Cheap flights from Chicago (CHI) to Australia from $498

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 4/2. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
CHI — SYD
Mar 24 — Mar 311

How far in advance should I book a flight from Chicago to Australia?

Users have found that booking a flight from Chicago to Australia at least 15 days early can save you up to 134% on average compared to booking a flight this week. If booking 15 days before your flight isn’t an option for you, users have found flights from Chicago to Australia for as little as $1,287 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $1,886 for flights departing within the next 3 days.

What is the cheapest month to fly from Chicago to Australia?

Flights from Chicago to Australia lean towards being more expensive in December. Prices are generally better when you fly from Chicago to Australia in October, with the cheapest ticket starting at $859.

When is the cheapest time to fly from Chicago to Australia (CHI - AU)?

When flying from Chicago to Australia, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Cheap Cathay Pacific flights from Chicago to Australia

Explore cheap flight options specifically provided by Cathay Pacific for the route between Chicago and Australia. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,145,932 searches. Data last updated March 19, 2024.
Find some of the cheapest Cathay Pacific flights traveling from Chicago to Australia. Deals update often to give you more flight options matching your criteria
Thu 3/283:40 pmORD - SYD
1 stop28h 20mCathay Pacific
Wed 4/109:50 pmSYD - ORD
1 stop31h 35mCathay Pacific
Deal found 3/18$1,164
Thu 3/283:40 pmORD - SYD
1 stop28h 20mCathay Pacific
Wed 4/310:20 pmSYD - ORD
1 stop32h 05mCathay Pacific
Deal found 3/18$1,195
Tue 4/24:05 pmORD - MEL
1 stop28h 10mCathay Pacific
Wed 4/242:25 pmMEL - ORD
1 stop39h 00mCathay Pacific
Deal found 3/18$1,199
Thu 5/94:05 pmORD - SYD
1 stop27h 45mCathay Pacific
Thu 5/239:50 pmSYD - ORD
1 stop31h 35mCathay Pacific
Deal found 3/18$1,212
Thu 3/283:40 pmORD - MEL
1 stop39h 20mCathay Pacific
Wed 4/242:25 pmMEL - ORD
1 stop39h 00mCathay Pacific
Deal found 3/18$1,215
Sun 3/314:05 pmORD - MEL
1 stop28h 10mCathay Pacific
Mon 4/227:25 amMEL - ORD
1 stop46h 00mCathay Pacific
Deal found 3/18$1,221
Thu 5/24:05 pmORD - SYD
1 stop27h 45mCathay Pacific
Sat 5/119:50 pmSYD - ORD
1 stop31h 35mCathay Pacific
Deal found 3/18$1,222
Tue 4/24:05 pmORD - MEL
1 stop28h 10mCathay Pacific
Sat 4/2011:45 pmMEL - ORD
1 stop29h 40mCathay Pacific
Deal found 3/18$1,234
Thu 5/24:05 pmORD - SYD
1 stop25h 40mCathay Pacific
Fri 5/102:05 pmSYD - ORD
1 stop39h 20mCathay Pacific
Deal found 3/18$1,238

