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Cheap flights from Illinois to Cardiff from $791

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Cardiff departing on 6/2. 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
3:45 pm - 11:25 pm
ORD
-
CWL
25h 40m
1 stop
Multiple Airlines Logo
11:50 pm - 6:15 pm
CWL
-
ORD
24h 25m
2 stops
$791Multiple Airlines
Tue, Jun 2 - Wed, Jun 10
KLM Logo
5:25 pm - 9:50 am
ORD
-
CWL
11h 25m
1 stop
KLM Logo
10:20 am - 3:20 pm
CWL
-
ORD
34h 00m
1 stop
$837KLM
Sun, Mar 8 - Sat, Mar 14
KLM Logo
4:50 pm - 9:15 am
ORD
-
CWL
10h 25m
1 stop
KLM Logo
5:15 pm - 2:30 pm
CWL
-
ORD
27h 15m
1 stop
$852KLM
Mon, May 11 - Sun, May 17
KLM Logo
10:40 am - 9:15 am
ORD
-
CWL
16h 35m
2 stops
KLM Logo
5:15 pm - 2:30 pm
CWL
-
ORD
27h 15m
1 stop
$857KLM
Mon, May 11 - Sun, May 17
Multiple Airlines Logo
9:00 pm - 10:50 pm
ORD
-
CWL
19h 50m
1 stop
Multiple Airlines Logo
10:45 pm - 6:15 pm
CWL
-
ORD
25h 30m
2 stops
$858Multiple Airlines
Mon, Apr 20 - Fri, Apr 24
KLM Logo
4:20 pm - 9:15 am
ORD
-
CWL
10h 55m
1 stop
KLM Logo
5:15 pm - 2:30 pm
CWL
-
ORD
27h 15m
1 stop
$861KLM
Fri, Apr 24 - Tue, Apr 28
Virgin Atlantic Logo
1:36 pm - 5:05 pm
ORD
-
CWL
21h 29m
2 stops
Virgin Atlantic Logo
5:15 pm - 2:30 pm
CWL
-
ORD
27h 15m
1 stop
$866Virgin Atlantic
Fri, Apr 24 - Tue, Apr 28
Delta Logo
8:52 am - 9:15 am
ORD
-
CWL
18h 23m
2 stops
Delta Logo
9:45 am - 11:59 pm
CWL
-
ORD
20h 14m
2 stops
$876Delta
Fri, Apr 24 - Tue, Apr 28
Virgin Atlantic Logo
5:25 pm - 9:50 am
ORD
-
CWL
11h 25m
1 stop
Virgin Atlantic Logo
5:30 pm - 3:20 pm
CWL
-
ORD
26h 50m
1 stop
$894Virgin Atlantic
Sun, Mar 8 - Sun, Mar 15
KLM Logo
10:40 am - 9:15 am
ORD
-
CWL
16h 35m
2 stops
KLM Logo
5:15 pm - 3:02 pm
CWL
-
ORD
27h 47m
2 stops
$925KLM
Mon, May 11 - Sun, May 17

Virgin Atlantic flights from Illinois to Cardiff

Our best Virgin Atlantic deals on Illinois to Cardiff flight tickets
Virgin Atlantic
Apr 24
ORD1:36 pmChicago O'Hare Intl
21h 29m
2 stops
CWL5:05 pmCardiff Wales
Apr 28
CWL5:15 pmCardiff Wales
27h 15m
1 stop
ORD2:30 pmChicago O'Hare Intl
$866
Virgin Atlantic
Mar 8
ORD5:25 pmChicago O'Hare Intl
11h 25m
1 stop
CWL9:50 amCardiff Wales
Mar 15
CWL5:30 pmCardiff Wales
26h 50m
1 stop
ORD3:20 pmChicago O'Hare Intl
$894

Delta flights from Illinois to Cardiff

Our best Delta deals on Illinois to Cardiff flight tickets
Delta
Apr 24
ORD8:52 amChicago O'Hare Intl
18h 23m
2 stops
CWL9:15 amCardiff Wales
Apr 28
CWL9:45 amCardiff Wales
20h 14m
2 stops
ORD11:59 pmChicago O'Hare Intl
$876
Delta
Mar 26
ORD11:10 amChicago O'Hare Intl
17h 40m
2 stops
CWL9:50 amCardiff Wales
Apr 2
CWL9:45 amCardiff Wales
18h 31m
2 stops
ORD10:16 pmChicago O'Hare Intl
$1,066

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 February 11, 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

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Tue 6/2

3:45 pm-11:25 pm

1 stop25h 40m

Cardiff Wales

Wed 6/10

11:50 pm-6:15 pm

2 stops24h 25m

$791

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Sun 3/8

5:25 pm-9:50 am

1 stop11h 25m

Cardiff Wales

Sat 3/14

10:20 am-3:20 pm

1 stop34h 00m

$837

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Mon 5/11

4:50 pm-9:15 am

1 stop10h 25m

Cardiff Wales

Sun 5/17

5:15 pm-2:30 pm

1 stop27h 15m

$852

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Mon 5/11

10:40 am-9:15 am

2 stops16h 35m

Cardiff Wales

Sun 5/17

5:15 pm-2:30 pm

1 stop27h 15m

$857

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Mon 4/20

9:00 pm-10:50 pm

1 stop19h 50m

Cardiff Wales

Fri 4/24

10:45 pm-6:15 pm

2 stops25h 30m

$858

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Fri 4/24

4:20 pm-9:15 am

1 stop10h 55m

Cardiff Wales

Tue 4/28

5:15 pm-2:30 pm

1 stop27h 15m

$861

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Fri 4/24

1:36 pm-5:05 pm

2 stops21h 29m

Cardiff Wales

Tue 4/28

5:15 pm-2:30 pm

1 stop27h 15m

$866

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Fri 4/24

8:52 am-9:15 am

2 stops18h 23m

Cardiff Wales

Tue 4/28

9:45 am-11:59 pm

2 stops20h 14m

$876

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Sun 3/8

5:25 pm-9:50 am

1 stop11h 25m

Cardiff Wales

Sun 3/15

5:30 pm-3:20 pm

1 stop26h 50m

$894

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Mon 5/11

10:40 am-9:15 am

2 stops16h 35m

Cardiff Wales

Sun 5/17

5:15 pm-3:02 pm

2 stops27h 47m

$925

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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.
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 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.

  • How do I get Price Alerts for flights from Illinois to Cardiff?

    Confirm your travel details to search for the latest offers for flights from Illinois to Cardiff. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

  • How can I save money on flights from Illinois to Cardiff with momondo?

    By using tools like our “Price Calendar”, you can see the best day to fly round-trip for your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

  • How does momondo find its flight prices?

    We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

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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