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O'Hare Intl

$565+ 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 8/25. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — ORD
Jun 9 — Jun 161
Tue 6/9
Tue 6/16
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 May 10, 2026.

This American Airlines deal was found by Cheapflights users on 5/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/109:10 am
SYD
-
ORD
1 stop22h 35m
American Airlines
Thu 9/247:01 pm
ORD
-
SYD
1 stop21h 04m
American Airlines
Deal found 5/9$1,082
This American Airlines deal was found by Cheapflights users on 5/7. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/39:10 am
SYD
-
ORD
2 stops24h 25m
American Airlines
Sat 9/125:09 pm
ORD
-
SYD
2 stops22h 56m
American Airlines
Deal found 5/7$1,083
This Trip.com deal was found by Cheapflights users on 5/7. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/101:15 pm
SYD
-
ORD
3 stops30h 52m
Multiple Airlines
Tue 6/237:20 am
ORD
-
SYD
3 stops37h 30m
Multiple Airlines
Deal found 5/7$1,084
This American Airlines deal was found by Cheapflights users on 5/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/19:10 am
SYD
-
ORD
1 stop30h 19m
American Airlines
Fri 10/98:25 pm
ORD
-
SYD
1 stop43h 05m
American Airlines
Deal found 5/9$1,089
This Ovago deal was found by Cheapflights users on 5/9. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/109:10 am
SYD
-
ORD
1 stop22h 35m
Qantas Airways
Thu 9/243:52 pm
ORD
-
SYD
1 stop24h 13m
Qantas Airways
Deal found 5/9$1,091
This American Airlines deal was found by Cheapflights users on 5/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/75:50 pm
SYD
-
ORD
1 stop21h 09m
American Airlines
Sat 9/194:53 pm
ORD
-
SYD
2 stops23h 12m
American Airlines
Deal found 5/10$1,092
This Delta deal was found by Cheapflights users on 5/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/109:15 am
SYD
-
ORD
2 stops27h 19m
Delta
Thu 9/243:50 pm
ORD
-
SYD
2 stops24h 00m
Delta
Deal found 5/9$1,101
This Delta deal was found by Cheapflights users on 5/8. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/19:15 am
SYD
-
ORD
2 stops27h 43m
Delta
Fri 10/97:35 am
ORD
-
SYD
1 stop32h 15m
Delta
Deal found 5/8$1,102
This Delta deal was found by Cheapflights users on 5/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/79:15 am
SYD
-
ORD
2 stops26h 09m
Delta
Sat 9/195:00 pm
ORD
-
SYD
2 stops22h 50m
Delta
Deal found 5/10$1,103
This American Airlines deal was found by Cheapflights users on 5/7. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/119:10 am
SYD
-
ORD
1 stop19h 34m
American Airlines
Thu 10/14:53 pm
ORD
-
SYD
2 stops23h 12m
American Airlines
Deal found 5/7$1,133

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 May 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,082
(American Airlines)

One-way from

$565
(Trip.com)

Popular in

January

Cheapest in

September

Average price

$1,214
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. 29% potential increase in price ($540 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 May 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 May 10, 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

Tue 8/25

1:15 pm-9:02 pm

2 stops22h 47m

Chicago O'Hare Intl

Wed 9/30

4:45 pm-11:50 am

2 stops28h 05m

$1,610

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Fri 6/5

8:45 pm-6:50 pm

2 stops37h 05m

Chicago O'Hare Intl

Wed 8/12

8:20 pm-6:50 pm

2 stops31h 30m

$1,615

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Sat 5/30

8:45 pm-1:14 pm

2 stops31h 29m

Chicago O'Hare Intl

Fri 6/12

5:42 pm-6:50 pm

2 stops34h 08m

$1,662

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Tue 6/2

8:45 pm-6:20 am

3 stops24h 35m

Chicago O'Hare Intl

Wed 6/10

8:05 pm-6:50 pm

2 stops31h 45m

$1,673

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Thu 6/4

9:15 am-9:53 pm

2 stops27h 38m

Chicago O'Hare Intl

Wed 8/12

6:35 pm-6:50 am

1 stop21h 15m

$1,701
Quickest round-trip

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Wed 6/3

10:20 am-6:51 pm

2 stops23h 31m

Chicago O'Hare Intl

Wed 6/24

4:45 pm-6:55 am

2 stops23h 10m

$1,701

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Thu 6/11

8:45 pm-5:00 am

2 stops23h 15m

Chicago O'Hare Intl

Thu 7/23

5:42 pm-6:50 pm

2 stops34h 08m

$1,714

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Thu 5/28

9:15 am-4:51 pm

2 stops22h 36m

Chicago O'Hare Intl

Mon 6/8

1:46 pm-6:50 am

2 stops26h 04m

$1,717

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Wed 5/27

9:15 am-4:51 pm

2 stops22h 36m

Chicago O'Hare Intl

Tue 6/9

11:23 am-6:50 am

2 stops28h 27m

$1,717

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Tue 10/13

11:20 am-4:41 pm

1 stop21h 21m

Chicago O'Hare Intl

Sat 10/31

9:30 pm-7:00 am

1 stop41h 30m

$1,753

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/6

Showing 1-10 of 19 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 May.
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 42 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 $931). 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 May 10, 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
1,034 reviews

Food

7.0

Overall

7.5

Comfort

7.4

Crew

8.1

Boarding

7.7

Entertainment

7.2

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
1,034 reviews
Qantas Airways
7.5
Good
1,034 reviews

Food

7.0

Overall

7.5

Comfort

7.4

Crew

8.1

Boarding

7.7

Entertainment

7.2

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
9,694 reviews
Qantas Airways
7.5
Good
1,034 reviews

Food

7.0

Overall

7.5

Comfort

7.4

Crew

8.1

Boarding

7.7

Entertainment

7.2

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 24h 04m. 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, United Airlines ($795), and Qantas Airways ($970) offers the cheapest pricing from Sydney to Chicago O'Hare Intl Airport. These flights start at 39% 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?

    $732 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, September is the cheapest month in which you can book a flight from Sydney to Chicago O'Hare Intl Airport (average of $931). 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
Rosemont
Schaumburg
Naperville
Gurnee
Delavan
Oakbrook Terrace
Lake Geneva
Benton Harbor
Hoffman Estates
Downers Grove
Des Plaines
Oak Brook
South Holland
Libertyville
Warrenville
Elk Grove Village
Bridgeview
Great Lakes
Lansing
Arlington Heights

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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 May 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$795Average$1,155FlexibilityNo cancel feeOn-time69%
Qantas AirwaysCheapest$970Average$1,265FlexibilityNo cancel feeOn-time74%

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