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Cheap flights from Cardiff to Illinois from £615

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 26/1. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — ORD
11 tammi — 18 tammi1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Cardiff to Illinois

Enter your travel dates to find the best prices.

Best flights from Cardiff to Illinois
Discover carefully curated flight deals from Cardiff to Illinois that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 12 joulukuu 2025.

ma 26/110:20CWL - ORD
2 stops16h 45mDelta
ma 2/210:29ORD - CWL
2 stops17h 21mDelta
Deal found 12/12£615
ma 26/110:20CWL - MDW
2 stops37h 09mVirgin Atlantic
ma 2/209:33MDW - CWL
2 stops18h 17mVirgin Atlantic
Deal found 12/12£621
la 24/110:20CWL - ORD
2 stops16h 45mKLM
la 31/116:25ORD - CWL
1 stop11h 20mKLM
Deal found 10/12£671
la 24/120:05CWL - ORD
2 stops24h 40mMultiple Airlines
la 31/105:15ORD - CWL
3 stops33h 40mMultiple Airlines
Deal found 10/12£688
la 24/110:20CWL - MDW
2 stops38h 16mVirgin Atlantic
la 31/109:33MDW - CWL
2 stops18h 12mVirgin Atlantic
Deal found 10/12£672
ma 26/110:20CWL - ORD
3 stops34h 50mMultiple Airlines
ma 2/217:20ORD - CWL
3 stops34h 30mMultiple Airlines
Deal found 12/12£852

Find flight deals from Cardiff to Illinois

Keep the following information in mind while searching for Cardiff to Illinois flight deals. Data was last updated 12 joulukuu 2025.

Round-trip from

£615
Delta
  • Delta
  • 26/1-2/2
  • 4 total stops
  • 34h 06m total
  • Cardiff to Illinois
Search Deals

Cheapflights Fare Finder

 
Customise 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 858,174 searches. Data last updated 12 joulukuu 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

ma 26/1

10:20-21:05

2 stops16h 45m

Chicago O'Hare Intl

ma 2/2

10:29-09:50

2 stops17h 21m

£615

CardiffChicago

CWL - MDW

CWLMDW

Cardiff Wales

ma 26/1

10:20-17:29

2 stops37h 09m

Chicago Midway

ma 2/2

09:33-09:50

2 stops18h 17m

£621

CardiffChicago

CWL - ORD

CWLORD

Cardiff Wales

la 24/1

10:20-21:05

2 stops16h 45m

Chicago O'Hare Intl

la 31/1

16:25-09:45

1 stop11h 20m

£671

CardiffChicago

CWL - MDW

CWLMDW

Cardiff Wales

la 24/1

10:20-18:36

2 stops38h 16m

Chicago Midway

la 31/1

09:33-09:45

2 stops18h 12m

£672

CardiffChicago

CWL - ORD

CWLORD

Cardiff Wales

la 24/1

20:05-14:45

2 stops24h 40m

Chicago O'Hare Intl

la 31/1

05:15-20:55

3 stops33h 40m

£688

CardiffChicago

CWL - ORD

CWLORD

Cardiff Wales

ma 26/1

10:20-15:10

3 stops34h 50m

Chicago O'Hare Intl

ma 2/2

17:20-09:50

3 stops34h 30m

£852

Flights are sorted by cheapest return flights first.

Deals found on 12/12

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 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 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 £152). Flying from Cardiff to Illinois in October is currently the most expensive (average of £934). 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?

    If you book a flight to Illinois from Cardiff, you will be flying from Cardiff Wales, which is the city’s only airport. Cardiff Wales (CWL) is located 9.1 mi from the center of Cardiff.

  • How long is the flight from Cardiff to Illinois?

    There are many flights that can get you from Cardiff to Illinois in 16h 45m. Fly via Delta, Virgin Atlantic, or KLM to get the fastest option. The distance between Cardiff and Illinois is about 3831 mi. When browsing for deals, the options you’ll see will be for both direct 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 holiday 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 £152). Flying from Cardiff to Illinois in October is currently the most expensive (average of £934). 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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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 Cardiff to Illinois?

Deals for Cardiff to Illinois flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Cardiff to Illinois?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Cardiff to Illinois.

Can Cheapflights find flights from Cardiff to Illinois with no change fees?

Certainly. Search results for flights to Illinois from Cardiff shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Cardiff to Illinois become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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