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Cheap flights from Illinois to Cardiff from £252

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 22/8. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — CWL
9 Aug — 16 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 10 July 2026.

Tue 18/821:00
ORD
-
CWL
1 stop19h 50m
Multiple Airlines
Tue 25/823:15
CWL
-
ORD
1 stop20h 45m
Multiple Airlines
Deal found 5/7£543
Wed 19/821:00
ORD
-
CWL
1 stop19h 25m
Multiple Airlines
Wed 26/823:15
CWL
-
ORD
1 stop20h 45m
Multiple Airlines
Deal found 5/7£545
Sun 2/821:00
ORD
-
CWL
1 stop18h 45m
Multiple Airlines
Tue 18/823:15
CWL
-
ORD
1 stop20h 45m
Multiple Airlines
Deal found 5/7£553
Sat 22/821:00
ORD
-
CWL
1 stop18h 20m
Multiple Airlines
Sat 29/807:30
CWL
-
ORD
1 stop12h 30m
Multiple Airlines
Deal found 8/7£575
Sun 23/815:40
ORD
-
CWL
3 stops35h 35m
Multiple Airlines
Sun 30/821:45
CWL
-
ORD
2 stops23h 10m
Multiple Airlines
Deal found 9/7£665
Thu 29/1016:55
ORD
-
CWL
1 stop17h 45m
Multiple Airlines
Mon 2/1108:25
CWL
-
ORD
2 stops14h 55m
Multiple Airlines
Deal found 6/7£680
Wed 19/819:25
MDW
-
CWL
2 stops15h 20m
Virgin Atlantic
Wed 26/809:45
CWL
-
MDW
2 stops18h 51m
Virgin Atlantic
Deal found 5/7£810
Tue 18/819:25
MDW
-
CWL
2 stops15h 20m
Multiple Airlines
Tue 25/809:45
CWL
-
MDW
2 stops18h 51m
Multiple Airlines
Deal found 5/7£812
Mon 17/810:54
MDW
-
CWL
2 stops16h 21m
Delta
Mon 24/809:45
CWL
-
MDW
2 stops18h 51m
Delta
Deal found 8/7£844
Sun 2/819:06
MDW
-
CWL
2 stops15h 39m
Multiple Airlines
Tue 18/809:45
CWL
-
MDW
2 stops18h 51m
Multiple Airlines
Deal found 5/7£850
Sun 23/818:42
MDW
-
CWL
2 stops16h 03m
Delta
Sun 30/809:50
CWL
-
MDW
2 stops18h 46m
Delta
Deal found 9/7£850
Sat 22/819:25
MDW
-
CWL
2 stops15h 20m
Multiple Airlines
Sat 29/809:50
CWL
-
MDW
2 stops18h 46m
Multiple Airlines
Deal found 8/7£880

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 10 July 2026.

Round-trip from

£545

One-way from

£252
19/8-26/8
  • 19/8-26/8
  • 2 total stops
  • 40h 10m total
  • Illinois to Cardiff
Search Deals
22/8
  • 22/8
  • 3 total stops
  • 41h 20m 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 10 July 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

Sun 2/8

21:00-21:45

1 stop18h 45m

Cardiff Wales

Tue 18/8

23:15-14:00

1 stop20h 45m

£553

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Wed 19/8

19:25-22:25

2 stops21h 00m

Cardiff Wales

Wed 26/8

17:15-18:15

3 stops31h 00m

£656

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Sat 22/8

15:45-21:20

2 stops23h 35m

Cardiff Wales

Sat 29/8

11:35-19:53

1 stop14h 18m

£665

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Wed 23/9

11:45-22:25

2 stops28h 40m

Cardiff Wales

Mon 28/9

22:10-14:00

1 stop21h 50m

£684

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Sun 23/8

21:00-21:45

1 stop18h 45m

Cardiff Wales

Sun 30/8

14:45-19:15

2 stops34h 30m

£703

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Tue 18/8

11:05-22:50

3 stops29h 45m

Cardiff Wales

Tue 25/8

10:00-14:00

2 stops34h 00m

£726

ChicagoCardiff

MDW - CWL

MDWCWL

Chicago Midway

Wed 19/8

19:25-16:45

2 stops15h 20m

Cardiff Wales

Wed 26/8

09:45-22:36

2 stops18h 51m

£810

ChicagoCardiff

MDW - CWL

MDWCWL

Chicago Midway

Tue 18/8

19:25-16:45

2 stops15h 20m

Cardiff Wales

Tue 25/8

09:45-22:36

2 stops18h 51m

£812

ChicagoCardiff

MDW - CWL

MDWCWL

Chicago Midway

Mon 17/8

10:54-09:15

2 stops16h 21m

Cardiff Wales

Mon 24/8

09:45-22:36

2 stops18h 51m

£844

ChicagoCardiff

MDW - CWL

MDWCWL

Chicago Midway

Sun 23/8

18:42-16:45

2 stops16h 03m

Cardiff Wales

Sun 30/8

09:50-22:36

2 stops18h 46m

£850

Flights are sorted by cheapest return flights first.

Deals found on 8/7

Showing 1-10 of 26 resultsSorted by cheapest first
1
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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 Virgin Atlantic and Delta fly from Illinois to Cardiff in about 15h 20m. The time it takes to get you to your destination can typically vary by up to 1h 01m. 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?

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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