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.

£671 Cheap Flights from Cardiff to Illinois in 2025/26

1 adult

0 bags

Voted winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Cardiff to Illinois

Round-trip

Cheap return flights

Enter your travel dates to find the best prices.

10:20 - 20:53

CWL

ORD

16h 33m2 stops

13:55 - 09:45

ORD

CWL

13h 50m2 stops

£671KLM

Sat, 24 Jan - Sat, 31 Jan

10:20 - 18:36

CWL

MDW

38h 16m2 stops

09:33 - 09:45

MDW

CWL

18h 12m2 stops

£672Virgin Atlantic

Sat, 24 Jan - Sat, 31 Jan

20:05 - 14:45

CWL

ORD

24h 40m2 stops

05:15 - 20:55

ORD

CWL

33h 40m3 stops

£688Multiple Airlines

Sat, 24 Jan - Sat, 31 Jan

10:20 - 14:45

CWL

ORD

34h 25m3 stops

05:15 - 20:55

ORD

CWL

33h 40m3 stops

£751Multiple Airlines

Sat, 24 Jan - Sat, 31 Jan

20:05 - 19:15

CWL

ORD

29h 10m1 stop

21:00 - 20:55

ORD

CWL

17h 55m1 stop

£848Multiple Airlines

Sat, 24 Jan - Sat, 31 Jan

Fly from

Fly to

Route

Depart

Return

Price

CardiffChicago

CWL - ORD

CWLORD

Cardiff Wales

Sat 24/1

10:20-20:53

2 stops16h 33m

Chicago O'Hare Intl

Sat 31/1

13:55-09:45

2 stops13h 50m

£671

CardiffChicago

CWL - MDW

CWLMDW

Cardiff Wales

Sat 24/1

10:20-18:36

2 stops38h 16m

Chicago Midway

Sat 31/1

09:33-09:45

2 stops18h 12m

£672

CardiffChicago

CWL - ORD

CWLORD

Cardiff Wales

Sat 24/1

20:05-14:45

2 stops24h 40m

Chicago O'Hare Intl

Sat 31/1

05:15-20:55

3 stops33h 40m

£688

CardiffChicago

CWL - ORD

CWLORD

Cardiff Wales

Sat 24/1

10:20-14:45

3 stops34h 25m

Chicago O'Hare Intl

Sat 31/1

05:15-20:55

3 stops33h 40m

£751

CardiffChicago

CWL - ORD

CWLORD

Cardiff Wales

Sat 24/1

20:05-19:15

1 stop29h 10m

Chicago O'Hare Intl

Sat 31/1

21:00-20:55

1 stop17h 55m

£848

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

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 £610. 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 £904. 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

Fastest flight time	13h 25m
Direct flights	None

The fastest flight from Cardiff to Illinois takes 13h 25m

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.