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$883+ Cheap flights from Cardiff (CWL) to Illinois

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/5. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — ORD
Dec 3 — Dec 101
Wed 12/3
Wed 12/10
1 adult, Economy
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Find flight deals from Cardiff to Illinois

Cheapest flights from Cardiff to Illinois
Explore the most affordable flight options available from Cardiff to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 3, 2025.

This TravelUp deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1710:20 amCWL - ORD
2 stops36h 34mVirgin Atlantic
Wed 12/244:25 pmORD - CWL
1 stop11h 25mVirgin Atlantic
Deal found 11/2$910
This Kiwi.com deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1810:30 amCWL - ORD
1 stop13h 25mMultiple Airlines
Thu 12/257:20 pmORD - CWL
2 stops20h 40mMultiple Airlines
Deal found 11/2$1,045
This Delta deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1810:20 amCWL - MDW
2 stops19h 27mDelta
Thu 12/256:00 amMDW - CWL
2 stops21h 50mDelta
Deal found 11/2$1,218
This Mytrip deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/175:25 pmCWL - ORD
3 stops29h 55mMultiple Airlines
Wed 12/2410:00 amORD - CWL
2 stops24h 55mMultiple Airlines
Deal found 11/2$1,303

Cheap flight deals from Cardiff to Illinois

Keep the following information in mind while searching for Cardiff to Illinois flight deals. Data was last updated November 3, 2025.

Round-trip from

$883
(Delta)
From Cardiff Wales to Illinois
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Cardiff to Illinois 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 2,558,603 searches. Data last updated November 3, 2025.
Use the filters below to find and compare flights from Cardiff to Illinois that are best for you.

Fly from

Cardiff

Fly to

Illinois

Route

Depart

Return

Price

CardiffChicago

CWL - ORD

CWLORD

Cardiff Wales

Thu 3/5

10:20 am-2:20 pm

1 stop34h 00m

Chicago O'Hare Intl

Mon 3/9

7:30 am-9:50 am

2 stops21h 20m

$883

CardiffChicago

CWL - ORD

CWLORD

Cardiff Wales

Wed 12/17

10:20 am-4:54 pm

2 stops36h 34m

Chicago O'Hare Intl

Wed 12/24

4:25 pm-9:50 am

1 stop11h 25m

$910

CardiffChicago

CWL - ORD

CWLORD

Cardiff Wales

Thu 12/18

10:30 am-5:55 pm

1 stop13h 25m

Chicago O'Hare Intl

Thu 12/25

7:20 pm-10:00 pm

2 stops20h 40m

$1,045

CardiffChicago

CWL - MDW

CWLMDW

Cardiff Wales

Thu 3/26

10:20 am-6:34 pm

2 stops37h 14m

Chicago Midway

Mon 3/30

6:45 pm-4:45 pm

2 stops16h 00m

$1,135

CardiffChicago

CWL - MDW

CWLMDW

Cardiff Wales

Thu 3/26

10:20 am-6:34 pm

2 stops37h 14m

Chicago Midway

Mon 3/30

9:20 am-4:45 pm

2 stops25h 25m

$1,188

CardiffChicago

CWL - MDW

CWLMDW

Cardiff Wales

Thu 12/18

10:20 am-11:47 pm

2 stops19h 27m

Chicago Midway

Thu 12/25

6:00 am-9:50 am

2 stops21h 50m

$1,218

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/2

Best time to book a flight from Cardiff to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Cardiff with our price prediction graph.
Estimated round-trip 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 Cardiff to Illinois

What is the cheapest month to book a flight from Cardiff to Illinois?

Currently, September is the cheapest month in which you can book a flight from Cardiff to Illinois (average of $204). Flying from Cardiff to Illinois in August is currently the most expensive (average of $1,009). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Cardiff to Illinois. 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 from for flights from Cardiff to Illinois?

    Cardiff Wales (CWL) is the airport you will fly out of if you book a flight from Cardiff to Illinois. It is only a 9.1 mi journey to Cardiff Wales (CWL) from Cardiff’s city center.

  • How long is the flight from Cardiff to Illinois?

    For as low as $883, Delta can have you in Illinois from Cardiff in 34h. Cardiff and Illinois are separated by a distance of 3831 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • Can I find deals for flights from Cardiff to Illinois that include hotel bookings?

    Yes. In addition to deals on Cardiff to Illinois flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Cardiff to Illinois?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Cardiff to Illinois.

  • Can I find deals for business class flights from Cardiff to Illinois?

    Yes. Cheapflights offers flight deals from Cardiff to Illinois by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Cardiff to Illinois?

    Currently, September is the cheapest month in which you can book a flight from Cardiff to Illinois (average of $204). Flying from Cardiff to Illinois in August is currently the most expensive (average of $1,009). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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