How long is the flight from Illinois to Cardiff?

Airlines like KLM and Delta fly from Illinois to Cardiff in about 13h 40m. The time it takes to get you to your destination can typically vary by up to 1h 08m. Airlines will cover a distance of 3831 mi. Both multi-stop and direct flights can be found to your destination and back.

In terms of precipitation, rainfall in Cardiff ranges from 50.0 - 90.0 inches per month. January is typically the wettest month, when rainfall can reach 90.0 mm. April is typically the driest time to visit Cardiff when rainfall is around 50.0 mm.

If weather is an important factor for your trip to Cardiff, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 18.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 4.0 C).

What is the cheapest time of day to fly from IL to CWL?

When flying from Illinois to Cardiff, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What airport do you fly into for flights to Cardiff from Illinois?

Cardiff Wales (CWL), located 9.1 mi from the city center, is the airport you fly into when you book flights from Illinois to Cardiff.

Can I find deals for flights from Illinois to Cardiff that include hotel bookings?

Yes. In addition to deals on Illinois to Cardiff flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Illinois to Cardiff?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Cardiff.

Can I find deals for business class flights from Illinois to Cardiff?

Yes. Cheapflights offers flight deals from Illinois to Cardiff by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£250+ Cheap Flights from Illinois to Cardiff

Cheap flight deals from Illinois to Cardiff

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

Cheapest flights from Illinois to Cardiff
Explore the most affordable flight options available from Illinois to Cardiff. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 September 2026.