Cheap American Airlines flights from Chicago to Australia

Explore cheap flight options specifically provided by American Airlines for the route between Chicago and Australia. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,145,932 searches. Data last updated March 19, 2024.
Take a gander at the lowest prices we've found on American Airlines flights from Chicago to Australia. Deals are refreshing constantly so come back soon for more options.
Tue 4/305:10 pmORD - SYD
2 stops22h 55mAmerican Airlines
Tue 5/79:15 amSYD - ORD
2 stops23h 11mAmerican Airlines
Deal found 3/18$1,363
Sun 6/25:00 pmORD - SYD
2 stops23h 05mAmerican Airlines
Wed 6/129:10 amSYD - ORD
2 stops23h 10mAmerican Airlines
Deal found 3/18$1,364
Sun 3/248:20 pmORD - SYD
1 stop20h 40mAmerican Airlines
Tue 4/210:15 amSYD - ORD
1 stop34h 49mAmerican Airlines
Deal found 3/18$1,372
Sat 6/18:19 pmORD - SYD
1 stop43h 46mAmerican Airlines
Tue 6/119:10 amSYD - ORD
2 stops23h 45mAmerican Airlines
Deal found 3/18$1,376
Thu 3/2810:00 amORD - SYD
2 stops31h 00mAmerican Airlines
Wed 4/310:15 amSYD - ORD
2 stops36h 54mAmerican Airlines
Deal found 3/18$1,411
Thu 3/2812:15 pmORD - SYD
2 stops28h 45mAmerican Airlines
Wed 4/310:15 amSYD - ORD
1 stop19h 46mAmerican Airlines
Deal found 3/18$1,413
Mon 3/254:15 pmORD - SYD
2 stops24h 45mAmerican Airlines
Thu 8/19:10 amSYD - ORD
2 stops23h 34mAmerican Airlines
Deal found 3/18$1,414
Sat 3/238:20 pmORD - SYD
1 stop20h 40mAmerican Airlines
Tue 4/210:15 amSYD - ORD
1 stop34h 49mAmerican Airlines
Deal found 3/18$1,422
Sat 3/238:20 pmORD - SYD
1 stop20h 40mAmerican Airlines
Sun 3/3111:15 amSYD - ORD
2 stops24h 29mAmerican Airlines
Deal found 3/18$1,444

Cheap Chicago to Australia flights in March & April 2024

Find cheap flight options from Chicago to Australia specifically for the months of March and April 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,145,932 searches. Prices were last updated on March 19, 2024.
These are some of the best deals we've found on flights to Australia in 2024 at this time. Check back regularly for other flight deals.
Thu 3/283:40 pmORD - SYD
1 stop28h 20mCathay Pacific
Wed 4/109:50 pmSYD - ORD
1 stop31h 35mCathay Pacific
Deal found 3/18$1,164
Thu 3/283:40 pmORD - SYD
1 stop28h 20mCathay Pacific
Mon 4/110:20 pmSYD - ORD
1 stop32h 05mCathay Pacific
Deal found 3/19$1,195
Tue 4/24:05 pmORD - MEL
1 stop28h 10mCathay Pacific
Wed 4/242:25 pmMEL - ORD
1 stop39h 00mCathay Pacific
Deal found 3/18$1,199
Thu 3/283:40 pmORD - MEL
1 stop39h 20mCathay Pacific
Wed 4/242:25 pmMEL - ORD
1 stop39h 00mCathay Pacific
Deal found 3/18$1,215
Sun 3/314:05 pmORD - MEL
1 stop28h 10mCathay Pacific
Mon 4/227:25 amMEL - ORD
1 stop46h 00mCathay Pacific
Deal found 3/18$1,221
Wed 4/174:40 pmORD - SYD
1 stop23h 40mAir Canada
Wed 4/249:20 amSYD - ORD
1 stop21h 29mAir Canada
Deal found 3/18$1,223
Tue 4/304:40 pmORD - SYD
1 stop23h 40mAir Canada
Tue 5/79:20 amSYD - ORD
2 stops39h 34mAir Canada
Deal found 3/18$1,229
Tue 4/24:05 pmORD - MEL
1 stop28h 10mCathay Pacific
Sat 4/2011:45 pmMEL - ORD
1 stop29h 40mCathay Pacific
Deal found 3/18$1,234
Mon 4/155:50 pmORD - MEL
2 stops26h 00mAir New Zealand
Sun 4/289:30 amMEL - ORD
1 stop20h 22mAir New Zealand
Deal found 3/17$1,237

