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Cheap flights from Cardiff to Chicago O'Hare Intl Airport from £373

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 21/5. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — ORD
21 Apr — 28 Apr1
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 22 March 2026.

Tue 5/517:15
CWL
-
ORD
1 stop27h 15m
KLM
Tue 12/516:20
ORD
-
CWL
1 stop18h 25m
KLM
Deal found 21/3£672
Mon 4/509:45
CWL
-
ORD
2 stops16h 55m
KLM
Mon 11/516:50
ORD
-
CWL
1 stop10h 25m
KLM
Deal found 20/3£676
Sat 2/507:30
CWL
-
ORD
1 stop17h 45m
Multiple Airlines
Sat 9/521:00
ORD
-
CWL
1 stop18h 20m
Multiple Airlines
Deal found 18/3£693
Mon 4/509:45
CWL
-
ORD
2 stops16h 55m
Delta
Mon 11/519:00
ORD
-
CWL
2 stops15h 45m
Delta
Deal found 20/3£695
Sat 18/407:30
CWL
-
ORD
1 stop12h 30m
Multiple Airlines
Sat 25/421:00
ORD
-
CWL
1 stop18h 20m
Multiple Airlines
Deal found 21/3£703
Mon 22/617:15
CWL
-
ORD
1 stop27h 00m
KLM
Mon 6/716:50
ORD
-
CWL
1 stop10h 25m
KLM
Deal found 17/3£724
Fri 1/509:45
CWL
-
ORD
2 stops16h 55m
Air France
Fri 8/517:19
ORD
-
CWL
2 stops17h 46m
Air France
Deal found 17/3£732
Sat 18/417:35
CWL
-
ORD
1 stop26h 40m
KLM
Sat 25/413:11
ORD
-
CWL
2 stops14h 04m
KLM
Deal found 21/3£736

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 22 March 2026.

Round-trip from

£651

One-way from

£373
KLM
  • KLM
  • 14/4-21/4
  • 2 total stops
  • 45h 40m total
  • Cardiff to Chicago
Search Deals
21/5
  • 21/5
  • 2 total stops
  • 23h 10m 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 22 March 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

Wed 6/5

09:45-14:30

1 stop10h 45m

Chicago O'Hare Intl

Wed 13/5

16:50-16:45

1 stop17h 55m

£672
Fastest return journey

CardiffChicago

CWL - ORD

CWLORD

Cardiff Wales

Mon 4/5

09:45-14:30

1 stop10h 45m

Chicago O'Hare Intl

Mon 11/5

10:30-09:15

2 stops16h 45m

£691

CardiffChicago

CWL - ORD

CWLORD

Cardiff Wales

Mon 4/5

17:15-14:15

1 stop27h 00m

Chicago O'Hare Intl

Mon 11/5

16:50-09:15

1 stop10h 25m

£691

CardiffChicago

CWL - ORD

CWLORD

Cardiff Wales

Mon 4/5

09:45-20:40

2 stops16h 55m

Chicago O'Hare Intl

Mon 11/5

19:00-16:45

2 stops15h 45m

£695

CardiffChicago

CWL - ORD

CWLORD

Cardiff Wales

Mon 22/6

17:15-14:15

1 stop27h 00m

Chicago O'Hare Intl

Tue 7/7

16:20-16:45

1 stop18h 25m

£724

CardiffChicago

CWL - ORD

CWLORD

Cardiff Wales

Mon 22/6

17:15-14:15

1 stop27h 00m

Chicago O'Hare Intl

Mon 6/7

16:50-09:15

1 stop10h 25m

£724

CardiffChicago

CWL - ORD

CWLORD

Cardiff Wales

Sat 18/4

17:35-14:15

1 stop26h 40m

Chicago O'Hare Intl

Sat 25/4

13:11-09:15

2 stops14h 04m

£736
Cheapest one-way
Fastest single journey

CardiffChicago

CWL - ORD

CWLORD

Cardiff Wales

Thu 21/5

22:50-16:00

2 stops23h 10m

£373

CardiffChicago

CWL - ORD

CWLORD

Cardiff Wales

Wed 1/7

23:30-09:40

3 stops40h 10m

£566

CardiffChicago

CWL - ORD

CWLORD

Cardiff Wales

Sat 12/9

11:35-16:40

2 stops35h 05m

£651

Flights are sorted by cheapest return flights first.

Deals found on 19/3

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 22 March 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
1,477 reviews
Check prices

Food

7.3

Overall

7.8

Crew

8.4

Boarding

7.8

Comfort

7.6

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
KLM
7.8
Good
1,477 reviews
KLM
7.8
Good
1,477 reviews
Check prices

Food

7.3

Overall

7.8

Crew

8.4

Boarding

7.8

Comfort

7.6

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas

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.

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

    KLM, Virgin Atlantic, and Delta can get you from Cardiff to Chicago O'Hare Intl Airport in just under 10h 45m. Your travel time can differ by up to 6h 10m. 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.

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
Bristol to Midway flights
Cardiff 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 22 March 2026.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest£551Average£705FlexibilityNo 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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