Find flights
When to book
Airlines
FAQs

Cheap flights from Cardiff to Illinois from £521

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/5. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — ORD
22 Apr — 29 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 17 April 2025.

Round-trip from

£521
KLM
  • KLM
  • 5/5-12/5
  • 4 total stops
  • 28h 37m 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 17 April 2025.

Mon 5/509:50CWL - MDW
2 stops14h 30mKLM
Mon 12/513:08MDW - CWL
2 stops14h 07mKLM
Deal found 16/4£521
Mon 5/509:50CWL - ORD
2 stops14h 24mDelta
Mon 12/517:40ORD - CWL
2 stops17h 05mDelta
Deal found 16/4£536
Mon 5/517:15CWL - ORD
1 stop26h 55mVirgin Atlantic
Mon 12/513:30ORD - CWL
2 stops37h 45mVirgin Atlantic
Deal found 16/4£543
Mon 5/517:15CWL - ORD
1 stop26h 55mKLM
Mon 12/516:20ORD - CWL
1 stop10h 55mKLM
Deal found 16/4£647
Mon 5/513:10CWL - ORD
2 stops35h 05mMultiple Airlines
Mon 12/505:51ORD - CWL
3 stops28h 04mMultiple Airlines
Deal found 16/4£754
Mon 6/1009:50CWL - MDW
2 stops14h 46mVirgin Atlantic
Mon 13/1013:00MDW - CWL
2 stops14h 15mVirgin Atlantic
Deal found 17/4£823
Mon 6/1009:50CWL - MDW
2 stops14h 46mDelta
Mon 13/1009:30MDW - CWL
2 stops17h 45mDelta
Deal found 16/4£908

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 17 April 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 - MDW

CWLMDW

Cardiff Wales

Mon 5/5

09:50-18:20

2 stops14h 30m

Chicago Midway

Mon 12/5

13:08-09:15

2 stops14h 07m

£521

CardiffChicago

CWL - ORD

CWLORD

Cardiff Wales

Mon 5/5

09:50-18:14

2 stops14h 24m

Chicago O'Hare Intl

Mon 12/5

17:40-16:45

2 stops17h 05m

£536

CardiffChicago

CWL - ORD

CWLORD

Cardiff Wales

Mon 5/5

17:15-14:10

1 stop26h 55m

Chicago O'Hare Intl

Mon 12/5

13:30-09:15

2 stops37h 45m

£543

CardiffChicago

CWL - ORD

CWLORD

Cardiff Wales

Mon 5/5

17:15-14:10

1 stop26h 55m

Chicago O'Hare Intl

Mon 12/5

16:20-09:15

1 stop10h 55m

£647

CardiffChicago

CWL - ORD

CWLORD

Cardiff Wales

Mon 5/5

13:10-18:15

2 stops35h 05m

Chicago O'Hare Intl

Mon 12/5

05:51-15:55

3 stops28h 04m

£754

CardiffChicago

CWL - MDW

CWLMDW

Cardiff Wales

Mon 6/10

09:50-18:36

2 stops14h 46m

Chicago Midway

Mon 13/10

13:00-09:15

2 stops14h 15m

£823

CardiffChicago

CWL - MDW

CWLMDW

Cardiff Wales

Mon 6/10

09:50-18:36

2 stops14h 46m

Chicago Midway

Mon 13/10

09:30-09:15

2 stops17h 45m

£908

Flights are sorted by cheapest return flights first.

Deals found on 16/4

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, 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.

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 17 April 2025.
Read through reviews of airlines operating flights from Cardiff to Illinois, such as Delta, KLM and Virgin Atlantic. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
7,916 reviews
Check prices

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

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
7,916 reviews
Delta
8.0
Very Good
7,916 reviews
Check prices

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

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
KLM
7.8
Good
1,329 reviews
Delta
8.0
Very Good
7,916 reviews
Check prices

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

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
642 reviews
Delta
8.0
Very Good
7,916 reviews
Check prices

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Cardiff to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
Manchester to John F Kennedy Intl flights
Manchester to Orlando flights
Manchester to Newark flights
Manchester to LaGuardia flights
Manchester to Hobby flights
Manchester to Las Vegas flights
Manchester to Stewart flights
Manchester to Boston flights
Manchester to George Bush Intcntl flights
Manchester to Los Angeles flights
Manchester to Seattle flights
Manchester to Dulles Intl flights
Manchester to Atlanta flights
Manchester to O'Hare Intl flights
Manchester to San Francisco flights
Manchester to Tampa flights
Manchester to Dallas/Fort Worth flights
Manchester to Baltimore flights
Manchester to Midway flights
Manchester to Denver flights
Manchester to Miami flights
Manchester to Norfolk flights
Manchester to Reagan-National flights
Manchester to Santa Ana flights
Manchester to Ontario flights
Manchester to Austin flights
Manchester to Philadelphia flights
Manchester to Detroit flights
Bristol to John F Kennedy Intl flights
Manchester to Love Field flights
Manchester to San Jose flights
Bristol to Seattle flights
Cardiff to John F Kennedy Intl flights
Manchester to Portland flights
Bristol to O'Hare Intl flights
Manchester to Pittsburgh flights
Manchester to Nashville flights
Manchester to Minneapolis flights
Manchester to Charlotte flights
Manchester to Daytona Beach flights
Manchester to Sky Harbor Intl flights
Manchester to Indianapolis flights
Bristol to Midway flights
Cardiff to Newark flights
Manchester to Cleveland flights
Manchester to Burbank flights
Cardiff to LaGuardia flights
Manchester to Raleigh flights
Manchester to Rochester flights

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 17 April 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest£555Average£880FlexibilityNo cancel feeOn-time75%
Search KLM flights

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!

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
©2025 Cheapflights