Chicago to Australia 2024 flight deals

Discover exclusive flight deals for travel between Chicago and Australia in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,145,932 searches. Data last updated March 19, 2024.
These are some of the best deals we've found on flights to Australia in 2024 at this time. Check back regularly for other flight deals.
Mon 9/94:50 pmORD - SYD
1 stop23h 15mQantas Airways
Tue 9/179:10 amSYD - ORD
1 stop29h 46mQantas Airways
Deal found 3/18$984
Wed 9/119:55 amORD - SYD
1 stop30h 10mQantas Airways
Sun 12/225:30 pmSYD - ORD
1 stop23h 05mQantas Airways
Deal found 3/18$985
Thu 12/58:35 amORD - SYD
1 stop29h 50mQantas Airways
Wed 12/185:30 pmSYD - ORD
1 stop23h 11mQantas Airways
Deal found 3/17$1,031
Tue 9/106:25 pmORD - SYD
1 stop21h 40mQantas Airways
Wed 9/189:10 amSYD - ORD
1 stop20h 09mQantas Airways
Deal found 3/18$1,038
Sun 8/188:20 amORD - SYD
1 stop31h 45mQantas Airways
Fri 8/305:35 pmSYD - ORD
1 stop21h 21mQantas Airways
Deal found 3/18$1,041
Fri 8/94:50 pmORD - SYD
1 stop23h 15mQantas Airways
Fri 8/309:10 amSYD - ORD
1 stop20h 09mQantas Airways
Deal found 3/18$1,074
Sat 8/316:25 pmORD - SYD
1 stop22h 45mQantas Airways
Fri 9/139:10 amSYD - ORD
1 stop23h 27mQantas Airways
Deal found 3/18$1,075
Sat 8/179:55 amORD - SYD
1 stop31h 15mQantas Airways
Fri 8/305:35 pmSYD - ORD
1 stop21h 21mQantas Airways
Deal found 3/18$1,076
Wed 10/233:00 pmORD - SYD
1 stop24h 05mQantas Airways
Wed 11/611:15 amSYD - ORD
1 stop21h 44mQantas Airways
Deal found 3/17$1,082

Chicago to Australia flights leaving soon

Find last-minute flight options from Chicago to Australia for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 3,145,932 searches. Data last updated March 19, 2024.
Have a look at some of the last-minute flights available departing from Chicago to Australia. Users should be sure to double check the price, date, and time of their last-minute flight.
Thu 3/283:40 pmORD - SYD
1 stop28h 20mCathay Pacific
Wed 4/109:50 pmSYD - ORD
1 stop31h 35mCathay Pacific
Deal found 3/18$1,164
Thu 3/283:40 pmORD - SYD
1 stop28h 20mCathay Pacific
Wed 4/310:20 pmSYD - ORD
1 stop32h 05mCathay Pacific
Deal found 3/18$1,195
Thu 3/283:40 pmORD - MEL
1 stop39h 20mCathay Pacific
Mon 4/222:25 pmMEL - ORD
1 stop39h 00mCathay Pacific
Deal found 3/18$1,215
Thu 3/283:40 pmORD - MEL
1 stop39h 20mCathay Pacific
Sat 4/2011:45 pmMEL - ORD
1 stop29h 40mCathay Pacific
Deal found 3/18$1,249
Thu 3/284:40 pmORD - AVV
2 stops35h 40mMultiple Airlines
Mon 4/228:50 pmAVV - ORD
2 stops33h 59mMultiple Airlines
Deal found 3/18$1,350
Mon 3/258:20 pmORD - SYD
1 stop20h 40mQantas Airways
Thu 8/15:35 pmSYD - ORD
1 stop37h 20mQantas Airways
Deal found 3/18$1,351
Sun 3/246:32 pmORD - SYD
1 stop22h 33mUnited Airlines
Tue 4/99:30 amSYD - ORD
1 stop29h 29mUnited Airlines
Deal found 3/18$1,360
Sun 3/245:12 pmORD - SYD
1 stop23h 48mAmerican Airlines
Tue 4/210:15 amSYD - ORD
2 stops30h 13mAmerican Airlines
Deal found 3/18$1,364
Fri 3/294:40 pmORD - MEL
2 stops26h 45mMultiple Airlines
Sun 4/218:55 pmMEL - ORD
2 stops33h 54mMultiple Airlines
Deal found 3/18$1,366

