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O'Hare Intl

$664+ Cheap flights from Sydney (SYD) to O'Hare Intl (ORD)

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 8/12. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — ORD
Jul 25 — Aug 11
Sat 7/25
Sat 8/1
1 adult, Economy
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Cheap flight deals from Sydney to O'Hare Intl

Cheapest flights from Sydney to O'Hare Intl
Explore the most affordable flight options available from Sydney to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 25, 2026.

This Trip.com deal was found by Cheapflights users on 6/23. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/126:05 am
SYD
-
ORD
2 stops39h 12m
Multiple Airlines
Wed 8/199:20 am
ORD
-
SYD
3 stops35h 30m
Multiple Airlines
Deal found 6/23$922
This Trip.com deal was found by Cheapflights users on 6/20. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/31:15 pm
SYD
-
ORD
2 stops32h 02m
Multiple Airlines
Mon 8/177:15 am
ORD
-
SYD
3 stops37h 35m
Multiple Airlines
Deal found 6/20$987
This Trip.com deal was found by Cheapflights users on 6/20. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/271:15 pm
SYD
-
ORD
2 stops32h 02m
Multiple Airlines
Mon 8/1010:16 am
ORD
-
SYD
3 stops34h 34m
Multiple Airlines
Deal found 6/20$1,007
This Trip.com deal was found by Cheapflights users on 6/22. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/31:15 pm
SYD
-
ORD
2 stops32h 02m
Multiple Airlines
Sun 9/201:02 pm
ORD
-
SYD
3 stops31h 48m
Multiple Airlines
Deal found 6/22$1,029
This Trip.com deal was found by Cheapflights users on 6/23. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/71:15 pm
SYD
-
ORD
2 stops32h 02m
Multiple Airlines
Fri 8/1410:16 am
ORD
-
SYD
3 stops34h 34m
Multiple Airlines
Deal found 6/23$1,038
This BusinessClass deal was found by Cheapflights users on 6/22. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/55:50 pm
SYD
-
ORD
1 stop36h 04m
Qantas Airways
Sun 9/65:05 pm
ORD
-
SYD
1 stop22h 20m
Qantas Airways
Deal found 6/22$1,046
This BYOjet deal was found by Cheapflights users on 6/22. 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 BYOjet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/119:55 am
SYD
-
ORD
2 stops28h 39m
Air New Zealand
Mon 11/161:00 pm
ORD
-
SYD
2 stops28h 30m
Air New Zealand
Deal found 6/22$1,092
This Trip.com deal was found by Cheapflights users on 6/24. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/69:10 am
SYD
-
ORD
1 stop36h 07m
Multiple Airlines
Tue 8/116:19 am
ORD
-
SYD
2 stops33h 46m
Multiple Airlines
Deal found 6/24$1,102
This flugladen.de deal was found by Cheapflights users on 6/21. 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 flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/209:10 am
SYD
-
ORD
1 stop36h 07m
Multiple Airlines
Tue 8/49:28 am
ORD
-
SYD
2 stops31h 02m
Multiple Airlines
Deal found 6/21$1,137
This BYOjet deal was found by Cheapflights users on 6/24. 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 BYOjet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1111:45 am
SYD
-
ORD
2 stops26h 49m
Air New Zealand
Sun 11/151:00 pm
ORD
-
SYD
2 stops28h 30m
Air New Zealand
Deal found 6/24$1,148

Find flight deals from Sydney to O'Hare Intl

Discover tips and strategies to find the most affordable flight options for your journey from Sydney (SYD) to O'Hare Intl (ORD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 25, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$922
(Trip.com)

One-way from

$664
(Kiwi.com)

