When did momondo last update prices for flights from Cardiff Wales Airport to Illinois?

Prices for flights from Cardiff Wales Airport to Illinois are refreshed on a daily basis.

How many operators does momondo search for flights from Cardiff Wales Airport to Illinois?

As of March 2026, there is 1 operator available to choose from for flights from Cardiff Wales Airport to Illinois.

How old do you have to be to fly from Cardiff Wales Airport to Illinois?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Cardiff Wales Airport to Illinois.

What documentation or ID do you need to fly to Illinois?

The required travel and health documents for your Illinois trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Illinois. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

£323 Cheap Flights from Cardiff to Illinois in 2026

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Find the cheapest flights from Cardiff to Illinois

Round-trip

One-way

Cheap return flights

Enter your travel dates to find the best prices.

17:15 - 14:15

CWL

ORD

27h 00m

1 stop

16:20 - 09:15

ORD

CWL

10h 55m

1 stop

£681KLM

Thu, 23 Apr - Thu, 30 Apr

17:15 - 14:30

CWL

ORD

27h 15m

1 stop

16:20 - 16:45

ORD

CWL

18h 25m

1 stop

£685Air France

Sun, 26 Apr - Sun, 3 May

09:45 - 20:40

CWL

ORD

16h 55m

2 stops

08:52 - 09:15

ORD

CWL

18h 23m

2 stops

£687Delta

Thu, 23 Apr - Thu, 30 Apr

09:45 - 20:40

CWL

ORD

16h 55m

2 stops

16:20 - 09:15

ORD

CWL

10h 55m

1 stop

£688KLM

Thu, 23 Apr - Thu, 30 Apr

09:45 - 17:58

CWL

MDW

38h 13m

2 stops

09:27 - 16:45

MDW

CWL

25h 18m

2 stops

£689Virgin Atlantic

Thu, 23 Apr - Thu, 30 Apr

09:45 - 14:30

CWL

ORD

10h 45m

1 stop

13:06 - 16:45

ORD

CWL

21h 39m

2 stops

£703Delta

Mon, 20 Apr - Wed, 6 May

17:15 - 14:30

CWL

ORD

27h 15m

1 stop

16:20 - 16:45

ORD

CWL

18h 25m

1 stop

£704Virgin Atlantic

Sun, 26 Apr - Sun, 3 May

17:15 - 14:15

CWL

ORD

27h 00m

1 stop

18:10 - 16:45

ORD

CWL

16h 35m

2 stops

£706Multiple Airlines

Mon, 22 Jun - Tue, 7 Jul

09:45 - 20:40

CWL

ORD

16h 55m

2 stops

06:25 - 09:15

ORD

CWL

20h 50m

2 stops

£707Delta

Mon, 20 Apr - Wed, 6 May

17:15 - 14:15

CWL

ORD

27h 00m

1 stop

16:50 - 16:45

ORD

CWL

17h 55m

1 stop

£708KLM

Mon, 22 Jun - Mon, 6 Jul

KLM flights from Cardiff to Illinois

Our best KLM deals on Cardiff to Illinois flight tickets

KLM

23 Apr

CWL17:15Cardiff Wales

27h 00m

1 stop

ORD14:15Chicago O'Hare Intl

30 Apr

ORD16:20Chicago O'Hare Intl

10h 55m

1 stop

CWL09:15Cardiff Wales

£681

KLM

23 Apr

CWL09:45Cardiff Wales

16h 55m

2 stops

ORD20:40Chicago O'Hare Intl

30 Apr

ORD16:20Chicago O'Hare Intl

10h 55m

1 stop

CWL09:15Cardiff Wales

£688

KLM

22 Jun

CWL17:15Cardiff Wales

27h 00m

1 stop

ORD14:15Chicago O'Hare Intl

6 Jul

ORD16:50Chicago O'Hare Intl

17h 55m

1 stop

CWL16:45Cardiff Wales

£708

Air France flights from Cardiff to Illinois

Our best Air France deals on Cardiff to Illinois flight tickets

Air France

26 Apr

CWL17:15Cardiff Wales

27h 15m

1 stop

ORD14:30Chicago O'Hare Intl

3 May

ORD16:20Chicago O'Hare Intl

18h 25m

1 stop

CWL16:45Cardiff Wales

£685

Air France

1 Apr

CWL09:45Cardiff Wales

10h 45m

1 stop

ORD14:30Chicago O'Hare Intl

30 Apr

ORD16:20Chicago O'Hare Intl

18h 25m

1 stop

CWL16:45Cardiff Wales

£746

Air France

1 Apr

CWL09:45Cardiff Wales

18h 46m

2 stops

MDW22:31Chicago Midway

31 Jul

MDW17:59Chicago Midway

17h 06m

2 stops

CWL17:05Cardiff Wales

£925

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

CardiffChicago

CWL - ORD

CWLORD

Cardiff Wales

Thu 23/4

17:15-14:15

1 stop27h 00m

Chicago O'Hare Intl

Thu 30/4

16:20-09:15

1 stop10h 55m

£681

CardiffChicago

CWL - ORD

CWLORD

Cardiff Wales

Sun 26/4

