Cheap flights from Sydney to Chicago O'Hare Intl Airport from $841

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 17/3. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — ORD
23 Mar — 30 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Sydney to O'Hare Intl

Enter your travel dates to find the best prices.

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 21 February 2026.

Tue 10/310:20
SYD
-
ORD
1 stop20h 21m
Air Canada
Wed 25/315:35
ORD
-
SYD
1 stop25h 00m
Air Canada
Deal found 18/2$1,354
Tue 2/609:20
SYD
-
ORD
2 stops22h 45m
Air Canada
Tue 4/815:40
ORD
-
SYD
1 stop24h 40m
Air Canada
Deal found 17/2$1,356
Wed 11/310:20
SYD
-
ORD
1 stop20h 21m
Air Canada
Thu 26/307:15
ORD
-
SYD
2 stops33h 20m
Air Canada
Deal found 19/2$1,363
Thu 5/311:20
SYD
-
ORD
1 stop25h 40m
Air Canada
Wed 18/315:35
ORD
-
SYD
1 stop25h 00m
Air Canada
Deal found 17/2$1,366
Mon 9/311:20
SYD
-
ORD
2 stops26h 44m
Air Canada
Tue 24/315:35
ORD
-
SYD
1 stop25h 00m
Air Canada
Deal found 17/2$1,367
Fri 9/1010:20
SYD
-
ORD
2 stops25h 52m
Air Canada
Tue 13/1008:45
ORD
-
SYD
2 stops31h 35m
Air Canada
Deal found 19/2$1,397

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 21 February 2026.

Round-trip from

$1,354

One-way from

$841

Popular in

January

Cheapest in

March

Average price

$1,533
Air Canada
  • Air Canada
  • 10/3-25/3
  • 2 total stops
  • 45h 21m total
  • Sydney to Chicago
17/3
  • 17/3
  • 3 total stops
  • 38h 29m total
  • Sydney to Chicago
Highest demand for flights based on searches. 33% potential increase in price ($1,210 potential increase over avg. return price).
Cheapest flight prices on average. 15% potential price decrease ($321 potential savings vs. average return price).
Average for round-trip flights in February 2026

Cheapflights Fare Finder

 
Customise 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 647,157 searches. Data last updated 21 February 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

Tue 2/6

09:20-20:05

1 stop25h 45m

Chicago O'Hare Intl

Tue 4/8

15:40-07:20

1 stop24h 40m

$1,356

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Mon 9/3

11:20-11:18

2 stops39h 58m

Chicago O'Hare Intl

Tue 24/3

07:15-08:35

2 stops33h 20m

$1,366

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Thu 23/4

09:20-14:55

2 stops44h 35m

Chicago O'Hare Intl

Thu 30/4

08:40-07:20

2 stops31h 40m

$1,366

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Thu 5/3

11:20-20:00

1 stop25h 40m

Chicago O'Hare Intl

Wed 18/3

15:35-08:35

1 stop25h 00m

$1,366

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Thu 19/3

10:25-14:41

1 stop20h 16m

Chicago O'Hare Intl

Tue 21/4

15:40-07:20

1 stop24h 40m

$1,418

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Wed 4/3

11:20-22:04

2 stops27h 44m

Chicago O'Hare Intl

Tue 10/3

06:17-08:35

2 stops34h 18m

$1,428

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Mon 9/3

11:20-13:01

2 stops41h 41m

Chicago O'Hare Intl

Wed 11/3

15:35-08:35

1 stop25h 00m

$1,431

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Tue 10/3

10:20-16:45

2 stops22h 25m

Chicago O'Hare Intl

Sun 15/3

18:25-08:35

2 stops46h 10m

$1,462

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Sat 7/3

09:00-14:41

2 stops22h 41m

Chicago O'Hare Intl

Wed 11/3

15:35-08:35

1 stop25h 00m

$1,492

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Mon 13/7

09:30-16:46

1 stop22h 16m

Chicago O'Hare Intl

Wed 22/7

18:30-06:55

1 stop21h 25m

$1,506

Flights are sorted by cheapest return flights first.

