Which airlines fly to Cardiff?

Aer Lingus and KLM are the most popular airlines that fly from United States to Cardiff on a routine basis, according to our data. You should be able to find flights to Cardiff with these airlines and other airlines flying from United States.

How long does it take to fly to Cardiff?

If you’re flying from a popular airport in United States, such as Los Angeles or San Francisco, and flying into Cardiff, then you can expect flight times to average 16h and 20h 15m, respectively.

$255 Cheap Flights to Cardiff in 2026

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Find the cheapest flights from the United States to Cardiff

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:25 pm - 10:25 pm

EWR

CWL

21h 00m

2 stops

11:50 pm - 7:05 pm

CWL

EWR

24h 15m

3 stops

$660Multiple Airlines

Wed, Aug 26 - Wed, Sep 2

11:00 pm - 10:50 pm

BOS

CWL

42h 50m

2 stops

11:35 am - 10:30 am

CWL

BOS

27h 55m

1 stop

$689Multiple Airlines

Mon, Aug 24 - Tue, Sep 8

11:25 am - 10:15 am

IAD

CWL

17h 50m

1 stop

11:35 am - 10:45 am

CWL

IAD

28h 10m

1 stop

$699Multiple Airlines

Sun, Sep 6 - Thu, Sep 10

6:55 pm - 4:45 pm

PHL

CWL

16h 50m

2 stops

9:45 am - 10:16 pm

CWL

PHL

17h 31m

2 stops

$1,005KLM

Wed, Aug 26 - Wed, Sep 2

1:15 pm - 9:15 am

PHL

CWL

15h 00m

2 stops

5:15 pm - 4:17 pm

CWL

PHL

28h 02m

2 stops

$1,012KLM

Tue, Sep 1 - Wed, Sep 9

1:50 pm - 4:45 pm

SEA

CWL

18h 55m

1 stop

9:45 am - 4:27 pm

CWL

SEA

14h 42m

1 stop

$1,120Delta

Wed, Aug 12 - Tue, Aug 18

11:05 am - 4:45 pm

SEA

CWL

21h 40m

2 stops

9:45 am - 11:11 pm

CWL

SEA

21h 26m

2 stops

$1,135Delta

Wed, Aug 12 - Tue, Aug 18

6:20 pm - 9:15 am

BWI

CWL

57h 55m

2 stops

5:15 pm - 11:13 pm

CWL

BWI

34h 58m

2 stops

$1,224Virgin Atlantic

Sun, Aug 30 - Sun, Sep 6

4:52 pm - 10:15 am

MDW

CWL

35h 23m

3 stops

11:35 am - 9:07 am

CWL

MDW

27h 32m

2 stops

$1,231WestJet

Sat, Sep 5 - Tue, Sep 8

4:52 pm - 10:15 am

MDW

CWL

35h 23m

3 stops

11:35 am - 1:20 pm

CWL

MDW

31h 45m

3 stops

$1,281WestJet

Sat, Sep 5 - Tue, Sep 8

Fly from

Route

Depart

Return

Price

Cheapest round-trip

NewarkCardiff

EWR - CWL

EWRCWL

Newark

Wed 8/26

8:25 pm-10:25 pm

2 stops21h 00m

Cardiff Wales

Wed 9/2

11:50 pm-7:05 pm

3 stops24h 15m

$660

BostonCardiff

BOS - CWL

BOSCWL

Boston Logan Intl

Mon 8/24

11:00 pm-10:50 pm

2 stops42h 50m

Cardiff Wales

Tue 9/8

11:35 am-10:30 am

1 stop27h 55m

$689

Washington, D.C.Cardiff

IAD - CWL

IADCWL

Washington, D.C. Dulles Intl

Sun 9/6

11:25 am-10:15 am

1 stop17h 50m

Cardiff Wales

Thu 9/10

11:35 am-10:45 am

1 stop28h 10m

$699

PhiladelphiaCardiff

PHL - CWL

PHLCWL

Philadelphia

Wed 8/26

6:55 pm-4:45 pm

2 stops16h 50m

Cardiff Wales

Wed 9/2

9:45 am-10:16 pm

2 stops17h 31m

$1,005

PhiladelphiaCardiff

PHL - CWL

PHLCWL

Philadelphia

Tue 9/1

1:15 pm-9:15 am

2 stops15h 00m

Cardiff Wales

Wed 9/9

5:15 pm-4:17 pm

2 stops28h 02m

$1,012

Quickest round-trip

SeattleCardiff

SEA - CWL

SEACWL

Seattle/Tacoma Intl

Wed 8/12

1:50 pm-4:45 pm

1 stop18h 55m

Cardiff Wales

Tue 8/18

9:45 am-4:27 pm

1 stop14h 42m

$1,120

SeattleCardiff

SEA - CWL

SEACWL

Seattle/Tacoma Intl

Wed 8/12

11:05 am-4:45 pm

2 stops21h 40m

Cardiff Wales

Tue 8/18

9:45 am-11:11 pm

2 stops21h 26m

$1,135

BaltimoreCardiff

BWI - CWL

BWICWL

Baltimore/Washington

Sun 8/30

6:20 pm-9:15 am

2 stops57h 55m

Cardiff Wales

Sun 9/6

5:15 pm-11:13 pm

2 stops34h 58m

$1,224

ChicagoCardiff

MDW - CWL

MDWCWL

Chicago Midway

Sat 9/5

4:52 pm-10:15 am

3 stops35h 23m

