What are the cheapest airlines to fly from Illinois to Graz one-way?

$477 is the cheapest one-way deal found within the past few days, from Austrian Airlines. You may also be able to find cheap deals on Air Canada and SWISS, with prices starting from $479 and $480, respectively.

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Graz as you normally would.

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.

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.

$372+ Flights from Illinois to Graz

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Cheap flight deals from Illinois to Graz

Round-trip from	$640 (Lufthansa)
One-way from	$372 (Kiwi.com)

From Illinois to Graz Thalerhof

Search Deals

One-way flight from Illinois to Graz Thalerhof

Search Deals

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 June 12, 2025.

Sat 9/209:12 pmORD - GRZ

2 stops30h 38mMultiple Airlines

Sun 9/284:35 pmGRZ - ORD

1 stop27h 45mMultiple Airlines

Deal found 6/11

$783

Sat 9/204:20 pmORD - GRZ

1 stop11h 30mAustrian Airlines

Sun 9/284:35 pmGRZ - ORD

1 stop27h 45mAustrian Airlines

Deal found 6/11

$836

Sat 9/2010:30 pmORD - GRZ

2 stops17h 50mLufthansa

Sun 9/284:55 pmGRZ - ORD

2 stops27h 00mLufthansa

Deal found 6/11

$906

Fri 7/259:55 amORD - GRZ

2 stops19h 40mAir Canada

Fri 8/19:55 amGRZ - ORD

2 stops29h 04mAir Canada

Deal found 6/10

$1,345

Wed 6/257:05 pmORD - GRZ

1 stop16h 55mSWISS

Mon 6/3010:55 amGRZ - ORD

1 stop32h 15mSWISS

Deal found 6/11

$2,094

Best flights from Illinois to Graz
Discover carefully curated flight deals from Illinois to Graz that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 12, 2025.

Mon 11/109:50 pmORD - GRZ

1 stop17h 50mLufthansa

Tue 12/96:00 amGRZ - ORD

1 stop21h 05mLufthansa

Deal found 6/12

$640

Sun 11/97:20 amORD - GRZ

2 stops23h 05mAir Canada

Wed 12/36:10 amGRZ - ORD

2 stops32h 55mAir Canada

Deal found 6/12

$644

Wed 11/127:05 pmORD - GRZ

1 stop16h 00mMultiple Airlines

Sat 12/66:00 amGRZ - ORD

2 stops15h 45mMultiple Airlines

Deal found 6/12

$688

Sat 9/204:20 pmORD - GRZ

1 stop11h 30mAustrian Airlines

Sun 9/284:35 pmGRZ - ORD

1 stop27h 45mAustrian Airlines

Deal found 6/11

$836

Wed 6/257:05 pmORD - GRZ

1 stop16h 55mSWISS

Mon 6/3010:55 amGRZ - ORD

1 stop32h 15mSWISS

Deal found 6/11

$2,094

Last-minute flights from Illinois to Graz
Discover last-minute flight deals from Illinois to Graz. Data last updated June 12, 2025 and is based on user searches.

Tue 6/174:20 pmORD - GRZ

1 stop16h 35mAustrian Airlines

Wed 6/186:45 pmGRZ - ORD

1 stop25h 05mAustrian Airlines

Deal found 6/11

$5,867

Wed 6/257:05 pmORD - GRZ

1 stop16h 55mSWISS

Mon 6/3010:55 amGRZ - ORD

1 stop32h 15mSWISS

Deal found 6/11

$2,094

Thu 7/2410:30 pmORD - GRZ

1 stop12h 50mMultiple Airlines

Thu 7/317:45 pmGRZ - ORD

1 stop27h 10mMultiple Airlines

Deal found 6/10

$1,001

Fri 7/254:20 pmORD - GRZ

1 stop14h 35mAustrian Airlines

Fri 8/16:00 amGRZ - ORD

1 stop14h 20mAustrian Airlines

Deal found 6/10

$1,047

Fri 7/259:55 amORD - GRZ

2 stops19h 40mAir Canada

Fri 8/19:55 amGRZ - ORD

2 stops29h 04mAir Canada

Deal found 6/10

$1,345

Sat 7/263:35 pmORD - GRZ

1 stop14h 00mLufthansa

Sat 8/24:55 pmGRZ - ORD

1 stop26h 35mLufthansa

Deal found 6/11

$999

One-way flights from Illinois to Graz
Search for one-way flight options from Illinois to Graz. Find affordable one-way fares based on user searches. Data last updated June 12, 2025.

