Latest deals
Insights
FAQs
Price Alerts

Cheap flights from Illinois to Cardiff from £300

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 10/6. 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
Voted winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

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

Trusted and free

Trusted and free

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

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Illinois to Cardiff

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
15:45 - 21:45
ORD
-
CWL
24h 00m
1 stop
Multiple Airlines Logo
22:50 - 16:00
CWL
-
ORD
23h 10m
2 stops
£674Multiple Airlines
Sun, 16 Aug - Thu, 27 Aug
Multiple Airlines Logo
21:00 - 22:50
ORD
-
CWL
19h 50m
1 stop
Multiple Airlines Logo
23:15 - 14:00
CWL
-
ORD
20h 45m
1 stop
£689Multiple Airlines
Mon, 17 Aug - Tue, 25 Aug
Multiple Airlines Logo
21:00 - 21:45
ORD
-
CWL
18h 45m
1 stop
Multiple Airlines Logo
23:30 - 17:50
CWL
-
ORD
24h 20m
2 stops
£691Multiple Airlines
Sun, 16 Aug - Wed, 26 Aug
Multiple Airlines Logo
21:00 - 22:50
ORD
-
CWL
19h 50m
1 stop
Multiple Airlines Logo
22:10 - 14:00
CWL
-
ORD
21h 50m
1 stop
£696Multiple Airlines
Mon, 17 Aug - Mon, 24 Aug
Multiple Airlines Logo
15:45 - 21:45
ORD
-
CWL
24h 00m
1 stop
Multiple Airlines Logo
23:30 - 14:00
CWL
-
ORD
20h 30m
1 stop
£697Multiple Airlines
Sun, 16 Aug - Wed, 26 Aug
Multiple Airlines Logo
21:00 - 21:45
ORD
-
CWL
18h 45m
1 stop
Multiple Airlines Logo
22:10 - 17:50
CWL
-
ORD
25h 40m
2 stops
£698Multiple Airlines
Sun, 16 Aug - Mon, 24 Aug
Delta Logo
13:05 - 09:15
MDW
-
CWL
14h 10m
2 stops
Delta Logo
09:45 - 21:46
CWL
-
MDW
18h 01m
2 stops
£802Delta
Mon, 17 Aug - Fri, 28 Aug
KLM Logo
19:13 - 16:45
MDW
-
CWL
15h 32m
2 stops
KLM Logo
09:45 - 21:09
CWL
-
MDW
17h 24m
2 stops
£814KLM
Tue, 12 May - Tue, 19 May
Virgin Atlantic Logo
19:13 - 16:45
MDW
-
CWL
39h 32m
2 stops
Virgin Atlantic Logo
17:15 - 17:56
CWL
-
MDW
30h 41m
2 stops
£826Virgin Atlantic
Fri, 8 May - Fri, 15 May
KLM Logo
19:13 - 16:45
MDW
-
CWL
15h 32m
2 stops
KLM Logo
09:45 - 21:09
CWL
-
MDW
17h 24m
2 stops
£897KLM
Sat, 9 May - Sat, 16 May

Virgin Atlantic flights from Illinois to Cardiff

Our best Virgin Atlantic deals on Illinois to Cardiff flight tickets
Virgin Atlantic
12 May
ORD16:20Chicago O'Hare Intl
18h 25m
1 stop
CWL16:45Cardiff Wales
19 May
CWL17:15Cardiff Wales
27h 15m
1 stop
ORD14:30Chicago O'Hare Intl
£791
Virgin Atlantic
12 May
ORD14:00Chicago O'Hare Intl
20h 45m
2 stops
CWL16:45Cardiff Wales
19 May
CWL09:45Cardiff Wales
18h 42m
2 stops
ORD22:27Chicago O'Hare Intl
£804
Virgin Atlantic
8 May
MDW19:13Chicago Midway
39h 32m
2 stops
CWL16:45Cardiff Wales
15 May
CWL17:15Cardiff Wales
30h 41m
2 stops
MDW17:56Chicago Midway
£826

KLM flights from Illinois to Cardiff

Our best KLM deals on Illinois to Cardiff flight tickets
KLM
11 May
ORD16:50Chicago O'Hare Intl
17h 55m
1 stop
CWL16:45Cardiff Wales
18 May
CWL17:15Cardiff Wales
27h 00m
1 stop
ORD14:15Chicago O'Hare Intl
£811
KLM
12 May
MDW19:13Chicago Midway
15h 32m
2 stops
CWL16:45Cardiff Wales
19 May
CWL09:45Cardiff Wales
17h 24m
2 stops
MDW21:09Chicago Midway
£814
KLM
16 Aug
ORD12:15Chicago O'Hare Intl
15h 00m
2 stops
CWL09:15Cardiff Wales
26 Aug
CWL09:45Cardiff Wales
18h 21m
2 stops
ORD22:06Chicago O'Hare Intl
£822

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 29 March 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

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Sun 16/8

15:45-21:45

1 stop24h 00m

Cardiff Wales

Thu 27/8

22:50-16:00

2 stops23h 10m

£674

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Mon 17/8

21:00-22:50

1 stop19h 50m

Cardiff Wales

Tue 25/8

23:15-14:00

1 stop20h 45m

£689

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Sun 16/8

21:00-21:45

1 stop18h 45m

Cardiff Wales

Wed 26/8

23:30-17:50

2 stops24h 20m

£691

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Mon 17/8

21:00-22:50

1 stop19h 50m

Cardiff Wales

Mon 24/8

22:10-14:00

1 stop21h 50m

£696

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Sun 16/8

15:45-21:45

1 stop24h 00m

Cardiff Wales

Wed 26/8

23:30-14:00

1 stop20h 30m

£697

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Sun 16/8

21:00-21:45

1 stop18h 45m

Cardiff Wales

Mon 24/8

22:10-17:50

2 stops25h 40m

£698
Fastest return journey

ChicagoCardiff

MDW - CWL

MDWCWL

Chicago Midway

Mon 17/8

13:05-09:15

2 stops14h 10m

Cardiff Wales

Fri 28/8

09:45-21:46

2 stops18h 01m

£802

ChicagoCardiff

MDW - CWL

MDWCWL

Chicago Midway

Tue 12/5

19:13-16:45

2 stops15h 32m

Cardiff Wales

Tue 19/5

09:45-21:09

2 stops17h 24m

£814

ChicagoCardiff

MDW - CWL

MDWCWL

Chicago Midway

Fri 8/5

19:13-16:45

2 stops39h 32m

Cardiff Wales

Fri 15/5

17:15-17:56

2 stops30h 41m

£826

ChicagoCardiff

MDW - CWL

MDWCWL

Chicago Midway

Sat 9/5

19:13-16:45

2 stops15h 32m

Cardiff Wales

Sat 16/5

09:45-21:09

2 stops17h 24m

£897

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 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?

WestJet and Delta 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

10h 55m

Direct flights

None
The fastest flight from Illinois to Cardiff takes 10h 55m
There are no direct flights from Illinois to Cardiff. There are no popular flight routes from Illinois to Cardiff.
Search flight deals

  • 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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Tue 28/4
Tue 5/5
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United Kingdom

Airports servicing Wales

Holyhead Anglesey Airport