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Cheap flights from Illinois to Cardiff from £248

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 16/9. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — CWL
30 Jul — 6 Aug1
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 30 June 2026.

Tue 18/819:25
ORD
-
CWL
3 stops21h 25m
Multiple Airlines
Tue 25/823:15
CWL
-
ORD
3 stops26h 37m
Multiple Airlines
Deal found 26/6£541
Tue 28/721:00
ORD
-
CWL
1 stop19h 50m
Multiple Airlines
Tue 4/823:15
CWL
-
ORD
1 stop20h 45m
Multiple Airlines
Deal found 28/6£574
Wed 2/909:50
ORD
-
CWL
1 stop18h 25m
Multiple Airlines
Thu 17/922:50
CWL
-
ORD
3 stops41h 27m
Multiple Airlines
Deal found 26/6£640
Fri 14/815:40
ORD
-
CWL
3 stops35h 35m
Multiple Airlines
Fri 21/822:45
CWL
-
ORD
2 stops21h 59m
Multiple Airlines
Deal found 30/6£664
Thu 6/814:15
ORD
-
CWL
2 stops26h 05m
Multiple Airlines
Thu 20/811:35
CWL
-
ORD
1 stop14h 54m
Multiple Airlines
Deal found 26/6£670
Tue 18/818:42
MDW
-
CWL
2 stops16h 03m
Delta
Tue 25/809:45
CWL
-
MDW
2 stops18h 51m
Delta
Deal found 26/6£822
Fri 14/812:46
MDW
-
CWL
2 stops14h 29m
KLM
Fri 21/809:45
CWL
-
MDW
2 stops18h 51m
KLM
Deal found 30/6£853
Thu 6/818:42
MDW
-
CWL
2 stops33h 33m
WestJet
Thu 20/811:35
CWL
-
MDW
2 stops27h 42m
WestJet
Deal found 26/6£871
Fri 2/1019:13
MDW
-
CWL
2 stops15h 52m
KLM
Wed 7/1009:45
CWL
-
MDW
2 stops18h 40m
KLM
Deal found 28/6£892
Tue 28/719:06
MDW
-
CWL
2 stops15h 39m
Multiple Airlines
Tue 4/809:45
CWL
-
MDW
2 stops18h 51m
Multiple Airlines
Deal found 28/6£895
Fri 14/809:24
MDW
-
CWL
2 stops18h 51m
Multiple Airlines
Fri 21/822:45
CWL
-
MDW
3 stops40h 32m
Multiple Airlines
Deal found 30/6£900

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 30 June 2026.

Round-trip from

£541

One-way from

£248
18/8-25/8
  • 18/8-25/8
  • 6 total stops
  • 48h 02m total
  • Illinois to Cardiff
Search Deals
16/9
  • 16/9
  • 3 total stops
  • 41h 55m 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 30 June 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 - CWL

ORDCWL

Chicago O'Hare Intl

Tue 18/8

19:25-22:50

3 stops21h 25m

Cardiff Wales

Tue 25/8

23:15-19:52

3 stops26h 37m

£541

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Tue 28/7

21:00-22:50

1 stop19h 50m

Cardiff Wales

Tue 4/8

23:15-14:00

1 stop20h 45m

£574

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Thu 6/8

14:15-22:20

2 stops26h 05m

Cardiff Wales

Thu 20/8

11:35-20:29

1 stop14h 54m

£670

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Fri 14/8

21:00-09:15

2 stops30h 15m

Cardiff Wales

Fri 21/8

22:45-14:00

1 stop21h 15m

£809
Fastest return journey

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Fri 14/8

16:20-09:15

1 stop10h 55m

Cardiff Wales

Fri 21/8

09:45-23:57

2 stops20h 12m

£815

ChicagoCardiff

MDW - CWL

MDWCWL

Chicago Midway

Tue 18/8

18:42-16:45

2 stops16h 03m

Cardiff Wales

Tue 25/8

09:45-22:36

2 stops18h 51m

£822

ChicagoCardiff

MDW - CWL

MDWCWL

Chicago Midway

Fri 14/8

12:46-09:15

2 stops14h 29m

Cardiff Wales

Fri 21/8

09:45-22:36

2 stops18h 51m

£853

ChicagoCardiff

MDW - CWL

MDWCWL

Chicago Midway

Thu 6/8

18:42-10:15

2 stops33h 33m

Cardiff Wales

Thu 20/8

11:35-09:17

2 stops27h 42m

£871

ChicagoCardiff

MDW - CWL

MDWCWL

Chicago Midway

Fri 2/10

19:13-17:05

2 stops15h 52m

Cardiff Wales

Wed 7/10

09:45-22:25

2 stops18h 40m

£892

ChicagoCardiff

MDW - CWL

MDWCWL

Chicago Midway

Tue 28/7

19:06-16:45

2 stops15h 39m

Cardiff Wales

Tue 4/8

09:45-22:36

2 stops18h 51m

£895

Flights are sorted by cheapest return flights first.

Deals found on 26/6

Showing 1-10 of 19 resultsSorted by cheapest first
1
2

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, KLM, and WestJet fly from Illinois to Cardiff in about 14h 29m. The time it takes to get you to your destination can typically vary by up to 19h 04m. 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
Barry
Bridgend

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Fly with Cheapflights

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

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

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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.

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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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