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Cheap flights from Illinois to Cardiff from $582

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Cardiff departing on 8/14. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Illinois to Cardiff

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
9:00 pm - 10:50 pm
ORD
-
CWL
19h 50m
1 stop
Multiple Airlines Logo
11:15 pm - 2:00 pm
CWL
-
ORD
20h 45m
1 stop
$737Multiple Airlines
Tue, Aug 11 - Tue, Aug 18
Multiple Airlines Logo
9:00 pm - 10:50 pm
ORD
-
CWL
19h 50m
1 stop
Multiple Airlines Logo
11:15 pm - 2:00 pm
CWL
-
ORD
20h 45m
1 stop
$760Multiple Airlines
Tue, Jul 28 - Tue, Aug 4
Multiple Airlines Logo
2:15 pm - 4:45 pm
ORD
-
CWL
20h 30m
3 stops
Multiple Airlines Logo
11:15 pm - 8:29 pm
CWL
-
ORD
27h 14m
2 stops
$775Multiple Airlines
Tue, Aug 11 - Tue, Aug 18
Multiple Airlines Logo
4:55 pm - 9:50 pm
ORD
-
CWL
23h 55m
1 stop
Multiple Airlines Logo
8:25 am - 5:20 pm
CWL
-
ORD
14h 55m
2 stops
$820Multiple Airlines
Mon, Oct 26 - Mon, Nov 30
Multiple Airlines Logo
3:45 pm - 9:15 am
ORD
-
CWL
35h 30m
3 stops
Multiple Airlines Logo
9:45 pm - 2:55 pm
CWL
-
ORD
23h 10m
2 stops
$878Multiple Airlines
Sun, Aug 16 - Sun, Aug 23
Multiple Airlines Logo
3:40 pm - 9:15 am
ORD
-
CWL
35h 35m
3 stops
Multiple Airlines Logo
10:45 pm - 2:44 pm
CWL
-
ORD
21h 59m
2 stops
$879Multiple Airlines
Fri, Aug 14 - Fri, Aug 21
Multiple Airlines Logo
3:45 pm - 9:15 am
ORD
-
CWL
35h 30m
3 stops
Multiple Airlines Logo
9:45 pm - 2:55 pm
CWL
-
ORD
23h 10m
2 stops
$884Multiple Airlines
Sun, Aug 16 - Sun, Aug 23
Multiple Airlines Logo
3:45 pm - 9:15 am
ORD
-
CWL
35h 30m
3 stops
Multiple Airlines Logo
9:45 pm - 2:55 pm
CWL
-
ORD
23h 10m
2 stops
$888Multiple Airlines
Sun, Aug 16 - Sun, Aug 23
KLM Logo
12:46 pm - 9:15 am
MDW
-
CWL
14h 29m
2 stops
KLM Logo
9:45 am - 10:36 pm
CWL
-
MDW
18h 51m
2 stops
$1,130KLM
Fri, Aug 14 - Fri, Aug 21
KLM Logo
12:46 pm - 9:15 am
MDW
-
CWL
14h 29m
2 stops
KLM Logo
9:45 am - 10:36 pm
CWL
-
MDW
18h 51m
2 stops
$1,131KLM
Fri, Aug 14 - Fri, Aug 21

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KLM flights from Illinois to Cardiff

Our best KLM deals on Illinois to Cardiff flight tickets
KLM
Aug 14
ORD4:20 pmChicago O'Hare Intl
10h 55m
1 stop
CWL9:15 amCardiff Wales
Aug 21
CWL9:45 amCardiff Wales
20h 12m
2 stops
ORD11:57 pmChicago O'Hare Intl
$1,080
KLM
Aug 14
ORD4:20 pmChicago O'Hare Intl
10h 55m
1 stop
CWL9:15 amCardiff Wales
Aug 21
CWL5:15 pmCardiff Wales
27h 00m
1 stop
ORD2:15 pmChicago O'Hare Intl
$1,123
KLM
Aug 16
ORD12:29 pmChicago O'Hare Intl
14h 46m
2 stops
CWL9:15 amCardiff Wales
Aug 23
CWL5:15 pmCardiff Wales
27h 15m
1 stop
ORD2:30 pmChicago O'Hare Intl
$1,124

