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Cheap flights from Sydney to Chicago O'Hare Intl Airport from $920

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 15/1. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — ORD
3 Feb — 10 Feb1
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 4 January 2026.

Mon 23/210:40SYD - ORD
2 stops30h 16mDelta
Mon 16/313:57ORD - SYD
2 stops25h 28mDelta
Deal found 2/1$1,456
Mon 2/210:40SYD - ORD
2 stops23h 15mDelta
Mon 16/215:59ORD - SYD
2 stops23h 31mDelta
Deal found 4/1$1,460
Tue 14/409:15SYD - ORD
2 stops23h 49mDelta
Thu 30/410:45ORD - SYD
2 stops28h 50mDelta
Deal found 3/1$1,510
Mon 2/211:20SYD - ORD
2 stops37h 45mAir Canada
Mon 16/213:05ORD - SYD
1 stop27h 30mAir Canada
Deal found 4/1$1,518
Thu 5/211:20SYD - ORD
1 stop20h 21mAir Canada
Mon 9/210:35ORD - SYD
2 stops30h 00mAir Canada
Deal found 3/1$1,521
Mon 23/211:20SYD - ORD
1 stop20h 21mAir Canada
Mon 16/315:35ORD - SYD
1 stop25h 00mAir Canada
Deal found 2/1$1,535
Thu 5/214:15SYD - ORD
2 stops24h 37mDelta
Wed 25/212:29ORD - SYD
2 stops27h 01mDelta
Deal found 2/1$1,556

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 4 January 2026.

Round-trip from

$1,456

One-way from

$920

Popular in

December

Cheapest in

February

Average price

$1,707
Delta
  • Delta
  • 23/2-16/3
  • 4 total stops
  • 55h 44m total
  • Sydney to Chicago
Search Deals
Delta
  • Delta
  • 15/1
  • 2 total stops
  • 27h 25m total
  • Sydney to Chicago
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($515 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($86 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 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 4 January 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 14/4

09:15-18:04

2 stops23h 49m

Chicago O'Hare Intl

Thu 30/4

10:45-06:35

2 stops28h 50m

$1,510

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Thu 5/2

11:20-08:05

3 stops37h 45m

Chicago O'Hare Intl

Mon 9/2

08:45-09:35

2 stops31h 50m

$1,533

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Thu 5/2

14:15-21:52

2 stops24h 37m

Chicago O'Hare Intl

Wed 25/2

12:29-08:30

2 stops27h 01m

$1,556

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Sat 17/1

10:40-16:44

2 stops23h 04m

Chicago O'Hare Intl

Fri 30/1

19:59-06:50

2 stops41h 51m

$1,560

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Fri 16/1

10:40-17:44

2 stops24h 04m

Chicago O'Hare Intl

Fri 30/1

11:15-08:30

2 stops28h 15m

$1,560

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Fri 23/1

10:40-17:44

2 stops24h 04m

Chicago O'Hare Intl

Sat 7/2

11:45-06:50

2 stops26h 05m

$1,560

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Sat 17/1

14:15-21:05

2 stops23h 50m

Chicago O'Hare Intl

Sat 31/1

07:05-06:50

2 stops30h 45m

$1,560

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Sat 16/5

09:15-23:55

2 stops29h 40m

Chicago O'Hare Intl

Sat 6/6

15:50-06:35

2 stops23h 45m

$1,560

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Thu 22/1

08:30-14:41

2 stops23h 11m

Chicago O'Hare Intl

Fri 6/2

13:13-09:35

2 stops27h 22m

$1,636

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Wed 18/2

11:20-14:41

1 stop20h 21m

Chicago O'Hare Intl

Sun 22/2

20:40-09:35

2 stops43h 55m

$1,680

Flights are sorted by cheapest return flights first.