Deals found on 17/2

Showing 1-10 of 18 results
1
2

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 return 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 return flight from Sydney to O'Hare Intl. Price data was last updated on 20 February 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 $878). Flying from Sydney to Chicago O'Hare Intl Airport in January is currently the most expensive (average of $1,863). 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 for a return flight 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 21 February 2026.
Check out reviews from past customers who have flown with Air New Zealand, Qantas Airways, andUnited Airlines from Sydney to Chicago O'Hare Intl Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Comfort

8.0

Crew

8.5

Boarding

8.2

Food

7.4

Entertainment

7.4

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Marsha,Feb 2026

LAX - AKL

Air New Zealand is a great airline. Airline staff made us feel welcome and flight attendants were attentive and kind.

Comfort

8.0

Crew

8.5

Boarding

8.2

Food

7.4

Entertainment

7.4

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Marsha,Feb 2026

LAX - AKL

Air New Zealand is a great airline. Airline staff made us feel welcome and flight attendants were attentive and kind.

Comfort

8.0

Crew

8.5

Boarding

8.2

Food

7.4

Entertainment

7.4

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Marsha,Feb 2026

LAX - AKL

Air New Zealand is a great airline. Airline staff made us feel welcome and flight attendants were attentive and kind.

Comfort

8.0

Crew

8.5

Boarding

8.2

Food

7.4

Entertainment

7.4

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Marsha,Feb 2026

LAX - AKL

Air New Zealand is a great airline. Airline staff made us feel welcome and flight attendants were attentive and kind.

Comfort

8.0

Crew

8.5

Boarding

8.2

Food

7.4

Entertainment

7.4

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Marsha,Feb 2026

LAX - AKL

Air New Zealand is a great airline. Airline staff made us feel welcome and flight attendants were attentive and kind.

Comfort

8.0

Crew

8.5

Boarding

8.2

Food

7.4

Entertainment

7.4

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Marsha,Feb 2026

LAX - AKL

Air New Zealand is a great airline. Airline staff made us feel welcome and flight attendants were attentive and kind.

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?

    For a flight from Sydney to Chicago O'Hare Intl, you will be flying from Kingsford Smith. Sydney Kingsford Smith (SYD) is just 7.5 km from the centre of the city. Kingsford Smith is the only Sydney airport and it handles 0 outbound flights to Chicago O'Hare Intl per day. 6 airlines have flights to Chicago O'Hare Intl from Sydney Kingsford Smith on a regular basis.

  • How long is the flight from Sydney to Chicago O'Hare Intl Airport?

    There are many flights that can get you from Sydney to Chicago O'Hare Intl Airport in 25h 45m. Fly via Air Canada to get the fastest option. Airlines will cover a distance of 14851 km.

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

    Qantas Airways, at $931, was found to be the cheapest airline from Sydney to Chicago O'Hare Intl Airport.Alternate airlines to your destination round-trip include Air Canada and American Airlines. These flights start at 45% 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 holiday 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 $878). Flying from Sydney to Chicago O'Hare Intl Airport in January is currently the most expensive (average of $1,863). 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

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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 6 airlines flying from Sydney to O'Hare Intl

Discover the top 6 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 647,157 searches. Data last updated 21 February 2026.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$931Average$1,240FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Air CanadaCheapest$1,073Average$1,538FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
American AirlinesCheapest$1,105Average$1,151FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Air New ZealandCheapest$1,340Average$1,498FlexibilityNo cancel feeOn-time78%
Search Air New Zealand flights
United AirlinesCheapest$1,401Average$2,119FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
ANACheapest$1,488Average$1,606FlexibilityNo cancel feeOn-time80%
Search ANA flights

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How does Cheapflights help users find flights from Sydney to O'Hare Intl?

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Why should you use Cheapflights to find cheap flight tickets from Sydney to O'Hare Intl?

Millions of users choose and trust Cheapflights to book the best flight deals from Sydney to O'Hare Intl for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Sydney to O'Hare Intl with no change fees?

Certainly. Search results for flights to O'Hare Intl from Sydney shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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