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O'Hare Intl

$611+ 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 12/8. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — ORD
Dec 12 — Dec 191
Fri 12/12
Fri 12/19
1 adult, Economy
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Find cheap flights from Sydney to O'Hare Intl with Cheapflights

1. Tell us where you want to go

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Cheapflights Tip: The best prices from Sydney Kingsford Smith to Chicago O'Hare Intl are usually found in February or May, booked 78 days in advance, depart on a Monday or Tuesday and return on a Saturday

Cheap 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 November 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$977
(BYOjet)

One-way from

$611
(Jetabroad)

Popular in

December

Cheapest in

February

Average price

$1,164
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
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One-way flight from Sydney Kingsford Smith to Chicago O'Hare Intl
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Highest demand for flights based on searches. 19% potential increase in price ($240 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($43 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Find 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 November 12, 2025.

This American Airlines deal was found by Cheapflights users on 11/11. 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 12/111:20 amSYD - ORD
1 stop21h 48mAmerican Airlines
Tue 12/1611:45 amORD - SYD
1 stop28h 15mAmerican Airlines
Deal found 11/11$1,019
This lastminute.com deal was found by Cheapflights users on 11/12. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1312:25 pmSYD - ORD
1 stop42h 25mANA
Wed 11/266:00 pmORD - SYD
2 stops33h 15mANA
Deal found 11/12$1,120
This Aunt Betty deal was found by Cheapflights users on 11/11. 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 Aunt Betty is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/159:55 amSYD - ORD
2 stops25h 55mAir New Zealand
Mon 12/2912:50 pmORD - SYD
2 stops30h 50mAir New Zealand
Deal found 11/11$1,272
This Flightnetwork deal was found by Cheapflights users on 11/12. 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 11/1311:20 amSYD - ORD
1 stop20h 21mAir Canada
Wed 11/263:40 pmORD - SYD
1 stop24h 55mAir Canada
Deal found 11/12$1,302
This Gotogate deal was found by Cheapflights users on 11/12. 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.
Fri 11/1411:20 amSYD - ORD
1 stop20h 21mAir Canada
Thu 11/277:05 amORD - SYD
2 stops33h 30mAir Canada
Deal found 11/12$1,344
This BestPriceTravel deal was found by Cheapflights users on 11/10. 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 BestPriceTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/1611:20 amSYD - ORD
1 stop20h 21mAir Canada
Wed 11/193:40 pmORD - SYD
1 stop24h 55mAir Canada
Deal found 11/10$1,390
This BestPriceTravel deal was found by Cheapflights users on 11/11. 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 BestPriceTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/1511:20 amSYD - ORD
1 stop20h 21mAir Canada
Mon 12/298:15 pmORD - SYD
2 stops44h 20mAir Canada
Deal found 11/11$1,403
This Bravofly deal was found by Cheapflights users on 11/10. 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 Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/163:15 pmSYD - ORD
1 stop38h 40mCathay Pacific
Wed 11/192:35 pmORD - SYD
1 stop26h 00mCathay Pacific
Deal found 11/10$1,429

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 November 12, 2025.
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 2/19

12:25 pm-5:01 am

2 stops33h 36m

Chicago O'Hare Intl

Mon 3/2

4:25 pm-8:15 pm

1 stop34h 50m

$1,123

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Mon 2/2

9:55 am-6:52 pm

2 stops25h 57m

Chicago O'Hare Intl

Thu 2/19

2:35 pm-8:45 am

2 stops25h 10m

$1,179

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Mon 2/2

11:20 am-2:41 pm

1 stop20h 21m

Chicago O'Hare Intl

Thu 2/19

10:00 am-9:35 am

2 stops30h 35m

$1,222

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Tue 2/3

11:20 am-5:08 pm

2 stops22h 48m

Chicago O'Hare Intl

Sat 2/7

8:45 am-9:35 am

2 stops31h 50m

$1,231

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Thu 2/12

9:55 am-8:23 pm

2 stops27h 28m

Chicago O'Hare Intl

Wed 5/6

4:17 pm-10:35 am

2 stops27h 18m

$1,243

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Mon 2/2

11:20 am-4:42 pm

1 stop22h 22m

Chicago O'Hare Intl

Sun 2/8

3:40 pm-9:35 am

1 stop24h 55m

$1,282

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Thu 2/19

11:20 am-2:41 pm

1 stop20h 21m

Chicago O'Hare Intl

Mon 3/2

3:40 pm-9:35 am

1 stop24h 55m

$1,289

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Thu 2/12

7:00 pm-7:35 pm

2 stops41h 35m

Chicago O'Hare Intl

Tue 5/5

12:30 am-7:40 am

2 stops40h 10m

$1,312

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Sun 2/1

11:20 am-2:41 pm

1 stop20h 21m

Chicago O'Hare Intl

Sat 5/9

6:30 pm-7:20 am

2 stops45h 50m

$1,333

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Wed 11/26

11:45 am-7:30 pm

2 stops24h 45m

$612

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/11

Showing 1-10 of 19 results
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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 November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
AranGrantPrice Accuracy2 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Sydney-Chicago O'Hare Intl Airport flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 November 7, 2025.

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 December is currently the most expensive (average of $1,045). 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.

What is the cheapest time of day to fly from SYD to ORD?

Find hourly flight availability from Sydney to O'Hare Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 12, 2025.

A simple way to save on the total cost of your ticket is to fly from Sydney to Chicago O'Hare Intl Airport in the afternoon. If you’re flexible enough to do this you can expect to save up to 32% on your trip compared to booking a flight at noon.

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 November 12, 2025.
See what other customers who have flown with Qantas Airways and American 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
933 reviews

Comfort

7.5

Food

7.0

Entertainment

7.2

Overall

7.5

Crew

8.2

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Carol,Oct 2025

ADL - MEL

Smooth flight, good onboard staff who were very caring when I didn’t feel very well.
Qantas Airways
7.5
Good
933 reviews
Qantas Airways
7.5
Good
933 reviews

Comfort

7.5

Food

7.0

Entertainment

7.2

Overall

7.5

Crew

8.2

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Carol,Oct 2025

ADL - MEL

Smooth flight, good onboard staff who were very caring when I didn’t feel very well.
American Airlines
7.2
Good
11,050 reviews
Qantas Airways
7.5
Good
933 reviews

Comfort

7.5

Food

7.0

Entertainment

7.2

Overall

7.5

Crew

8.2

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Carol,Oct 2025

ADL - MEL

Smooth flight, good onboard staff who were very caring when I didn’t feel very well.

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 21m. 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, Qantas Airways ($631), and American Airlines ($884) offers the cheapest pricing from Sydney to Chicago O'Hare Intl Airport. These flights start at 35% lower than the current average price 3 months from now.

  • 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 December is currently the most expensive (average of $1,045). 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
Skokie
Des Plaines
Gurnee
Hoffman Estates
Beloit
Delavan
Elgin
Oak Brook
Elk Grove Village
Downers Grove
Rockford
Naperville
Orland Park
Bridgeview
Warrenville
Waukegan
Aurora
Racine

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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 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 November 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$631Average$762FlexibilityNo cancel feeOn-time74%
American AirlinesCheapest$884Average$1,129FlexibilityNo cancel feeOn-time71%

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