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Cheap flights from Illinois to Cardiff from £493

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
21 May — 28 May1
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 21 April 2026.

Mon 1/610:00
ORD
-
CWL
1 stop18h 15m
Multiple Airlines
Mon 8/622:10
CWL
-
ORD
2 stops24h 49m
Multiple Airlines
Deal found 17/4£575
Sun 14/609:55
ORD
-
CWL
1 stop18h 20m
Multiple Airlines
Wed 17/623:30
CWL
-
ORD
2 stops28h 35m
Multiple Airlines
Deal found 20/4£718
Thu 18/614:15
ORD
-
CWL
2 stops26h 05m
Multiple Airlines
Mon 22/622:10
CWL
-
ORD
2 stops24h 47m
Multiple Airlines
Deal found 19/4£729
Tue 5/521:40
ORD
-
CWL
2 stops19h 25m
Multiple Airlines
Fri 15/522:45
CWL
-
ORD
2 stops22h 08m
Multiple Airlines
Deal found 21/4£763
Sat 6/613:18
ORD
-
CWL
3 stops38h 57m
Multiple Airlines
Sat 13/607:30
CWL
-
ORD
3 stops45h 45m
Multiple Airlines
Deal found 21/4£793
Fri 1/509:29
MDW
-
CWL
2 stops17h 46m
KLM
Mon 4/517:15
CWL
-
MDW
2 stops35h 13m
KLM
Deal found 18/4£961
Mon 1/610:59
MDW
-
CWL
2 stops16h 16m
Delta
Mon 8/609:45
CWL
-
MDW
2 stops18h 32m
Delta
Deal found 17/4£1,028
Sat 6/619:13
MDW
-
CWL
2 stops56h 02m
Multiple Airlines
Sat 13/617:35
CWL
-
MDW
2 stops30h 43m
Multiple Airlines
Deal found 21/4£1,041
Tue 19/518:36
MDW
-
CWL
2 stops16h 09m
Delta
Wed 27/509:45
CWL
-
MDW
2 stops17h 24m
Delta
Deal found 18/4£1,174
Sat 6/618:36
MDW
-
CWL
2 stops16h 09m
Delta
Sat 13/609:45
CWL
-
MDW
2 stops18h 32m
Delta
Deal found 20/4£1,216

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 21 April 2026.

Round-trip from

£575

One-way from

£493
1/6-8/6
  • 1/6-8/6
  • 3 total stops
  • 43h 04m total
  • Illinois to Cardiff
Search Deals
WestJet
  • WestJet
  • 1/7
  • 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 21 April 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

Mon 1/6

10:00-10:15

1 stop18h 15m

Cardiff Wales

Mon 8/6

22:10-16:59

2 stops24h 49m

£575

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Sun 14/6

09:55-10:15

1 stop18h 20m

Cardiff Wales

Wed 17/6

23:30-22:05

2 stops28h 35m

£718

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Sat 6/6

13:18-10:15

3 stops38h 57m

Cardiff Wales

Sat 13/6

07:30-16:59

2 stops15h 29m

£762

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Tue 5/5

21:00-23:05

1 stop20h 05m

Cardiff Wales

Fri 15/5

22:45-19:40

2 stops26h 55m

£817

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Tue 19/5

08:45-23:05

3 stops32h 20m

Cardiff Wales

Wed 27/5

23:30-16:59

2 stops23h 29m

£894

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Thu 18/6

08:45-22:20

3 stops31h 35m

Cardiff Wales

Mon 22/6

22:10-22:05

3 stops29h 55m

£948

ChicagoCardiff

MDW - CWL

MDWCWL

Chicago Midway

Fri 1/5

09:29-09:15

2 stops17h 46m

Cardiff Wales

Mon 4/5

17:15-22:28

2 stops35h 13m

£961

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Tue 19/5

19:00-16:45

2 stops15h 45m

Cardiff Wales

Wed 27/5

09:45-22:35

2 stops18h 50m

£1,027

ChicagoCardiff

MDW - CWL

MDWCWL

Chicago Midway

Mon 1/6

10:59-09:15

2 stops16h 16m

Cardiff Wales

Mon 8/6

09:45-22:17

2 stops18h 32m

£1,028

ChicagoCardiff

MDW - CWL

MDWCWL

Chicago Midway

Sat 6/6

19:13-09:15

2 stops56h 02m

Cardiff Wales

Sat 13/6

17:35-18:18

2 stops30h 43m

£1,041

Flights are sorted by cheapest return flights first.

Deals found on 21/4

Showing 1-10 of 16 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 Delta fly from Illinois to Cardiff in about 16h 16m. The time it takes to get you to your destination can typically vary by up to 1h 30m. 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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Alternative routes for Illinois to Cardiff

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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.

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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