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

Virgin Atlantic, KLM, and Delta can get you from Cardiff to Chicago O'Hare Intl Airport in just under 15h 17m. Your travel time can differ by up to 15h 45m. Cardiff and Chicago O'Hare Intl Airport are separated by a distance of 3831 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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.

£677+ 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

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 31 October 2026.

Thu 10/1213:25 -

1 stop10h 55m

Thu 17/1215:55 -

1 stop17h 45m

Deal found 26/10£747

Thu 10/1210:20 -

2 stops19h 36m

Thu 17/1213:35 -

2 stops14h 15m

Deal found 26/10£922

Find flight deals from Cardiff to O'Hare Intl

Round-trip from	£677

Virgin Atlantic
20/1-26/1
3 total stops
44h 27m 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 20/1

17:30-14:25

1 stop26h 55m

Chicago O'Hare Intl

Tue 26/1

10:18-09:50

2 stops17h 32m

£677

CardiffChicago

CWL Cardiff Wales - ORD Chicago O'Hare Intl

CWLORD

Cardiff Wales

Fri 19/3

17:30-15:25

1 stop26h 55m

Chicago O'Hare Intl

Tue 23/3

10:30-09:50

2 stops18h 20m

£677

CardiffChicago

CWL Cardiff Wales - ORD Chicago O'Hare Intl

CWLORD

Cardiff Wales

Wed 20/1

17:30-18:32

2 stops31h 02m

Chicago O'Hare Intl

Tue 26/1

10:33-09:50

2 stops17h 17m

£681

CardiffChicago

CWL Cardiff Wales - ORD Chicago O'Hare Intl

CWLORD

Cardiff Wales

Fri 19/3

10:20-20:37

2 stops15h 17m

Chicago O'Hare Intl

Tue 23/3

13:30-09:50

2 stops15h 20m

£681

Fastest return journey

CardiffChicago

CWL Cardiff Wales - ORD Chicago O'Hare Intl

CWLORD

Cardiff Wales

Thu 10/12

13:25-18:20

1 stop10h 55m

Chicago O'Hare Intl

Thu 17/12

15:55-15:40

1 stop17h 45m

£747

CardiffChicago

CWL Cardiff Wales - ORD Chicago O'Hare Intl

CWLORD

Cardiff Wales

Thu 10/12

10:20-23:56

2 stops19h 36m

Chicago O'Hare Intl

Thu 17/12

13:35-09:50

2 stops14h 15m

£922

Flights are sorted by cheapest return flights first.

Deals found on 30/10

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

1,595 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

1,595 reviews

KLM

7.8

Good

1,595 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?
Virgin Atlantic, KLM, and Delta can get you from Cardiff to Chicago O'Hare Intl Airport in just under 15h 17m. Your travel time can differ by up to 15h 45m. Cardiff and Chicago O'Hare Intl Airport are separated by a distance of 3831 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
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£699	Average£702	FlexibilityNo cancel fee	On-time75%	Search KLM flights

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Cheapflights makes it easy to find Cardiff to O'Hare Intl flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

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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 £677

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 20/1. 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 31 October 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 31 October 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 31 October 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 31 October 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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Complete your trip

Complete your trip to O'Hare Intl by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to Illinois

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Search flights from Cardiff to O'Hare Intl by cabin class

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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 31 October 2026.

Cardiff and O'Hare Intl flights

Browse other Cardiff and O'Hare Intl flight options. Last updated on 31 October 2026.

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Top airline flying from Cardiff to O'Hare Intl

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

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

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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 31 October 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 31 October 2026.