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Cheap flights from Cardiff to Illinois from £489

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/5. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — ORD
1 Apr — 8 Apr1
1 adult

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 27 March 2025.

Round-trip from

£489
8/5-15/5
  • 8/5-15/5
  • 2 total stops
  • 26h 20m total
  • Cardiff to Illinois
Search Deals

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 27 March 2025.

Thu 8/507:55CWL - ORD
1 stop12h 05mMultiple Airlines
Thu 15/515:45ORD - CWL
1 stop14h 15mMultiple Airlines
Deal found 26/3£489
Thu 8/517:15CWL - ORD
1 stop26h 55mVirgin Atlantic
Thu 15/510:31ORD - CWL
2 stops16h 44mVirgin Atlantic
Deal found 26/3£538
Thu 8/509:50CWL - MDW
2 stops14h 55mDelta
Thu 15/509:20MDW - CWL
2 stops17h 55mDelta
Deal found 26/3£573
Wed 28/509:50CWL - ORD
2 stops14h 47mDelta
Thu 5/610:31ORD - CWL
2 stops16h 44mDelta
Deal found 25/3£655
Mon 6/1009:50CWL - MDW
2 stops14h 38mMultiple Airlines
Mon 13/1017:59MDW - CWL
2 stops16h 46mMultiple Airlines
Deal found 25/3£788
Mon 6/1009:50CWL - MDW
2 stops17h 57mVirgin Atlantic
Mon 13/1018:45MDW - CWL
2 stops16h 00mVirgin Atlantic
Deal found 25/3£986
Mon 6/1009:50CWL - ORD
1 stop10h 50mKLM
Mon 13/1016:50ORD - CWL
1 stop10h 25mKLM
Deal found 25/3£1,025

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 27 March 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 8/5

07:55-14:00

1 stop12h 05m

Chicago O'Hare Intl

Thu 15/5

15:45-12:00

1 stop14h 15m

£489

CardiffChicago

CWL - ORD

CWLORD

Cardiff Wales

Thu 8/5

17:15-14:10

1 stop26h 55m

Chicago O'Hare Intl

Thu 15/5

10:31-09:15

2 stops16h 44m

£538

CardiffChicago

CWL - MDW

CWLMDW

Cardiff Wales

Thu 8/5

09:50-18:45

2 stops14h 55m

Chicago Midway

Thu 15/5

09:20-09:15

2 stops17h 55m

£573

CardiffChicago

CWL - ORD

CWLORD

Cardiff Wales

Wed 28/5

09:50-18:37

2 stops14h 47m

Chicago O'Hare Intl

Thu 5/6

10:31-09:15

2 stops16h 44m

£655

Flights are sorted by cheapest return flights first.

Deals found on 26/3

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

Rainfall in Illinois by month

Plan your trip to Illinois by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Illinois ranges from 43.0 - 125.0 inches per month. August is typically the wettest month, when rainfall can reach 125.0 mm. January is typically the driest time to visit Illinois when rainfall is around 43.0 mm.

Temperature in Illinois by month

Plan your trip to Illinois by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -5.0 C).

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Illinois. Reviews last updated 27 March 2025.
Delta
8.0
Very Good
7,895 reviews
Check prices

Food

7.3

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very Good
7,895 reviews
Delta
8.0
Very Good
7,895 reviews
Check prices

Food

7.3

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Virgin Atlantic
7.4
Good
634 reviews
Delta
8.0
Very Good
7,895 reviews
Check prices

Food

7.3

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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.

  • 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, January is the cheapest month in which you can book a flight from Cardiff to Illinois (average of £595). Flying from Cardiff to Illinois in July is currently the most expensive (average of £843). 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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Alternative routes for Cardiff to Illinois

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Top airline flying from Cardiff to Illinois

Discover the top airline that operate flights from Cardiff to Illinois. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 27 March 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest£640Average£904FlexibilityNo cancel feeOn-time75%
Search KLM flights

Fly with Cheapflights

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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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