Virgin Atlantic flights from Illinois to Cardiff

Our best Virgin Atlantic deals on Illinois to Cardiff flight tickets
Virgin Atlantic
Aug 16
ORD4:20 pmChicago O'Hare Intl
18h 25m
1 stop
CWL4:45 pmCardiff Wales
Aug 23
CWL5:15 pmCardiff Wales
27h 15m
1 stop
ORD2:30 pmChicago O'Hare Intl
$1,096
Virgin Atlantic
Aug 16
ORD4:20 pmChicago O'Hare Intl
10h 55m
1 stop
CWL9:15 amCardiff Wales
Aug 23
CWL5:15 pmCardiff Wales
27h 15m
1 stop
ORD2:30 pmChicago O'Hare Intl
$1,101
Virgin Atlantic
Aug 16
ORD4:20 pmChicago O'Hare Intl
10h 55m
1 stop
CWL9:15 amCardiff Wales
Aug 23
CWL5:15 pmCardiff Wales
27h 15m
1 stop
ORD2:30 pmChicago O'Hare Intl
$1,104

momondo Fare Finder

 
Customize your flight search to find flights from Illinois to Cardiff 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, momondo users made 832,500 searches. Data last updated July 3, 2026.
Use the filters below to find and compare flights from Illinois to Cardiff that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Tue 8/11

9:00 pm-10:50 pm

1 stop19h 50m

Cardiff Wales

Tue 8/18

11:15 pm-2:00 pm

1 stop20h 45m

$737

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Tue 7/28

9:00 pm-10:50 pm

1 stop19h 50m

Cardiff Wales

Tue 8/4

11:15 pm-2:00 pm

1 stop20h 45m

$760

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Tue 8/11

2:15 pm-4:45 pm

3 stops20h 30m

Cardiff Wales

Tue 8/18

11:15 pm-8:29 pm

2 stops27h 14m

$775

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Mon 10/26

4:55 pm-9:50 pm

1 stop23h 55m

Cardiff Wales

Mon 11/30

8:25 am-5:20 pm

2 stops14h 55m

$820

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Sun 8/16

3:45 pm-9:15 am

3 stops35h 30m

Cardiff Wales

Sun 8/23

9:45 pm-2:55 pm

2 stops23h 10m

$878

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Fri 8/14

3:40 pm-9:15 am

3 stops35h 35m

Cardiff Wales

Fri 8/21

10:45 pm-2:44 pm

2 stops21h 59m

$879

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Sun 8/16

3:45 pm-9:15 am

3 stops35h 30m

Cardiff Wales

Sun 8/23

9:45 pm-2:55 pm

2 stops23h 10m

$884

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Sun 8/16

3:45 pm-9:15 am

3 stops35h 30m

Cardiff Wales

Sun 8/23

9:45 pm-2:55 pm

2 stops23h 10m

$888
Quickest round-trip

ChicagoCardiff

MDW - CWL

MDWCWL

Chicago Midway

Fri 8/14

12:46 pm-9:15 am

2 stops14h 29m

Cardiff Wales

Fri 8/21

9:45 am-10:36 pm

2 stops18h 51m

$1,130

ChicagoCardiff

MDW - CWL

MDWCWL

Chicago Midway

Fri 8/14

12:46 pm-9:15 am

2 stops14h 29m

Cardiff Wales

Fri 8/21

9:45 am-10:36 pm

2 stops18h 51m

$1,131

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Cardiff from

How to get the cheapest flight ticket from Illinois to Cardiff

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

Can stopping save me money on Illinois to Cardiff flights?

You could potentially save up to 57% on your flight if you consider stops on a Illinois to Cardiff flight.

Cheap Illinois to Cardiff flight deals and tips

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

Fastest flight time

15h 20m

Direct flights

None
The fastest flight from Illinois to Cardiff takes 15h 20m
There are no direct flights from Illinois to Cardiff. There are no popular flight routes from Illinois to Cardiff.
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Frequently asked questions about flying from Illinois to Cardiff

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

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

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

    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 Illinois to Cardiff Wales Airport.

  • What documentation or ID do you need to fly to Cardiff Wales Airport?

    The travel and health documents you'll need for your trip to Cardiff Wales Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Cardiff Wales Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Why use momondo?

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

Finding the right flight to Cardiff from Illinois is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Cardiff quick and easy, saving you time and money.

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

Yes. All flights to Cardiff from Illinois on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

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 Illinois to Cardiff.

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

If you are not ready to book a flight from Illinois to Cardiff now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Cardiff and let you know when they change.

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Sun 8/2
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Aer Lingus