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Cheap flights from Chicago O'Hare Intl Airport to Australia from $406

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago O'Hare Intl Airport to Australia departing on 9/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Chicago O'Hare Intl Airport to Australia

Cheap round-trip flights

Air Canada Logo
3:40 pm - 7:20 amORD-SYD
24h 40m1 stop
Air Canada Logo
9:20 am - 3:00 pmSYD-ORD
20h 40m1 stop
$800Air Canada
Find Deal
Sun, Aug 24 - Tue, Sep 9
Air Canada Logo
3:40 pm - 7:20 amORD-SYD
24h 40m1 stop
Air Canada Logo
9:20 am - 4:42 pmSYD-ORD
22h 22m1 stop
$832Air Canada
Find Deal
Sun, Aug 24 - Tue, Sep 9
Fiji Airways Logo
6:30 pm - 10:35 amORD-BNE
25h 05m2 stops
Fiji Airways Logo
11:40 am - 9:45 pmBNE-ORD
25h 05m2 stops
$1,261Fiji Airways
Find Deal
Sat, Sep 20 - Sat, Oct 4
Fiji Airways Logo
6:20 pm - 10:25 amORD-BNE
25h 05m2 stops
Fiji Airways Logo
11:40 am - 8:57 pmBNE-ORD
24h 17m2 stops
$1,361Fiji Airways
Find Deal
Tue, Aug 19 - Sat, Aug 23
Qantas Airways Logo
4:45 pm - 6:30 amORD-BNE
21h 45m1 stop
Qantas Airways Logo
7:25 pm - 11:59 pmBNE-ORD
20h 34m1 stop
$1,402Qantas Airways
Find Deal
Tue, Nov 25 - Wed, Dec 3
Qantas Airways Logo
3:23 pm - 6:00 amORD-BNE
22h 37m1 stop
Qantas Airways Logo
11:30 am - 5:28 pmBNE-ORD
21h 58m1 stop
$1,410Qantas Airways
Find Deal
Tue, Dec 9 - Tue, Dec 16
American Airlines Logo
3:00 pm - 5:00 amORD-BNE
22h 00m1 stop
American Airlines Logo
7:25 pm - 11:59 pmBNE-ORD
20h 34m1 stop
$1,425American Airlines
Find Deal
Tue, Nov 18 - Tue, Dec 2
American Airlines Logo
3:00 pm - 5:00 amORD-BNE
22h 00m1 stop
American Airlines Logo
7:25 pm - 12:12 amBNE-ORD
20h 47m2 stops
$1,430American Airlines
Find Deal
Tue, Nov 18 - Tue, Dec 2
United Airlines Logo
10:00 pm - 7:30 amORD-BNE
41h 30m1 stop
United Airlines Logo
11:40 am - 11:14 pmBNE-ORD
27h 34m1 stop
$1,470United Airlines
Find Deal
Tue, Dec 23 - Wed, Dec 31
United Airlines Logo
10:00 pm - 7:30 amORD-BNE
41h 30m1 stop
United Airlines Logo
11:40 am - 11:57 pmBNE-ORD
28h 17m2 stops
$1,474United Airlines
Find Deal
Tue, Dec 23 - Wed, Dec 31

Air Canada flights from Chicago O'Hare Intl Airport to Australia

Our best Air Canada deals on Chicago O'Hare Intl Airport to Australia flight tickets
Air Canada
Aug 24
ORD3:40 pmChicago O'Hare Intl
24h 40m
1 stop
SYD7:20 amSydney Kingsford Smith
Sep 9
SYD9:20 amSydney Kingsford Smith
20h 40m
1 stop
ORD3:00 pmChicago O'Hare Intl
$800
Find similar
Air Canada
Aug 24
ORD3:40 pmChicago O'Hare Intl
24h 40m
1 stop
SYD7:20 amSydney Kingsford Smith
Sep 9
SYD9:20 amSydney Kingsford Smith
22h 22m
1 stop
ORD4:42 pmChicago O'Hare Intl
$832
Find similar
Air Canada
Oct 29
ORD8:45 amChicago O'Hare Intl
31h 50m
2 stops
SYD8:35 amSydney Kingsford Smith
Nov 12
SYD11:20 amSydney Kingsford Smith
22h 24m
1 stop
ORD4:44 pmChicago O'Hare Intl
$835
Find similar

