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$1,392+ Cheap flights from Illinois to Graz (GRZ)

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 12/5. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — GRZ
Dec 6 — Dec 131
Sat 12/6
Sat 12/13
1 adult, Economy
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Cheap flight deals from Illinois to Graz

Keep the following information in mind while searching for Illinois to Graz flight deals. Data was last updated November 6, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$1,392
(Air Canada)

Popular in

May

Cheapest in

August

Average price

$769
Provider with most accurate pricing for Chicago (CHI)-Vienna Intl flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Vienna Intl flights.
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From Illinois to Graz Thalerhof
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Highest demand for flights based on searches. 16% potential increase in price ($186 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($24 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Find flight deals from Illinois to Graz

Cheapest flights from Illinois to Graz
Explore the most affordable flight options available from Illinois to Graz. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 6, 2025.

This Air Canada deal was found by Cheapflights users on 11/5. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/53:55 pmORD - GRZ
2 stops16h 45mAir Canada
Tue 12/99:50 amGRZ - ORD
2 stops14h 58mAir Canada
Deal found 11/5$1,392
This Lufthansa deal was found by Cheapflights users on 11/4. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/59:50 pmORD - GRZ
1 stop10h 50mLufthansa
Tue 12/96:05 amGRZ - ORD
1 stop14h 05mLufthansa
Deal found 11/4$1,477
This United Airlines deal was found by Cheapflights users on 11/5. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/52:24 pmORD - GRZ
2 stops16h 11mUnited Airlines
Tue 12/96:05 amGRZ - ORD
1 stop12h 05mUnited Airlines
Deal found 11/5$1,494

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Graz 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 2,558,603 searches. Data last updated November 6, 2025.
Use the filters below to find and compare flights from Illinois to Graz that are best for you.

Fly from

Illinois

Fly to

Graz

Route

Depart

Return

Price

ChicagoGraz

ORD - GRZ

ORDGRZ

Chicago O'Hare Intl

Fri 12/5

3:55 pm-3:40 pm

2 stops16h 45m

Graz Thalerhof

Tue 12/9

9:50 am-6:52 pm

2 stops16h 02m

$1,392

ChicagoGraz

ORD - GRZ

ORDGRZ

Chicago O'Hare Intl

Fri 12/5

9:50 pm-3:40 pm

1 stop10h 50m

Graz Thalerhof

Tue 12/9

6:05 am-1:10 pm

1 stop14h 05m

$1,477

ChicagoGraz

ORD - GRZ

ORDGRZ

Chicago O'Hare Intl

Fri 12/5

2:24 pm-1:35 pm

2 stops16h 11m

Graz Thalerhof

Tue 12/9

6:05 am-11:10 am

1 stop12h 05m

$1,494

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/4

Best time to book a flight from Illinois to Graz

Have a flexible travel schedule? Discover the best time to fly to Graz from Illinois 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.

Cheapflights Insights

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

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

Currently, January is the cheapest month in which you can book a flight from Illinois to Graz (average of $445). Flying from Illinois to Graz in June is currently the most expensive (average of $882). 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.

Related info for your journey

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

    If you book a flight to Graz from Illinois, you will be flying to Thalerhof, which is the city’s only airport. Graz Thalerhof (GRZ) is located 5.2 mi from the center of Graz.

  • How long is the flight from Illinois to Graz?

    Air Canada, Lufthansa, and United Airlines can get you from Illinois to Graz in just under 10h 50m. Your travel time can differ by up to 5h 55m. The distance between Illinois and Graz is about 4706 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Illinois to Graz (average of $445). Flying from Illinois to Graz in June is currently the most expensive (average of $882). 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

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