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Cheap flights from Illinois to Cardiff from £279

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 16/9. 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 return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
19:40 - 12:50
ORD
-
CWL
11h 10m
1 stop
Multiple Airlines Logo
08:25 - 17:20
CWL
-
ORD
14h 55m
2 stops
£594Multiple Airlines
Wed, 11 Nov - Mon, 16 Nov
Multiple Airlines Logo
10:25 - 10:15
MDW
-
CWL
17h 50m
1 stop
Multiple Airlines Logo
11:35 - 09:40
CWL
-
MDW
28h 05m
1 stop
£627Multiple Airlines
Sun, 5 Jul - Mon, 20 Jul
Multiple Airlines Logo
15:45 - 10:15
ORD
-
CWL
12h 30m
1 stop
Multiple Airlines Logo
11:35 - 22:05
CWL
-
ORD
16h 30m
1 stop
£643Multiple Airlines
Sun, 5 Jul - Mon, 20 Jul
Multiple Airlines Logo
21:00 - 23:25
ORD
-
CWL
20h 25m
1 stop
Multiple Airlines Logo
23:15 - 21:35
CWL
-
ORD
28h 20m
2 stops
£661Multiple Airlines
Tue, 1 Sep - Tue, 15 Sep
Multiple Airlines Logo
10:25 - 10:15
MDW
-
CWL
17h 50m
1 stop
Multiple Airlines Logo
22:10 - 09:40
CWL
-
MDW
41h 30m
2 stops
£699Multiple Airlines
Sun, 5 Jul - Mon, 20 Jul
WestJet Logo
19:16 - 10:15
MDW
-
CWL
32h 59m
2 stops
WestJet Logo
11:35 - 12:38
CWL
-
MDW
31h 03m
2 stops
£743WestJet
Sun, 5 Jul - Mon, 20 Jul
KLM Logo
13:00 - 09:50
MDW
-
CWL
14h 50m
2 stops
KLM Logo
17:30 - 16:25
CWL
-
MDW
28h 55m
2 stops
£779KLM
Mon, 9 Nov - Mon, 16 Nov
WestJet Logo
09:49 - 10:15
MDW
-
CWL
18h 26m
2 stops
WestJet Logo
11:35 - 09:08
CWL
-
MDW
27h 33m
2 stops
£812WestJet
Fri, 10 Jul - Tue, 21 Jul
KLM Logo
12:41 - 09:15
MDW
-
CWL
14h 34m
2 stops
KLM Logo
09:45 - 22:36
CWL
-
MDW
18h 51m
2 stops
£860KLM
Tue, 28 Jul - Tue, 18 Aug
KLM Logo
13:18 - 09:15
MDW
-
CWL
13h 57m
2 stops
KLM Logo
09:45 - 22:36
CWL
-
MDW
18h 51m
2 stops
£861KLM
Tue, 28 Jul - Tue, 18 Aug

KLM flights from Illinois to Cardiff

Our best KLM deals on Illinois to Cardiff flight tickets
KLM
1 Sept
ORD16:20Chicago O'Hare Intl
18h 25m
1 stop
CWL16:45Cardiff Wales
15 Sept
CWL17:15Cardiff Wales
27h 15m
1 stop
ORD14:30Chicago O'Hare Intl
£768
KLM
7 Oct
ORD13:30Chicago O'Hare Intl
13h 45m
2 stops
CWL09:15Cardiff Wales
14 Oct
CWL09:45Cardiff Wales
10h 45m
1 stop
ORD14:30Chicago O'Hare Intl
£771
KLM
9 Nov
ORD16:25Chicago O'Hare Intl
11h 25m
1 stop
CWL09:50Cardiff Wales
16 Nov
CWL17:30Cardiff Wales
29h 07m
2 stops
ORD16:37Chicago O'Hare Intl
£775

