How long is the flight from Cardiff to Chicago O'Hare Intl Airport?

Air France can get you from Cardiff to Chicago O'Hare Intl Airport in just under 27h. Your travel time can differ by up to . Cardiff and Chicago O'Hare Intl Airport are separated by a distance of 3831 mi.

In terms of precipitation, rainfall in Chicago O'Hare Intl Airport ranges from 43.0 - 125.0 inches per month. August is typically the wettest month, when rainfall can reach 125.0 mm. January is typically the driest time to visit Chicago O'Hare Intl Airport when rainfall is around 43.0 mm.

If weather is an important factor for your trip to Chicago O'Hare Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -5.0 C).

What is the cheapest time of day to fly from CWL to ORD?

When flying from Cardiff to Chicago O'Hare Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What airport do you fly from for flights from Cardiff to Chicago O'Hare Intl?

If you book a flight to Chicago O'Hare Intl from Cardiff, you will be flying from Cardiff Wales, which is the city’s only airport. Cardiff Wales (CWL) is located 9.1 mi from the center of Cardiff. There are 0 flights from Cardiff Wales to Chicago O'Hare Intl per day from 1 airline.

Can I find deals for flights from Cardiff to O'Hare Intl that include hotel bookings?

Yes. In addition to deals on Cardiff to O'Hare Intl flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Cardiff to O'Hare Intl?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Cardiff to O'Hare Intl.

Can I find deals for business class flights from Cardiff to O'Hare Intl?

Yes. Cheapflights offers flight deals from Cardiff to O'Hare Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£450+ Cheap Flights from Cardiff to Chicago O'Hare Intl Airport

Cheap flight deals from Cardiff to O'Hare Intl

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

Cheapest flights from Cardiff to O'Hare Intl
Explore the most affordable flight options available from Cardiff to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 24 September 2026.

Sat 7/1108:15 -

1 stop11h 55m

Sat 14/1120:05 -

1 stop11h 50m

Deal found 23/9£550

Mon 12/1017:15 -

1 stop27h 00m

Sun 18/1016:15 -

1 stop18h 30m

Deal found 22/9£602

Mon 16/1108:35 -

2 stops16h 09m

Wed 18/1120:05 -

1 stop10h 55m

Deal found 23/9£619

Mon 12/1017:15 -

2 stops55h 05m

Sun 18/1015:05 -

2 stops36h 10m

Deal found 22/9£888

Find flight deals from Cardiff to O'Hare Intl

Round-trip from	£550
One-way from	£450

7/11-14/11
2 total stops
23h 45m total
Cardiff to Chicago

Search Deals

30/9-31/12
3 total stops
35h 40m total
Cardiff to Chicago

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Cardiff to Chicago O'Hare Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

CardiffChicago

CWL Cardiff Wales - ORD Chicago O'Hare Intl

CWLORD

Cardiff Wales

Wed 30/9

07:00-12:40

3 stops35h 40m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£450

CardiffChicago

CWL Cardiff Wales - ORD Chicago O'Hare Intl

CWLORD

Cardiff Wales

Sat 24/10

07:30-11:40

3 stops58h 10m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£469

Fastest return journey

CardiffChicago

CWL Cardiff Wales - ORD Chicago O'Hare Intl

CWLORD

Cardiff Wales

Sat 7/11

08:15-14:10

1 stop11h 55m

Chicago O'Hare Intl

Sat 14/11

20:05-13:55

1 stop11h 50m

£550

CardiffChicago

CWL Cardiff Wales - ORD Chicago O'Hare Intl

CWLORD

Cardiff Wales

Sun 3/1

14:25-09:13

3 stops48h 48m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£565

CardiffChicago

CWL Cardiff Wales - ORD Chicago O'Hare Intl

CWLORD

Cardiff Wales

Mon 12/10

17:15-14:15

1 stop27h 00m

Chicago O'Hare Intl

Sun 18/10

16:15-16:45

1 stop18h 30m

£602

CardiffChicago

CWL Cardiff Wales - ORD Chicago O'Hare Intl

CWLORD

Cardiff Wales

Mon 16/11

08:35-17:20

2 stops14h 45m

Chicago O'Hare Intl

Wed 18/11

18:30-17:00

3 stops16h 30m

£870

CardiffChicago

CWL Cardiff Wales - ORD Chicago O'Hare Intl

CWLORD

Cardiff Wales

Mon 12/10

17:15-22:06

2 stops34h 51m

Chicago O'Hare Intl

Sun 18/10

19:25-09:15

3 stops31h 50m

£979

Flights are sorted by cheapest return flights first.

Deals found on 21/9

Sorted by cheapest first

Best time to book a flight from Cardiff to O'Hare Intl

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Cardiff with our price prediction graph.

