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Cheap flights from Illinois to Cardiff from $336

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 9/24. 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
8:10 pm - 7:50 amORD  Chicago O'Hare Intl-CWL Cardiff Wales
29h 40m1 stop Dublin
Multiple Airlines Logo
8:15 am - 5:20 pmCWL  Cardiff Wales-ORD Chicago O'Hare Intl
15h 05m2 stops Dublin Reykjavik Keflavik Intl
$840Multiple Airlines
Thu, Nov 5 - Sat, Nov 14
Multiple Airlines Logo
4:05 pm - 10:20 pmORD  Chicago O'Hare Intl-CWL Cardiff Wales
24h 15m2 stops Frankfurt am Main Dublin
Multiple Airlines Logo
10:50 pm - 2:50 pmCWL  Cardiff Wales-ORD Chicago O'Hare Intl
22h 00m2 stops Dublin Toronto Pearson Intl
$954Multiple Airlines
Thu, Sep 10 - Thu, Sep 17
Multiple Airlines Logo
8:10 pm - 7:50 amORD  Chicago O'Hare Intl-CWL Cardiff Wales
29h 40m1 stop Dublin
Multiple Airlines Logo
8:15 am - 6:25 pmCWL  Cardiff Wales-ORD Chicago O'Hare Intl
16h 10m1 stop Dublin
$963Multiple Airlines
Thu, Nov 5 - Sat, Nov 14
Multiple Airlines Logo
9:00 pm - 9:45 pmORD  Chicago O'Hare Intl-CWL Cardiff Wales
18h 45m1 stop Dublin
Multiple Airlines Logo
2:45 pm - 7:15 pmCWL  Cardiff Wales-ORD Chicago O'Hare Intl
34h 30m2 stops Malaga Dublin
$999Multiple Airlines
Sun, Sep 27 - Sun, Oct 4
Multiple Airlines Logo
9:00 pm - 9:45 pmORD  Chicago O'Hare Intl-CWL Cardiff Wales
18h 45m1 stop Dublin
Multiple Airlines Logo
2:45 pm - 2:00 pmCWL  Cardiff Wales-ORD Chicago O'Hare Intl
29h 15m2 stops Malaga Dublin
$1,011Multiple Airlines
Sun, Sep 27 - Sun, Oct 4
Multiple Airlines Logo
3:45 pm - 9:45 pmORD  Chicago O'Hare Intl-CWL Cardiff Wales
24h 00m1 stop Dublin
Multiple Airlines Logo
9:45 pm - 2:00 pmCWL  Cardiff Wales-ORD Chicago O'Hare Intl
22h 15m1 stop Dublin
$1,012Multiple Airlines
Sun, Sep 27 - Sun, Oct 4
Multiple Airlines Logo
7:25 pm - 10:50 pmORD  Chicago O'Hare Intl-CWL Cardiff Wales
21h 25m2 stops Reykjavik Keflavik Intl Dublin
Multiple Airlines Logo
10:10 pm - 2:00 pmCWL  Cardiff Wales-ORD Chicago O'Hare Intl
21h 50m1 stop Dublin
$1,036Multiple Airlines
Mon, Sep 28 - Mon, Oct 5
Multiple Airlines Logo
7:25 pm - 10:50 pmORD  Chicago O'Hare Intl-CWL Cardiff Wales
21h 25m2 stops Reykjavik Keflavik Intl Dublin
Multiple Airlines Logo
10:10 pm - 2:00 pmCWL  Cardiff Wales-ORD Chicago O'Hare Intl
21h 50m1 stop Dublin
$1,039Multiple Airlines
Mon, Sep 28 - Mon, Oct 5
Multiple Airlines Logo
7:25 pm - 10:50 pmORD  Chicago O'Hare Intl-CWL Cardiff Wales
21h 25m2 stops Reykjavik Keflavik Intl Dublin
Multiple Airlines Logo
10:10 pm - 2:00 pmCWL  Cardiff Wales-ORD Chicago O'Hare Intl
21h 50m1 stop Dublin
$1,040Multiple Airlines
Mon, Sep 28 - Mon, Oct 5
Multiple Airlines Logo
7:25 pm - 10:50 pmORD  Chicago O'Hare Intl-CWL Cardiff Wales
21h 25m2 stops Reykjavik Keflavik Intl Dublin
Multiple Airlines Logo
10:10 pm - 2:00 pmCWL  Cardiff Wales-ORD Chicago O'Hare Intl
21h 50m1 stop Dublin
$1,042Multiple Airlines
Mon, Sep 28 - Mon, Oct 5

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Delta flights from Illinois to Cardiff

Our best Delta deals on Illinois to Cardiff flight tickets
Delta
Sep 23
ORD4:50 pmChicago O'Hare Intl
17h 55m
1 stop
CWL4:45 pmCardiff Wales
Oct 7
CWL9:45 amCardiff Wales
10h 45m
1 stop
ORD2:30 pmChicago O'Hare Intl
$1,077
Delta
Sep 23
ORD10:29 amChicago O'Hare Intl
16h 46m
2 stops
CWL9:15 amCardiff Wales
Oct 7
CWL9:45 amCardiff Wales
10h 45m
1 stop
ORD2:30 pmChicago O'Hare Intl
$1,082
Delta
Sep 23
ORD10:25 amChicago O'Hare Intl
16h 50m
2 stops
CWL9:15 amCardiff Wales
Oct 7
CWL9:45 amCardiff Wales
17h 07m
2 stops
ORD8:52 pmChicago O'Hare Intl
$1,091

