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Cheap flights from Illinois to Cardiff from $302

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 11/17. 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.
Delta Logo
4:25 pm - 9:50 amORD-CWL
11h 25m1 stop
Delta Logo
10:20 am - 2:20 pmCWL-ORD
34h 00m1 stop
$828Delta
Find Deal
Wed, Dec 3 - Sun, Dec 7
Delta Logo
4:25 pm - 4:55 pmORD-CWL
18h 30m1 stop
Delta Logo
10:20 am - 2:20 pmCWL-ORD
34h 00m1 stop
$829Delta
Find Deal
Wed, Dec 3 - Sun, Dec 7
Delta Logo
10:36 am - 4:55 pmORD-CWL
24h 19m2 stops
Delta Logo
10:20 am - 2:20 pmCWL-ORD
34h 00m1 stop
$833Delta
Find Deal
Wed, Dec 3 - Sun, Dec 7
Delta Logo
10:45 am - 9:50 amORD-CWL
17h 05m2 stops
Delta Logo
10:20 am - 2:20 pmCWL-ORD
34h 00m1 stop
$834Delta
Find Deal
Wed, Dec 3 - Sun, Dec 7
Delta Logo
10:45 am - 9:50 amORD-CWL
17h 05m2 stops
Delta Logo
10:20 am - 12:01 amCWL-ORD
19h 41m2 stops
$843Delta
Find Deal
Wed, Dec 3 - Sun, Dec 7
Delta Logo
10:49 am - 9:50 amMDW-CWL
41h 01m2 stops
Delta Logo
10:20 am - 11:47 pmCWL-MDW
19h 27m2 stops
$844Delta
Find Deal
Wed, Dec 3 - Sun, Dec 7
Delta Logo
8:55 am - 9:50 amORD-CWL
18h 55m2 stops
Delta Logo
10:20 am - 12:01 amCWL-ORD
19h 41m2 stops
$844Delta
Find Deal
Wed, Dec 3 - Sun, Dec 7
KLM Logo
10:49 am - 4:55 pmMDW-CWL
24h 06m2 stops
KLM Logo
5:30 pm - 6:00 pmCWL-MDW
30h 30m2 stops
$895KLM
Find Deal
Wed, Dec 3 - Sun, Dec 7
Virgin Atlantic Logo
10:49 am - 9:50 amMDW-CWL
41h 01m2 stops
Virgin Atlantic Logo
10:20 am - 6:18 pmCWL-MDW
37h 58m2 stops
$896Virgin Atlantic
Find Deal
Wed, Dec 3 - Sun, Dec 7

Delta flights from Illinois to Cardiff

Our best Delta deals on Illinois to Cardiff flight tickets
Delta
Dec 3
ORD4:25 pmChicago O'Hare Intl
11h 25m
1 stop
CWL9:50 amCardiff Wales
Dec 7
CWL10:20 amCardiff Wales
34h 00m
1 stop
ORD2:20 pmChicago O'Hare Intl
$828
Find similar
Delta
Dec 3
ORD4:25 pmChicago O'Hare Intl
18h 30m
1 stop
CWL4:55 pmCardiff Wales
Dec 7
CWL10:20 amCardiff Wales
34h 00m
1 stop
ORD2:20 pmChicago O'Hare Intl
$829
Find similar
Delta
Dec 3
ORD10:36 amChicago O'Hare Intl
24h 19m
2 stops
CWL4:55 pmCardiff Wales
Dec 7
CWL10:20 amCardiff Wales
34h 00m
1 stop
ORD2:20 pmChicago O'Hare Intl
$833
Find similar

KLM flights from Illinois to Cardiff

Our best KLM deals on Illinois to Cardiff flight tickets
KLM
Dec 3
MDW10:49 amChicago Midway
24h 06m
2 stops
CWL4:55 pmCardiff Wales
Dec 7
CWL5:30 pmCardiff Wales
30h 30m
2 stops
MDW6:00 pmChicago Midway
$895
Find similar
KLM
Nov 12
MDW1:15 pmChicago Midway
14h 35m
2 stops
CWL9:50 amCardiff Wales
Nov 14
CWL10:20 amCardiff Wales
19h 20m
2 stops
MDW11:40 pmChicago Midway
$2,099
Find similar

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 November 10, 2025.
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

Wed 12/3

4:25 pm-9:50 am

1 stop11h 25m

Cardiff Wales

Sun 12/7

10:20 am-2:20 pm

1 stop34h 00m

$828

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Wed 12/3

4:25 pm-4:55 pm

1 stop18h 30m

Cardiff Wales

Sun 12/7

10:20 am-2:20 pm

1 stop34h 00m

$829

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Wed 12/3

10:36 am-4:55 pm

2 stops24h 19m

Cardiff Wales

Sun 12/7

10:20 am-2:20 pm

1 stop34h 00m

$833

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Wed 12/3

10:45 am-9:50 am

2 stops17h 05m

Cardiff Wales

Sun 12/7

10:20 am-2:20 pm

1 stop34h 00m

$834

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Wed 12/3

10:45 am-9:50 am

2 stops17h 05m

Cardiff Wales

Sun 12/7

10:20 am-12:01 am

2 stops19h 41m

$843

ChicagoCardiff

MDW - CWL

MDWCWL

Chicago Midway

Wed 12/3

10:49 am-9:50 am

2 stops41h 01m

Cardiff Wales

Sun 12/7

10:20 am-11:47 pm

2 stops19h 27m

$844

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Wed 12/3

8:55 am-9:50 am

2 stops18h 55m

Cardiff Wales

Sun 12/7

10:20 am-12:01 am

2 stops19h 41m

$844

ChicagoCardiff

MDW - CWL

MDWCWL

Chicago Midway

Wed 12/3

10:49 am-4:55 pm

2 stops24h 06m

Cardiff Wales

Sun 12/7

5:30 pm-6:00 pm

2 stops30h 30m

$895

ChicagoCardiff

MDW - CWL

MDWCWL

Chicago Midway

Wed 12/3

10:49 am-9:50 am

2 stops41h 01m

Cardiff Wales

Sun 12/7

10:20 am-6:18 pm

2 stops37h 58m

$896

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Mon 11/17

6:30 pm-3:30 pm

3 stops39h 00m

$302

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 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

What is the cheapest day to depart on your flight to Cardiff?

The cheapest day to depart on your flight to Cardiff is on a Wednesday when prices can be found for as low as $873. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $1,500. These prices are subject to change though, so be sure to set up a Price Alert for flights to Cardiff.

What is the cheapest time of day to depart on your flight to Cardiff?

Flying to Cardiff from Illinois in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $1,011 when looking at flights departing in the afternoon. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $1,403 on average. Flights to Cardiff from Illinois at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

Cheap Illinois to Cardiff flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to Cardiff

Direct flights

None
There are no direct flights from Illinois to Cardiff. There are no popular flight routes from Illinois to Cardiff.
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  • 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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Wed 12/10
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