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

According to our current data, Qantas Airways ($1,311), Air Canada ($1,648), and Fiji Airways ($1,957) offers the cheapest pricing from Chicago O'Hare Intl Airport to Sydney. Users have found that Qantas Airways is 26% cheaper than the other options available to this destination. Find deals

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

To fly one-way, consider booking your trip with Fiji Airways, which is currently one of the cheapest options available, starting at $1,029. ANA flights start at $1,115 while deals on Alaska Airlines start at $1,185 one-way. Find deals

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

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

What are the most popular airlines that fly from Chicago O'Hare Intl Airport to Sydney?

When booking a flight from Chicago O'Hare Intl Airport to Sydney, you may want to consider flying on Air Canada, Qantas Airways or United Airlines as they are the most popular for this route.

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

Flights from Chicago O'Hare Intl Airport to Sydney are generally found to be more expensive on Wednesday. This shouldn't discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Sydney.

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

Due to multiple factors, expect to potentially pay more when booking in December. For low rates, August can be a great choice for travel to Sydney. Flights to Sydney from Chicago O'Hare Intl Airport in August are about $1,779 on average during August, but can be found for as low as $1,211.

What airport do you fly into for flights to Sydney from Chicago O'Hare Intl?

For a flight from Chicago O'Hare Intl to Sydney, you will be flying into Kingsford Smith. Sydney Kingsford Smith (SYD) is just 7.5 km from the centre vof the city. Kingsford Smith is the only Sydney airport and it handles 0 inbound flights from Chicago O'Hare Intl per day. 3 airlines have flights to Sydney Kingsford Smith from Chicago O'Hare Intl on a regular basis.

Can I find deals for flights from O'Hare Intl to Sydney that include hotel bookings?

Yes. In addition to deals on O'Hare Intl to Sydney flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from O'Hare Intl to Sydney?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from O'Hare Intl to Sydney.

Can I find deals for business class flights from O'Hare Intl to Sydney?

Yes. Cheapflights offers flight deals from O'Hare Intl to Sydney by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$687+ Flights from Chicago O'Hare Intl Airport to Sydney

Cheapflights Tip: The best prices from Chicago O'Hare Intl to Sydney Kingsford Smith are usually found in March or May, booked 13 days in advance, depart on a Friday or Sunday and return on a Monday

Cheap flight deals from O'Hare Intl to Sydney

Round-trip from	$1,311
One-way from	$687
Popular in	December
Cheapest in	March
Average price	$1,363

Qantas Airways
25/5-18/6
2 total stops
48h 22m total
Chicago to Sydney

Search Deals

5/4
2 total stops
38h 50m total
Chicago to Sydney

Search Deals

Highest demand for flights based on searches. 11% potential increase in price ($363 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($76 potential savings vs. average return price).

Search Deals

Average for round-trip flights in March 2025

Search Deals

Find flight deals from O'Hare Intl to Sydney

Cheapest flights from O'Hare Intl to Sydney
Explore the most affordable flight options available from O'Hare Intl to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 25 March 2025.

Sun 25/515:15ORD - SYD

1 stop25h 15mQantas Airways

Wed 18/609:10SYD - ORD

1 stop23h 07mQantas Airways

Deal found 24/3$1,311

Thu 1/511:53ORD - SYD

2 stops33h 22mMultiple Airlines

Fri 9/513:15SYD - ORD

2 stops32h 27mMultiple Airlines

Deal found 24/3$1,532

Wed 10/915:40ORD - SYD

1 stop24h 40mAir Canada

Wed 24/909:20SYD - ORD

2 stops25h 51mAir Canada

Deal found 25/3$1,648

Tue 4/1118:45ORD - SYD

2 stops24h 45mFiji Airways

Sat 15/1114:30SYD - ORD

2 stops23h 39mFiji Airways

Deal found 25/3$1,877

Sun 19/1017:45ORD - SYD

1 stop34h 30mANA

Sun 2/1121:45SYD - ORD

1 stop33h 05mANA

Deal found 25/3$1,930

Wed 22/1017:50ORD - SYD

2 stops33h 55mAlaska Airlines

Sat 1/1121:40SYD - ORD

2 stops23h 24mAlaska Airlines

Deal found 25/3$2,147

Best flights from O'Hare Intl to Sydney
Discover carefully curated flight deals from O'Hare Intl to Sydney that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 25 March 2025.

