Cheap flights from Sydney to Chicago O'Hare Intl Airport from $793

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 15/10. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — ORD
23 7月 — 30 7月1
1 adult

Cheapflights Tip: The best prices from Sydney Kingsford Smith to Chicago O'Hare Intl are usually found in February or May, booked 28 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 18 7月 2025.

Round-trip from

$1,502

One-way from

$793

Popular in

December

Cheapest in

February

Average price

$1,299
United Airlines
  • United Airlines
  • 9/9-9/9
  • 3 total stops
  • 65h 59m total
  • Sydney to Chicago
15/10
  • 15/10
  • 2 total stops
  • 29h 04m total
  • Sydney to Chicago
Highest demand for flights based on searches. 21% potential increase in price ($646 potential increase over avg. return price).
Cheapest flight prices on average. 6% potential price decrease ($152 potential savings vs. average return price).
Average for round-trip flights in July 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 18 7月 2025.

週三 20/813:15SYD - ORD
2 stops31h 25mMultiple Airlines
週一 25/807:05ORD - SYD
2 stops37h 40mMultiple Airlines
Deal found 18/7$1,425
週二 9/910:20SYD - ORD
2 stops23h 17mUnited Airlines
週二 9/921:13ORD - SYD
1 stop42h 42mUnited Airlines
Deal found 16/7$1,502
週二 29/711:50SYD - ORD
2 stops26h 22mAir New Zealand
週四 7/816:50ORD - SYD
2 stops24h 55mAir New Zealand
Deal found 17/7$1,620
週一 1/920:55SYD - ORD
2 stops47h 04mANA
週一 8/917:45ORD - SYD
1 stop34h 30mANA
Deal found 18/7$1,661
週日 10/809:10SYD - ORD
1 stop22h 38mAmerican Airlines
週日 24/815:56ORD - SYD
2 stops24h 09mAmerican Airlines
Deal found 18/7$1,735
週二 7/1010:20SYD - ORD
1 stop22h 22mAir Canada
週二 28/1015:40ORD - SYD
1 stop24h 55mAir Canada
Deal found 18/7$1,957

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 18 7月 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

週三 20/8

13:15-05:40

2 stops31h 25m

Chicago O'Hare Intl

週一 25/8

07:05-11:45

2 stops37h 40m

$1,425

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

週二 9/9

10:20-18:37

2 stops23h 17m

Chicago O'Hare Intl

週二 9/9

21:13-06:55

1 stop42h 42m

$1,502

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

週二 29/7

11:50-23:12

2 stops26h 22m

Chicago O'Hare Intl

週四 7/8

16:50-08:45

2 stops24h 55m

$1,620

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

週一 1/9

20:55-04:59

2 stops47h 04m

Chicago O'Hare Intl

週一 8/9

17:45-19:15

1 stop34h 30m

$1,661

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

週日 10/8

09:10-16:48

1 stop22h 38m

Chicago O'Hare Intl

週日 24/8

15:56-07:05

2 stops24h 09m

$1,735

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

週二 7/10

10:20-16:42

1 stop22h 22m

Chicago O'Hare Intl

週二 28/10

15:40-08:35

1 stop24h 55m

$1,957

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

週三 15/10

17:20-06:24

2 stops29h 04m

$793

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

週六 15/11

12:10-19:01

2 stops23h 51m

$973

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

週五 17/10

21:30-08:45

1 stop51h 15m

$1,024

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

週日 17/8

09:10-16:48

1 stop22h 38m

$1,080

Flights are sorted by cheapest return flights first.

Deals found on 15/7

Showing 1-10 of 11 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 July 2025.

The best time to book flights from Sydney to Chicago O'Hare Intl Airport is 28 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 18 7月 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.

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 18 7月 2025.
Check out reviews from past customers who have flown with ANA, Singapore Airlines, andDelta 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.

Overall

8.4

Comfort

8.2

Crew

8.7

Food

7.7

Boarding

8.5

Entertainment

7.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,July 2025

MNL - NRT

Flight delayed from 7pm to 2am, united airlines sold our tickets so they had to book us with AA
8.4
Very Good

Overall

8.4

Comfort

8.2

Crew

8.7

Food

7.7

Boarding

8.5

Entertainment

7.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,July 2025

MNL - NRT

Flight delayed from 7pm to 2am, united airlines sold our tickets so they had to book us with AA

Overall

8.4

Comfort

8.2

Crew

8.7

Food

7.7

Boarding

8.5

Entertainment

7.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,July 2025

MNL - NRT

Flight delayed from 7pm to 2am, united airlines sold our tickets so they had to book us with AA
8.0
Very Good

Overall

8.4

Comfort

8.2

Crew

8.7

Food

7.7

Boarding

8.5

Entertainment

7.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,July 2025

MNL - NRT

Flight delayed from 7pm to 2am, united airlines sold our tickets so they had to book us with AA

Overall

8.4

Comfort

8.2

Crew

8.7

Food

7.7

Boarding

8.5

Entertainment

7.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,July 2025

MNL - NRT

Flight delayed from 7pm to 2am, united airlines sold our tickets so they had to book us with AA

Overall

8.4

Comfort

8.2

Crew

8.7

Food

7.7

Boarding

8.5

Entertainment

7.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,July 2025

MNL - NRT

Flight delayed from 7pm to 2am, united airlines sold our tickets so they had to book us with AA

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?

    United Airlines, 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 New Zealand and ANA. These flights start at 4% 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?

    $1,030 is the cheapest one-way deal found within the past few days, from Etihad Airways. You may also be able to find cheap deals on American Airlines and Air Canada, with prices starting from $1,080 and $1,337, 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 18 7月 2025.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$1,019Average$1,211FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
American AirlinesCheapest$1,203Average$1,255FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Air CanadaCheapest$1,283Average$1,727FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Air New ZealandCheapest$1,572Average$1,620FlexibilityNo cancel feeOn-time78%
Search Air New Zealand flights
ANACheapest$1,619Average$1,797FlexibilityNo cancel feeOn-time80%
Search ANA flights
United AirlinesCheapest$1,703Average$2,439FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Virgin AustraliaCheapest$1,777Average$2,810FlexibilityNo cancel feeOn-time80%
Search Virgin Australia 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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