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Cheap flights from Illinois to Cardiff from £249

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 24/9. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — CWL
13 Sep — 20 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Illinois to Cardiff

Enter your travel dates to find the best prices.

Cheapest flights from Illinois to Cardiff
Explore the most affordable flight options available from Illinois to Cardiff. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 August 2026.

Thu 5/1120:10 -
1 stop29h 40m
Sat 14/1108:15 -
2 stops15h 05m
Deal found 13/8£623
Thu 10/916:05 -
2 stops24h 15m
Thu 17/922:50 -
2 stops22h 00m
Deal found 11/8£707
Tue 29/916:55 -
2 stops47h 30m
Fri 30/1023:10 -
1 stop20h 50m
Deal found 9/8£740
Sun 27/921:00 -
1 stop18h 45m
Sun 4/1014:45 -
2 stops34h 30m
Deal found 13/8£740
Wed 23/916:50 -
1 stop17h 55m
Wed 7/1009:45 -
1 stop10h 45m
Deal found 10/8£798
Fri 25/916:15 -
1 stop11h 00m
Fri 2/1009:45 -
2 stops18h 47m
Deal found 11/8£805
Wed 23/919:13 -
2 stops15h 32m
Wed 7/1009:45 -
2 stops18h 48m
Deal found 10/8£809
Thu 5/1113:27 -
2 stops14h 23m
Sat 14/1117:30 -
2 stops28h 44m
Deal found 13/8£884
Sun 27/919:01 -
2 stops15h 44m
Sun 4/1009:50 -
2 stops18h 54m
Deal found 13/8£978
Sat 15/819:25 -
2 stops15h 20m
Sun 23/809:50 -
2 stops18h 46m
Deal found 11/8£999
Sat 26/916:30 -
2 stops18h 15m
Tue 6/1009:45 -
2 stops18h 48m
Deal found 10/8£1,021
Sat 26/919:13 -
2 stops15h 32m
Sat 3/1009:45 -
2 stops18h 59m
Deal found 12/8£1,056

Find flight deals from Illinois to Cardiff

Keep the following information in mind while searching for Illinois to Cardiff flight deals. Data was last updated 14 August 2026.

Round-trip from

£623

One-way from

£249
5/11-14/11
  • 5/11-14/11
  • 3 total stops
  • 44h 45m total
  • Illinois to Cardiff
Search Deals
24/9
  • 24/9
  • 3 total stops
  • 29h 30m total
  • Illinois to Cardiff
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Illinois to Cardiff 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 14 August 2026.
Use the filters below to find and compare flights from Illinois to Cardiff that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

ChicagoCardiff

ORD Chicago O'Hare Intl - CWL Cardiff Wales

ORDCWL

Chicago O'Hare Intl

Sat 26/9

22:30-21:20

2 stops16h 50m

Cardiff Wales

Tue 6/10

23:15-14:55

2 stops21h 40m

£707

ChicagoCardiff

ORD Chicago O'Hare Intl - CWL Cardiff Wales

ORDCWL

Chicago O'Hare Intl

Tue 29/9

16:55-22:25

2 stops47h 30m

Cardiff Wales

Fri 30/10

23:10-15:00

1 stop20h 50m

£740

ChicagoCardiff

ORD Chicago O'Hare Intl - CWL Cardiff Wales

ORDCWL

Chicago O'Hare Intl

Wed 23/9

16:50-16:45

1 stop17h 55m

Cardiff Wales

Wed 7/10

09:45-14:30

1 stop10h 45m

£798

ChicagoCardiff

MDW Chicago Midway - CWL Cardiff Wales

MDWCWL

Chicago Midway

Wed 23/9

19:13-16:45

2 stops15h 32m

Cardiff Wales

Wed 7/10

09:45-22:33

2 stops18h 48m

£809

ChicagoCardiff

ORD Chicago O'Hare Intl - CWL Cardiff Wales

ORDCWL

Chicago O'Hare Intl

Tue 29/9

08:55-09:15

2 stops18h 20m

Cardiff Wales

Fri 30/10

10:20-09:25

2 stops28h 05m

£809

ChicagoCardiff

ORD Chicago O'Hare Intl - CWL Cardiff Wales

ORDCWL

Chicago O'Hare Intl

Thu 10/9

16:15-09:15

1 stop11h 00m

Cardiff Wales

Thu 17/9

17:15-14:15

1 stop27h 00m

£836

ChicagoCardiff

ORD Chicago O'Hare Intl - CWL Cardiff Wales

ORDCWL

Chicago O'Hare Intl

Sat 12/9

19:00-21:45

2 stops44h 45m

Cardiff Wales

Fri 18/9

22:45-14:00

1 stop21h 15m

£842
Fastest return journey

ChicagoCardiff

ORD Chicago O'Hare Intl - CWL Cardiff Wales

ORDCWL

Chicago O'Hare Intl

Thu 10/9

16:15-09:15

1 stop11h 00m

Cardiff Wales

Thu 17/9

09:45-20:30

2 stops16h 45m

£843

ChicagoCardiff

ORD Chicago O'Hare Intl - CWL Cardiff Wales

ORDCWL

Chicago O'Hare Intl

Sat 26/9

16:15-16:45

1 stop18h 30m

Cardiff Wales

Sat 3/10

17:35-14:15

1 stop26h 40m

£873

ChicagoCardiff

ORD Chicago O'Hare Intl - CWL Cardiff Wales

ORDCWL

Chicago O'Hare Intl

Sat 12/9

16:15-09:15

1 stop11h 00m

Cardiff Wales

Fri 18/9

17:15-14:15

1 stop27h 00m

£873

Flights are sorted by cheapest return flights first.

Deals found on 10/8

Showing 1-10 of 29 resultsSorted by cheapest first
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Best time to book a flight from Illinois to Cardiff

Have a flexible travel schedule? Discover the best time to fly to Cardiff from Illinois 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.

Cheapflights Insights

Everything you need to know about your flight from Illinois to Cardiff

No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Illinois to Cardiff. 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 into for flights to Cardiff from Illinois?

    Cardiff Wales (CWL), located 9.1 mi from the city center, is the airport you fly into when you book flights from Illinois to Cardiff.

  • How long is the flight from Illinois to Cardiff?

    Airlines like Delta and KLM fly from Illinois to Cardiff in about 15h 32m. The time it takes to get you to your destination can typically vary by up to 2h 23m. Airlines will cover a distance of 3833 mi. Both multi-stop and direct flights can be found to your destination and back.

  • Can I find deals for flights from Illinois to Cardiff that include hotel bookings?

    Yes. In addition to deals on Illinois to Cardiff flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Cardiff?

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

  • Can I find deals for business class flights from Illinois to Cardiff?

    Yes. Cheapflights offers flight deals from Illinois to Cardiff 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 Cardiff?

Book flights to Cardiff if you plan to visit one of these locations
Bridgend
Barry

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Fly with Cheapflights

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How does Cheapflights help users find flights from Illinois to Cardiff?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Illinois to Cardiff. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Illinois to Cardiff?

Cheapflights helps you find that perfect flight to Cardiff from Illinois by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Illinois to Cardiff with no change fees?

Need flexible booking options for your flight to Cardiff from Illinois? 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 Illinois to Cardiff become cheaper?

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

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