Sun 25/515:15ORD - SYD

1 stop25h 15mQantas Airways

Wed 18/609:10SYD - ORD

1 stop23h 07mQantas Airways

Deal found 24/3$1,311

Thu 1/511:53ORD - SYD

2 stops33h 22mMultiple Airlines

Fri 9/513:15SYD - ORD

2 stops32h 27mMultiple Airlines

Deal found 24/3$1,532

Wed 10/915:40ORD - SYD

1 stop24h 40mAir Canada

Wed 24/909:20SYD - ORD

2 stops25h 51mAir Canada

Deal found 25/3$1,648

Sat 10/518:45ORD - SYD

2 stops26h 00mFiji Airways

Sat 17/513:45SYD - ORD

2 stops21h 39mFiji Airways

Deal found 24/3$1,957

Tue 15/416:00ORD - SYD

1 stop27h 50mCathay Pacific

Tue 6/521:50SYD - ORD

1 stop31h 35mCathay Pacific

Deal found 24/3$2,264

Fri 9/518:58ORD - SYD

2 stops33h 47mAlaska Airlines

Fri 16/521:40SYD - ORD

2 stops34h 22mAlaska Airlines

Deal found 25/3$2,318

Last-minute flights from O'Hare Intl to Sydney
Discover last-minute flight deals from O'Hare Intl to Sydney. Data last updated 25 March 2025 and is based on user searches.

Wed 26/317:53ORD - SYD

2 stops57h 52mAlaska Airlines

Sun 30/321:40SYD - ORD

2 stops36h 36mAlaska Airlines

Deal found 25/3$2,874

Tue 1/418:45ORD - SYD

2 stops35h 25mFiji Airways

Wed 16/406:00SYD - ORD

2 stops32h 59mFiji Airways

Deal found 25/3$2,459

Tue 1/412:50ORD - SYD

1 stop27h 10mUnited Airlines

Wed 16/409:30SYD - ORD

1 stop20h 07mUnited Airlines

Deal found 25/3$2,793

Tue 1/407:20ORD - SYD

3 stops33h 00mAir Canada

Wed 16/409:20SYD - ORD

2 stops37h 42mAir Canada

Deal found 25/3$3,765

Tue 1/419:13ORD - SYD

3 stops33h 37mAir Tahiti Nui

Wed 16/419:25SYD - ORD

3 stops39h 03mAir Tahiti Nui

Deal found 24/3$4,125

Fri 4/422:27ORD - SYD

2 stops46h 18mMultiple Airlines

Wed 9/414:05SYD - ORD

1 stop39h 20mMultiple Airlines

Deal found 24/3$2,370

Fri 4/416:00ORD - SYD

1 stop27h 50mCathay Pacific

Wed 9/407:40SYD - ORD

1 stop45h 45mCathay Pacific

Deal found 24/3$2,658

Tue 15/408:52ORD - SYD

2 stops31h 28mAir Canada

Tue 6/509:20SYD - ORD

2 stops37h 42mAir Canada

Deal found 24/3$2,007

Tue 15/418:45ORD - SYD

2 stops36h 25mFiji Airways

Sat 17/513:45SYD - ORD

2 stops21h 39mFiji Airways

Deal found 24/3$2,065

Tue 15/416:00ORD - SYD

1 stop27h 50mCathay Pacific

Tue 6/521:50SYD - ORD

1 stop31h 35mCathay Pacific

Deal found 24/3$2,264

Tue 15/412:45ORD - SYD

2 stops29h 00mAir New Zealand

Tue 22/409:30SYD - ORD

1 stop20h 07mAir New Zealand

Deal found 25/3$2,664

Fri 18/419:20ORD - SYD

3 stops31h 30mAir Tahiti Nui

Thu 8/507:10SYD - ORD

3 stops27h 28mAir Tahiti Nui

Deal found 25/3$3,395

One-way flights from O'Hare Intl to Sydney
Search for one-way flight options from O'Hare Intl to Sydney. Find affordable one-way fares based on user searches. Data last updated 25 March 2025.

Sat 5/416:20ORD - SYD

2 stops38h 50mMultiple Airlines

Deal found 24/3$687

Tue 29/418:45ORD - SYD

2 stops26h 00mFiji Airways

Deal found 24/3$1,029

Mon 11/817:45ORD - SYD

1 stop24h 40mANA

Deal found 23/3$1,115

Wed 4/619:59ORD - SYD

2 stops32h 46mAlaska Airlines

Deal found 25/3$1,185

Wed 4/615:35ORD - SYD

1 stop24h 45mAir Canada

Deal found 24/3$1,191

Wed 28/513:33ORD - SYD

1 stop26h 32mQantas Airways

Deal found 24/3$1,242

Fri 23/517:05ORD - SYD

2 stops23h 00mAmerican Airlines

Deal found 24/3$1,419

Fri 9/511:05ORD - SYD

1 stop28h 55mUnited Airlines

Deal found 25/3$1,586

Sun 10/801:30ORD - SYD

1 stop37h 50mJapan Airlines

Deal found 23/3$1,626

Mon 1/916:45ORD - SYD

3 stops48h 40mChina Southern

Deal found 24/3$1,667

Fri 23/513:33ORD - SYD

3 stops37h 17mAir Tahiti Nui

Deal found 24/3$1,955

Wed 27/811:35ORD - SYD

3 stops40h 40mSingapore Airlines

Deal found 23/3$2,030

Cheapflights Fare Finder

Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Sydney that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Sun 25/5

