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Cheap flights from Cardiff to Chicago O'Hare Intl Airport from £615

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 25/8. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — ORD
9 Jul — 16 Jul1
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 9 June 2026.

Tue 25/823:15
CWL
-
ORD
2 stops26h 37m
Multiple Airlines
Mon 31/819:25
ORD
-
CWL
2 stops21h 25m
Multiple Airlines
Deal found 8/6£615
Tue 11/823:15
CWL
-
ORD
2 stops26h 37m
Multiple Airlines
Tue 18/815:45
ORD
-
CWL
2 stops25h 05m
Multiple Airlines
Deal found 9/6£667
Wed 8/723:15
CWL
-
ORD
3 stops28h 50m
Multiple Airlines
Tue 14/719:25
ORD
-
CWL
2 stops21h 25m
Multiple Airlines
Deal found 9/6£688
Sat 15/807:30
CWL
-
ORD
3 stops18h 35m
Multiple Airlines
Sun 23/809:50
ORD
-
CWL
2 stops29h 55m
Multiple Airlines
Deal found 9/6£699
Mon 22/609:45
CWL
-
ORD
1 stop10h 45m
Delta
Mon 6/716:50
ORD
-
CWL
1 stop10h 25m
Delta
Deal found 8/6£741

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 9 June 2026.

Round-trip from

£615
25/8-31/8
  • 25/8-31/8
  • 4 total stops
  • 48h 02m 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 9 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

Tue 25/8

23:15-19:52

2 stops26h 37m

Chicago O'Hare Intl

Mon 31/8

19:25-22:50

2 stops21h 25m

£615

CardiffChicago

CWL - ORD

CWLORD

Cardiff Wales

Tue 11/8

23:15-16:57

2 stops23h 42m

Chicago O'Hare Intl

Tue 18/8

19:25-09:15

3 stops31h 50m

£699
Fastest return journey

CardiffChicago

CWL - ORD

CWLORD

Cardiff Wales

Mon 22/6

09:45-14:30

1 stop10h 45m

Chicago O'Hare Intl

Tue 7/7

16:20-09:15

1 stop10h 55m

£741

CardiffChicago

CWL - ORD

CWLORD

Cardiff Wales

Mon 22/6

09:45-14:30

1 stop10h 45m

Chicago O'Hare Intl

Mon 6/7

19:17-16:45

2 stops15h 28m

£750

CardiffChicago

CWL - ORD

CWLORD

Cardiff Wales

Mon 22/6

09:45-22:42

2 stops18h 57m

Chicago O'Hare Intl

Tue 7/7

16:20-09:15

1 stop10h 55m

£754
Cheapest one-way
Fastest single journey

CardiffChicago

CWL - ORD

CWLORD

Cardiff Wales

Sat 11/7

11:35-16:40

2 stops59h 05m

£971

Flights are sorted by cheapest return flights first.

Deals found on 7/6

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 9 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
1,527 reviews
Check prices

Overall

7.8

Boarding

7.8

Food

7.3

Entertainment

7.2

Crew

8.4

Comfort

7.7

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
1,527 reviews
KLM
7.8
Good
1,527 reviews
Check prices

Overall

7.8

Boarding

7.8

Food

7.3

Entertainment

7.2

Crew

8.4

Comfort

7.7

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.

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

    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 . 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.

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 9 June 2026.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest£702Average£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?

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?

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?

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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