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O'Hare Intl

$559+ 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 7/30. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — ORD
Apr 23 — Apr 301
Thu 4/23
Thu 4/30
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 March 24, 2026.

This Trip.com deal was found by Cheapflights users on 3/23. 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 5/11:15 pm
SYD
-
ORD
2 stops25h 12m
Multiple Airlines
Sat 5/93:00 pm
ORD
-
SYD
2 stops29h 50m
Multiple Airlines
Deal found 3/23$895
This Gotogate deal was found by Cheapflights users on 3/22. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/219:20 am
SYD
-
ORD
1 stop20h 25m
Air Canada
Tue 4/287:13 am
ORD
-
SYD
2 stops33h 07m
Air Canada
Deal found 3/22$897
This Gotogate deal was found by Cheapflights users on 3/21. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/59:20 am
SYD
-
ORD
2 stops44h 33m
Air Canada
Tue 5/123:40 pm
ORD
-
SYD
1 stop24h 40m
Air Canada
Deal found 3/21$901
This Gotogate deal was found by Cheapflights users on 3/20. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/49:20 am
SYD
-
ORD
2 stops49h 48m
Air Canada
Mon 5/113:40 pm
ORD
-
SYD
1 stop24h 40m
Air Canada
Deal found 3/20$902
This Gotogate deal was found by Cheapflights users on 3/20. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/169:20 am
SYD
-
ORD
2 stops49h 45m
Air Canada
Wed 4/293:40 pm
ORD
-
SYD
1 stop24h 40m
Air Canada
Deal found 3/20$903
This Air Canada deal was found by Cheapflights users on 3/22. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/69:20 am
SYD
-
ORD
1 stop25h 55m
Air Canada
Wed 5/138:45 am
ORD
-
SYD
2 stops31h 35m
Air Canada
Deal found 3/22$907

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 March 24, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$895
(Trip.com)

One-way from

$559
(Kiwi.com)

Popular in

January

Cheapest in

September

Average price

$1,060
Provider with most accurate pricing for Sydney Kingsford Smith-Chicago O'Hare Intl flight deals.
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Provider most trusted by Cheapflights users for Sydney Kingsford Smith-Chicago O'Hare Intl flights.
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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. 31% potential increase in price ($582 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 13% potential price decrease ($152 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 March 24, 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 6/18

9:30 am-2:35 pm

1 stop20h 05m

Chicago O'Hare Intl

Mon 7/20

6:00 am-7:00 am

1 stop34h 00m

$1,173

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Sun 6/21

9:15 am-11:18 pm

1 stop29h 03m

Chicago O'Hare Intl

Sun 7/19

7:35 am-6:50 am

1 stop32h 15m

$1,220

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Sat 6/6

10:20 am-2:50 pm

1 stop19h 30m

Chicago O'Hare Intl

Sat 6/27

9:30 pm-7:00 am

1 stop42h 30m

$1,220

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Fri 6/12

9:15 am-11:45 pm

1 stop29h 30m

Chicago O'Hare Intl

Sun 7/12

7:00 am-6:50 am

1 stop32h 50m

$1,225

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Fri 6/12

9:15 am-8:35 am

2 stops38h 20m

Chicago O'Hare Intl

Tue 7/14

11:30 am-6:50 am

2 stops28h 20m

$1,226

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Sun 6/28

10:20 am-5:57 am

1 stop34h 37m

Chicago O'Hare Intl

Sun 7/19

11:00 pm-6:55 am

1 stop40h 55m

$1,230

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Sat 6/20

10:20 am-9:35 pm

1 stop26h 15m

Chicago O'Hare Intl

Sat 7/18

9:35 pm-6:55 am

1 stop42h 20m

$1,230

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Fri 6/12

9:15 am-8:35 am

2 stops38h 20m

Chicago O'Hare Intl

Sat 7/18

5:00 pm-6:50 am

1 stop22h 50m

$1,279
Quickest round-trip

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Fri 6/12

9:20 am-2:45 pm

1 stop20h 25m

Chicago O'Hare Intl

Sun 7/12

3:40 pm-7:20 am

1 stop24h 40m

$1,316

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Mon 6/22

9:15 am-11:18 pm

1 stop29h 03m

Chicago O'Hare Intl

Sun 7/19

7:35 am-6:50 am

1 stop32h 15m

$1,365

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/19

Showing 1-10 of 17 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 March.
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?

Use this chart to determine the optimal time to book a round-trip flight from Sydney to O'Hare Intl. Price data was last updated on March 13, 2026.

The best time to book flights from Sydney to Chicago O'Hare Intl Airport is 27 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, April is the cheapest month in which you can book a flight from Sydney to Chicago O'Hare Intl Airport (average of $670). Flying from Sydney to Chicago O'Hare Intl Airport in January is currently the most expensive (average of $1,315). 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 March 24, 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
1,009 reviews

Food

7.0

Entertainment

7.2

Comfort

7.4

Boarding

7.7

Overall

7.5

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Midhat,Feb 2026

WYA - ADL

Frequent delays, 3rd week in a row. Flight attendants not at all friendly.
Qantas Airways
7.5
Good
1,009 reviews
Qantas Airways
7.5
Good
1,009 reviews

Food

7.0

Entertainment

7.2

Comfort

7.4

Boarding

7.7

Overall

7.5

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Midhat,Feb 2026

WYA - ADL

Frequent delays, 3rd week in a row. Flight attendants not at all friendly.
United Airlines
7.4
Good
9,471 reviews
Qantas Airways
7.5
Good
1,009 reviews

Food

7.0

Entertainment

7.2

Comfort

7.4

Boarding

7.7

Overall

7.5

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Midhat,Feb 2026

WYA - ADL

Frequent delays, 3rd week in a row. Flight attendants not at all friendly.

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 20h 05m. The distance from Sydney to Chicago O'Hare Intl Airport is about 9228 mi. This flight may include one or multiple stops.

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

    According to our current data, United Airlines ($795), and Qantas Airways ($970) offers the cheapest pricing from Sydney to Chicago O'Hare Intl Airport. These flights start at 37% 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?

    $530 is the cheapest one-way deal found within the past few days, from Air Canada. You may also be able to find cheap deals on American Airlines and Qantas Airways, with prices starting from $772 and $796, 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, April is the cheapest month in which you can book a flight from Sydney to Chicago O'Hare Intl Airport (average of $670). Flying from Sydney to Chicago O'Hare Intl Airport in January is currently the most expensive (average of $1,315). 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
Schaumburg
Rosemont
Gurnee
Naperville
Lake Geneva
Hoffman Estates
Delavan
Downers Grove
Des Plaines
Elgin
Oakbrook Terrace
Oak Brook
South Holland
Elk Grove Village
Libertyville
Waukegan
Beloit
Warrenville
Bridgeview
Great Lakes

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 March 24, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$795Average$1,279FlexibilityNo cancel feeOn-time69%
Qantas AirwaysCheapest$970Average$1,012FlexibilityNo cancel feeOn-time74%

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