17:15-14:30

1 stop27h 15m

Chicago O'Hare Intl

Sun 3/5

16:20-16:45

1 stop18h 25m

£685

CardiffChicago

CWL - ORD

CWLORD

Cardiff Wales

Thu 23/4

09:45-20:40

2 stops16h 55m

Chicago O'Hare Intl

Thu 30/4

08:52-09:15

2 stops18h 23m

£687

Fastest return journey

CardiffChicago

CWL - ORD

CWLORD

Cardiff Wales

Thu 23/4

09:45-20:40

2 stops16h 55m

Chicago O'Hare Intl

Thu 30/4

16:20-09:15

1 stop10h 55m

£688

CardiffChicago

CWL - MDW

CWLMDW

Cardiff Wales

Thu 23/4

09:45-17:58

2 stops38h 13m

Chicago Midway

Thu 30/4

09:27-16:45

2 stops25h 18m

£689

CardiffChicago

CWL - ORD

CWLORD

Cardiff Wales

Mon 20/4

09:45-14:30

1 stop10h 45m

Chicago O'Hare Intl

Wed 6/5

13:06-16:45

2 stops21h 39m

£703

CardiffChicago

CWL - ORD

CWLORD

Cardiff Wales

Sun 26/4

17:15-14:30

1 stop27h 15m

Chicago O'Hare Intl

Sun 3/5

16:20-16:45

1 stop18h 25m

£704

CardiffChicago

CWL - ORD

CWLORD

Cardiff Wales

Mon 22/6

17:15-14:15

1 stop27h 00m

Chicago O'Hare Intl

Tue 7/7

18:10-16:45

2 stops16h 35m

£706

CardiffChicago

CWL - ORD

CWLORD

Cardiff Wales

Mon 20/4

09:45-20:40

2 stops16h 55m

Chicago O'Hare Intl

Wed 6/5

06:25-09:15

2 stops20h 50m

£707

CardiffChicago

CWL - ORD

CWLORD

Cardiff Wales

Mon 22/6

17:15-14:15

1 stop27h 00m

Chicago O'Hare Intl

Mon 6/7

16:50-16:45

1 stop17h 55m

£708

Flights are sorted by cheapest return flights first.

Showing 1-10 of 19 resultsSorted by cheapest first

How to get the cheapest flight ticket from Cardiff to Illinois

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Cardiff Wales to Illinois?

WestJet, Virgin Atlantic, and Delta are the most popular carriers operating from Cardiff Wales to Illinois

Cheap Cardiff to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Cardiff to Illinois

Fastest flight time	18h 46m
Direct flights	None

The fastest flight from Cardiff to Illinois takes 18h 46m

There are no direct flights from Cardiff to Illinois. There are no popular flight routes from Cardiff to Illinois.

Search flight deals

When did momondo last update prices for flights from Cardiff Wales Airport to Illinois?
Prices for flights from Cardiff Wales Airport to Illinois are refreshed on a daily basis.
How many operators does momondo search for flights from Cardiff Wales Airport to Illinois?
As of March 2026, there is 1 operator available to choose from for flights from Cardiff Wales Airport to Illinois.
How old do you have to be to fly from Cardiff Wales Airport to Illinois?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Cardiff Wales Airport to Illinois.
What documentation or ID do you need to fly to Illinois?
The required travel and health documents for your Illinois trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Illinois. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Cardiff to Illinois

Compare and see reviews for airlines that fly from Cardiff to Illinois with momondo

Airline	Rating	Free Cancellation	Price
KLM	PriceFrom £550	Free Cancellation	Rating 7.8 1,471 reviews		Search KLM flights

Why use momondo?

Why should I use momondo to find a flight deal from Cardiff to Illinois?

It is quick and easy to find Cardiff to Illinois flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Illinois that suits you.

Can I find flights from Cardiff to Illinois with flexible booking policies on momondo?

momondo does allow users to show only those flights to Illinois from Cardiff which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Cardiff to Illinois?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Cardiff to Illinois.

I’m not ready to book a flight from Cardiff to Illinois right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Cardiff to Illinois flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.