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Cheap flights from Illinois to Cardiff from £451

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 1/7. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — CWL
10 Jul — 17 Jul1
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 June 2026.

Fri 4/911:45
ORD
-
CWL
1 stop16h 30m
Multiple Airlines
Mon 7/911:35
CWL
-
ORD
1 stop33h 00m
Multiple Airlines
Deal found 7/6£502
Fri 3/710:25
MDW
-
CWL
1 stop17h 50m
Multiple Airlines
Mon 6/711:35
CWL
-
MDW
1 stop28h 05m
Multiple Airlines
Deal found 7/6£573
Thu 17/915:45
ORD
-
CWL
2 stops24h 35m
Multiple Airlines
Thu 24/922:50
CWL
-
ORD
2 stops24h 08m
Multiple Airlines
Deal found 7/6£606
Fri 3/714:15
ORD
-
CWL
1 stop14h 00m
Multiple Airlines
Mon 6/711:35
CWL
-
ORD
1 stop14h 41m
Multiple Airlines
Deal found 7/6£654
Sat 15/817:35
ORD
-
CWL
2 stops21h 45m
Multiple Airlines
Sun 23/821:45
CWL
-
ORD
3 stops28h 20m
Multiple Airlines
Deal found 7/6£655
Sun 5/714:15
ORD
-
CWL
1 stop14h 00m
Multiple Airlines
Sat 11/711:35
CWL
-
ORD
1 stop14h 05m
Multiple Airlines
Deal found 8/6£674
Sat 15/819:25
MDW
-
CWL
2 stops15h 20m
Multiple Airlines
Sun 23/809:50
CWL
-
MDW
2 stops18h 46m
Multiple Airlines
Deal found 7/6£890
Fri 4/919:25
MDW
-
CWL
2 stops15h 40m
KLM
Mon 7/909:45
CWL
-
MDW
2 stops18h 51m
KLM
Deal found 7/6£938
Mon 20/712:41
MDW
-
CWL
2 stops14h 34m
Multiple Airlines
Mon 27/709:45
CWL
-
MDW
2 stops18h 30m
Multiple Airlines
Deal found 6/6£940
Tue 22/1209:30
MDW
-
CWL
2 stops18h 20m
Delta
Tue 29/1210:20
CWL
-
MDW
2 stops36h 02m
Delta
Deal found 5/6£952
Thu 23/718:58
MDW
-
CWL
2 stops15h 47m
Multiple Airlines
Thu 30/709:45
CWL
-
MDW
2 stops18h 30m
Multiple Airlines
Deal found 8/6£1,004
Wed 1/709:17
MDW
-
CWL
2 stops18h 58m
WestJet
Thu 9/711:35
CWL
-
MDW
2 stops27h 38m
WestJet
Deal found 6/6£1,025

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 June 2026.

Round-trip from

£502

One-way from

£451
4/9-7/9
  • 4/9-7/9
  • 2 total stops
  • 49h 30m total
  • Illinois to Cardiff
Search Deals
WestJet
  • WestJet
  • 1/7
  • 2 total stops
  • 21h 14m 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 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

MDW - CWL

MDWCWL

Chicago Midway

Fri 3/7

10:25-10:15

1 stop17h 50m

Cardiff Wales

Mon 6/7

11:35-09:40

1 stop28h 05m

£573

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Thu 17/9

15:45-22:20

2 stops24h 35m

Cardiff Wales

Thu 24/9

22:50-16:58

2 stops24h 08m

£606

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Fri 4/9

15:20-10:15

1 stop12h 55m

Cardiff Wales

Mon 7/9

22:10-16:58

2 stops24h 48m

£620

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Tue 23/6

17:35-22:50

2 stops23h 15m

Cardiff Wales

Thu 25/6

22:50-16:57

2 stops24h 07m

£739

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Mon 12/10

12:15-09:15

2 stops15h 00m

Cardiff Wales

Mon 19/10

17:15-14:15

1 stop27h 00m

£769
Fastest return journey

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Wed 1/7

14:15-10:15

1 stop14h 00m

Cardiff Wales

Thu 9/7

11:35-22:05

1 stop16h 30m

£769

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Sat 15/8

17:35-21:20

2 stops21h 45m

Cardiff Wales

Mon 17/8

11:35-22:05

1 stop16h 30m

£826

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Mon 12/10

11:41-22:50

3 stops29h 09m

Cardiff Wales

Mon 19/10

22:10-16:00

3 stops47h 50m

£860

ChicagoCardiff

MDW - CWL

MDWCWL

Chicago Midway

Fri 4/9

19:25-17:05

2 stops15h 40m

Cardiff Wales

Mon 7/9

09:45-22:36

2 stops18h 51m

£938

ChicagoCardiff

MDW - CWL

MDWCWL

Chicago Midway

Mon 20/7

12:41-09:15

2 stops14h 34m

Cardiff Wales

Mon 27/7

09:45-22:15

2 stops18h 30m

£940

Flights are sorted by cheapest return flights first.

Deals found on 8/6

Showing 1-10 of 15 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 KLM and WestJet fly from Illinois to Cardiff in about 15h 40m. The time it takes to get you to your destination can typically vary by up to 3h 18m. 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?

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.

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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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