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O'Hare Intl

$432+ 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 4/9. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — ORD
Mar 9 — Mar 161
Sun 3/9
Sun 3/16
1 adult, Economy
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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 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 March 4, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$699
(BestPriceTravel)

One-way from

$432
(BestPriceTravel)

Popular in

December

Cheapest in

February

Average price

$892
Provider with most accurate pricing for Sydney Kingsford Smith-Chicago O'Hare Intl flight deals.
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Provider most trusted by Cheapflights users for Sydney Kingsford Smith-Chicago O'Hare Intl flights.
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From Sydney Kingsford Smith to Chicago O'Hare Intl
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One-way flight from Sydney Kingsford Smith to Chicago O'Hare Intl
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Highest demand for flights based on searches. 12% potential increase in price ($158 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($48 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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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 March 4, 2025.

This BestPriceTravel deal was found by Cheapflights users on 3/3. 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 BestPriceTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/79:10 amSYD - ORD
1 stop22h 57mQantas Airways
Wed 10/12:42 pmORD - SYD
1 stop25h 23mQantas Airways
Deal found 3/3$697
This Qantas Airways deal was found by Cheapflights users on 3/2. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/38:05 pmSYD - ORD
2 stops27h 09mMultiple Airlines
Sat 8/166:15 pmORD - SYD
1 stop21h 50mMultiple Airlines
Deal found 3/2$840
This American Airlines deal was found by Cheapflights users on 3/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/711:15 amSYD - ORD
1 stop29h 42mAmerican Airlines
Sun 3/97:17 pmORD - SYD
1 stop21h 43mAmerican Airlines
Deal found 3/3$880
This Air Canada deal was found by Cheapflights users on 3/3. 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.
Tue 3/1810:25 amSYD - ORD
2 stops22h 45mAir Canada
Tue 4/157:20 amORD - SYD
3 stops33h 00mAir Canada
Deal found 3/3$1,079
This BYOjet deal was found by Cheapflights users on 3/3. 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.
Mon 7/1411:30 amSYD - ORD
2 stops26h 29mAir New Zealand
Wed 8/63:35 pmORD - SYD
2 stops26h 10mAir New Zealand
Deal found 3/3$1,093
This United Airlines deal was found by Cheapflights users on 3/4. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2210:20 amSYD - ORD
1 stop19h 35mUnited Airlines
Sun 6/296:26 pmORD - SYD
1 stop21h 29mUnited Airlines
Deal found 3/4$1,311
This BestPriceTravel deal was found by Cheapflights users on 3/3. 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 BestPriceTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/111:15 amSYD - ORD
2 stops46h 35mFinnair
Thu 5/89:30 pmORD - SYD
2 stops40h 50mFinnair
Deal found 3/3$1,380
This BestPriceTravel deal was found by Cheapflights users on 3/4. 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 BestPriceTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/48:40 amSYD - ORD
1 stop45h 45mCathay Pacific
Sat 4/264:00 pmORD - SYD
1 stop27h 50mCathay Pacific
Deal found 3/4$1,390
This Globehunters deal was found by Cheapflights users on 3/2. 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 Globehunters is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/78:55 amSYD - ORD
1 stop39h 10mJapan Airlines
Tue 9/301:05 amORD - SYD
1 stop38h 15mJapan Airlines
Deal found 3/2$1,476
This BYOjet deal was found by Cheapflights users on 3/3. 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 7/411:50 amSYD - ORD
2 stops32h 11mANA
Sat 7/127:40 pmORD - SYD
2 stops32h 35mANA
Deal found 3/3$1,548
This Globehunters deal was found by Cheapflights users on 3/3. 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 Globehunters is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/110:15 pmSYD - ORD
2 stops46h 49mChina Southern
Thu 5/84:51 pmORD - SYD
3 stops59h 49mChina Southern
Deal found 3/3$1,671
This BYOjet deal was found by Cheapflights users on 3/3. 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.
Sun 9/73:00 pmSYD - ORD
3 stops42h 43mSingapore Airlines
Wed 10/19:00 pmORD - SYD
2 stops41h 55mSingapore Airlines
Deal found 3/3$1,696

Find flights from Sydney to O'Hare Intl within your budget

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 March 4, 2025.