Deals found on 2/1

Showing 1-10 of 21 results
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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 2 January 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 $926). Flying from Sydney to Chicago O'Hare Intl Airport in December is currently the most expensive (average of $1,544). 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 4 January 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.
Air New Zealand
8.0
Very Good
564 reviews
Check prices

Food

7.4

Overall

8.0

Crew

8.5

Entertainment

7.4

Comfort

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

BNE - AKL

I couldn’t operate reclining the seat. Neither could the passenger next to mec or the passenger across the aisle. This was in premium economy. We all tried following screen instructions but had no luck. Not really a problem on a 3 hour flight but any longer………
Air New Zealand
8.0
Very Good
564 reviews
Air New Zealand
8.0
Very Good
564 reviews
Check prices

Food

7.4

Overall

8.0

Crew

8.5

Entertainment

7.4

Comfort

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

BNE - AKL

I couldn’t operate reclining the seat. Neither could the passenger next to mec or the passenger across the aisle. This was in premium economy. We all tried following screen instructions but had no luck. Not really a problem on a 3 hour flight but any longer………
Qantas Airways
7.5
Good
963 reviews
Air New Zealand
8.0
Very Good
564 reviews
Check prices

Food

7.4

Overall

8.0

Crew

8.5

Entertainment

7.4

Comfort

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

BNE - AKL

I couldn’t operate reclining the seat. Neither could the passenger next to mec or the passenger across the aisle. This was in premium economy. We all tried following screen instructions but had no luck. Not really a problem on a 3 hour flight but any longer………
United Airlines
7.4
Good
9,138 reviews
Air New Zealand
8.0
Very Good
564 reviews
Check prices

Food

7.4

Overall

8.0

Crew

8.5

Entertainment

7.4

Comfort

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

BNE - AKL

I couldn’t operate reclining the seat. Neither could the passenger next to mec or the passenger across the aisle. This was in premium economy. We all tried following screen instructions but had no luck. Not really a problem on a 3 hour flight but any longer………
American Airlines
7.2
Good
11,082 reviews
Air New Zealand
8.0
Very Good
564 reviews
Check prices

Food

7.4

Overall

8.0

Crew

8.5

Entertainment

7.4

Comfort

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

BNE - AKL

I couldn’t operate reclining the seat. Neither could the passenger next to mec or the passenger across the aisle. This was in premium economy. We all tried following screen instructions but had no luck. Not really a problem on a 3 hour flight but any longer………
Air Canada
7.1
Good
10,589 reviews
Air New Zealand
8.0
Very Good
564 reviews
Check prices

Food

7.4

Overall

8.0

Crew

8.5

Entertainment

7.4

Comfort

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

BNE - AKL

I couldn’t operate reclining the seat. Neither could the passenger next to mec or the passenger across the aisle. This was in premium economy. We all tried following screen instructions but had no luck. Not really a problem on a 3 hour flight but any longer………

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. 7 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 23h 49m. Fly via Delta or Air Canada 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?

    Qantas Airways, at $978, was found to be the cheapest airline from Sydney to Chicago O'Hare Intl Airport.Alternate airlines to your destination round-trip include American Airlines and Air Canada. These flights start at 31% 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 $926). Flying from Sydney to Chicago O'Hare Intl Airport in December is currently the most expensive (average of $1,544). 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

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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 7 airlines flying from Sydney to O'Hare Intl

Discover the top 7 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 4 January 2026.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$977Average$1,114FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
American AirlinesCheapest$1,164Average$1,213FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Air CanadaCheapest$1,167Average$1,622FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Air New ZealandCheapest$1,413Average$1,577FlexibilityNo cancel feeOn-time78%
Search Air New Zealand flights
United AirlinesCheapest$1,476Average$2,259FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
ANACheapest$1,569Average$1,693FlexibilityNo cancel feeOn-time80%
Search ANA flights
Virgin AustraliaCheapest$1,720Average$2,789FlexibilityNo cancel feeOn-time80%
Search Virgin Australia 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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