One-way flights to Australia from Chicago

Search for one-way flight options from Chicago to Australia. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 3,145,932 searches. Data last updated March 19, 2024.
Take a look at some of the best available options we've come across on one-way flights from Chicago to Australia. Users needing a return flight from Chicago to Australia should utilize the search form above.
Tue 4/25:06 pmORD - SYD
3 stops54h 34mMultiple Airlines
Deal found 3/17$498
Tue 4/25:51 pmMDW - SYD
3 stops53h 49mMultiple Airlines
Deal found 3/17$566
Tue 4/25:06 pmORD - SYD
2 stops54h 34mMultiple Airlines
Deal found 3/19$569
Tue 4/25:06 pmORD - SYD
2 stops54h 34mMultiple Airlines
Deal found 3/17$586
Tue 3/2610:46 pmORD - SYD
2 stops48h 49mMultiple Airlines
Deal found 3/17$603
Tue 4/27:54 pmORD - SYD
3 stops51h 46mMultiple Airlines
Deal found 3/19$604
Tue 3/265:51 pmMDW - SYD
3 stops53h 44mMultiple Airlines
Deal found 3/17$608
Wed 4/173:20 pmORD - SYD
3 stops49h 00mMultiple Airlines
Deal found 3/18$610
Thu 3/2810:56 pmMDW - SYD
3 stops48h 39mMultiple Airlines
Deal found 3/17$612

Find flights from Chicago to Australia within your budget

Customize your flight search to find flights from Chicago to Australia 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 3,145,932 searches. Data last updated March 19, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$1,164 - $1,449

Route

Depart

Return

Price

Chicago O'Hare IntlSydney Kingsford Smith

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Thu 3/28

1 stop28h 20m

Sydney Kingsford Smith

Wed 4/10

1 stop31h 35m

$1,164

Chicago O'Hare IntlBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Sun 6/16

2 stops33h 40m

Brisbane

Sat 8/10

2 stops30h 41m

$1,221

Chicago O'Hare IntlSydney Kingsford Smith

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Wed 4/17

1 stop23h 40m

Sydney Kingsford Smith

Wed 4/24

1 stop21h 29m

$1,223

Chicago O'Hare IntlMelbourne

ORD - MEL

ORDMEL

Chicago O'Hare Intl

Mon 4/15

2 stops26h 00m

Melbourne

Sun 4/28

1 stop20h 22m

$1,237

Chicago O'Hare IntlSydney Kingsford Smith

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Mon 4/8

1 stop23h 40m

Sydney Kingsford Smith

Mon 4/29

2 stops23h 49m

$1,283

Chicago O'Hare IntlSydney Kingsford Smith

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Tue 4/30

2 stops22h 55m

Sydney Kingsford Smith

Tue 5/7

2 stops23h 11m

$1,363

Chicago O'Hare IntlSydney Kingsford Smith

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Sat 3/23

1 stop42h 48m

Sydney Kingsford Smith

Wed 4/3

1 stop24h 25m

$1,368

Chicago O'Hare IntlSydney Kingsford Smith

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Sun 4/14

2 stops23h 45m

Sydney Kingsford Smith

Tue 4/23

2 stops26h 56m

$1,387

Chicago O'Hare IntlMelbourne

ORD - MEL

ORDMEL

Chicago O'Hare Intl

Mon 4/1

2 stops32h 10m

Melbourne

Wed 4/24

2 stops35h 25m

$1,449

Flights are sorted by cheapest first

Deals found on 3/18

Reviews of airlines servicing Australia

Get insights into the airlines that provide service to Australia. 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 Australia. Reviews last updated March 19, 2024.
Read through reviews of airlines operating flights from Chicago to Australia, such as Cathay Pacific, American Airlines and Japan Airlines. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.7
Very good
79 reviews

Boarding

8.5

Entertainment

7.4

Overall

8.7

Food

7.8

Comfort

8.1

Crew

8.9

Reviews

1 / 2

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.

