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Cheap flights from Sydney to Chicago O'Hare Intl Airport from $792

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 28/4. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — ORD
20 Apr — 27 Apr1
1 adult

Cheapflights Tip: The best prices from Sydney Kingsford Smith to Chicago O'Hare Intl are usually found in February or March, booked 90 days in advance, depart on a Monday or Thursday and return on a Friday

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 15 April 2025.

Round-trip from

$1,599

One-way from

$792

Popular in

December

Cheapest in

February

Average price

$1,724
30/5-6/6
  • 30/5-6/6
  • 4 total stops
  • 58h 13m total
  • Sydney to Chicago
28/4
  • 28/4
  • 3 total stops
  • 34h 20m total
  • Sydney to Chicago
Highest demand for flights based on searches. 16% potential increase in price ($522 potential increase over avg. return price).
Cheapest flight prices on average. 5% potential price decrease ($132 potential savings vs. average return price).
Average for round-trip flights in April 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 15 April 2025.

Fri 30/513:15SYD - ORD
2 stops32h 27mMultiple Airlines
Fri 6/618:59ORD - SYD
2 stops25h 46mMultiple Airlines
Deal found 15/4$1,599
Tue 24/617:10SYD - ORD
2 stops37h 34mQantas Airways
Sun 6/708:50ORD - SYD
2 stops34h 30mQantas Airways
Deal found 14/4$1,708
Tue 20/511:50SYD - ORD
2 stops32h 14mANA
Thu 28/817:45ORD - SYD
1 stop34h 30mANA
Deal found 14/4$1,792
Wed 11/609:20SYD - ORD
2 stops43h 41mAir Canada
Sun 14/1213:00ORD - SYD
2 stops51h 35mAir Canada
Deal found 15/4$1,936
Mon 23/609:30SYD - ORD
1 stop20h 09mUnited Airlines
Mon 7/715:35ORD - SYD
1 stop24h 25mUnited Airlines
Deal found 14/4$2,087
Tue 8/710:10SYD - ORD
1 stop43h 15mCathay Pacific
Thu 17/716:00ORD - SYD
1 stop27h 50mCathay Pacific
Deal found 14/4$2,098
Mon 7/709:25SYD - ORD
2 stops23h 40mDelta
Wed 30/715:35ORD - SYD
2 stops24h 00mDelta
Deal found 14/4$2,104
Mon 23/609:10SYD - ORD
2 stops30h 22mAmerican Airlines
Sat 5/720:40ORD - SYD
1 stop43h 25mAmerican Airlines
Deal found 14/4$2,214
Thu 29/508:55SYD - ORD
2 stops28h 37mJapan Airlines
Wed 4/601:30ORD - SYD
1 stop37h 50mJapan Airlines
Deal found 13/4$2,541

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 15 April 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