Popular in

January

Cheapest in

September

Average price

$1,237
Provider with most accurate pricing for Sydney Kingsford Smith-Chicago O'Hare Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Sydney Kingsford Smith-Chicago O'Hare Intl flights.
Search Deals
From Sydney Kingsford Smith to Chicago O'Hare Intl
Search Deals
One-way flight from Sydney Kingsford Smith to Chicago O'Hare Intl
Search Deals
Highest demand for flights based on searches. 28% potential increase in price ($522 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 12% potential price decrease ($148 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Sydney to O'Hare Intl 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 June 25, 2026.
Use the filters below to find and compare flights from Sydney to Chicago O'Hare Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Thu 9/3

9:15 am-1:41 pm

1 stop19h 26m

Chicago O'Hare Intl

Sun 9/20

7:07 am-6:50 am

1 stop32h 43m

$1,173

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Tue 9/29

9:15 am-6:01 pm

2 stops23h 46m

Chicago O'Hare Intl

Tue 10/13

11:30 am-7:50 am

2 stops28h 20m

$1,176

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Fri 10/16

10:15 am-8:24 pm

2 stops26h 09m

Chicago O'Hare Intl

Fri 10/30

6:30 pm-7:30 am

1 stop21h 00m

$1,261

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Sat 11/21

10:40 am-5:21 pm

1 stop23h 41m

Chicago O'Hare Intl

Thu 12/3

8:55 am-8:30 am

2 stops30h 35m

$1,274

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Wed 8/12

5:50 pm-6:17 am

1 stop27h 27m

Chicago O'Hare Intl

Fri 8/21

9:20 pm-11:50 am

2 stops47h 30m

$1,297

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Sat 11/21

9:40 pm-7:00 am

3 stops26h 20m

Chicago O'Hare Intl

Thu 12/3

5:55 pm-7:45 pm

2 stops32h 50m

$1,417
Quickest round-trip

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Mon 9/28

9:15 am-1:44 pm

1 stop19h 29m

Chicago O'Hare Intl

Mon 10/5

6:56 pm-7:50 am

1 stop20h 54m

$1,431

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Tue 9/29

9:15 am-8:30 pm

2 stops26h 15m

Chicago O'Hare Intl

Tue 10/6

3:50 pm-7:50 am

2 stops24h 00m

$1,431
Cheapest one-way

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Wed 8/12

7:15 pm-6:17 am

3 stops50h 02m

$664

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Thu 9/10

9:15 am-11:59 pm

2 stops29h 44m

$687

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/22

Showing 1-10 of 14 resultsSorted by cheapest first
1
2

Compare providers for flights from Sydney to O'Hare Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Sydney to O'Hare Intl in June.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Sydney-Chicago O'Hare Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Sydney-Chicago O'Hare Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Sydney-Chicago O'Hare Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Sydney-Chicago O'Hare Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Sydney-Chicago O'Hare Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Sydney to O'Hare Intl

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Sydney 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 Sydney to Chicago O'Hare Intl Airport

How far ahead should I book a flight from Sydney to Chicago O'Hare Intl Airport?

The best time to book flights from Sydney to Chicago O'Hare Intl Airport is 55 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Sydney to Chicago O'Hare Intl Airport?

Currently, September is the cheapest month in which you can book a flight from Sydney to Chicago O'Hare Intl Airport (average of $937). Flying from Sydney to Chicago O'Hare Intl Airport in January is currently the most expensive (average of $2,951). 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.

How much does it cost to fly round-trip from Sydney to Chicago O'Hare Intl Airport?