KLM flights from Illinois to Cardiff

Our best KLM deals on Illinois to Cardiff flight tickets
KLM
Sep 25
ORD4:15 pmChicago O'Hare Intl
11h 00m
1 stop
CWL9:15 amCardiff Wales
Oct 2
CWL9:45 amCardiff Wales
18h 47m
2 stops
ORD10:32 pmChicago O'Hare Intl
$1,086
KLM
Sep 23
MDW7:13 pmChicago Midway
15h 32m
2 stops
CWL4:45 pmCardiff Wales
Oct 7
CWL9:45 amCardiff Wales
18h 48m
2 stops
MDW10:33 pmChicago Midway
$1,091
KLM
Sep 10
ORD4:15 pmChicago O'Hare Intl
11h 00m
1 stop
CWL9:15 amCardiff Wales
Sep 17
CWL5:15 pmCardiff Wales
27h 00m
1 stop
ORD2:15 pmChicago O'Hare Intl
$1,128

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 August 15, 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 Chicago O'Hare Intl - CWL Cardiff Wales

ORDCWL

Chicago O'Hare Intl

Thu 11/5

8:10 pm-7:50 am

1 stop29h 40m

Cardiff Wales

Sat 11/14

8:15 am-5:20 pm

2 stops15h 05m

$840

ChicagoCardiff

ORD Chicago O'Hare Intl - CWL Cardiff Wales

ORDCWL

Chicago O'Hare Intl

Thu 9/10

4:05 pm-10:20 pm

2 stops24h 15m

Cardiff Wales

Thu 9/17

10:50 pm-2:50 pm

2 stops22h 00m

$954

ChicagoCardiff

ORD Chicago O'Hare Intl - CWL Cardiff Wales

ORDCWL

Chicago O'Hare Intl

Thu 11/5

8:10 pm-7:50 am

1 stop29h 40m

Cardiff Wales

Sat 11/14

8:15 am-6:25 pm

1 stop16h 10m

$963

ChicagoCardiff

ORD Chicago O'Hare Intl - CWL Cardiff Wales

ORDCWL

Chicago O'Hare Intl

Sun 9/27

9:00 pm-9:45 pm

1 stop18h 45m

Cardiff Wales

Sun 10/4

2:45 pm-7:15 pm

2 stops34h 30m

$999

ChicagoCardiff

ORD Chicago O'Hare Intl - CWL Cardiff Wales

ORDCWL

Chicago O'Hare Intl

Sun 9/27

9:00 pm-9:45 pm

1 stop18h 45m

Cardiff Wales

Sun 10/4

2:45 pm-2:00 pm

2 stops29h 15m

$1,011

ChicagoCardiff

ORD Chicago O'Hare Intl - CWL Cardiff Wales

ORDCWL

Chicago O'Hare Intl

Sun 9/27

3:45 pm-9:45 pm

1 stop24h 00m

Cardiff Wales

Sun 10/4

9:45 pm-2:00 pm

1 stop22h 15m

$1,012
Quickest round-trip

ChicagoCardiff

ORD Chicago O'Hare Intl - CWL Cardiff Wales

ORDCWL

Chicago O'Hare Intl

Mon 9/28

7:25 pm-10:50 pm

2 stops21h 25m

Cardiff Wales

Mon 10/5

10:10 pm-2:00 pm

1 stop21h 50m

$1,036

ChicagoCardiff

ORD Chicago O'Hare Intl - CWL Cardiff Wales

ORDCWL

Chicago O'Hare Intl

Mon 9/28

7:25 pm-10:50 pm

2 stops21h 25m

Cardiff Wales

Mon 10/5

10:10 pm-2:00 pm

1 stop21h 50m

$1,039

ChicagoCardiff

ORD Chicago O'Hare Intl - CWL Cardiff Wales

ORDCWL

Chicago O'Hare Intl

Mon 9/28

7:25 pm-10:50 pm

2 stops21h 25m

Cardiff Wales

Mon 10/5

10:10 pm-2:00 pm

1 stop21h 50m

$1,040

ChicagoCardiff

ORD Chicago O'Hare Intl - CWL Cardiff Wales

ORDCWL

Chicago O'Hare Intl

Mon 9/28

7:25 pm-10:50 pm

2 stops21h 25m

Cardiff Wales

Mon 10/5

10:10 pm-2:00 pm

1 stop21h 50m

$1,042

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

11h 00m

Direct flights

None
The fastest flight from Illinois to Cardiff takes 11h 00m
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.

Traveling to a place near Cardiff?

Book flights to Cardiff if you plan to visit one of these locations
Bridgend

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.

An easier way to manage your Cardiff trip

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Fly your favorite airline to Cardiff

Airlines are sorted and displayed according to clicks in the past 7 days on momondo
Aer Lingus