Find flights
When to book
FAQs

Cheap flights from Illinois to Cardiff from £239

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 25/5. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — CWL
18 Mar — 25 Mar1
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 16 February 2026.

Sun 1/319:20
ORD
-
CWL
2 stops21h 45m
Multiple Airlines
Fri 6/322:25
CWL
-
ORD
2 stops24h 20m
Multiple Airlines
Deal found 12/2£423
Tue 17/313:57
ORD
-
CWL
2 stops14h 53m
Multiple Airlines
Tue 24/310:20
CWL
-
ORD
1 stop34h 00m
Multiple Airlines
Deal found 15/2£581
Sun 27/916:20
ORD
-
CWL
1 stop18h 25m
Scandinavian Airlines
Mon 12/1017:15
CWL
-
ORD
1 stop27h 00m
Scandinavian Airlines
Deal found 11/2£587
Tue 1/916:20
ORD
-
CWL
1 stop10h 55m
KLM
Wed 16/917:15
CWL
-
ORD
1 stop27h 00m
KLM
Deal found 11/2£588
Wed 2/907:00
ORD
-
CWL
2 stops20h 15m
Delta
Wed 16/909:45
CWL
-
ORD
1 stop10h 45m
Delta
Deal found 11/2£592
Tue 17/318:34
MDW
-
CWL
2 stops17h 21m
Multiple Airlines
Tue 24/310:20
CWL
-
MDW
2 stops36h 34m
Multiple Airlines
Deal found 15/2£592
Tue 1/916:20
ORD
-
CWL
1 stop10h 55m
Delta
Mon 14/909:45
CWL
-
ORD
2 stops38h 56m
Delta
Deal found 11/2£595
Wed 2/907:00
ORD
-
CWL
2 stops20h 15m
Delta
Fri 18/909:45
CWL
-
ORD
2 stops17h 51m
Delta
Deal found 11/2£599
Sat 5/918:10
ORD
-
CWL
2 stops33h 05m
Delta
Wed 16/909:45
CWL
-
ORD
1 stop10h 45m
Delta
Deal found 11/2£600
Thu 26/209:34
MDW
-
CWL
2 stops18h 16m
KLM
Sun 1/317:30
CWL
-
MDW
2 stops30h 07m
KLM
Deal found 13/2£668
Sun 21/609:20
MDW
-
CWL
2 stops18h 55m
Multiple Airlines
Thu 25/611:35
CWL
-
MDW
1 stop28h 05m
Multiple Airlines
Deal found 12/2£819
Wed 1/709:30
MDW
-
CWL
2 stops18h 45m
Multiple Airlines
Wed 8/723:50
CWL
-
MDW
3 stops23h 00m
Multiple Airlines
Deal found 14/2£1,097

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 16 February 2026.

Round-trip from

£423

One-way from

£239
1/3-6/3
  • 1/3-6/3
  • 4 total stops
  • 46h 05m total
  • Illinois to Cardiff
Search Deals
WestJet
  • WestJet
  • 25/5
  • 2 total stops
  • 58h 45m 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 16 February 2026.
Use the filters below to find and compare flights from Illinois to Cardiff that are best for you.

Fly from

Illinois

Fly to

Cardiff

Route

Depart

Return

Price

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Sun 1/3

19:20-23:05

2 stops21h 45m

Cardiff Wales

Fri 6/3

22:25-16:45

2 stops24h 20m

£423

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Tue 17/3

13:57-09:50

2 stops14h 53m

Cardiff Wales

Tue 24/3

10:20-15:20

1 stop34h 00m

£581

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Tue 17/3

13:57-09:50

2 stops14h 53m

Cardiff Wales

Tue 24/3

10:20-10:00

2 stops28h 40m

£588

ChicagoCardiff

MDW - CWL

MDWCWL

Chicago Midway

Tue 17/3

18:34-16:55

2 stops17h 21m

Cardiff Wales

Tue 24/3

10:20-17:54

2 stops36h 34m

£592

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Sat 18/4

16:20-16:45

1 stop18h 25m

Cardiff Wales

Mon 27/4

17:15-14:15

1 stop27h 00m

£625

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Sun 15/3

23:35-23:05

2 stops18h 30m

Cardiff Wales

Sun 22/3

21:20-21:05

2 stops28h 45m

£635

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Sat 18/4

17:09-22:00

2 stops46h 51m

Cardiff Wales

Mon 27/4

22:25-14:00

1 stop21h 35m

£657

ChicagoCardiff

MDW - CWL

MDWCWL

Chicago Midway

Thu 26/2

09:34-09:50

2 stops18h 16m

Cardiff Wales

Sun 1/3

17:30-17:37

2 stops30h 07m

£668

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Sat 18/4

13:29-16:45

2 stops21h 16m

Cardiff Wales

Mon 27/4

09:45-19:48

2 stops16h 03m

£713

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Mon 1/6

17:30-10:15

2 stops58h 45m

Cardiff Wales

Mon 8/6

11:35-16:40

2 stops59h 05m

£769

Flights are sorted by cheapest return flights first.

Deals found on 11/2

Showing 1-10 of 19 results
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 KLM fly from Illinois to Cardiff in about 14h 53m. The time it takes to get you to your destination can typically vary by up to . Airlines will cover a distance of 3831 mi.

  • 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Illinois to Cardiff

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Manchester flights
Newark to Manchester flights
LaGuardia to Manchester flights
Orlando to Manchester flights
O'Hare Intl to Manchester flights
Los Angeles to Manchester flights
Dallas/Fort Worth to Manchester flights
Boston to Manchester flights
Dulles Intl to Manchester flights
Atlanta to Manchester flights
Baltimore to Manchester flights
Reagan-National to Manchester flights
Midway to Manchester flights
Seattle to Manchester flights
San Francisco to Manchester flights
Hobby to Manchester flights
Santa Ana to Manchester flights
Charlotte to Manchester flights
Tampa to Manchester flights
Detroit to Manchester flights
Ontario to Manchester flights
Sky Harbor Intl to Manchester flights
Philadelphia to Manchester flights
George Bush Intcntl to Manchester flights
Portland to Manchester flights
Minneapolis to Manchester flights
Nashville to Manchester flights
Raleigh to Manchester flights
Miami to Manchester flights
Cincinnati to Manchester flights
Denver to Manchester flights
Des Moines to Manchester flights
San Jose to Manchester flights
Knoxville to Manchester flights
Kansas City to Manchester flights
Columbus to Manchester flights
Memphis to Manchester flights
Fort Lauderdale to Manchester flights
St. Louis to Manchester flights
Las Vegas to Manchester flights
Austin to Manchester flights
Cleveland to Manchester flights
Indianapolis to Manchester flights
Hartford to Manchester flights
Harrisburg to Manchester flights
O'Hare Intl to Cardiff flights
Pittsburgh to Manchester flights
Louisville to Manchester flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.