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Cheap flights from Illinois to Cardiff from £628

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 14/5. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — CWL
5 Apr — 12 Apr1
1 adult

Cheap flight deals from Illinois to Cardiff

Keep the following information in mind while searching for Illinois to Cardiff flight deals. Data was last updated 31 March 2025.

Round-trip from

£628

Popular in

July

Cheapest in

September

Average price

£1,272
Virgin Atlantic
  • Virgin Atlantic
  • 14/5-21/5
  • 2 total stops
  • 21h 15m total
  • Illinois to Cardiff
Search Deals
Highest demand for flights based on searches. 23% potential increase in price (£242 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 9% potential price decrease (£66 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2025
Search Deals

Find flight deals from Illinois to Cardiff

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 31 March 2025.

Wed 14/513:30ORD - CWL
2 stops13h 45mVirgin Atlantic
Wed 21/509:50CWL - ORD
1 stop10h 50mVirgin Atlantic
Deal found 30/3£628
Wed 14/513:08MDW - CWL
2 stops14h 07mMultiple Airlines
Wed 21/509:50CWL - MDW
2 stops13h 55mMultiple Airlines
Deal found 30/3£653
Wed 14/507:00ORD - CWL
2 stops20h 15mMultiple Airlines
Wed 21/509:50CWL - ORD
2 stops14h 47mMultiple Airlines
Deal found 30/3£653
Tue 13/513:30ORD - CWL
2 stops13h 45mKLM
Tue 20/517:15CWL - ORD
1 stop27h 25mKLM
Deal found 30/3£661
Tue 13/513:08MDW - CWL
2 stops14h 07mKLM
Tue 20/509:50CWL - MDW
2 stops17h 37mKLM
Deal found 30/3£666
Sun 14/916:20ORD - CWL
1 stop18h 25mDelta
Mon 22/909:50CWL - ORD
2 stops42h 12mDelta
Deal found 30/3£671
Wed 14/509:16MDW - CWL
2 stops17h 59mDelta
Wed 21/509:50CWL - MDW
2 stops14h 55mDelta
Deal found 30/3£674
Wed 14/510:25MDW - CWL
2 stops40h 50mVirgin Atlantic
Wed 21/517:15CWL - MDW
2 stops31h 30mVirgin Atlantic
Deal found 30/3£873
Wed 14/521:15ORD - CWL
3 stops29h 05mAer Lingus
Wed 21/512:00CWL - ORD
3 stops32h 00mAer Lingus
Deal found 30/3£1,234

Cheapflights 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, Cheapflights users made 858,174 searches. Data last updated 31 March 2025.
Use the filters below to find and compare flights from Illinois to Cardiff that are best for you.

Fly from

Illinois

Fly to

Cardiff

Route

Depart

Return

Price

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Wed 14/5

16:50-09:15

1 stop10h 25m

Cardiff Wales

Wed 21/5

09:50-14:40

1 stop10h 50m

£628

ChicagoCardiff

MDW - CWL

MDWCWL

Chicago Midway

Wed 14/5

13:08-09:15

2 stops14h 07m

Cardiff Wales

Wed 21/5

09:50-17:45

2 stops13h 55m

£653

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Wed 14/5

07:00-09:15

2 stops20h 15m

Cardiff Wales

Wed 21/5

09:50-18:37

2 stops14h 47m

£653

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Tue 13/5

13:30-09:15

2 stops13h 45m

Cardiff Wales

Tue 20/5

17:15-14:40

1 stop27h 25m

£661

ChicagoCardiff

MDW - CWL

MDWCWL

Chicago Midway

Tue 13/5

13:08-09:15

2 stops14h 07m

Cardiff Wales

Tue 20/5

09:50-21:27

2 stops17h 37m

£666

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Sun 14/9

16:20-16:45

1 stop18h 25m

Cardiff Wales

Mon 22/9

09:50-22:02

2 stops42h 12m

£671

ChicagoCardiff

MDW - CWL

MDWCWL

Chicago Midway

Wed 14/5

09:16-09:15

2 stops17h 59m

Cardiff Wales

Wed 21/5

09:50-18:45

2 stops14h 55m

£674

ChicagoCardiff

MDW - CWL

MDWCWL

Chicago Midway

Wed 14/5

10:25-09:15

2 stops40h 50m

Cardiff Wales

Wed 21/5

17:15-18:45

2 stops31h 30m

£873

ChicagoCardiff

ORD - CWL

ORDCWL

Chicago O'Hare Intl

Wed 14/5

21:15-08:20

3 stops29h 05m

Cardiff Wales

Wed 21/5

12:00-14:00

3 stops32h 00m

£1,234

Flights are sorted by cheapest return flights first.

Deals found on 30/3

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.
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

What is the cheapest month to book a flight from Illinois to Cardiff?

Currently, July is the cheapest month in which you can book a flight from Illinois to Cardiff (average of £169). Flying from Illinois to Cardiff in December is currently the most expensive (average of £263). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Rainfall in Cardiff by month

Plan your trip to Cardiff by taking into account the average rainfall totals by month.

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.

Temperature in Cardiff by month

Plan your trip to Cardiff by taking into account the average temperature totals by month.

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).

Reviews of airlines servicing Cardiff

Get insights into the airlines that provide service to Cardiff. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Cardiff. Reviews last updated 31 March 2025.
See what other customers who have flown with Delta, KLM and Virgin Atlantic from Illinois to Cardiff have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
7,899 reviews
Check prices

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

Comfort

8.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very Good
7,899 reviews
Delta
8.0
Very Good
7,899 reviews
Check prices

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

Comfort

8.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,321 reviews
Delta
8.0
Very Good
7,899 reviews
Check prices

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

Comfort

8.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Virgin Atlantic
7.4
Good
636 reviews
Delta
8.0
Very Good
7,899 reviews
Check prices

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

Comfort

8.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Aer Lingus
7.0
Good
1,061 reviews
Delta
8.0
Very Good
7,899 reviews
Check prices

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

Comfort

8.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Illinois to Cardiff. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • 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.

  • What is the cheapest month to book a flight from Illinois to Cardiff?

    Currently, July is the cheapest month in which you can book a flight from Illinois to Cardiff (average of £169). Flying from Illinois to Cardiff in December is currently the most expensive (average of £263). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Illinois?

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

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

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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.

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