Reviews of airlines servicing O'Hare Intl

Get insights into the airlines that provide service to O'Hare Intl. 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 O'Hare Intl. Reviews last updated June 25, 2026.
See what other customers who have flown with Qantas Airways and United Airlines from Sydney to Chicago O'Hare Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Qantas Airways
7.5
Good
1,050 reviews

Overall

7.5

Food

7.0

Boarding

7.7

Crew

8.1

Entertainment

7.2

Comfort

7.5

Reviews

1 / 20
10.0
Excellent

Tania,May 2026

SYD - DFW

The trip was great and the flight attendants were lovely. It was my honeymoon and ai thought I lost my gold brecelet. They searched until they found it and gave us a bottle of champaign to celebrate our honeymoon. They were lovely!
Qantas Airways
7.5
Good
1,050 reviews
Qantas Airways
7.5
Good
1,050 reviews

Overall

7.5

Food

7.0

Boarding

7.7

Crew

8.1

Entertainment

7.2

Comfort

7.5

Reviews

1 / 20
10.0
Excellent

Tania,May 2026

SYD - DFW

The trip was great and the flight attendants were lovely. It was my honeymoon and ai thought I lost my gold brecelet. They searched until they found it and gave us a bottle of champaign to celebrate our honeymoon. They were lovely!
United Airlines
7.4
Good
9,885 reviews
Qantas Airways
7.5
Good
1,050 reviews

Overall

7.5

Food

7.0

Boarding

7.7

Crew

8.1

Entertainment

7.2

Comfort

7.5

Reviews

1 / 20
10.0
Excellent

Tania,May 2026

SYD - DFW

The trip was great and the flight attendants were lovely. It was my honeymoon and ai thought I lost my gold brecelet. They searched until they found it and gave us a bottle of champaign to celebrate our honeymoon. They were lovely!

Related info for your journey

Find useful and relevant information for your journey from Sydney to O'Hare Intl. 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 Sydney to Chicago O'Hare Intl?

    If you book a flight to Chicago O'Hare Intl from Sydney, you will be flying from Kingsford Smith, which is the city’s only airport. Sydney Kingsford Smith (SYD) is located 4.6 mi from the center of Sydney. There are 0 flights from Kingsford Smith to Chicago O'Hare Intl per day from 2 different airlines.

  • How long is the flight from Sydney to Chicago O'Hare Intl Airport?

    Departing from Sydney to Chicago O'Hare Intl Airport will take you 19h 26m. The distance from Sydney to Chicago O'Hare Intl Airport is about 9228 mi.

  • What are the cheapest airlines flying from Sydney to Chicago O'Hare Intl Airport round-trip?

    According to our current data, Qantas Airways ($970), and United Airlines ($1,113) offers the cheapest pricing from Sydney to Chicago O'Hare Intl Airport. These flights start at 27% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Sydney to Chicago O'Hare Intl Airport one-way?

    $709 is the cheapest one-way deal found within the past few days, from American Airlines. You may also be able to find cheap deals on Air Canada and Qantas Airways, with prices starting from $732 and $797, respectively.

  • Can I find deals for flights from Sydney to O'Hare Intl that include hotel bookings?

    Yes. In addition to deals on Sydney to O'Hare Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Sydney to O'Hare Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sydney to O'Hare Intl.

  • Can I find deals for business class flights from Sydney to O'Hare Intl?

    Yes. Cheapflights offers flight deals from Sydney to O'Hare Intl 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 Sydney to Chicago O'Hare Intl Airport?

    Currently, September is the cheapest month in which you can book a flight from Sydney to Chicago O'Hare Intl Airport (average of $937). Flying from Sydney to Chicago O'Hare Intl Airport in January is currently the most expensive (average of $2,951). 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

Traveling to a place near Chicago O'Hare Intl Airport?

Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locations
Benton Harbor
Rosemont
Schaumburg
Naperville
Lake Geneva
Gurnee
Delavan
Oakbrook Terrace
Downers Grove
Des Plaines
Oak Brook
South Holland
Libertyville
Hoffman Estates
Warrenville
Rockford
Racine
Great Lakes
Northbrook
Waukegan

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from Sydney to O'Hare Intl

Discover the top 2 airlines that operate flights from Sydney to O'Hare Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 25, 2026.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$970Average$1,401FlexibilityNo cancel feeOn-time74%
United AirlinesCheapest$1,113Average$1,279FlexibilityNo cancel feeOn-time69%

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