Latest deals
When to book
FAQs
Price Alerts

Cheap flights from Chicago O'Hare Intl Airport to Cardiff from $405

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago O'Hare Intl Airport to Cardiff departing on 7/17. 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

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Chicago O'Hare Intl Airport to Cardiff

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
5:25 pm - 9:50 am
ORD
-
CWL
11h 25m
1 stop
Delta Logo
10:20 am - 9:49 pm
CWL
-
ORD
16h 29m
2 stops
$796Delta
Wed, Mar 11 - Wed, Mar 18
Delta Logo
10:40 am - 9:50 am
ORD
-
CWL
18h 10m
2 stops
Delta Logo
10:20 am - 9:49 pm
CWL
-
ORD
16h 29m
2 stops
$801Delta
Wed, Mar 11 - Wed, Mar 18
Multiple Airlines Logo
3:45 pm - 9:20 pm
ORD
-
CWL
23h 35m
1 stop
Multiple Airlines Logo
9:25 am - 6:15 pm
CWL
-
ORD
14h 50m
2 stops
$806Multiple Airlines
Sat, May 2 - Sat, May 9
Multiple Airlines Logo
9:00 pm - 9:20 pm
ORD
-
CWL
18h 20m
1 stop
Multiple Airlines Logo
9:25 am - 7:15 pm
CWL
-
ORD
15h 50m
1 stop
$866Multiple Airlines
Sat, May 2 - Sat, May 9
Air France Logo
5:45 pm - 4:45 pm
ORD
-
CWL
17h 00m
2 stops
Air France Logo
5:15 pm - 2:30 pm
CWL
-
ORD
27h 15m
1 stop
$906Air France
Tue, May 12 - Tue, May 19
KLM Logo
7:07 pm - 4:45 pm
ORD
-
CWL
15h 38m
2 stops
KLM Logo
5:35 pm - 2:58 pm
CWL
-
ORD
27h 23m
2 stops
$916KLM
Sat, May 2 - Sat, May 9
KLM Logo
10:36 am - 9:50 am
ORD
-
CWL
17h 14m
2 stops
KLM Logo
5:25 pm - 3:20 pm
CWL
-
ORD
26h 55m
1 stop
$950KLM
Thu, Mar 5 - Sat, Mar 14
KLM Logo
10:36 am - 9:50 am
ORD
-
CWL
17h 14m
2 stops
KLM Logo
10:20 am - 10:00 am
CWL
-
ORD
28h 40m
2 stops
$1,017KLM
Thu, Mar 5 - Sat, Mar 14
Multiple Airlines Logo
12:05 pm - 8:20 pm
ORD
-
CWL
27h 15m
2 stops
Multiple Airlines Logo
10:50 pm - 2:00 pm
CWL
-
ORD
21h 10m
1 stop
$1,107Multiple Airlines
Sat, Mar 28 - Thu, Apr 2
KLM Logo
4:20 pm - 4:45 pm
ORD
-
CWL
18h 25m
1 stop
KLM Logo
5:15 pm - 2:30 pm
CWL
-
ORD
27h 15m
1 stop
$1,112KLM
Tue, May 12 - Tue, May 19

Air France flights from Chicago O'Hare Intl Airport to Cardiff

Our best Air France deals on Chicago O'Hare Intl Airport to Cardiff flight tickets
Air France
May 12
ORD5:45 pmChicago O'Hare Intl
17h 00m
2 stops
CWL4:45 pmCardiff Wales
May 19
CWL5:15 pmCardiff Wales
27h 15m
1 stop
ORD2:30 pmChicago O'Hare Intl
$906
Air France
Jun 6
ORD4:20 pmChicago O'Hare Intl
18h 25m
1 stop
CWL4:45 pmCardiff Wales
Jun 13
CWL9:45 amCardiff Wales
18h 21m
2 stops
ORD10:06 pmChicago O'Hare Intl
$1,407

KLM flights from Chicago O'Hare Intl Airport to Cardiff

Our best KLM deals on Chicago O'Hare Intl Airport to Cardiff flight tickets
KLM
May 2
ORD7:07 pmChicago O'Hare Intl
15h 38m
2 stops
CWL4:45 pmCardiff Wales
May 9
CWL5:35 pmCardiff Wales
27h 23m
2 stops
ORD2:58 pmChicago O'Hare Intl
$916
KLM
Mar 5
ORD10:36 amChicago O'Hare Intl
17h 14m
2 stops
CWL9:50 amCardiff Wales
Mar 14
CWL5:25 pmCardiff Wales
26h 55m
1 stop
ORD3:20 pmChicago O'Hare Intl
$950
KLM
Mar 5
ORD10:36 amChicago O'Hare Intl
17h 14m
2 stops
CWL9:50 amCardiff Wales
Mar 14
CWL10:20 amCardiff Wales
28h 40m
2 stops
ORD10:00 amChicago O'Hare Intl
$1,017

momondo Fare Finder

 
Customize your flight search to find flights from Chicago O'Hare Intl Airport 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 January 29, 2026.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Cardiff that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Wed 3/11

