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$476+ Cheap flights from Cardiff (CWL) to Illinois

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 10/30. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — ORD
juin 17 — juin 241
mar. 6/17
mar. 6/24
1 adult, Economy
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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 juin 12, 2025.

Round-trip from

$1,011
(KLM)

One-way from

$476
(Kiwi.com)
From Cardiff Wales to Illinois
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One-way flight from Cardiff Wales to Illinois
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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 juin 12, 2025.

This KLM deal was found by Cheapflights users on 6/12. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 6/195:15 pmCWL - ORD
1 stop26h 55mKLM
jeu. 6/264:20 pmORD - CWL
1 stop18h 25mKLM
Deal found 6/12$833
This Delta deal was found by Cheapflights users on 6/12. 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.
jeu. 6/199:50 amCWL - MDW
2 stops14h 51mDelta
jeu. 6/2612:44 pmMDW - CWL
2 stops14h 31mDelta
Deal found 6/12$834
This Delta deal was found by Cheapflights users on 6/12. 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.
jeu. 6/199:50 amCWL - ORD
2 stops14h 13mDelta
jeu. 6/2610:35 amORD - CWL
2 stops16h 40mDelta
Deal found 6/12$884
This TravelUp deal was found by Cheapflights users on 6/10. 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.
ven. 7/255:15 pmCWL - ORD
1 stop26h 55mAir France
ven. 8/14:20 pmORD - CWL
1 stop18h 45mAir France
Deal found 6/10$1,107
This Mytrip deal was found by Cheapflights users on 6/10. 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.
ven. 7/2512:25 pmCWL - ORD
3 stops29h 45mMultiple Airlines
ven. 8/13:35 pmORD - CWL
3 stops35h 40mMultiple Airlines
Deal found 6/10$1,242
This KLM deal was found by Cheapflights users on 6/11. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/69:50 amCWL - MDW
2 stops14h 46mKLM
lun. 10/131:00 pmMDW - CWL
2 stops14h 15mKLM
Deal found 6/11$1,342
This Air France deal was found by Cheapflights users on 6/12. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/69:50 amCWL - MDW
2 stops14h 46mMultiple Airlines
lun. 10/131:00 pmMDW - CWL
2 stops14h 15mMultiple Airlines
Deal found 6/12$1,483

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 juin 12, 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

lun. 10/6

9:50 am-2:40 pm

1 stop10h 50m

Chicago O'Hare Intl

lun. 10/13

12:17 pm-9:15 am

2 stops14h 58m

$1,011

CardiffChicago

CWL - ORD

CWLORD

Cardiff Wales

lun. 10/6

9:50 am-2:40 pm

1 stop10h 50m

Chicago O'Hare Intl

lun. 10/13

9:30 am-9:15 am

2 stops17h 45m

$1,022

CardiffChicago

CWL - ORD

CWLORD

Cardiff Wales

ven. 7/25

5:15 pm-2:10 pm

1 stop26h 55m

Chicago O'Hare Intl

ven. 8/1

4:20 pm-5:05 pm

1 stop18h 45m

$1,107

CardiffChicago

CWL - ORD

CWLORD

Cardiff Wales

ven. 7/25

12:25 pm-12:10 pm

3 stops29h 45m

Chicago O'Hare Intl

ven. 8/1

3:35 pm-9:15 am

3 stops35h 40m

$1,242

CardiffChicago

CWL - MDW

CWLMDW

Cardiff Wales

lun. 10/6

9:50 am-6:36 pm

2 stops14h 46m

Chicago Midway

lun. 10/13

5:59 pm-4:45 pm

2 stops16h 46m

$1,260

CardiffChicago

CWL - MDW

CWLMDW

Cardiff Wales

lun. 10/6

9:50 am-6:36 pm

2 stops14h 46m

Chicago Midway

lun. 10/13

1:00 pm-9:15 am

2 stops14h 15m

$1,342

CardiffChicago

CWL - MDW

CWLMDW

Cardiff Wales

lun. 10/6

9:50 am-6:36 pm

2 stops14h 46m

Chicago Midway

lun. 10/13

1:00 pm-9:15 am

2 stops14h 15m

$1,483

CardiffChicago

CWL - ORD

CWLORD

Cardiff Wales

jeu. 10/30

2:30 pm-5:45 pm

2 stops32h 15m

$476

CardiffChicago

CWL - MDW

CWLMDW

Cardiff Wales

jeu. 10/30

10:20 am-9:51 am

2 stops28h 31m

$1,797

CardiffChicago

CWL - MDW

CWLMDW

Cardiff Wales

sam. 7/5

9:45 am-6:41 pm

2 stops14h 56m

$1,899

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

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, August is the cheapest month in which you can book a flight from Cardiff to Illinois (average of $245). Flying from Cardiff to Illinois in March is currently the most expensive (average of $321). 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 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

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 juin 12, 2025.
Peruse reviews from past customers who have flown with Delta, KLM and Air France from Cardiff to Illinois to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,950 reviews
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,358 reviews
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air France
7.5
Good
1,463 reviews
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.

  • 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, August is the cheapest month in which you can book a flight from Cardiff to Illinois (average of $245). Flying from Cardiff to Illinois in March is currently the most expensive (average of $321). 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

See prices for flight routes from nearby airports that may be better suited for you.
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