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Cheap flights from Sydney to Chicago O'Hare Intl Airport from $897

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 10/9. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — ORD
8 Jul — 15 Jul1
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 8 June 2026.

Tue 22/909:10
SYD
-
ORD
1 stop23h 55m
American Airlines
Tue 29/913:50
ORD
-
SYD
1 stop26h 15m
American Airlines
Deal found 6/6$1,436
Thu 29/1011:15
SYD
-
ORD
1 stop34h 46m
American Airlines
Sun 1/1110:15
ORD
-
SYD
1 stop26h 55m
American Airlines
Deal found 3/6$1,443
Wed 23/909:10
SYD
-
ORD
1 stop20h 10m
American Airlines
Tue 6/1010:10
ORD
-
SYD
1 stop29h 20m
American Airlines
Deal found 6/6$1,448
Mon 21/912:00
SYD
-
ORD
1 stop23h 30m
American Airlines
Mon 5/1018:02
ORD
-
SYD
1 stop20h 53m
American Airlines
Deal found 6/6$1,458
Thu 24/906:00
SYD
-
ORD
2 stops29h 00m
American Airlines
Sat 10/1020:55
ORD
-
SYD
1 stop42h 00m
American Airlines
Deal found 6/6$1,480
Sat 3/1009:10
SYD
-
ORD
2 stops23h 53m
American Airlines
Tue 20/1018:03
ORD
-
SYD
1 stop22h 02m
American Airlines
Deal found 6/6$1,507
Sat 19/909:10
SYD
-
ORD
1 stop29h 20m
American Airlines
Sun 4/1006:45
ORD
-
SYD
1 stop31h 40m
American Airlines
Deal found 6/6$1,519
Sun 20/917:50
SYD
-
ORD
1 stop20h 40m
American Airlines
Sun 4/1016:53
ORD
-
SYD
1 stop22h 02m
American Airlines
Deal found 6/6$1,529
Sat 3/1009:15
SYD
-
ORD
1 stop27h 04m
Delta
Tue 13/1018:30
ORD
-
SYD
1 stop21h 20m
Delta
Deal found 4/6$1,546
Fri 18/917:50
SYD
-
ORD
1 stop20h 40m
American Airlines
Tue 6/1015:14
ORD
-
SYD
2 stops25h 56m
American Airlines
Deal found 8/6$1,548
Sat 19/909:10
SYD
-
ORD
1 stop29h 20m
American Airlines
Sat 3/1016:53
ORD
-
SYD
1 stop22h 02m
American Airlines
Deal found 6/6$1,588
Sat 10/1010:15
SYD
-
ORD
1 stop23h 06m
Delta
Sat 31/1008:55
ORD
-
SYD
2 stops30h 35m
Delta
Deal found 7/6$1,592

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 8 June 2026.

Round-trip from

$1,436

One-way from

$897

Popular in

January

Cheapest in

September

Average price

$1,669
American Airlines
  • American Airlines
  • 22/9-29/9
  • 2 total stops
  • 50h 10m total
  • Sydney to Chicago
Search Deals
Delta
  • Delta
  • 10/9
  • 1 total stop
  • 19h 45m total
  • Sydney to Chicago
Search Deals
Highest demand for flights based on searches. 28% potential increase in price ($1,064 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 12% potential price decrease ($297 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

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 8 June 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 return flight

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Sat 10/10

10:15-20:24

2 stops26h 09m

Chicago O'Hare Intl

Sat 31/10

15:50-07:30

2 stops23h 40m

$1,592

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Tue 21/7

10:20-07:30

2 stops36h 10m

Chicago O'Hare Intl

Thu 23/7

07:00-07:00

1 stop33h 00m

$1,896

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Thu 1/10

09:15-20:55

2 stops26h 40m

Chicago O'Hare Intl

Fri 9/10

18:30-07:50

1 stop21h 20m

$1,971

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Sat 3/10

20:45-06:20

3 stops24h 35m

Chicago O'Hare Intl

Tue 13/10

19:16-18:50

2 stops31h 34m

$2,064

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Tue 25/8

20:45-06:20

3 stops24h 35m

Chicago O'Hare Intl

Tue 1/9

15:43-18:50

2 stops36h 07m

$2,136

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Mon 13/7

09:20-05:40

1 stop35h 20m

Chicago O'Hare Intl

Wed 22/7

15:40-07:20

1 stop24h 40m

$2,355
Fastest return journey

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Tue 23/6

09:30-17:05

2 stops22h 35m

Chicago O'Hare Intl

Wed 29/7

16:45-06:55

2 stops23h 10m

$2,390

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Thu 5/11

21:40-14:30

1 stop33h 50m

Chicago O'Hare Intl

Mon 9/11

18:50-06:50

1 stop43h 00m

$2,397

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Thu 18/6

09:15-21:25

2 stops27h 10m

Chicago O'Hare Intl

Tue 7/7

07:45-06:50

2 stops32h 05m

$2,403

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Mon 22/6

09:15-23:18

1 stop29h 03m

Chicago O'Hare Intl

Sun 19/7

07:29-06:50

1 stop32h 21m

$2,403

Flights are sorted by cheapest return flights first.

