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Cheap flights from Chicago O'Hare Intl Airport to Vienna from $409

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago O'Hare Intl Airport to Vienna departing on 4/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from Chicago O'Hare Intl Airport to Vienna

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
6:00 am - 9:15 am
ORD
-
GRZ
20h 15m
2 stops
Multiple Airlines Logo
6:15 am - 8:49 pm
GRZ
-
ORD
21h 34m
2 stops
$1,060Multiple Airlines
Wed, Sep 2 - Sun, Sep 13
Multiple Airlines Logo
6:00 am - 1:55 pm
ORD
-
GRZ
24h 55m
2 stops
Multiple Airlines Logo
6:00 am - 8:44 pm
GRZ
-
ORD
21h 44m
2 stops
$1,284Multiple Airlines
Mon, Jun 15 - Sat, Jun 20
Multiple Airlines Logo
4:05 pm - 5:15 pm
ORD
-
GRZ
18h 10m
2 stops
Multiple Airlines Logo
2:35 pm - 2:00 pm
GRZ
-
ORD
30h 25m
2 stops
$1,305Multiple Airlines
Wed, May 13 - Wed, May 20
Multiple Airlines Logo
11:05 am - 5:15 pm
ORD
-
GRZ
23h 10m
3 stops
Multiple Airlines Logo
2:35 pm - 7:15 pm
GRZ
-
ORD
35h 40m
2 stops
$1,311Multiple Airlines
Wed, May 13 - Wed, May 20
Multiple Airlines Logo
4:05 pm - 5:15 pm
ORD
-
GRZ
18h 10m
2 stops
Multiple Airlines Logo
2:35 pm - 7:15 pm
GRZ
-
ORD
35h 40m
2 stops
$1,315Multiple Airlines
Wed, May 13 - Wed, May 20
Multiple Airlines Logo
11:05 am - 5:15 pm
ORD
-
GRZ
23h 10m
3 stops
Multiple Airlines Logo
2:35 pm - 2:00 pm
GRZ
-
ORD
30h 25m
2 stops
$1,321Multiple Airlines
Wed, May 13 - Wed, May 20
Multiple Airlines Logo
11:05 am - 5:15 pm
ORD
-
GRZ
23h 10m
3 stops
Multiple Airlines Logo
7:50 pm - 7:50 pm
GRZ
-
ORD
31h 00m
2 stops
$1,341Multiple Airlines
Wed, Sep 2 - Sun, Sep 13
Lufthansa Logo
3:35 pm - 9:10 am
ORD
-
GRZ
10h 35m
1 stop
Lufthansa Logo
1:15 pm - 6:15 pm
GRZ
-
ORD
12h 00m
1 stop
$1,354Lufthansa
Wed, Sep 2 - Sun, Sep 13
Multiple Airlines Logo
8:45 am - 5:15 pm
ORD
-
GRZ
25h 30m
3 stops
Multiple Airlines Logo
1:15 pm - 3:10 pm
GRZ
-
ORD
32h 55m
3 stops
$1,357Multiple Airlines
Wed, May 13 - Wed, May 20
Lufthansa Logo
3:35 pm - 9:10 am
ORD
-
GRZ
10h 35m
1 stop
Lufthansa Logo
1:15 pm - 7:55 pm
GRZ
-
ORD
13h 40m
2 stops
$1,375Lufthansa
Wed, Sep 2 - Sun, Sep 13

Lufthansa flights from Chicago O'Hare Intl Airport to Graz

Our best Lufthansa deals on Chicago O'Hare Intl Airport to Graz flight tickets
Lufthansa
Sep 2
ORD3:35 pmChicago O'Hare Intl
10h 35m
1 stop
GRZ9:10 amGraz Thalerhof
Sep 13
GRZ1:15 pmGraz Thalerhof
12h 00m
1 stop
ORD6:15 pmChicago O'Hare Intl
$1,354
Lufthansa
Sep 2
ORD3:35 pmChicago O'Hare Intl
10h 35m
1 stop
GRZ9:10 amGraz Thalerhof
Sep 13
GRZ1:15 pmGraz Thalerhof
13h 40m
2 stops
ORD7:55 pmChicago O'Hare Intl
$1,375
Lufthansa
May 13
ORD9:40 pmChicago O'Hare Intl
11h 30m
1 stop
GRZ4:10 pmGraz Thalerhof
May 20
GRZ10:25 amGraz Thalerhof
16h 30m
1 stop
ORD7:55 pmChicago O'Hare Intl
$1,395

United Airlines flights from Chicago O'Hare Intl Airport to Graz

Our best United Airlines deals on Chicago O'Hare Intl Airport to Graz flight tickets
United Airlines
May 15
ORD3:35 pmChicago O'Hare Intl
14h 05m
1 stop
GRZ12:40 pmGraz Thalerhof
May 22
GRZ6:10 amGraz Thalerhof
15h 45m
1 stop
ORD2:55 pmChicago O'Hare Intl
$1,703
United Airlines
May 15
ORD3:35 pmChicago O'Hare Intl
14h 05m
1 stop
GRZ12:40 pmGraz Thalerhof
May 22
GRZ6:10 amGraz Thalerhof
20h 58m
2 stops
ORD8:08 pmChicago O'Hare Intl
$1,707
United Airlines
May 15
ORD1:06 pmChicago O'Hare Intl
16h 34m
2 stops
GRZ12:40 pmGraz Thalerhof
May 22
GRZ6:10 amGraz Thalerhof
15h 43m
2 stops
ORD2:53 pmChicago O'Hare Intl
$1,711

momondo Fare Finder

 
Customize your flight search to find flights from Chicago O'Hare Intl Airport 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, momondo users made 832,500 searches. Data last updated April 1, 2026.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Graz that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoGraz

