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Cheap flights from Cardiff to Chicago O'Hare Intl Airport from £342

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 19/8. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — ORD
27 Jul — 3 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Cardiff to O'Hare Intl

Enter your travel dates to find the best prices.

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 27 June 2026.

Tue 4/823:15
CWL
-
ORD
2 stops25h 00m
Multiple Airlines
Tue 18/815:45
ORD
-
CWL
1 stop25h 05m
Multiple Airlines
Deal found 23/6£808
Wed 12/823:15
CWL
-
ORD
1 stop20h 45m
Multiple Airlines
Wed 19/815:45
ORD
-
CWL
1 stop24h 40m
Multiple Airlines
Deal found 24/6£843
Thu 6/811:35
CWL
-
ORD
1 stop14h 17m
Multiple Airlines
Sun 9/817:35
ORD
-
CWL
2 stops22h 10m
Multiple Airlines
Deal found 26/6£866

Find flight deals from Cardiff to O'Hare Intl

Discover tips and strategies to find the most affordable flight options for your journey from Cardiff (CWL) to O'Hare Intl (ORD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 27 June 2026.

Round-trip from

£808

One-way from

£342
4/8-18/8
  • 4/8-18/8
  • 3 total stops
  • 50h 05m total
  • Cardiff to Chicago
Search Deals
19/8
  • 19/8
  • 3 total stops
  • 27h 15m total
  • Cardiff to Chicago
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Cardiff to O'Hare Intl 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, Cheapflights users made 858,174 searches. Data last updated 27 June 2026.
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 - ORD

CWLORD

Cardiff Wales

Thu 6/8

11:35-19:52

1 stop14h 17m

Chicago O'Hare Intl

Sun 9/8

17:35-21:45

2 stops22h 10m

£866

CardiffChicago

CWL - ORD

CWLORD

Cardiff Wales

Wed 12/8

17:15-19:15

3 stops32h 00m

Chicago O'Hare Intl

Wed 19/8

19:25-09:15

3 stops31h 50m

£905

CardiffChicago

CWL - ORD

CWLORD

Cardiff Wales

Fri 7/8

22:45-14:00

1 stop21h 15m

Chicago O'Hare Intl

Fri 14/8

22:25-09:10

2 stops28h 45m

£968

CardiffChicago

CWL - ORD

CWLORD

Cardiff Wales

Tue 4/8

17:15-19:50

3 stops32h 35m

Chicago O'Hare Intl

Tue 18/8

11:05-22:50

3 stops29h 45m

£1,011

CardiffChicago

CWL - ORD

CWLORD

Cardiff Wales

Tue 11/8

17:15-14:30

1 stop27h 15m

Chicago O'Hare Intl

Fri 21/8

16:20-17:05

1 stop18h 45m

£1,045

CardiffChicago

CWL - ORD

CWLORD

Cardiff Wales

Sat 15/8

17:35-14:15

1 stop26h 40m

Chicago O'Hare Intl

Sun 23/8

16:20-16:45

1 stop18h 25m

£1,045

CardiffChicago

CWL - ORD

CWLORD

Cardiff Wales

Tue 11/8

09:45-22:44

2 stops18h 59m

Chicago O'Hare Intl

Fri 21/8

10:07-09:15

2 stops17h 08m

£1,049
Fastest return journey

CardiffChicago

CWL - ORD

CWLORD

Cardiff Wales

Sat 15/8

09:50-20:30

2 stops16h 40m

Chicago O'Hare Intl

Sun 23/8

10:30-09:15

2 stops16h 45m

£1,049
Cheapest one-way
Fastest single journey

CardiffChicago

CWL - ORD

CWLORD

Cardiff Wales

Wed 19/8

23:15-20:30

3 stops27h 15m

£342

CardiffChicago

CWL - ORD

CWLORD

Cardiff Wales

Sat 11/7

11:35-16:40

2 stops59h 05m

£898

Flights are sorted by cheapest return flights first.

Deals found on 25/6

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.
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

Get insights into the airlines that provide service to O'Hare Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to O'Hare Intl. Reviews last updated 27 June 2026.
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
1,531 reviews
Check prices

Entertainment

7.2

Boarding

7.8

Comfort

7.7

Food

7.3

Crew

8.4

Overall

7.8

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
KLM
7.8
Good
1,531 reviews
KLM
7.8
Good
1,531 reviews
Check prices

Entertainment

7.2

Boarding

7.8

Comfort

7.7

Food

7.3

Crew

8.4

Overall

7.8

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful

Related info for your journey

Find useful and relevant information for your journey from Cardiff to O'Hare Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • 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.

See more FAQs

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

Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locations
Elk Grove Village

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Alternative routes for Cardiff to O'Hare Intl

See prices for flight routes from nearby airports that may be better suited for you.
Manchester to O'Hare Intl flights
Manchester to Midway flights
Bristol to O'Hare Intl flights
Cardiff to Midway flights
Bristol to Midway flights

Top airline flying from Cardiff to O'Hare Intl

Discover the top airline that operate flights from Cardiff to O'Hare Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 27 June 2026.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest£709Average£713FlexibilityNo cancel feeOn-time75%
Search KLM flights

Fly with Cheapflights

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How does Cheapflights help users find flights 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?

Not ready to book yet? You can track prices for flights from Cardiff to O'Hare Intl on Cheapflights with our Price Alert feature and get notified when better prices are available.

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