15:15-07:30

1 stop25h 15m

Sydney Kingsford Smith

Wed 18/6

09:10-17:17

1 stop23h 07m

$1,311

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Thu 1/5

11:53-12:15

2 stops33h 22m

Sydney Kingsford Smith

Fri 9/5

13:15-06:42

2 stops32h 27m

$1,532

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Wed 10/9

10:40-07:20

2 stops29h 40m

Sydney Kingsford Smith

Wed 15/10

10:20-20:11

2 stops25h 51m

$1,648

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Sat 10/5

18:45-11:45

2 stops26h 00m

Sydney Kingsford Smith

Sat 17/5

13:45-20:24

2 stops21h 39m

$1,957

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Tue 15/4

16:00-10:50

1 stop27h 50m

Sydney Kingsford Smith

Tue 6/5

21:50-14:25

1 stop31h 35m

$2,264

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Fri 9/5

18:58-19:45

2 stops33h 47m

Sydney Kingsford Smith

Fri 16/5

21:40-17:02

2 stops34h 22m

$2,318

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Sat 5/4

16:20-22:10

2 stops38h 50m

$687

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Tue 29/4

18:45-11:45

2 stops26h 00m

$1,029

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Mon 11/8

17:45-09:25

1 stop24h 40m

$1,115

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Wed 4/6

19:59-19:45

2 stops32h 46m

$1,185

Flights are sorted by cheapest return flights first.

Deals found on 24/3

Showing 1-10 of 21 results

Best time to book a flight from O'Hare Intl to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney from O'Hare Intl 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 Chicago O'Hare Intl Airport to Sydney

How far ahead should I book a flight from Chicago O'Hare Intl Airport to Sydney?

The best time to book flights from Chicago O'Hare Intl Airport to Sydney is 13 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 Chicago O'Hare Intl Airport to Sydney?

Currently, May is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Sydney (average of $129). Flying from Chicago O'Hare Intl Airport to Sydney in October is currently the most expensive (average of $171). 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 ORD to SYD?

It’s optimal to fly from Chicago O'Hare Intl Airport to Sydney in the morning. By choosing this option you can save up to 28% on the cost of your flight, compared to a flight at midday.

Rainfall in Sydney by month

In terms of precipitation, rainfall in Sydney ranges from 50.0 - 130.0 inches per month. March is typically the wettest month, when rainfall can reach 130.0 mm. September is typically the driest time to visit Sydney when rainfall is around 50.0 mm.

Temperature in Sydney by month

If weather is an important factor for your trip to Sydney, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 22.0 C. Travellers hoping to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 11.0 C).

Reviews of airlines servicing Sydney

Peruse reviews from past customers who have flown with Air Tahiti Nui, Japan Airlines and ANA from Chicago to Sydney to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Air Tahiti Nui