Sun 9/78:12 pmORD - GRZ

3 stops36h 43mMultiple Airlines

Deal found 6/12

$372

Sun 7/274:20 pmORD - GRZ

1 stop24h 00mAustrian Airlines

Deal found 6/12

$477

Sat 7/268:25 pmORD - GRZ

2 stops33h 10mAir Canada

Deal found 6/11

$479

Sun 9/77:05 pmORD - GRZ

1 stop31h 50mSWISS

Deal found 6/12

$480

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

ChicagoGraz

ORD - GRZ

ORDGRZ

Chicago O'Hare Intl

Mon 11/10

9:50 pm-10:40 pm

1 stop17h 50m

Graz Thalerhof

Fri 12/5

10:10 am-8:05 pm

1 stop16h 55m

$640

ChicagoGraz

ORD - GRZ

ORDGRZ

Chicago O'Hare Intl

Sun 11/9

7:20 am-1:25 pm

2 stops23h 05m

Graz Thalerhof

Wed 12/3

6:10 am-8:05 am

2 stops32h 55m

$644

ChicagoGraz

ORD - GRZ

ORDGRZ

Chicago O'Hare Intl

Wed 11/12

7:05 pm-6:05 pm

1 stop16h 00m

Graz Thalerhof

Sat 12/6

6:00 am-2:45 pm

2 stops15h 45m

$688

ChicagoGraz

ORD - GRZ

ORDGRZ

Chicago O'Hare Intl

Sat 9/20

4:20 pm-10:50 am

1 stop11h 30m

Graz Thalerhof

Sun 9/28

4:35 pm-1:20 pm

1 stop27h 45m

$836

ChicagoGraz

ORD - GRZ

ORDGRZ

Chicago O'Hare Intl

Wed 6/25

7:05 pm-7:00 pm

1 stop16h 55m

Graz Thalerhof

Mon 6/30

10:55 am-12:10 pm

1 stop32h 15m

$2,094

ChicagoGraz

ORD - GRZ

ORDGRZ

Chicago O'Hare Intl

Sun 9/7

8:12 pm-3:55 pm

3 stops36h 43m

$372

ChicagoGraz

ORD - GRZ

ORDGRZ

Chicago O'Hare Intl

Sun 7/27

4:20 pm-11:20 pm

1 stop24h 00m

$477

ChicagoGraz

ORD - GRZ

ORDGRZ

Chicago O'Hare Intl

Sat 7/26

8:25 pm-12:35 pm

2 stops33h 10m

$479

ChicagoGraz

ORD - GRZ

ORDGRZ

Chicago O'Hare Intl

Sun 9/7

7:05 pm-9:55 am

1 stop31h 50m

$480

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

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

Rainfall in Graz by month

In terms of precipitation, rainfall in Graz ranges from 1.2 - 5.1 inches per month. July is typically the wettest month, when rainfall can reach 5.1 in. January is typically the driest time to visit Graz when rainfall is around 1.2 in.

Temperature in Graz by month

If weather is an important factor for your trip to Graz, 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 66.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 28.4 F).

Reviews of airlines servicing Graz

Austrian Airlines

7.6

Good

802 reviews

Reviews

1 / 20

10.0

Excellent

Shuguang,May 2025

VIE - BOS

I will fly again and highly recommend Austrian Airlines to my family, friends and colleagues!

Austrian Airlines

7.6

Good

802 reviews

Austrian Airlines

7.6

Good

802 reviews

Reviews

1 / 20

10.0

Excellent

Shuguang,May 2025

VIE - BOS

I will fly again and highly recommend Austrian Airlines to my family, friends and colleagues!

SWISS

7.5

Good

1,623 reviews

Austrian Airlines

7.6

Good

802 reviews

Reviews

1 / 20

10.0

Excellent

Shuguang,May 2025

VIE - BOS

I will fly again and highly recommend Austrian Airlines to my family, friends and colleagues!

Air Canada

7.1

Good

9,531 reviews

Austrian Airlines

7.6

Good

802 reviews

Reviews

1 / 20

10.0

Excellent

Shuguang,May 2025

VIE - BOS

I will fly again and highly recommend Austrian Airlines to my family, friends and colleagues!

Lufthansa

6.8

Okay

7,136 reviews

Austrian Airlines

7.6

Good

802 reviews

Reviews

1 / 20

10.0

Excellent

Shuguang,May 2025

VIE - BOS

I will fly again and highly recommend Austrian Airlines to my family, friends and colleagues!

Related info for your journey

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.
What are the cheapest airlines to fly from Illinois to Graz one-way?
$477 is the cheapest one-way deal found within the past few days, from Austrian Airlines. You may also be able to find cheap deals on Air Canada and SWISS, with prices starting from $479 and $480, respectively.
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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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$372+ Cheap flights from Illinois to Graz (GRZ)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/7. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Illinois to Graz with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

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 June 12, 2025.

Round-trip from

One-way from

Find flight deals from Illinois to Graz

Cheapest flights from Illinois to GrazExplore 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 June 12, 2025.

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 June 12, 2025.

Cheapflights Fare Finder

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

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.

Cheapflights Insights

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

Rainfall in Graz by month

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

Temperature in Graz by month

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

Reviews of airlines servicing Graz

Get insights into the airlines that provide service to Graz. 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 Graz. Reviews last updated June 12, 2025.

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?

What are the cheapest airlines to fly from Illinois to Graz one-way?

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

How can I find direct flights from Illinois to Graz?

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

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 Graz

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

100% Free

Book with Flexibility

Travel Smart

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 June 12, 2025.