8.7
Very good
79 reviews
8.7
Very good
79 reviews

Boarding

8.5

Entertainment

7.4

Overall

8.7

Food

7.8

Comfort

8.1

Crew

8.9

Reviews

1 / 2

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.

8.6
Very good
1,244 reviews
8.7
Very good
79 reviews

Boarding

8.5

Entertainment

7.4

Overall

8.7

Food

7.8

Comfort

8.1

Crew

8.9

Reviews

1 / 2

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.

8.5
Very good
998 reviews
8.7
Very good
79 reviews

Boarding

8.5

Entertainment

7.4

Overall

8.7

Food

7.8

Comfort

8.1

Crew

8.9

Reviews

1 / 2

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.

8.4
Very good
1,476 reviews
8.7
Very good
79 reviews

Boarding

8.5

Entertainment

7.4

Overall

8.7

Food

7.8

Comfort

8.1

Crew

8.9

Reviews

1 / 2

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.

8.4
Very good
1,633 reviews
8.7
Very good
79 reviews

Boarding

8.5

Entertainment

7.4

Overall

8.7

Food

7.8

Comfort

8.1

Crew

8.9

Reviews

1 / 2

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 Chicago to Australia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • Can I find flights from Chicago to Australia for under $1,200 on Cheapflights?

    Yes, there are multiple flights from Chicago to Australia for under $1,200. The cheapest flight booked recently is on Cathay Pacific for just $1,164, but on average you can expect to pay $1,228.

  • Are there last-minute flights available from Chicago to Australia for under $1,200?

    There are currently 20+ open flights from Chicago to Australia within the next 7 days for less than $1,200.

  • What are the most popular routes from Chicago to Australia?

  • What are the most popular airlines that fly from Chicago to Australia?

  • What does ORD to SYD mean?

    ORD stands for Chicago O'Hare Intl Airport, while SYD stands for Sydney Kingsford Smith Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry. Ready for more IATA code knowledge? These are related airports for your current travel destination: Melbourne Airport (MEL), Brisbane Airport (BNE), Perth Airport (PER), Adelaide Airport (ADL), Coolangatta Gold Coast Airport (OOL).

See more FAQs

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.

Top 10 airlines flying from Chicago to Australia

Discover the top 10 airlines that operate flights from Chicago to Australia. 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 3,145,932 searches. Data last updated March 19, 2024.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$319Average$1,303FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Fiji AirwaysCheapest$739Average$1,400FlexibilityNo cancel feeOn-time74%
Search Fiji Airways flights
United AirlinesCheapest$852Average$1,741FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
DeltaCheapest$966Average$1,639FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapest$1,022Average$1,602FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Air New ZealandCheapest$1,217Average$1,719FlexibilityNo cancel feeOn-time78%
Search Air New Zealand flights
Qantas AirwaysCheapest$1,233Average$2,048FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
ANACheapest$1,349Average$2,078FlexibilityNo cancel feeOn-time80%
Search ANA flights
British AirwaysCheapest$1,387Average$1,553FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Singapore AirlinesCheapest$1,547Average$1,897FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights

Search flights from Chicago to Australia by cabin class

Find flights from Chicago to Australia, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Fly with Cheapflights

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

How does Cheapflights help users find flights from Chicago to Australia?

Cheapflights helps you search for flights from Chicago to Australia 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 Chicago to Australia?

Cheapflights simply makes it quick and affordable to book flights from Chicago to Australia by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Chicago to Australia with no change fees?

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

Can Cheapflights notify me if prices for flights from Chicago to Australia become cheaper?

Of course! You can now track prices for flights from Chicago to Australia 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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