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Cheap flights from Sydney to Chicago O'Hare Intl Airport from $846

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 1/6. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — ORD
30 Mar — 6 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 25 March 2025.

Round-trip from

$1,502

One-way from

$846

Popular in

December

Cheapest in

February

Average price

$1,409
Iberia
  • Iberia
  • 28/4-11/5
  • 2 total stops
  • 64h 44m total
  • Sydney to Chicago
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Air Canada
  • Air Canada
  • 1/6
  • 2 total stops
  • 37h 39m total
  • Sydney to Chicago
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Highest demand for flights based on searches. 13% potential increase in price ($448 potential increase over avg. return price).
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Cheapest flight prices on average. 4% potential price decrease ($128 potential savings vs. average return 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 25 March 2025.

Tue 5/809:20SYD - ORD
2 stops25h 09mAir Canada
Wed 13/810:40ORD - SYD
2 stops29h 40mAir Canada
Deal found 24/3$1,323
Mon 28/409:10SYD - ORD
1 stop35h 04mIberia
Sun 11/510:15ORD - SYD
1 stop29h 40mIberia
Deal found 24/3$1,502
Wed 21/509:10SYD - ORD
1 stop21h 45mQantas Airways
Wed 28/519:13ORD - SYD
1 stop20h 52mQantas Airways
Deal found 23/3$1,624
Wed 30/417:45SYD - ORD
2 stops27h 20mMultiple Airlines
Sun 18/509:55ORD - SYD
1 stop30h 10mMultiple Airlines
Deal found 25/3$1,688
Mon 28/417:45SYD - ORD
1 stop21h 14mAmerican Airlines
Sun 11/515:00ORD - SYD
2 stops25h 05mAmerican Airlines
Deal found 24/3$1,715
Mon 31/311:20SYD - ORD
1 stop34h 48mUnited Airlines
Mon 7/415:50ORD - SYD
2 stops24h 05mUnited Airlines
Deal found 24/3$1,726
Tue 20/509:25SYD - ORD
2 stops22h 20mDelta
Wed 4/611:07ORD - SYD
2 stops28h 28mDelta
Deal found 24/3$1,740
Thu 29/508:55SYD - ORD
2 stops49h 43mJapan Airlines
Wed 4/601:30ORD - SYD
1 stop37h 50mJapan Airlines
Deal found 24/3$2,152
Tue 1/412:50SYD - ORD
2 stops46h 49mANA
Thu 8/517:45ORD - SYD
1 stop24h 40mANA
Deal found 24/3$2,410
Fri 4/415:05SYD - ORD
1 stop39h 20mCathay Pacific
Sat 26/416:00ORD - SYD
1 stop47h 10mCathay Pacific
Deal found 24/3$2,489
Sun 22/620:55SYD - ORD
2 stops36h 00mTurkish Airlines
Fri 4/711:25ORD - SYD
2 stops40h 35mTurkish Airlines
Deal found 24/3$2,992

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 25 March 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

Tue 5/8

09:20-14:49

1 stop20h 29m

Chicago O'Hare Intl

Wed 13/8

08:50-07:20

2 stops31h 30m

$1,323

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Mon 28/4

09:10-05:14

1 stop35h 04m

Chicago O'Hare Intl

Sun 11/5

10:15-06:55

1 stop29h 40m

$1,502

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Wed 21/5

09:10-15:55

1 stop21h 45m

Chicago O'Hare Intl

Wed 28/5

19:13-07:05

1 stop20h 52m

$1,624

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Wed 30/4

17:45-06:05

2 stops27h 20m

Chicago O'Hare Intl

Sun 18/5

09:55-07:05

1 stop30h 10m

$1,688

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Mon 28/4

17:45-23:59

1 stop21h 14m

Chicago O'Hare Intl

Sun 11/5

15:00-07:05

2 stops25h 05m

$1,715

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Tue 20/5

10:20-17:00

2 stops21h 40m

Chicago O'Hare Intl

Sun 1/6

16:40-07:00

1 stop23h 20m

$1,726

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Tue 20/5

09:25-20:21

2 stops25h 56m

Chicago O'Hare Intl

Mon 2/6

15:33-06:35

2 stops24h 02m

$1,740

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Thu 29/5

08:55-19:38

2 stops49h 43m

Chicago O'Hare Intl

Wed 4/6

01:30-06:20

1 stop37h 50m

$2,152

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Fri 4/4

15:05-14:25

1 stop39h 20m

Chicago O'Hare Intl

Sat 26/4

16:00-06:10

1 stop47h 10m

$2,489

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Sun 22/6

20:55-17:55

2 stops36h 00m

Chicago O'Hare Intl

Fri 4/7

11:25-19:00

2 stops40h 35m

$2,992

Flights are sorted by cheapest return flights first.

Deals found on 24/3

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 21 March 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 25 March 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 25 March 2025.
Get a feel of what it's like to fly with Air Tahiti Nui, Japan Airlines and ANA 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.
Air Tahiti Nui
8.7
Very Good
61 reviews
Check prices

Overall

8.7

Entertainment

7.2

Comfort

8.0

Crew

9.1

Food

7.8

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
Check prices

Overall

8.7

Entertainment

7.2

Comfort

8.0

Crew

9.1

Food

7.8

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
1,440 reviews
Air Tahiti Nui
8.7
Very Good
61 reviews
Check prices

Overall

8.7

Entertainment

7.2

Comfort

8.0

Crew

9.1

Food

7.8

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
8.3
Very Good
826 reviews
Air Tahiti Nui
8.7
Very Good
61 reviews
Check prices

Overall

8.7

Entertainment

7.2

Comfort

8.0

Crew

9.1

Food

7.8

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
7,890 reviews
Air Tahiti Nui
8.7
Very Good
61 reviews
Check prices

Overall

8.7

Entertainment

7.2

Comfort

8.0

Crew

9.1

Food

7.8

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.
Qantas Airways
7.5
Good
809 reviews
Air Tahiti Nui
8.7
Very Good
61 reviews
Check prices

Overall

8.7

Entertainment

7.2

Comfort

8.0

Crew

9.1

Food

7.8

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?

    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. 9 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?

    Iberia, at $1,502, 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 Qantas Airways. These flights start at 14% 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?

    $846 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 United Airlines, with prices starting from $1,319 and $1,327, 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.

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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 9 airlines flying from Sydney to O'Hare Intl

Discover the top 9 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 25 March 2025.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$1,057Average$1,526FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Air CanadaCheapest$1,414Average$1,825FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
ANACheapest$1,555Average$2,161FlexibilityNo cancel feeOn-time80%
Search ANA flights
American AirlinesCheapest$1,568Average$1,750FlexibilityNo cancel feeOn-time71%
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United AirlinesCheapest$1,615Average$2,425FlexibilityNo cancel feeOn-time69%
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Air New ZealandCheapest$1,631Average$1,968FlexibilityNo cancel feeOn-time78%
Search Air New Zealand flights
Virgin AustraliaCheapest$1,765Average$2,751FlexibilityNo cancel feeOn-time80%
Search Virgin Australia flights
DeltaCheapest$1,860Average$1,994FlexibilityNo cancel feeOn-timeN/A
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Cathay PacificCheapest$1,908Average$2,272FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights

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

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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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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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