Mon 26/1019:30 -

2 stops21h 20m

Mon 2/1108:35 -

1 stop15h 45m

Deal found 10/9£664

Mon 26/1015:05 -

2 stops13h 40m

Mon 2/1117:30 -

2 stops29h 50m

Deal found 10/9£689

Fri 23/1017:30 -

2 stops48h 55m

Fri 30/1023:10 -

1 stop21h 00m

Deal found 7/9£719

Mon 5/1015:45 -

1 stop25h 05m

Mon 12/1022:10 -

2 stops47h 50m

Deal found 7/9£732

Tue 6/1015:45 -

1 stop25h 40m

Tue 13/1021:45 -

2 stops44h 55m

Deal found 8/9£748

Thu 15/1016:15 -

1 stop18h 30m

Sun 25/1010:20 -

1 stop34h 05m

Deal found 10/9£753

Wed 30/1216:25 -

1 stop18h 35m

Sat 9/117:30 -

1 stop26h 55m

Deal found 8/9£780

Thu 15/1011:05 -

3 stops29h 15m

Sun 25/1023:50 -

1 stop20h 20m

Deal found 10/9£785

Tue 6/1012:27 -

2 stops14h 48m

Tue 13/1009:45 -

2 stops18h 48m

Deal found 8/9£808

Wed 30/1212:55 -

2 stops14h 55m

Sat 9/117:30 -

2 stops28h 55m

Deal found 8/9£1,221

Find flight deals from Illinois to Cardiff

Round-trip from	£664
One-way from	£250

26/10-2/11
3 total stops
37h 05m total
Illinois to Cardiff

Search Deals

28/9-31/12
3 total stops
21h 25m total
Illinois to Cardiff

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

ChicagoCardiff

ORD Chicago O'Hare Intl - CWL Cardiff Wales

ORDCWL

Chicago O'Hare Intl

Mon 28/9

19:25-22:50

3 stops21h 25m

Cardiff Wales

Wed 31/12

00:00-17:00

Nonstop0h 00m

£250

Fastest return journey

ChicagoCardiff

ORD Chicago O'Hare Intl - CWL Cardiff Wales

ORDCWL

Chicago O'Hare Intl

Mon 21/9

16:50-09:15

1 stop10h 25m

Cardiff Wales

Wed 31/12

00:00-17:00

Nonstop0h 00m

£522

ChicagoCardiff

MDW Chicago Midway - CWL Cardiff Wales

MDWCWL

Chicago Midway

Mon 21/9

13:19-09:15

2 stops13h 56m

Cardiff Wales

Wed 31/12

00:00-17:00

Nonstop0h 00m

£525

ChicagoCardiff

ORD Chicago O'Hare Intl - CWL Cardiff Wales

ORDCWL

Chicago O'Hare Intl

Mon 26/10

19:30-21:50

2 stops21h 20m

Cardiff Wales

Mon 2/11

08:35-18:20

1 stop15h 45m

£664

ChicagoCardiff

ORD Chicago O'Hare Intl - CWL Cardiff Wales

ORDCWL

Chicago O'Hare Intl

Mon 26/10

15:05-09:45

2 stops13h 40m

Cardiff Wales

Mon 2/11

17:30-17:20

2 stops29h 50m

£689

ChicagoCardiff

ORD Chicago O'Hare Intl - CWL Cardiff Wales

ORDCWL

Chicago O'Hare Intl

Fri 23/10

17:30-00:25

2 stops48h 55m

Cardiff Wales

Fri 30/10

23:10-15:10

1 stop21h 00m

£719

ChicagoCardiff

ORD Chicago O'Hare Intl - CWL Cardiff Wales

ORDCWL

Chicago O'Hare Intl

Mon 5/10

15:45-22:50

1 stop25h 05m

Cardiff Wales

Mon 12/10

22:10-16:00

2 stops47h 50m

£732

ChicagoCardiff

ORD Chicago O'Hare Intl - CWL Cardiff Wales

ORDCWL

Chicago O'Hare Intl

Tue 6/10

15:45-23:25

1 stop25h 40m

Cardiff Wales

Tue 13/10

21:45-12:40

2 stops44h 55m

£748

ChicagoCardiff

ORD Chicago O'Hare Intl - CWL Cardiff Wales

ORDCWL

Chicago O'Hare Intl

Thu 15/10

16:15-16:45

1 stop18h 30m

Cardiff Wales

Sun 25/10

10:20-15:25

1 stop34h 05m

£753

ChicagoCardiff

ORD Chicago O'Hare Intl - CWL Cardiff Wales

ORDCWL

Chicago O'Hare Intl

Wed 30/12

16:25-17:00

1 stop18h 35m

Cardiff Wales

Sat 9/1

17:30-14:25

1 stop26h 55m

£780

Flights are sorted by cheapest return flights first.

Deals found on 10/9

Showing 1-10 of 13 resultsSorted by cheapest first

Best time to book a flight from Illinois to Cardiff

Have a flexible travel schedule? Discover the best time to fly to Cardiff from Illinois with our price prediction graph.

ORD-CWL

MDW-CWL

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Illinois to Cardiff

USIL-CWL

ORD-CWL

MDW-CWL

No data available for this route at this time. Please check back soon.

Related info for your journey

What airport do you fly into for flights to Cardiff from Illinois?
Cardiff Wales (CWL), located 9.1 mi from the city center, is the airport you fly into when you book flights from Illinois to Cardiff.
How long is the flight from Illinois to Cardiff?
Airlines like KLM and Delta fly from Illinois to Cardiff in about 13h 40m. The time it takes to get you to your destination can typically vary by up to 1h 08m. Airlines will cover a distance of 3831 mi. Both multi-stop and direct flights can be found to your destination and back.
Can I find deals for flights from Illinois to Cardiff that include hotel bookings?
Yes. In addition to deals on Illinois to Cardiff flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Illinois to Cardiff?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Cardiff.
Can I find deals for business class flights from Illinois to Cardiff?
Yes. Cheapflights offers flight deals from Illinois to Cardiff by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Bridgend

