O'Hare Intl

$450+ 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 10/15. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — ORD
Oct 25 — Nov 11
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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 September 25, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$946
(BYOjet)

One-way from

$450
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$883
Provider with most accurate pricing for Sydney Kingsford Smith-Chicago O'Hare Intl flight deals.
Provider most trusted by Cheapflights users for Sydney Kingsford Smith-Chicago O'Hare Intl flights.
From Sydney Kingsford Smith to Chicago O'Hare Intl
One-way flight from Sydney Kingsford Smith to Chicago O'Hare Intl
Highest demand for flights based on searches. 22% potential increase in price ($283 potential increase over avg. RT price).
Cheapest flight prices on average. 6% potential price decrease ($59 potential savings vs. average RT price).
Average for round-trip flights in September 2025

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 September 25, 2025.

This BYOjet deal was found by Cheapflights users on 9/22. 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.
Fri 11/71:55 pmSYD - ORD
2 stops32h 21mAir New Zealand
Fri 11/142:30 pmORD - SYD
2 stops25h 15mAir New Zealand
Deal found 9/22$946
This BYOjet deal was found by Cheapflights users on 9/24. 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.
Thu 11/69:55 amSYD - ORD
2 stops31h 20mAir New Zealand
Mon 11/101:00 pmORD - SYD
2 stops28h 30mAir New Zealand
Deal found 9/24$947
This Trip.com deal was found by Cheapflights users on 9/25. 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.
Sun 11/92:00 pmSYD - ORD
2 stops26h 00mMultiple Airlines
Sun 11/166:30 amORD - SYD
2 stops37h 00mMultiple Airlines
Deal found 9/25$992
This Jetabroad deal was found by Cheapflights users on 9/23. 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 Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/811:45 amSYD - ORD
2 stops25h 40mAir New Zealand
Sat 11/151:00 pmORD - SYD
2 stops28h 30mAir New Zealand
Deal found 9/23$999
This Air New Zealand deal was found by Cheapflights users on 9/24. 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 Air New Zealand is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/311:45 amSYD - ORD
2 stops24h 59mAir New Zealand
Mon 12/82:35 pmORD - SYD
2 stops26h 55mAir New Zealand
Deal found 9/24$1,027
This Air Canada deal was found by Cheapflights users on 9/23. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/811:20 amSYD - ORD
1 stop20h 21mAir Canada
Sat 11/153:40 pmORD - SYD
1 stop24h 55mAir Canada
Deal found 9/23$1,043
This Jetabroad deal was found by Cheapflights users on 9/23. 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 Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/119:40 pmSYD - ORD
2 stops33h 29mHawaiian Airlines
Wed 2/182:00 pmORD - SYD
2 stops36h 45mHawaiian Airlines
Deal found 9/23$1,056
This Air New Zealand deal was found by Cheapflights users on 9/23. 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 Air New Zealand is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/811:50 amSYD - ORD
2 stops25h 34mAir New Zealand
Tue 10/214:40 pmORD - SYD
2 stops24h 05mAir New Zealand
Deal found 9/23$1,060
This Trip.com deal was found by Cheapflights users on 9/22. 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.
Fri 11/75:45 pmSYD - ORD
1 stop22h 15mMultiple Airlines
Fri 11/146:30 amORD - SYD
1 stop31h 55mMultiple Airlines
Deal found 9/22$1,087
This lol.travel deal was found by Cheapflights users on 9/23. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1110:30 amSYD - ORD
2 stops22h 35mUnited Airlines
Mon 10/273:43 pmORD - SYD
1 stop23h 17mUnited Airlines
Deal found 9/23$1,090

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 September 25, 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 11/6

9:55 am-12:15 am

2 stops31h 20m

Chicago O'Hare Intl

Mon 11/10

1:00 pm-10:30 am

2 stops28h 30m

$947

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Sun 11/9

5:45 pm-10:02 am

2 stops33h 17m

Chicago O'Hare Intl

Sun 11/16

6:30 am-7:25 am

1 stop31h 55m

$1,048

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Thu 10/9

10:10 am-5:17 pm

2 stops23h 07m

Chicago O'Hare Intl

Wed 10/22

2:57 pm-8:05 am

2 stops25h 08m

$1,145

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Wed 10/8

10:10 am-4:03 pm

1 stop21h 53m

Chicago O'Hare Intl

Tue 10/21

7:01 pm-8:05 am

1 stop21h 04m

$1,153

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Thu 10/9

6:45 pm-11:59 pm

1 stop21h 14m

Chicago O'Hare Intl

Wed 10/22

7:15 am-7:30 am

2 stops32h 15m

$1,157

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Sat 11/8

12:10 pm-7:30 pm

2 stops24h 20m

Chicago O'Hare Intl

Sat 11/15

3:43 pm-7:00 am

1 stop22h 17m

$1,161

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Fri 11/7

9:40 pm-9:40 pm

2 stops65h 00m

Chicago O'Hare Intl

Fri 11/14

9:20 am-7:45 pm

2 stops41h 25m

$1,345

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Tue 10/28

10:20 am-4:44 pm

1 stop22h 24m

Chicago O'Hare Intl

Thu 10/30

3:40 pm-8:35 am

1 stop24h 55m

$1,384

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Thu 12/25

11:50 am-5:05 pm

1 stop22h 15m

Chicago O'Hare Intl

Fri 1/23

6:29 pm-9:15 am

1 stop21h 46m

$1,409

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Tue 10/7

11:20 am-7:35 pm

2 stops24h 15m

Chicago O'Hare Intl

Tue 10/14

11:06 am-7:55 am

2 stops28h 49m

$1,412

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/23

Showing 1-10 of 21 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 September.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice 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 September 19, 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, August is the cheapest month in which you can book a flight from Sydney to Chicago O'Hare Intl Airport (average of $245). Flying from Sydney to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $321). 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 September 25, 2025.

A simple way to save on the total cost of your ticket is to fly from Sydney to Chicago O'Hare Intl Airport at noon. If you’re flexible enough to do this you can expect to save up to 12% on your trip compared to booking a flight in the afternoon.

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 September 25, 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.

Boarding

7.7

Comfort

7.5

Food

7.0

Overall

7.5

Crew

8.2

Entertainment

7.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

SYD - BNE

Great. Except I haven’t claimed my free lounge passes since 2022 on my Qantas credit card. That’s lots of flights I would have booked if you’d reminded me

Boarding

7.7

Comfort

7.5

Food

7.0

Overall

7.5

Crew

8.2

Entertainment

7.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

SYD - BNE

Great. Except I haven’t claimed my free lounge passes since 2022 on my Qantas credit card. That’s lots of flights I would have booked if you’d reminded me

Boarding

7.7

Comfort

7.5

Food

7.0

Overall

7.5

Crew

8.2

Entertainment

7.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

SYD - BNE

Great. Except I haven’t claimed my free lounge passes since 2022 on my Qantas credit card. That’s lots of flights I would have booked if you’d reminded me

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 23h 07m. 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, August is the cheapest month in which you can book a flight from Sydney to Chicago O'Hare Intl Airport (average of $245). Flying from Sydney to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $321). 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
Gurnee
Hoffman Estates
Des Plaines
Elgin
Arlington Heights
Orland Park
Beloit
Racine
Rockford
Oak Brook
Elk Grove Village
Downers Grove
Naperville
Merrillville
Bridgeview
Warrenville
Joliet

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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.

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 September 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$631Average$762FlexibilityNo cancel feeOn-time74%
American AirlinesCheapest$884Average$1,129FlexibilityNo cancel feeOn-time71%

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