WestJet flights from Illinois to Cardiff

Our best WestJet deals on Illinois to Cardiff flight tickets
WestJet
5 Jul
MDW19:16Chicago Midway
32h 59m
2 stops
CWL10:15Cardiff Wales
20 Jul
CWL11:35Cardiff Wales
31h 03m
2 stops
MDW12:38Chicago Midway
£743
WestJet
10 Jul
MDW09:49Chicago Midway
18h 26m
2 stops
CWL10:15Cardiff Wales
21 Jul
CWL11:35Cardiff Wales
27h 33m
2 stops
MDW09:08Chicago Midway
£812
WestJet
11 Jun
MDW19:16Chicago Midway
32h 59m
2 stops
CWL10:15Cardiff Wales
18 Jun
CWL11:35Cardiff Wales
27h 39m
2 stops
MDW09:14Chicago Midway
£921

momondo Fare Finder

 
Customise 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 279,928 searches. Data last updated 16 May 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 return flight
Fastest return journey

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Wed 11/11

19:40-12:50

1 stop11h 10m

Cardiff Wales

Mon 16/11

08:25-17:20

2 stops14h 55m

£594

ChicagoCardiff

MDW - CWL

MDWCWL

Chicago Midway

Sun 5/7

10:25-10:15

1 stop17h 50m

Cardiff Wales

Mon 20/7

11:35-09:40

1 stop28h 05m

£627

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Sun 5/7

15:45-10:15

1 stop12h 30m

Cardiff Wales

Mon 20/7

11:35-22:05

1 stop16h 30m

£643

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Tue 1/9

21:00-23:25

1 stop20h 25m

Cardiff Wales

Tue 15/9

23:15-21:35

2 stops28h 20m

£661

ChicagoCardiff

MDW - CWL

MDWCWL

Chicago Midway

Sun 5/7

10:25-10:15

1 stop17h 50m

Cardiff Wales

Mon 20/7

22:10-09:40

2 stops41h 30m

£699

ChicagoCardiff

MDW - CWL

MDWCWL

Chicago Midway

Sun 5/7

19:16-10:15

2 stops32h 59m

Cardiff Wales

Mon 20/7

11:35-12:38

2 stops31h 03m

£743

ChicagoCardiff

MDW - CWL

MDWCWL

Chicago Midway

Mon 9/11

13:00-09:50

2 stops14h 50m

Cardiff Wales

Mon 16/11

17:30-16:25

2 stops28h 55m

£779

ChicagoCardiff

MDW - CWL

MDWCWL

Chicago Midway

Fri 10/7

09:49-10:15

2 stops18h 26m

Cardiff Wales

Tue 21/7

11:35-09:08

2 stops27h 33m

£812

ChicagoCardiff

MDW - CWL

MDWCWL

Chicago Midway

Tue 28/7

12:41-09:15

2 stops14h 34m

Cardiff Wales

Tue 18/8

09:45-22:36

2 stops18h 51m

£860

ChicagoCardiff

MDW - CWL

MDWCWL

Chicago Midway

Tue 28/7

13:18-09:15

2 stops13h 57m

Cardiff Wales

Tue 18/8

09:45-22:36

2 stops18h 51m

£861

Flights are sorted by cheapest return flights first.

Showing 1-10 of 18 resultsSorted by cheapest first
1
2

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

What is the cheapest airline that flies from Illinois to Cardiff Wales?

KLM, Delta, and WestJet are the most popular carriers operating from Illinois to Cardiff Wales

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

12h 30m

Direct flights

None
The fastest flight from Illinois to Cardiff takes 12h 30m
There are no direct flights from Illinois to Cardiff. There are no popular flight routes from Illinois to Cardiff.
Search flight deals

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 updated daily.

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify 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 required travel and health documents for your Cardiff Wales Airport 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 Cardiff Wales Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Travelling to a place near Cardiff?

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

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Illinois to Cardiff. momondo saves you time and could save you money on your trip.

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?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Cardiff from Illinois.

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

Yes. momondo can track prices for Illinois to Cardiff 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.

An easier way to manage your Cardiff trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
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Find better results for your trip to the United Kingdom

Airports servicing Wales

Holyhead Anglesey Airport