Fiji Airways flights from Chicago O'Hare Intl Airport to Australia

Our best Fiji Airways deals on Chicago O'Hare Intl Airport to Australia flight tickets
Fiji Airways
Sep 20
ORD6:30 pmChicago O'Hare Intl
25h 05m
2 stops
BNE10:35 amBrisbane
Oct 4
BNE11:40 amBrisbane
25h 05m
2 stops
ORD9:45 pmChicago O'Hare Intl
$1,261
Find similar
Fiji Airways
Aug 19
ORD6:20 pmChicago O'Hare Intl
25h 05m
2 stops
BNE10:25 amBrisbane
Aug 23
BNE11:40 amBrisbane
24h 17m
2 stops
ORD8:57 pmChicago O'Hare Intl
$1,361
Find similar
Fiji Airways
Aug 13
ORD7:03 pmChicago O'Hare Intl
26h 17m
2 stops
CBR12:20 pmCanberra
Aug 16
CBR1:20 pmCanberra
22h 37m
2 stops
ORD8:57 pmChicago O'Hare Intl
$1,426
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Chicago O'Hare Intl Airport 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, momondo users made 832,500 searches. Data last updated August 1, 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Australia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Sun 8/24

3:40 pm-7:20 am

1 stop24h 40m

Sydney Kingsford Smith

Tue 9/9

9:20 am-3:00 pm

1 stop20h 40m

$800

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Sun 8/24

3:40 pm-7:20 am

1 stop24h 40m

Sydney Kingsford Smith

Tue 9/9

9:20 am-4:42 pm

1 stop22h 22m

$832

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Sat 9/20

6:30 pm-10:35 am

2 stops25h 05m

Brisbane

Sat 10/4

11:40 am-9:45 pm

2 stops25h 05m

$1,261

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Tue 8/19

6:20 pm-10:25 am

2 stops25h 05m

Brisbane

Sat 8/23

11:40 am-8:57 pm

2 stops24h 17m

$1,361

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Tue 11/25

4:45 pm-6:30 am

1 stop21h 45m

Brisbane

Wed 12/3

7:25 pm-11:59 pm

1 stop20h 34m

$1,402

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Tue 12/9

3:23 pm-6:00 am

1 stop22h 37m

Brisbane

Tue 12/16

11:30 am-5:28 pm

1 stop21h 58m

$1,410

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Tue 11/18

3:00 pm-5:00 am

1 stop22h 00m

Brisbane

Tue 12/2

7:25 pm-11:59 pm

1 stop20h 34m

$1,425

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Tue 11/18

3:00 pm-5:00 am

1 stop22h 00m

Brisbane

Tue 12/2

7:25 pm-12:12 am

2 stops20h 47m

$1,430

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Tue 12/23

10:00 pm-7:30 am

1 stop41h 30m

Brisbane

Wed 12/31

11:40 am-11:14 pm

1 stop27h 34m

$1,470

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Tue 12/23

10:00 pm-7:30 am

1 stop41h 30m

Brisbane

Wed 12/31

11:40 am-11:57 pm

2 stops28h 17m

$1,474

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Australia from

How to get the cheapest flight ticket from Chicago O'Hare Intl Airport to Australia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Australia?

The month of March is, on average, the cheapest month to fly to Australia from Chicago O'Hare Intl Airport, with most prices found around $857. If you aren’t able to travel during the month of March, then book flights to Australia from Chicago O'Hare Intl Airport during May instead. Flights to Australia in May, while not as cheap as those in March, still average around $871.

What is the cheapest day to depart on your flight to Australia?

