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Cheap flights from Illinois to Cardiff from $417

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 9/16. 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
0 bags

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Find the cheapest flights from Illinois to Cardiff

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
10:25 am - 10:15 am
MDW
-
CWL
17h 50m
1 stop
Multiple Airlines Logo
11:35 am - 9:40 am
CWL
-
MDW
28h 05m
1 stop
$836Multiple Airlines
Sun, Jul 5 - Mon, Jul 20
Multiple Airlines Logo
3:45 pm - 10:15 am
ORD
-
CWL
12h 30m
1 stop
Multiple Airlines Logo
11:35 am - 10:05 pm
CWL
-
ORD
16h 30m
1 stop
$857Multiple Airlines
Sun, Jul 5 - Mon, Jul 20
Multiple Airlines Logo
10:25 am - 10:15 am
MDW
-
CWL
17h 50m
1 stop
Multiple Airlines Logo
10:10 pm - 9:40 am
CWL
-
MDW
41h 30m
2 stops
$932Multiple Airlines
Sun, Jul 5 - Mon, Jul 20
Multiple Airlines Logo
4:37 pm - 11:05 pm
ORD
-
CWL
24h 28m
2 stops
Multiple Airlines Logo
10:10 pm - 4:59 pm
CWL
-
ORD
24h 49m
2 stops
$975Multiple Airlines
Tue, Jun 2 - Mon, Jun 8
WestJet Logo
7:16 pm - 10:15 am
MDW
-
CWL
32h 59m
2 stops
WestJet Logo
11:35 am - 12:38 pm
CWL
-
MDW
31h 03m
2 stops
$990WestJet
Sun, Jul 5 - Mon, Jul 20
Multiple Airlines Logo
3:45 pm - 9:45 pm
ORD
-
CWL
24h 00m
1 stop
Multiple Airlines Logo
11:35 am - 11:05 pm
CWL
-
ORD
41h 30m
2 stops
$999Multiple Airlines
Sun, Jul 5 - Mon, Jul 20
KLM Logo
4:20 pm - 4:45 pm
ORD
-
CWL
18h 25m
1 stop
KLM Logo
5:15 pm - 2:30 pm
CWL
-
ORD
27h 15m
1 stop
$1,076KLM
Tue, Jul 28 - Tue, Aug 18
KLM Logo
4:20 pm - 4:45 pm
ORD
-
CWL
18h 25m
1 stop
KLM Logo
5:15 pm - 2:30 pm
CWL
-
ORD
27h 15m
1 stop
$1,078KLM
Tue, Jul 28 - Tue, Aug 18
Virgin Atlantic Logo
1:49 pm - 5:05 pm
MDW
-
CWL
21h 16m
2 stops
Virgin Atlantic Logo
5:15 pm - 6:18 pm
CWL
-
MDW
31h 03m
2 stops
$1,133Virgin Atlantic
Fri, Jul 10 - Wed, Jul 22
WestJet Logo
7:16 pm - 10:15 am
MDW
-
CWL
32h 59m
2 stops
WestJet Logo
11:35 am - 9:14 am
CWL
-
MDW
27h 39m
2 stops
$1,227WestJet
Thu, Jun 11 - Thu, Jun 18

Virgin Atlantic flights from Illinois to Cardiff

Our best Virgin Atlantic deals on Illinois to Cardiff flight tickets
Virgin Atlantic
Jul 10
ORD4:20 pmChicago O'Hare Intl
18h 45m
1 stop
CWL5:05 pmCardiff Wales
Jul 22
CWL5:15 pmCardiff Wales
27h 00m
1 stop
ORD2:15 pmChicago O'Hare Intl
$1,128
Virgin Atlantic
Jul 10
MDW1:49 pmChicago Midway
21h 16m
2 stops
CWL5:05 pmCardiff Wales
Jul 22
CWL5:15 pmCardiff Wales
31h 03m
2 stops
MDW6:18 pmChicago Midway
$1,133
Virgin Atlantic
Jul 10
ORD4:20 pmChicago O'Hare Intl
10h 55m
1 stop
CWL9:15 amCardiff Wales
Jul 22
CWL5:15 pmCardiff Wales
27h 00m
1 stop
ORD2:15 pmChicago O'Hare Intl
$1,135