Deals found on 7/6

Showing 1-10 of 14 resultsSorted by cheapest first
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?

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 $1,330). Flying from Sydney to Chicago O'Hare Intl Airport in January is currently the most expensive (average of $4,188). 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 8 June 2026.
Check out reviews from past customers who have flown with ANA,Air New Zealand, andQantas Airways 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.
ANA
8.3
Very Good
1,228 reviews
Check prices

Entertainment

7.9

Comfort

8.2

Crew

8.7

Overall

8.3

Food

7.7

Boarding

8.5

Reviews

1 / 20
4.0
Okay

PeggyLee,June 2026

BKK - NRT

It was unexpectedly below the expectation from the overall atmosphere of older plane, older seats, and most disappointment probably the meals. Will not be booking ANA again.
ANA
8.3
Very Good
1,228 reviews
ANA
8.3
Very Good
1,228 reviews
Check prices

Entertainment

7.9

Comfort

8.2

Crew

8.7

Overall

8.3

Food

7.7

Boarding

8.5

Reviews

1 / 20
4.0
Okay

PeggyLee,June 2026

BKK - NRT

It was unexpectedly below the expectation from the overall atmosphere of older plane, older seats, and most disappointment probably the meals. Will not be booking ANA again.
Air New Zealand
8.0
Very Good
645 reviews
ANA
8.3
Very Good
1,228 reviews
Check prices

Entertainment

7.9

Comfort

8.2

Crew

8.7

Overall

8.3

Food

7.7

Boarding

8.5

Reviews

1 / 20
4.0
Okay

PeggyLee,June 2026

BKK - NRT

It was unexpectedly below the expectation from the overall atmosphere of older plane, older seats, and most disappointment probably the meals. Will not be booking ANA again.
Qantas Airways
7.5
Good
1,045 reviews
ANA
8.3
Very Good
1,228 reviews
Check prices

Entertainment

7.9

Comfort

8.2

Crew

8.7

Overall

8.3

Food

7.7

Boarding

8.5

Reviews

1 / 20
4.0
Okay

PeggyLee,June 2026

BKK - NRT

It was unexpectedly below the expectation from the overall atmosphere of older plane, older seats, and most disappointment probably the meals. Will not be booking ANA again.
United Airlines
7.4
Good
9,785 reviews
ANA
8.3
Very Good
1,228 reviews
Check prices

Entertainment

7.9

Comfort

8.2

Crew

8.7

Overall

8.3

Food

7.7

Boarding

8.5

Reviews

1 / 20
4.0
Okay

PeggyLee,June 2026

BKK - NRT

It was unexpectedly below the expectation from the overall atmosphere of older plane, older seats, and most disappointment probably the meals. Will not be booking ANA again.
Air Canada
7.1
Good
11,147 reviews
ANA
8.3
Very Good
1,228 reviews
Check prices

Entertainment

7.9

Comfort

8.2

Crew

8.7

Overall

8.3

Food

7.7

Boarding

8.5

Reviews

1 / 20
4.0
Okay

PeggyLee,June 2026

BKK - NRT

It was unexpectedly below the expectation from the overall atmosphere of older plane, older seats, and most disappointment probably the meals. Will not be booking ANA again.

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 26h 09m. Fly via Delta or United Airlines to get the fastest option. Airlines will cover a distance of 14851 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    Air Canada, at $1,075, was found to be the cheapest airline from Sydney to Chicago O'Hare Intl Airport.Alternate airlines to your destination round-trip include Qantas Airways and American Airlines. These flights start at 43% 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 $1,330). Flying from Sydney to Chicago O'Hare Intl Airport in January is currently the most expensive (average of $4,188). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 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 8 June 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$1,075Average$1,745FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Qantas AirwaysCheapest$1,252Average$1,674FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
American AirlinesCheapest$1,254Average$1,724FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Air New ZealandCheapest$1,343Average$1,501FlexibilityNo cancel feeOn-time78%
Search Air New Zealand flights
United AirlinesCheapest$1,403Average$1,941FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
ANACheapest$1,517Average$1,756FlexibilityNo cancel feeOn-time80%
Search ANA flights

Fly with Cheapflights

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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.

Can Cheapflights notify me if prices for flights from Sydney to O'Hare Intl become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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