The cheapest day to depart from Chicago O'Hare Intl Airport to Australia is on a Saturday. Travelers who choose to depart for Australia on a Saturday will often find tickets for as low as $935. On the other hand, Thursday is the most expensive day to depart from Chicago O'Hare Intl Airport because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,415.

What is the cheapest time of day to depart on your flight to Australia?

Flying to Australia from Chicago O'Hare Intl Airport in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $1,185 when looking at flights departing in the afternoon. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $1,417 on average. Flights to Australia from Chicago O'Hare Intl Airport in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

You are more likely to see cheaper flights to Australia from Chicago O'Hare Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Australia for around $1,102 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Australia from Chicago O'Hare Intl Airport for as low as $911 on momondo.

Can stopping save me money on Chicago O'Hare Intl Airport to Australia flights?

You could potentially save up to 25% on your flight if you consider stops on a Chicago O'Hare Intl Airport to Australia flight.

Cheap Chicago O'Hare Intl Airport to Australia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago O'Hare Intl Airport to Australia

Best Price Found

$406

Fastest flight time

21h 35m

Direct flights

None

Airports in Australia

7 airports
The best one-way flight to Australia from Chicago O'Hare Intl Airport in the past 72 hours is $406. The best round-trip flight deal from Chicago O'Hare Intl Airport to Australia found on momondo in the last 72 hours is $800.
The fastest flight from Chicago O'Hare Intl Airport to Australia takes 21h 35m
There are no direct flights from Chicago O'Hare Intl Airport to Australia. Popular non-direct routes for this connection are Chicago O'Hare Intl Airport - Sydney Kingsford Smith Airport, Chicago O'Hare Intl Airport - Perth Airport and Chicago O'Hare Intl Airport - Brisbane Airport.
There are 7 airports near Australia: Melbourne Avalon (AVV), Canberra (CBR), Melbourne (MEL), Brisbane (BNE), Adelaide (ADL), Perth (PER), Sydney Kingsford Smith (SYD)
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  • When did momondo last update prices for flights from Chicago O'Hare Intl Airport to Australia?

    Prices for flights from Chicago O'Hare Intl Airport to Australia were last updated today.

  • How many operators does momondo search for flights from Chicago O'Hare Intl Airport to Australia?

  • How old do you have to be to fly from Chicago O'Hare Intl Airport to Australia?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Chicago O'Hare Intl Airport to Australia.

  • What documentation or ID do you need to fly to Australia?

    The travel and health documents you'll need for your trip to Australia may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Australia. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Chicago O'Hare Intl Airport to Australia

Compare and see reviews for airlines that fly from Chicago O'Hare Intl Airport to Australia with momondo
Airline
Rating
Free Cancellation
Price
Qantas AirwaysPriceFrom $647Free CancellationRating
7.5
887 reviews
Search Qantas Airways flights
ANAPriceFrom $679Free CancellationRating
8.4
922 reviews
Search ANA flights
American AirlinesPriceFrom $679Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Fiji AirwaysPriceFrom $772Free CancellationRating
8.0
202 reviews
Search Fiji Airways flights
DeltaPriceFrom $851Free CancellationRating
8.0
7,983 reviews
Search Delta flights
Air CanadaPriceFrom $953Free CancellationRating
7.1
9,855 reviews
Search Air Canada flights
United AirlinesPriceFrom $1,164Free CancellationRating
7.4
8,904 reviews
Search United Airlines flights
Air New ZealandPriceFrom $1,275Free CancellationRating
7.9
501 reviews
Search Air New Zealand flights
Cathay PacificPriceFrom $1,470Free CancellationRating
7.6
951 reviews
Search Cathay Pacific flights

Why use momondo?

Why should I use momondo to find a flight deal from Chicago to Australia?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Chicago to Australia. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Chicago to Australia with flexible booking policies on momondo?

momondo does allow users to show only those flights to Australia from Chicago which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Chicago to Australia?

Once all potential Chicago to Australia flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Chicago to Australia right now. Can momondo alert me if prices change?

Price alerts on flights to Australia from Chicago are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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