5:25 pm-9:50 am

1 stop11h 25m

Cardiff Wales

Wed 3/18

10:20 am-9:49 pm

2 stops16h 29m

$796

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Wed 3/11

10:40 am-9:50 am

2 stops18h 10m

Cardiff Wales

Wed 3/18

10:20 am-9:49 pm

2 stops16h 29m

$801

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Sat 5/2

3:45 pm-9:20 pm

1 stop23h 35m

Cardiff Wales

Sat 5/9

9:25 am-6:15 pm

2 stops14h 50m

$806

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Sat 5/2

9:00 pm-9:20 pm

1 stop18h 20m

Cardiff Wales

Sat 5/9

9:25 am-7:15 pm

1 stop15h 50m

$866

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Tue 5/12

5:45 pm-4:45 pm

2 stops17h 00m

Cardiff Wales

Tue 5/19

5:15 pm-2:30 pm

1 stop27h 15m

$906

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Sat 5/2

7:07 pm-4:45 pm

2 stops15h 38m

Cardiff Wales

Sat 5/9

5:35 pm-2:58 pm

2 stops27h 23m

$916

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Thu 3/5

10:36 am-9:50 am

2 stops17h 14m

Cardiff Wales

Sat 3/14

5:25 pm-3:20 pm

1 stop26h 55m

$950

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Thu 3/5

10:36 am-9:50 am

2 stops17h 14m

Cardiff Wales

Sat 3/14

10:20 am-10:00 am

2 stops28h 40m

$1,017

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Sat 3/28

12:05 pm-8:20 pm

2 stops27h 15m

Cardiff Wales

Thu 4/2

10:50 pm-2:00 pm

1 stop21h 10m

$1,107

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Tue 5/12

4:20 pm-4:45 pm

1 stop18h 25m

Cardiff Wales

Tue 5/19

5:15 pm-2:30 pm

1 stop27h 15m

$1,112

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
1
2

When to book flights from Chicago O'Hare Intl Airport to Cardiff

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago O'Hare Intl Airport to Cardiff according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Chicago O'Hare Intl Airport to Cardiff (ORD to CWL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago O'Hare Intl Airport to Cardiff

Fastest flight time

10h 55m

Direct flights

None
The fastest flight from Chicago O'Hare Intl Airport to Cardiff takes 10h 55m
There are no direct flights from Chicago O'Hare Intl Airport to Cardiff. There are no popular flight routes from Chicago O'Hare Intl Airport to Cardiff.
Search flight deals

  • How far is Chicago O'Hare Intl to Cardiff Wales by plane?

    There are 3834.5 mi between Chicago O'Hare Intl and Cardiff Wales. Typically, this will take 10h 55m by plane in normal conditions.

  • When did momondo last update prices for flights from Chicago O'Hare Intl Airport to Cardiff Wales Airport?

    Prices for flights from Chicago O'Hare Intl Airport to Cardiff Wales Airport are updated daily.

  • How old do you have to be to fly from Chicago O'Hare Intl Airport to Cardiff Wales Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Chicago O'Hare Intl Airport 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.

  • How do I get Price Alerts for flights from Chicago O'Hare Intl Airport to Cardiff?

    You can take advantage of momondo’s Price Alerts by first searching for your flights to Chicago O'Hare Intl Airport from Cardiff. Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.

  • How can I save money on flights from Chicago O'Hare Intl Airport to Cardiff with momondo?

    With “Price Forecast”, learn how soon you should book your flight in advance. Down to the day of week and time of day, our information can inform you on the ideal time to book to save on your travel. Our “Price Calendar” shows you at a quick glance when to book your travel for lower rates. By setting “Price Alerts” you can monitor changes in price and target the ideal time to book. Search for your trip destination by budget amount via our “Explore” feature. Whether you’re looking for ideas for your next travel adventure or cost-cutting tips, our “Discover” content is a great place to start.

  • How does momondo find its flight prices?

    We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Chicago to Cardiff. Millions of users trust and use momondo every year so you are in good hands.

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

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

How can momondo help me find flights from Chicago to Cardiff?

Once all potential Chicago to Cardiff flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

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

An easier way to manage your Cardiff trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 2/28
Sat 3/7
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United Kingdom

Fly your favorite airline to Cardiff

Airlines are sorted and displayed according to clicks in the past 7 days on momondo
Aer Lingus