Barry

Browse thousands of different options on Cheapflights for your next trip

Alternative routes

Cardiff flight routes

Complete your trip

Direct flights to Wales

Flights by cabin class

Other flight options

Popular flights

Top destinations

Alternative routes for Illinois to Cardiff

John F Kennedy Intl to Manchester flights

Newark to Manchester flights

Orlando to Manchester flights

LaGuardia to Manchester flights

Boston to Manchester flights

Atlanta to Manchester flights

Los Angeles to Manchester flights

Dulles Intl to Manchester flights

Dallas/Fort Worth to Manchester flights

O'Hare Intl to Manchester flights

Sky Harbor Intl to Manchester flights

Ontario to Manchester flights

Baltimore to Manchester flights

Reagan-National to Manchester flights

Seattle to Manchester flights

Tampa to Manchester flights

Midway to Manchester flights

San Francisco to Manchester flights

Hobby to Manchester flights

Cincinnati to Manchester flights

Denver to Manchester flights

Philadelphia to Manchester flights

Detroit to Manchester flights

Austin to Manchester flights

San Diego to Manchester flights

Syracuse to Manchester flights

Miami to Manchester flights

Minneapolis to Manchester flights

George Bush Intcntl to Manchester flights

Indianapolis to Manchester flights

Las Vegas to Manchester flights

Raleigh to Manchester flights

Nashville to Manchester flights

Portland to Manchester flights

Pittsburgh to Manchester flights

St. Louis to Manchester flights

Hartford to Manchester flights

Salt Lake City to Manchester flights

Newark to Bristol flights

Cleveland to Manchester flights

John F Kennedy Intl to Bristol flights

Charlotte to Manchester flights

San Jose to Manchester flights

John F Kennedy Intl to Cardiff flights

Des Moines to Manchester flights

Kansas City to Manchester flights

Providence to Manchester flights

Santa Ana to Manchester flights

Little Rock to Manchester flights

Fly with Cheapflights

How does Cheapflights help users find flights from Illinois to Cardiff?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Illinois to Cardiff. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Illinois to Cardiff?

Cheapflights helps you find that perfect flight to Cardiff from Illinois by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Illinois to Cardiff with no change fees?

Need flexible booking options for your flight to Cardiff from Illinois? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Illinois to Cardiff become cheaper?

Not ready to book yet? You can track prices for flights from Illinois to Cardiff on Cheapflights with our Price Alert feature and get notified when better prices are available.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from Illinois to Cardiff from £250

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 28/9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Illinois to Cardiff

Cheapest flights from Illinois to CardiffExplore the most affordable flight options available from Illinois to Cardiff. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 September 2026.

Explore the most affordable flight options available from Illinois to Cardiff. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 September 2026.

Best flights from Illinois to CardiffDiscover carefully curated flight deals from Illinois to Cardiff that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 11 September 2026.

Discover carefully curated flight deals from Illinois to Cardiff that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 11 September 2026.

Last-minute flights from Illinois to CardiffDiscover last-minute flight deals from Illinois to Cardiff. Data last updated 11 September 2026 and is based on user searches.

Discover last-minute flight deals from Illinois to Cardiff. Data last updated 11 September 2026 and is based on user searches.

One-way flights from Illinois to CardiffSearch for one-way flight options from Illinois to Cardiff. Find affordable one-way fares based on user searches. Data last updated 11 September 2026.

Search for one-way flight options from Illinois to Cardiff. Find affordable one-way fares based on user searches. Data last updated 11 September 2026.

Find flight deals from Illinois to Cardiff

Round-trip from

One-way from

Cheapflights Fare Finder

Use the filters below to find and compare flights from Illinois to Cardiff that are best for you.

Best time to book a flight from Illinois to Cardiff

Have a flexible travel schedule? Discover the best time to fly to Cardiff from Illinois with our price prediction graph.

Cheapflights Insights

Related info for your journey

What airport do you fly into for flights to Cardiff from Illinois?

How long is the flight from Illinois to Cardiff?

Can I find deals for flights from Illinois to Cardiff that include hotel bookings?

How can I find direct flights from Illinois to Cardiff?

Can I find deals for business class flights from Illinois to Cardiff?

Travelling to a place near Cardiff?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Illinois to Cardiff

See prices for flight routes from nearby airports that may be better suited for you.

Other flights to Cardiff

Explore flights to Cardiff departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 11 September 2026.

Complete your trip

Complete your trip to Cardiff by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to Wales

Book a non-stop flight to one of these other cities located in Wales.

Search flights from Illinois to Cardiff by cabin class

Find flights from Illinois to Cardiff, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Illinois and Cardiff flights

Browse other Illinois and Cardiff flight options. Last updated on 11 September 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Illinois to Cardiff flights

Consider these flights travelling from Illinois to Cardiff.

Fly with Cheapflights

How does Cheapflights help users find flights from Illinois to Cardiff?

Why should you use Cheapflights to find cheap flight tickets from Illinois to Cardiff?

Can Cheapflights find flights from Illinois to Cardiff with no change fees?

Can Cheapflights notify me if prices for flights from Illinois to Cardiff become cheaper?

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Illinois to Cardiff
Explore the most affordable flight options available from Illinois to Cardiff. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 September 2026.

Best flights from Illinois to Cardiff
Discover carefully curated flight deals from Illinois to Cardiff that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 11 September 2026.

Last-minute flights from Illinois to Cardiff
Discover last-minute flight deals from Illinois to Cardiff. Data last updated 11 September 2026 and is based on user searches.

One-way flights from Illinois to Cardiff
Search for one-way flight options from Illinois to Cardiff. Find affordable one-way fares based on user searches. Data last updated 11 September 2026.