KLM flights from Illinois to Cardiff

Our best KLM deals on Illinois to Cardiff flight tickets
KLM
Sep 1
ORD4:20 pmChicago O'Hare Intl
18h 25m
1 stop
CWL4:45 pmCardiff Wales
Sep 15
CWL5:15 pmCardiff Wales
27h 15m
1 stop
ORD2:30 pmChicago O'Hare Intl
$1,023
KLM
Oct 7
ORD1:30 pmChicago O'Hare Intl
13h 45m
2 stops
CWL9:15 amCardiff Wales
Oct 14
CWL9:45 amCardiff Wales
10h 45m
1 stop
ORD2:30 pmChicago O'Hare Intl
$1,028
KLM
Nov 9
ORD4:25 pmChicago O'Hare Intl
11h 25m
1 stop
CWL9:50 amCardiff Wales
Nov 16
CWL5:30 pmCardiff Wales
29h 07m
2 stops
ORD4:37 pmChicago O'Hare Intl
$1,033

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 May 17, 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

MDW - CWL

MDWCWL

Chicago Midway

Sun 7/5

10:25 am-10:15 am

1 stop17h 50m

Cardiff Wales

Mon 7/20

11:35 am-9:40 am

1 stop28h 05m

$836
Quickest round-trip

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Sun 7/5

3:45 pm-10:15 am

1 stop12h 30m

Cardiff Wales

Mon 7/20

11:35 am-10:05 pm

1 stop16h 30m

$857

ChicagoCardiff

MDW - CWL

MDWCWL

Chicago Midway

Sun 7/5

10:25 am-10:15 am

1 stop17h 50m

Cardiff Wales

Mon 7/20

10:10 pm-9:40 am

2 stops41h 30m

$932

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Tue 6/2

4:37 pm-11:05 pm

2 stops24h 28m

Cardiff Wales

Mon 6/8

10:10 pm-4:59 pm

2 stops24h 49m

$975

ChicagoCardiff

MDW - CWL

MDWCWL

Chicago Midway

Sun 7/5

7:16 pm-10:15 am

2 stops32h 59m

Cardiff Wales

Mon 7/20

11:35 am-12:38 pm

2 stops31h 03m

$990

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Sun 7/5

3:45 pm-9:45 pm

1 stop24h 00m

Cardiff Wales

Mon 7/20

11:35 am-11:05 pm

2 stops41h 30m

$999

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Tue 7/28

4:20 pm-4:45 pm

1 stop18h 25m

Cardiff Wales

Tue 8/18

5:15 pm-2:30 pm

1 stop27h 15m

$1,076

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Tue 7/28

4:20 pm-4:45 pm

1 stop18h 25m

Cardiff Wales

Tue 8/18

5:15 pm-2:30 pm

1 stop27h 15m

$1,078

ChicagoCardiff

MDW - CWL

MDWCWL

Chicago Midway

Fri 7/10

1:49 pm-5:05 pm

2 stops21h 16m

Cardiff Wales

Wed 7/22

5:15 pm-6:18 pm

2 stops31h 03m

$1,133

ChicagoCardiff

MDW - CWL

MDWCWL

Chicago Midway

Thu 6/11

7:16 pm-10:15 am

2 stops32h 59m

Cardiff Wales

Thu 6/18

11:35 am-9:14 am

2 stops27h 39m

$1,227

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 resultsSorted by cheapest first
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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

10h 25m

Direct flights

None
The fastest flight from Illinois to Cardiff takes 10h 25m
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.

An easier way to manage your Cardiff trip

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Tue 6/16
Tue 6/23
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Aer Lingus