Fly from

Sydney

Fly to

O'Hare Intl

Route

Depart

Return

Price

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Tue 4/15

9:10 am-5:24 pm

1 stop23h 14m

Chicago O'Hare Intl

Tue 4/29

5:30 pm-7:05 am

1 stop22h 35m

$699

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Tue 3/18

11:50 am-5:46 pm

2 stops21h 56m

Chicago O'Hare Intl

Tue 4/15

5:02 pm-7:05 am

2 stops23h 03m

$963

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Mon 3/17

10:25 am-4:37 pm

2 stops22h 12m

Chicago O'Hare Intl

Mon 3/24

4:00 pm-8:35 am

2 stops48h 35m

$1,069

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Mon 7/14

11:30 am-10:59 pm

2 stops26h 29m

Chicago O'Hare Intl

Wed 8/6

3:35 pm-8:45 am

2 stops26h 10m

$1,093

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Mon 3/17

2:00 pm-11:06 pm

2 stops25h 06m

Chicago O'Hare Intl

Mon 3/24

5:55 am-8:35 am

3 stops34h 40m

$1,167

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Thu 5/22

10:20 am-2:55 pm

1 stop19h 35m

Chicago O'Hare Intl

Sun 6/29

6:26 pm-6:55 am

1 stop21h 29m

$1,311

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Tue 4/1

11:15 am-5:50 pm

2 stops46h 35m

Chicago O'Hare Intl

Thu 5/8

9:30 pm-5:20 am

2 stops40h 50m

$1,380

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Fri 4/4

8:40 am-2:25 pm

1 stop45h 45m

Chicago O'Hare Intl

Sat 4/26

4:00 pm-10:50 am

1 stop27h 50m

$1,390

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Fri 7/4

11:50 am-5:01 am

2 stops32h 11m

Chicago O'Hare Intl

Sat 7/12

7:40 pm-7:15 pm

2 stops32h 35m

$1,548

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Mon 7/14

8:55 am-9:08 pm

2 stops51h 13m

Chicago O'Hare Intl

Tue 8/5

1:30 am-6:20 am

1 stop37h 50m

$1,556

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/3

Showing 1-10 of 22 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 March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice 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.

Travel insights for flights from Sydney to O'Hare Intl

Get recent, data-driven insights about flights from Sydney to O'Hare Intl including ideal travel times, pricing trends, and more.

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 February 28, 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 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 $322). 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 March 4, 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.

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 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Chicago O'Hare Intl Airport when rainfall is around 1.7 in.

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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

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 March 4, 2025.
Air Tahiti Nui
8.7
Very good
61 reviews

Crew

9.1

Comfort

8.0

Food

7.8

Entertainment

7.2

Overall

8.7

Boarding

8.7

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.

Air Tahiti Nui
8.7
Very good
61 reviews
Air Tahiti Nui
8.7
Very good
61 reviews

Crew

9.1

Comfort

8.0

Food

7.8

Entertainment

7.2

Overall

8.7

Boarding

8.7

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.

ANA
8.4
Very good
834 reviews
Air Tahiti Nui
8.7
Very good
61 reviews

Crew

9.1

Comfort

8.0

Food

7.8

Entertainment

7.2

Overall

8.7

Boarding

8.7

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.

Japan Airlines
8.3
Very good
1,435 reviews
Air Tahiti Nui
8.7
Very good
61 reviews

Crew

9.1

Comfort

8.0

Food

7.8

Entertainment

7.2

Overall

8.7

Boarding

8.7

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.

Emirates
8.1
Very good
3,236 reviews
Air Tahiti Nui
8.7
Very good
61 reviews

Crew

9.1

Comfort

8.0

Food

7.8

Entertainment

7.2

Overall

8.7

Boarding

8.7

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.

Delta
8.0
Very good
8,070 reviews
Air Tahiti Nui
8.7
Very good
61 reviews

Crew

9.1

Comfort

8.0

Food

7.8

Entertainment

7.2

Overall

8.7

Boarding

8.7

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?

    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 3 different airlines.

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

    According to our current data, Qantas Airways ($699), American Airlines ($963), and Air Canada ($1,069) offers the cheapest pricing from Sydney to Chicago O'Hare Intl Airport. These flights start at 37% lower than the current average price 3 months from now.

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

    $432 is the cheapest one-way deal found within the past few days, from Qantas Airways. You may also be able to find cheap deals on American Airlines and United Airlines, with prices starting from $474 and $827, 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 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 $322). 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.
Sydney to Midway flights

Top 3 airlines flying from Sydney to O'Hare Intl

Discover the top 3 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 March 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$631Average$762FlexibilityNo cancel feeOn-time74%
American AirlinesCheapest$884Average$1,296FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$964Average$1,593FlexibilityNo cancel feeOn-time69%
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