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$1,187+ Cheap flights from Cardiff (CWL) to Illinois

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/6. Fares are subject to change and may not be available on all flights or dates of travel.
CWL — ORD
feb. 25 — mar. 41
mar. 2/25
mar. 3/4
1 adult, Economy
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Cheap flight deals from Cardiff to Illinois

Keep the following information in mind while searching for Cardiff to Illinois flight deals. Data was last updated febrero 20, 2025.

Popular in

August

Cheapest in

October

Average price

$816
Highest demand for flights based on searches. 15% potential increase in price ($165 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($49 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Find flight deals from Cardiff to Illinois

Cheapest flights from Cardiff to Illinois
Explore the most affordable flight options available from Cardiff to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on febrero 20, 2025.

This ChecknFly deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure ChecknFly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/69:50 amCWL - ORD
1 stop10h 50mMultiple Airlines
lun. 10/131:35 pmORD - CWL
2 stops21h 10mMultiple Airlines
Deal found 2/20$1,187
This Netflights deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Netflights is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/69:50 amCWL - MDW
2 stops14h 13mKLM
lun. 10/135:59 pmMDW - CWL
2 stops16h 46mKLM
Deal found 2/20$1,270
This KLM deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/69:50 amCWL - ORD
1 stop10h 50mKLM
lun. 10/134:50 pmORD - CWL
1 stop17h 55mKLM
Deal found 2/20$1,386

Best time to book a flight from Cardiff to Illinois

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

Travel insights for flights from Cardiff to Illinois

Get recent, data-driven insights about flights from Cardiff to Illinois including ideal travel times, pricing trends, and more.

Rainfall in Illinois by month

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

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

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

If weather is an important factor for your trip to Illinois, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

Related info for your journey

Find useful and relevant information for your journey from Cardiff to Illinois. 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 from for flights from Cardiff to Illinois?

    Cardiff Wales (CWL) is the airport you will fly out of if you book a flight from Cardiff to Illinois. It is only a 9.1 mi journey to Cardiff Wales (CWL) from Cardiff’s city center.

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

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

  • How can I find direct flights from Cardiff to Illinois?

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

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

    Yes. Cheapflights offers flight deals from Cardiff to Illinois 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 Cardiff to Illinois?

    Currently, August is the cheapest month in which you can book a flight from Cardiff to Illinois (average of $245). Flying from Cardiff to Illinois in March is currently the most expensive (average of $321). 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.

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Alternative routes for Cardiff to Illinois

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