ORD - GRZ

ORDGRZ

Chicago O'Hare Intl

Wed 9/2

6:00 am-9:15 am

2 stops20h 15m

Graz Thalerhof

Sun 9/13

6:15 am-8:49 pm

2 stops21h 34m

$1,060

ChicagoGraz

ORD - GRZ

ORDGRZ

Chicago O'Hare Intl

Mon 6/15

6:00 am-1:55 pm

2 stops24h 55m

Graz Thalerhof

Sat 6/20

6:00 am-8:44 pm

2 stops21h 44m

$1,284

ChicagoGraz

ORD - GRZ

ORDGRZ

Chicago O'Hare Intl

Wed 5/13

4:05 pm-5:15 pm

2 stops18h 10m

Graz Thalerhof

Wed 5/20

2:35 pm-2:00 pm

2 stops30h 25m

$1,305

ChicagoGraz

ORD - GRZ

ORDGRZ

Chicago O'Hare Intl

Wed 5/13

11:05 am-5:15 pm

3 stops23h 10m

Graz Thalerhof

Wed 5/20

2:35 pm-7:15 pm

2 stops35h 40m

$1,311

ChicagoGraz

ORD - GRZ

ORDGRZ

Chicago O'Hare Intl

Wed 5/13

4:05 pm-5:15 pm

2 stops18h 10m

Graz Thalerhof

Wed 5/20

2:35 pm-7:15 pm

2 stops35h 40m

$1,315

ChicagoGraz

ORD - GRZ

ORDGRZ

Chicago O'Hare Intl

Wed 5/13

11:05 am-5:15 pm

3 stops23h 10m

Graz Thalerhof

Wed 5/20

2:35 pm-2:00 pm

2 stops30h 25m

$1,321

ChicagoGraz

ORD - GRZ

ORDGRZ

Chicago O'Hare Intl

Wed 9/2

11:05 am-5:15 pm

3 stops23h 10m

Graz Thalerhof

Sun 9/13

7:50 pm-7:50 pm

2 stops31h 00m

$1,341
Quickest round-trip

ChicagoGraz

ORD - GRZ

ORDGRZ

Chicago O'Hare Intl

Wed 9/2

3:35 pm-9:10 am

1 stop10h 35m

Graz Thalerhof

Sun 9/13

1:15 pm-6:15 pm

1 stop12h 00m

$1,354

ChicagoGraz

ORD - GRZ

ORDGRZ

Chicago O'Hare Intl

Wed 5/13

8:45 am-5:15 pm

3 stops25h 30m

Graz Thalerhof

Wed 5/20

1:15 pm-3:10 pm

3 stops32h 55m

$1,357

ChicagoGraz

ORD - GRZ

ORDGRZ

Chicago O'Hare Intl

Wed 9/2

3:35 pm-9:10 am

1 stop10h 35m

Graz Thalerhof

Sun 9/13

1:15 pm-7:55 pm

2 stops13h 40m

$1,375

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 resultsSorted by cheapest first
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See travel insights to Vienna from

How to get the cheapest flight ticket from Chicago O'Hare Intl Airport to Graz

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Chicago O'Hare Intl to Graz Thalerhof?

Lufthansa is the most popular carrier operating from Chicago O'Hare Intl to Graz Thalerhof

What airlines fly to Graz?

Austrian Airlines, United Airlines and Turkish Airlines are the top three most popular airlines that fly to Graz from Chicago O'Hare Intl Airport according to our data. Austrian Airlines is the first choice among our users, with 43% of people opting to fly with this airline when traveling to Graz. Keep in mind that there are 10 different airlines that fly to Graz on a routine basis, so you have a few additional options to choose from.

When to book flights from Chicago O'Hare Intl Airport to Graz

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago O'Hare Intl Airport to Graz according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Chicago O'Hare Intl Airport to Graz (ORD to GRZ) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago O'Hare Intl Airport to Graz

Fastest flight time

18h 10m

Direct flights

None
The fastest flight from Chicago O'Hare Intl Airport to Graz takes 18h 10m
There are no direct flights from Chicago O'Hare Intl Airport to Graz. There are no popular flight routes from Chicago O'Hare Intl Airport to Graz.
Search flight deals

Frequently asked questions about flying from Chicago O'Hare Intl Airport to Graz

  • How far is Chicago O'Hare Intl to Graz Thalerhof by plane?

    A flight from Chicago O'Hare Intl to Graz Thalerhof will travel around 4703.0 mi. By plane, this route typically takes 18h 10m.

  • When did momondo last update prices for flights from Chicago O'Hare Intl Airport to Graz Thalerhof Airport?

    Prices for flights from Chicago O'Hare Intl Airport to Graz Thalerhof Airport were last updated today.

  • How old do you have to be to fly from Chicago O'Hare Intl Airport to Graz Thalerhof Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Chicago O'Hare Intl Airport to Graz Thalerhof Airport.

  • What documentation or ID do you need to fly to Graz Thalerhof Airport?

    The necessary travel and health documents for your Graz Thalerhof Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Chicago to Graz?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Chicago to Graz. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Chicago to Graz with flexible booking policies on momondo?

Yes. All flights to Graz from Chicago on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Chicago to Graz?

momondo provides multiple filters to help you find the best flight to Graz from Chicago. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Chicago to Graz right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Chicago to Graz flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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