Cardiff Wales

Tue 9/8

11:35 am-9:07 am

2 stops27h 32m

$1,231

ChicagoCardiff

MDW - CWL

MDWCWL

Chicago Midway

Sat 9/5

4:52 pm-10:15 am

3 stops35h 23m

Cardiff Wales

Tue 9/8

11:35 am-1:20 pm

3 stops31h 45m

$1,281

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

Cardiff flights insights and trends

Explore insights for your Cardiff flight to craft the best travel plan

Prices

Other information

What is the cheapest month to fly to Cardiff?

Cheap Cardiff flight deals and tips

Summary info about Cardiff flight prices, duration and airlines

Best One-Way Price	$255
Best Round-Trip Price	$660
Fastest flight time	15h 45m

The best one-way flight price to Cardiff from United States in the last 5 days is $255 (Washington, D.C. Dulles Intl to Cardiff Wales).

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The best round-trip flight price to Cardiff from United States in the last 5 days is $660 (Newark to Cardiff Wales).

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The fastest flight to Cardiff from United States takes 15h 45m (Baltimore/Washington to Cardiff Wales).

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Frequently asked questions about flying to Cardiff

Is there an alternative airport near Cardiff?

Those flying to Cardiff could potentially find better pricing at Bristol Airport (21 mi from Cardiff city center), Swansea Fairwood Comm Airport (39 mi from Cardiff city center), Gloucestershire Airport (52 mi from Cardiff city center), Exeter Airport (52 mi from Cardiff city center) or Brize Norton Airport (71 mi from Cardiff city center) depending on the month and departure airport.

Is there a cheaper alternative to flying into Cardiff?

With an average price of $157 per person, Bristol Airport is the cheapest airport to fly into when planning your trip to Cardiff. This price can fluctuate based on where you are flying from. momondo’s Airport-to-Airport Pricing Tool can help users find the best prices.

What is the absolute cheapest flight to Cardiff?

In the past two weeks, users have booked deals to Cardiff for $59/person, which is 77% cheaper than the average flight to Cardiff. To find the cheapest price to Cardiff from your area, use momondo’s Airport-to-Airport Pricing Tool.

When did momondo last update prices for flights to Cardiff Wales Airport?

Prices for flights to Cardiff Wales Airport are updated daily.

How many operators does momondo search for flights to Cardiff Wales Airport?

The number of operators available for flights to Cardiff Wales Airport is 4 as of July 2026.

How old do you have to be to fly 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 to Cardiff Wales Airport.

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

The travel and health documents you'll need for your trip to Cardiff Wales Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Cardiff Wales Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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Why use momondo?

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

It is quick and easy to find flights to Cardiff on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Cardiff that suits you.

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

All flight searches to Cardiff on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights to Cardiff?

momondo provides multiple filters to help you find the best flight to Cardiff. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes. momondo can track flight prices for Cardiff and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.