Fri 30/5

13:15-06:42

2 stops32h 27m

Chicago O'Hare Intl

Fri 6/6

18:59-11:45

2 stops25h 46m

$1,599

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Tue 24/6

17:10-15:44

2 stops37h 34m

Chicago O'Hare Intl

Sun 6/7

08:50-10:20

2 stops34h 30m

$1,708

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Tue 20/5

11:50-05:04

2 stops32h 14m

Chicago O'Hare Intl

Thu 28/8

17:45-19:15

1 stop34h 30m

$1,792

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Wed 11/6

09:20-14:01

2 stops43h 41m

Chicago O'Hare Intl

Sun 14/12

13:00-09:35

2 stops51h 35m

$1,936

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Mon 23/6

09:30-14:39

1 stop20h 09m

Chicago O'Hare Intl

Mon 7/7

15:35-07:00

1 stop24h 25m

$2,087

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Tue 8/7

10:10-14:25

1 stop43h 15m

Chicago O'Hare Intl

Thu 17/7

16:00-10:50

1 stop27h 50m

$2,098

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Mon 7/7

09:25-18:05

2 stops23h 40m

Chicago O'Hare Intl

Wed 30/7

15:35-06:35

2 stops24h 00m

$2,104

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Mon 23/6

09:10-00:32

2 stops30h 22m

Chicago O'Hare Intl

Sat 5/7

20:40-07:05

1 stop43h 25m

$2,214

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Tue 20/5

08:55-22:32

2 stops28h 37m

Chicago O'Hare Intl

Wed 27/8

01:30-06:20

1 stop37h 50m

$2,221

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Mon 28/4

13:15-08:35

3 stops34h 20m

$792

Flights are sorted by cheapest return flights first.

Deals found on 14/4

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 11 April 2025.

The best time to book flights from Sydney to Chicago O'Hare Intl Airport is 90 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 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 15 April 2025.

It’s optimal to fly from Sydney to Chicago O'Hare Intl Airport in the afternoon. By choosing this option you can save up to 12% on the cost of your flight, compared to a flight in the morning.

What is the cheapest day to fly from Sydney to Chicago O'Hare Intl Airport?

Use this chart to determine the cheapest time to fly return from Sydney to O'Hare Intl. Price data was last updated on 16 December 2024.

Travellers seeking maximum savings on their Sydney to Chicago O'Hare Intl Airport flight should consider departing on Thursday afternoons when fares are most often at their lowest. Thursday at midday flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in O'Hare Intl by month

Plan your trip to O'Hare Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Chicago O'Hare Intl Airport ranges from 43.0 - 125.0 inches per month. August is typically the wettest month, when rainfall can reach 125.0 mm. January is typically the driest time to visit Chicago O'Hare Intl Airport when rainfall is around 43.0 mm.

Temperature in O'Hare Intl by month

Plan your trip to O'Hare Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Chicago O'Hare Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -5.0 C).

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 15 April 2025.
Get a feel of what it's like to fly with Air Tahiti Nui, Korean Air and Japan Airlines from Sydney to Chicago by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Food

7.8

Boarding

8.7

Overall

8.8

Comfort

8.1

Entertainment

7.3

Crew

9.1

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

Food

7.8

Boarding

8.7

Overall

8.8

Comfort

8.1

Entertainment

7.3

Crew

9.1

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

Food

7.8

Boarding

8.7

Overall

8.8

Comfort

8.1

Entertainment

7.3

Crew

9.1

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

Food

7.8

Boarding

8.7

Overall

8.8

Comfort

8.1

Entertainment

7.3

Crew

9.1

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
8.3
Very Good

Food

7.8

Boarding

8.7

Overall

8.8

Comfort

8.1

Entertainment

7.3

Crew

9.1

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
8.0
Very Good

Food

7.8

Boarding

8.7

Overall

8.8

Comfort

8.1

Entertainment

7.3

Crew

9.1

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

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.

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

    Qantas Airways, at $1,708, was found to be the cheapest airline from Sydney to Chicago O'Hare Intl Airport.Alternate airlines to your destination round-trip include ANA and Air Canada.

  • What are the cheapest airlines to fly from Sydney to Chicago O'Hare Intl Airport one-way?

    $1,252 is the cheapest one-way deal found within the past few days, from Air Canada. You may also be able to find cheap deals on Cathay Pacific and Air Tahiti Nui, with prices starting from $1,311 and $1,667, respectively.

  • 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.

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 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 15 April 2025.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$1,051Average$1,498FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Air CanadaCheapest$1,317Average$1,770FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
American AirlinesCheapest$1,561Average$1,740FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
United AirlinesCheapest$1,608Average$2,371FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
ANACheapest$1,738Average$2,236FlexibilityNo cancel feeOn-time80%
Search ANA flights
Virgin AustraliaCheapest$1,757Average$2,738FlexibilityNo cancel feeOn-time80%
Search Virgin Australia flights
DeltaCheapest$1,851Average$1,985FlexibilityNo cancel feeOn-timeN/A
Search Delta flights

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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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