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O'Hare Intl

$384+ 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 5/19. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — ORD
Mar 13 — Mar 201
Fri 3/13
Fri 3/20
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 February 11, 2026.

This lol.travel deal was found by Cheapflights users on 2/8. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/211:20 am
SYD
-
ORD
1 stop20h 21m
Air Canada
Mon 3/163:35 pm
ORD
-
SYD
1 stop25h 00m
Air Canada
Deal found 2/8$770
This Flightnetwork deal was found by Cheapflights users on 2/9. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/511:20 am
SYD
-
ORD
1 stop20h 21m
Air Canada
Wed 3/183:35 pm
ORD
-
SYD
1 stop25h 00m
Air Canada
Deal found 2/9$797
This Air Canada deal was found by Cheapflights users on 2/9. 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 10/710:20 am
SYD
-
ORD
1 stop25h 33m
Air Canada
Tue 10/138:45 am
ORD
-
SYD
2 stops31h 35m
Air Canada
Deal found 2/9$801
This Air Canada deal was found by Cheapflights users on 2/8. 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.
Thu 3/1910:25 am
SYD
-
ORD
2 stops37h 35m
Air Canada
Tue 4/218:42 am
ORD
-
SYD
2 stops31h 38m
Air Canada
Deal found 2/8$807
This Air Canada deal was found by Cheapflights users on 2/7. 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.
Tue 3/1010:20 am
SYD
-
ORD
2 stops37h 40m
Air Canada
Tue 3/1712:50 pm
ORD
-
SYD
2 stops27h 45m
Air Canada
Deal found 2/7$811
This Gotogate deal was found by Cheapflights users on 2/9. 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 6/29:20 am
SYD
-
ORD
2 stops39h 58m
Air Canada
Tue 8/43:40 pm
ORD
-
SYD
1 stop24h 40m
Air Canada
Deal found 2/9$817

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 February 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$770
(lol.travel)

One-way from

$384
(Trip.com)

Popular in

January

Cheapest in

March

Average price

$1,070
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.
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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. 33% potential increase in price ($601 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 15% potential price decrease ($160 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 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 February 11, 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

Sydney

Fly to

O'Hare Intl

Route

Depart

Return

Price

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Thu 3/5

11:20 am-10:04 pm

2 stops27h 44m

Chicago O'Hare Intl

Wed 3/18

7:15 am-8:35 am

3 stops33h 20m

$813

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Wed 6/17

9:20 am-8:05 pm

2 stops25h 45m

Chicago O'Hare Intl

Wed 6/24

9:50 am-7:20 am

2 stops30h 30m

$823

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Wed 4/22

9:20 am-8:05 pm

2 stops25h 45m

Chicago O'Hare Intl

Mon 4/27

8:40 am-7:20 am

2 stops31h 40m

$837

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Fri 7/31

9:20 am-7:52 pm

2 stops25h 32m

Chicago O'Hare Intl

Sat 9/12

8:45 am-7:20 am

2 stops31h 35m

$903

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Fri 6/19

9:20 am-9:00 am

2 stops38h 40m

Chicago O'Hare Intl

Mon 7/20

8:40 pm-7:20 am

2 stops43h 40m

$921

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Fri 3/20

10:20 am-7:45 pm

2 stops25h 25m

Chicago O'Hare Intl

Mon 4/13

9:05 am-7:20 am

2 stops31h 15m

$943

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Sat 5/16

9:20 am-2:45 pm

1 stop20h 25m

Chicago O'Hare Intl

Sat 6/6

3:40 pm-7:20 am

1 stop24h 40m

$968

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Thu 3/26

10:25 am-8:00 am

2 stops37h 35m

Chicago O'Hare Intl

Thu 4/2

3:40 pm-8:20 am

1 stop24h 40m

$989

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Mon 6/22

9:20 am-10:16 am

2 stops39h 56m

Chicago O'Hare Intl

Sun 7/19

3:40 pm-7:20 am

1 stop24h 40m

$1,012

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Tue 5/19

1:15 pm-5:50 am

2 stops31h 35m

$384

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/9

Showing 1-10 of 18 results
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 February.
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 February 6, 2026.

The best time to book flights from Sydney to Chicago O'Hare Intl Airport is 78 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 $620). 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 February 11, 2026.
See what other customers who have flown with Qantas Airways 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
988 reviews

Overall

7.5

Boarding

7.7

Comfort

7.5

Entertainment

7.2

Crew

8.1

Food

7.0

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
988 reviews
Qantas Airways
7.5
Good
988 reviews

Overall

7.5

Boarding

7.7

Comfort

7.5

Entertainment

7.2

Crew

8.1

Food

7.0

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 1 airline.

  • 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 27h 44m. The distance from Sydney to Chicago O'Hare Intl Airport is about 9228 mi.

  • What is the cheapest airline to fly from Sydney to Chicago O'Hare Intl Airport round-trip?

    According to our current data, Qantas Airways ($646), offers the cheapest pricing from Sydney to Chicago O'Hare Intl Airport. This flight start at 45% 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?

    $399 is the cheapest one-way deal found within the past few days, from Qantas Airways. You may also be able to find cheap deals on American Airlines and Air Canada, with prices starting from $469 and $530, 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 $620). 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
Naperville
Gurnee
Elgin
Hoffman Estates
Beloit
Delavan
Oak Brook
Des Plaines
Downers Grove
Elk Grove Village
Skokie
Libertyville
Lake Geneva
Waukegan
Bridgeview
Kenosha
Warrenville
Aurora

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Sydney to O'Hare Intl

See prices for flight routes from nearby airports that may be better suited for you.
Sydney to Midway flights

Top airline flying from Sydney to O'Hare Intl

Discover the top airline 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 February 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$646Average$970FlexibilityNo cancel feeOn-time74%

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