Which airlines fly to Illinois?

Aer Lingus, KLM and Virgin Atlantic are the top three most popular airlines that fly to Illinois from Cardiff according to our data. Aer Lingus is the first choice among our users, with 62% of people opting to fly with this airline when travelling to Illinois. Keep in mind that there are 3 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.

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 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.

£447 Cheap Flights from Cardiff to Illinois in 2025/26

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Find the cheapest flights from Cardiff to Illinois

Round-trip

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10:30 - 17:55CWL-ORD

13h 25m1 stop

19:40 - 15:30ORD-CWL

13h 50m1 stop

£447Multiple Airlines

Find Deal

Thu, 13 Nov - Tue, 18 Nov

10:30 - 17:55CWL-ORD

13h 25m1 stop

15:50 - 09:50ORD-CWL

36h 00m2 stops

£596Multiple Airlines

Find Deal

Thu, 20 Nov - Thu, 27 Nov

17:25 - 14:20CWL-ORD

26h 55m1 stop

13:25 - 09:50ORD-CWL

14h 25m2 stops

£607KLM

Find Deal

Tue, 4 Nov - Tue, 11 Nov

10:20 - 21:39CWL-ORD

17h 19m2 stops

06:45 - 09:50ORD-CWL

21h 05m2 stops

£609Delta

Find Deal

Tue, 4 Nov - Tue, 11 Nov

10:30 - 15:25CWL-ORD

34h 55m2 stops

19:40 - 15:30ORD-CWL

13h 50m1 stop

£613Multiple Airlines

Find Deal

Thu, 13 Nov - Tue, 18 Nov

10:20 - 23:40CWL-MDW

19h 20m2 stops

13:15 - 09:50MDW-CWL

14h 35m2 stops

£632KLM

Find Deal

Tue, 18 Nov - Tue, 25 Nov

10:20 - 20:29CWL-ORD

16h 09m2 stops

10:35 - 09:50ORD-CWL

17h 15m2 stops

£639Virgin Atlantic

Find Deal

Thu, 13 Nov - Tue, 18 Nov

10:20 - 23:40CWL-MDW

19h 20m2 stops

17:34 - 16:45MDW-CWL

17h 11m2 stops

£669Delta

Find Deal

Thu, 20 Nov - Thu, 27 Nov

12:00 - 13:50CWL-ORD

31h 50m2 stops

17:10 - 08:05ORD-CWL

32h 55m2 stops

£820British Airways

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Tue, 4 Nov - Tue, 11 Nov

17:25 - 21:46CWL-MDW

33h 21m2 stops

13:00 - 09:15MDW-CWL

14h 15m2 stops

£1,095Virgin Atlantic

Find Deal

Thu, 26 Mar - Mon, 30 Mar

Virgin Atlantic flights from Cardiff to Illinois

Our best Virgin Atlantic deals on Cardiff to Illinois flight tickets

Virgin Atlantic

13 Nov

CWL10:20Cardiff Wales

16h 09m

2 stops

ORD20:29Chicago O'Hare Intl

18 Nov

ORD10:35Chicago O'Hare Intl

17h 15m

2 stops

CWL09:50Cardiff Wales

£639

Find similar

Virgin Atlantic

26 Mar

CWL17:25Cardiff Wales

33h 21m

2 stops

MDW21:46Chicago Midway

30 Mar

MDW13:00Chicago Midway

14h 15m

2 stops

CWL09:15Cardiff Wales

£1,095

Find similar

KLM flights from Cardiff to Illinois

Our best KLM deals on Cardiff to Illinois flight tickets

KLM

4 Nov

CWL17:25Cardiff Wales

26h 55m

1 stop

ORD14:20Chicago O'Hare Intl

11 Nov

ORD13:25Chicago O'Hare Intl

14h 25m

2 stops

CWL09:50Cardiff Wales

£607

Find similar

KLM

18 Nov

CWL10:20Cardiff Wales

19h 20m

2 stops

MDW23:40Chicago Midway

25 Nov

MDW13:15Chicago Midway

14h 35m

2 stops

CWL09:50Cardiff Wales

£632

Find similar

KLM

20 Nov

CWL10:20Cardiff Wales

19h 42m

2 stops

ORD00:02Chicago O'Hare Intl

27 Nov

ORD13:25Chicago O'Hare Intl

14h 25m

2 stops

CWL09:50Cardiff Wales

£665

Find similar

Fly from

Fly to

Route

Depart

Return

Price

CardiffChicago

CWL - ORD

CWLORD

Cardiff Wales

Thu 13/11

10:30-17:55

1 stop13h 25m

Chicago O'Hare Intl

Tue 18/11

19:40-15:30

1 stop13h 50m

£447

CardiffChicago

CWL - ORD

CWLORD

Cardiff Wales

Thu 20/11

10:30-17:55

1 stop13h 25m

Chicago O'Hare Intl

Thu 27/11

15:50-09:50

2 stops36h 00m

£596

CardiffChicago

CWL - ORD

CWLORD

Cardiff Wales

Tue 4/11

17:25-14:20

1 stop26h 55m

Chicago O'Hare Intl

Tue 11/11

13:25-09:50

2 stops14h 25m

£607

CardiffChicago

CWL - ORD

CWLORD

Cardiff Wales

Tue 4/11

10:20-21:39

2 stops17h 19m

Chicago O'Hare Intl

Tue 11/11

06:45-09:50

2 stops21h 05m

£609

CardiffChicago

CWL - ORD

CWLORD

Cardiff Wales

Thu 13/11

10:30-15:25

2 stops34h 55m

Chicago O'Hare Intl

Tue 18/11

19:40-15:30

1 stop13h 50m

£613

CardiffChicago

CWL - MDW

CWLMDW

Cardiff Wales

Tue 18/11

10:20-23:40

2 stops19h 20m

Chicago Midway

Tue 25/11

13:15-09:50

2 stops14h 35m

£632

CardiffChicago

CWL - ORD

CWLORD

Cardiff Wales

Thu 13/11

10:20-20:29

2 stops16h 09m

Chicago O'Hare Intl

Tue 18/11

10:35-09:50

2 stops17h 15m

£639

CardiffChicago

CWL - MDW

CWLMDW

Cardiff Wales

Thu 20/11

10:20-23:40

2 stops19h 20m

Chicago Midway

Thu 27/11

17:34-16:45

2 stops17h 11m

£669

CardiffChicago

CWL - ORD

CWLORD

Cardiff Wales

Tue 4/11

12:00-13:50

2 stops31h 50m

Chicago O'Hare Intl

Tue 11/11

17:10-08:05

2 stops32h 55m

£820

CardiffChicago

CWL - MDW

CWLMDW

Cardiff Wales

Thu 26/3

17:25-21:46

2 stops33h 21m

Chicago Midway

Mon 30/3

13:00-09:15

2 stops14h 15m

£1,095

Flights are sorted by cheapest return flights first.

Sorted 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

Prices

Airlines

What is the cheapest day to depart on your flight to Illinois?

The cheapest day to depart on your flight to Illinois is on a Monday when prices can be found for as low as £607. This is often the case because there is less demand to fly during this day of the week. Flights from Cardiff to Illinois on a Tuesday will generally be more expensive and average around £900. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

Cheap Cardiff to Illinois flight deals and tips

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

Direct flights	None

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 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.

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.