CWL-ORD

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Reviews of airlines servicing O'Hare Intl

See what other customers who have flown with KLM from Cardiff to Chicago O'Hare Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

KLM

7.8

Good

1,576 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Kushal,Sept 2026

QRO - ATL

It was a nice one. Crew were friendly and helpful.

KLM

7.8

Good

1,576 reviews

KLM

7.8

Good

1,576 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Kushal,Sept 2026

QRO - ATL

It was a nice one. Crew were friendly and helpful.

Related info for your journey

What airport do you fly from for flights from Cardiff to Chicago O'Hare Intl?
If you book a flight to Chicago O'Hare Intl from Cardiff, you will be flying from Cardiff Wales, which is the city’s only airport. Cardiff Wales (CWL) is located 9.1 mi from the center of Cardiff. There are 0 flights from Cardiff Wales to Chicago O'Hare Intl per day from 1 airline.
How long is the flight from Cardiff to Chicago O'Hare Intl Airport?
Air France can get you from Cardiff to Chicago O'Hare Intl Airport in just under 27h. Your travel time can differ by up to . Cardiff and Chicago O'Hare Intl Airport are separated by a distance of 3831 mi.
Can I find deals for flights from Cardiff to O'Hare Intl that include hotel bookings?
Yes. In addition to deals on Cardiff to O'Hare Intl flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Cardiff to O'Hare Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Cardiff to O'Hare Intl.
Can I find deals for business class flights from Cardiff to O'Hare Intl?
Yes. Cheapflights offers flight deals from Cardiff to O'Hare Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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Top airline flying from Cardiff to O'Hare Intl

Airline	Cheapest	Average	Flexibility	On-time
KLM	Cheapest£705	Average£709	FlexibilityNo cancel fee	On-time75%	Search KLM flights

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Why should you use Cheapflights to find cheap flight tickets from Cardiff to O'Hare Intl?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Cardiff to O'Hare Intl.

Can Cheapflights find flights from Cardiff to O'Hare Intl with no change fees?

Need flexible booking options for your flight to O'Hare Intl from Cardiff? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Cardiff to O'Hare Intl become cheaper?

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Cheap flights from Cardiff to Chicago O'Hare Intl Airport from £450

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 30/9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Cardiff to O'Hare Intl

Cheapest flights from Cardiff to O'Hare IntlExplore the most affordable flight options available from Cardiff to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 24 September 2026.

Explore the most affordable flight options available from Cardiff to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 24 September 2026.

Best flights from Cardiff to O'Hare IntlDiscover carefully curated flight deals from Cardiff to O'Hare Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 24 September 2026.

Discover carefully curated flight deals from Cardiff to O'Hare Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 24 September 2026.

Last-minute flights from Cardiff to O'Hare IntlDiscover last-minute flight deals from Cardiff to O'Hare Intl. Data last updated 24 September 2026 and is based on user searches.

Discover last-minute flight deals from Cardiff to O'Hare Intl. Data last updated 24 September 2026 and is based on user searches.

One-way flights from Cardiff to O'Hare IntlSearch for one-way flight options from Cardiff to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated 24 September 2026.

Search for one-way flight options from Cardiff to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated 24 September 2026.

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Use the filters below to find and compare flights from Cardiff to Chicago O'Hare Intl Airport that are best for you.

Best time to book a flight from Cardiff to O'Hare Intl

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Cardiff with our price prediction graph.

Reviews of airlines servicing O'Hare Intl

See what other customers who have flown with KLM from Cardiff to Chicago O'Hare Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

What airport do you fly from for flights from Cardiff to Chicago O'Hare Intl?

How long is the flight from Cardiff to Chicago O'Hare Intl Airport?

Can I find deals for flights from Cardiff to O'Hare Intl that include hotel bookings?

How can I find direct flights from Cardiff to O'Hare Intl?

Can I find deals for business class flights from Cardiff to O'Hare Intl?

Travelling to a place near Chicago O'Hare Intl Airport?

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Alternative routes for Cardiff to O'Hare Intl

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Direct flights to Illinois

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Other flights to O'Hare Intl

Explore flights to O'Hare Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 24 September 2026.

Cardiff and O'Hare Intl flights

Browse other Cardiff and O'Hare Intl flight options. Last updated on 24 September 2026.

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Cheapest flights from Cardiff to O'Hare Intl
Explore the most affordable flight options available from Cardiff to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 24 September 2026.

Best flights from Cardiff to O'Hare Intl
Discover carefully curated flight deals from Cardiff to O'Hare Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 24 September 2026.

Last-minute flights from Cardiff to O'Hare Intl
Discover last-minute flight deals from Cardiff to O'Hare Intl. Data last updated 24 September 2026 and is based on user searches.

One-way flights from Cardiff to O'Hare Intl
Search for one-way flight options from Cardiff to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated 24 September 2026.