8.7

Very Good

61 reviews

Check prices

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

Reviews

1 / 2

10.0

Excellent

Isabelle,Apr 2023

AKL - PPT

Japan Airlines

8.3

Very Good

1,440 reviews

Air Tahiti Nui

8.7

Very Good

61 reviews

Check prices

Reviews

1 / 2

10.0

Excellent

Isabelle,Apr 2023

AKL - PPT

ANA

8.3

Very Good

826 reviews

Air Tahiti Nui

8.7

Very Good

61 reviews

Check prices

Reviews

1 / 2

10.0

Excellent

Isabelle,Apr 2023

AKL - PPT

Singapore Airlines

8.1

Very Good

1,284 reviews

Air Tahiti Nui

8.7

Very Good

61 reviews

Check prices

Reviews

1 / 2

10.0

Excellent

Isabelle,Apr 2023

AKL - PPT

Fiji Airways

8.0

Very Good

182 reviews

Air Tahiti Nui

8.7

Very Good

61 reviews

Check prices

Reviews

1 / 2

10.0

Excellent

Isabelle,Apr 2023

AKL - PPT

Related info for your journey

What airport do you fly into for flights to Sydney from Chicago O'Hare Intl?
For a flight from Chicago O'Hare Intl to Sydney, you will be flying into Kingsford Smith. Sydney Kingsford Smith (SYD) is just 7.5 km from the centre vof the city. Kingsford Smith is the only Sydney airport and it handles 0 inbound flights from Chicago O'Hare Intl per day. 3 airlines have flights to Sydney Kingsford Smith from Chicago O'Hare Intl on a regular basis.
What are the cheapest airlines flying from Chicago O'Hare Intl Airport to Sydney round-trip?
According to our current data, Qantas Airways ($1,311), Air Canada ($1,648), and Fiji Airways ($1,957) offers the cheapest pricing from Chicago O'Hare Intl Airport to Sydney. Users have found that Qantas Airways is 26% cheaper than the other options available to this destination.
What are the cheapest airlines to fly from Chicago O'Hare Intl Airport to Sydney one-way?
To fly one-way, consider booking your trip with Fiji Airways, which is currently one of the cheapest options available, starting at $1,029. ANA flights start at $1,115 while deals on Alaska Airlines start at $1,185 one-way.
Can I find deals for flights from O'Hare Intl to Sydney that include hotel bookings?
Yes. In addition to deals on O'Hare Intl to Sydney flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from O'Hare Intl to Sydney?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from O'Hare Intl to Sydney.
Can I find deals for business class flights from O'Hare Intl to Sydney?
Yes. Cheapflights offers flight deals from O'Hare Intl to Sydney 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 Chicago O'Hare Intl Airport to Sydney?
Currently, May is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Sydney (average of $129). Flying from Chicago O'Hare Intl Airport to Sydney in October is currently the most expensive (average of $171). 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

Parramatta

Wollongong

Katoomba

Manly

Penrith

Coogee

Cronulla

Randwick

Terrigal

Lithgow

Bondi Beach

Leura

Swansea

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for O'Hare Intl to Sydney

Midway to Sydney flights

Other flights to Sydney

Top 3 airlines flying from O'Hare Intl to Sydney

Airline	Cheapest	Average	Flexibility	On-time
Qantas Airways	Cheapest$1,358	Average$1,464	FlexibilityNo cancel fee	On-time74%	Search Qantas Airways flights
Air Canada	Cheapest$1,799	Average$1,963	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
United Airlines	Cheapest$1,913	Average$2,593	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights

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

Cheapflights helps you search for flights from O'Hare Intl to Sydney via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from O'Hare Intl to Sydney?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from O'Hare Intl to Sydney for you. Better yet — we are completely free to use.

Can Cheapflights find flights from O'Hare Intl to Sydney with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from O'Hare Intl to Sydney, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from O'Hare Intl to Sydney become cheaper?

Of course! You can now track prices for flights from O'Hare Intl to Sydney and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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Cheap flights from Chicago O'Hare Intl Airport to Sydney from $687

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 5/4. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from Chicago O'Hare Intl to Sydney Kingsford Smith are usually found in March or May, booked 13 days in advance, depart on a Friday or Sunday and return on a Monday

Cheap flight deals from O'Hare Intl to Sydney

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from O'Hare Intl to Sydney

Cheapest flights from O'Hare Intl to SydneyExplore the most affordable flight options available from O'Hare Intl to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 25 March 2025.

Explore the most affordable flight options available from O'Hare Intl to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 25 March 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Sydney that are best for you.

Best time to book a flight from O'Hare Intl to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney from O'Hare Intl with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Chicago O'Hare Intl Airport to Sydney

How far ahead should I book a flight from Chicago O'Hare Intl Airport to Sydney?

Use this chart to determine the optimal time to book a return flight from O'Hare Intl to Sydney. Price data was last updated on 21 March 2025.

What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Sydney?

What is the cheapest time of day to fly from ORD to SYD?

Find hourly flight availability from O'Hare Intl to Sydney. 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.

Rainfall in Sydney by month

Plan your trip to Sydney by taking into account the average rainfall totals by month.

Temperature in Sydney by month

Plan your trip to Sydney by taking into account the average temperature totals by month.

Reviews of airlines servicing Sydney

Get insights into the airlines that provide service to Sydney. 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 Sydney. Reviews last updated 25 March 2025.

Peruse reviews from past customers who have flown with Air Tahiti Nui, Japan Airlines and ANA from Chicago to Sydney to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from O'Hare Intl to Sydney. 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 into for flights to Sydney from Chicago O'Hare Intl?

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

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

Can I find deals for flights from O'Hare Intl to Sydney that include hotel bookings?

How can I find direct flights from O'Hare Intl to Sydney?

Can I find deals for business class flights from O'Hare Intl to Sydney?

What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Sydney?

Travelling to a place near Chicago O'Hare Intl Airport?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for O'Hare Intl to Sydney

See prices for flight routes from nearby airports that may be better suited for you.

Top 3 airlines flying from O'Hare Intl to Sydney

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

Why should you use Cheapflights to find cheap flight tickets from O'Hare Intl to Sydney?

Can Cheapflights find flights from O'Hare Intl to Sydney with no change fees?

Can Cheapflights notify me if prices for flights from O'Hare Intl to Sydney become cheaper?

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Cheapest flights from O'Hare Intl to Sydney
Explore the most affordable flight options available from O'Hare Intl to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 25 March 2025.