardiff Wales

Tue 9/29

5:15 pm-2:45 pm

1 stop29h 30m

$1,025
Quickest round-trip

Los AngelesCardiff

LAX - CWL

LAXCWL

Los Angeles

Wed 9/23

1:50 pm-4:45 pm

1 stop18h 55m

Cardiff Wales

Tue 9/29

9:45 am-12:24 am

2 stops22h 39m

$1,034

Los AngelesCardiff

LAX - CWL

LAXCWL

Los Angeles

Wed 9/23

6:10 am-9:15 am

2 stops19h 05m

Cardiff Wales

Tue 9/29

9:45 am-12:24 am

2 stops22h 39m

$1,038

Los AngelesCardiff

LAX - CWL

LAXCWL

Los Angeles

Sun 8/9

4:45 pm-9:15 am

1 stop32h 30m

Cardiff Wales

Mon 8/24

5:15 pm-11:50 am

1 stop26h 35m

$1,079

Los AngelesCardiff

LAX - CWL

LAXCWL

Los Angeles

Sun 8/9

3:10 pm-4:45 pm

2 stops17h 35m

Cardiff Wales

Mon 8/24

5:15 pm-2:45 pm

1 stop29h 30m

$1,084

MinneapolisCardiff

MSP - CWL

MSPCWL

Minneapolis St Paul

Thu 7/30

4:00 pm-4:45 pm

1 stop18h 45m

Cardiff Wales

Thu 8/6

9:45 am-11:20 am

1 stop31h 35m

$1,235

MinneapolisCardiff

MSP - CWL

MSPCWL

Minneapolis St Paul

Thu 7/30

4:00 pm-4:45 pm

1 stop18h 45m

Cardiff Wales

Thu 8/6

9:45 am-11:20 am

1 stop31h 35m

$1,236

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 month to fly to Cardiff?

The month of December is, on average, the cheapest month to fly to Cardiff from United States, with most prices found around $0. If you aren’t able to travel to Cardiff during the month of December, then flying in August is also cheap. Prices for this month can be found on momondo for an average of $566.

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

You could potentially save up to 33% 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

Fastest flight time

9h 00m

Direct flights

None
The fastest flight from United States to Cardiff takes 9h 00m
There are no direct flights from United States to Cardiff. There are no popular flight routes from United States to Cardiff.
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Frequently asked questions about flying from the United States to Cardiff

  • 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 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.

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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Aer Lingus