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Cheap flights from Australia to Chicago from $498

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Australia to Chicago departing on 9/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Australia to Chicago

Recent round-trip flight deals from Australia to Chicago

Enter your travel dates to find the best prices.
Air Canada Logo
9:20 am - 7:51 amSYD  Sydney Kingsford Smith-ORD Chicago O'Hare Intl
37h 31m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl
Air Canada Logo
3:40 pm - 7:20 amORD  Chicago O'Hare Intl-SYD Sydney Kingsford Smith
24h 40m1 stop Vancouver Intl
$969Air Canada
Tue, Sep 8 - Tue, Sep 22
Air Canada Logo
9:20 am - 7:51 amSYD  Sydney Kingsford Smith-ORD Chicago O'Hare Intl
37h 31m3 stops Vancouver Intl Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl
Air Canada Logo
3:40 pm - 7:20 amORD  Chicago O'Hare Intl-SYD Sydney Kingsford Smith
24h 40m1 stop Vancouver Intl
$977Air Canada
Tue, Sep 8 - Tue, Sep 22
Multiple Airlines Logo
7:45 am - 8:01 pmMEL  Melbourne-ORD Chicago O'Hare Intl
29h 16m2 stops Sydney Kingsford Smith Vancouver Intl
Multiple Airlines Logo
3:30 pm - 1:20 pmORD  Chicago O'Hare Intl-MEL Melbourne
28h 50m2 stops Vancouver Intl Sydney Kingsford Smith
$1,017Multiple Airlines
Wed, Nov 18 - Sat, Nov 28
Multiple Airlines Logo
8:00 am - 7:58 pmMEL  Melbourne-ORD Chicago O'Hare Intl
28h 58m3 stops Sydney Kingsford Smith Vancouver Intl Toronto Pearson Intl
Multiple Airlines Logo
3:30 pm - 1:20 pmORD  Chicago O'Hare Intl-MEL Melbourne
28h 50m2 stops Vancouver Intl Sydney Kingsford Smith
$1,025Multiple Airlines
Wed, Nov 18 - Sat, Nov 28
Qantas Airways Logo
6:25 am - 3:54 pmSYD  Sydney Kingsford Smith-ORD Chicago O'Hare Intl
24h 29m2 stops Melbourne Los Angeles Los Angeles
Qantas Airways Logo
5:50 pm - 3:45 pmORD  Chicago O'Hare Intl-SYD Sydney Kingsford Smith
30h 55m2 stops Los Angeles Los Angeles Melbourne
$1,190Qantas Airways
Fri, Aug 28 - Sat, Sep 12
Qantas Airways Logo
9:10 am - 2:54 pmSYD  Sydney Kingsford Smith-ORD Chicago O'Hare Intl
20h 44m1 stop Los Angeles Los Angeles
Qantas Airways Logo
1:29 pm - 6:25 amORD  Chicago O'Hare Intl-SYD Sydney Kingsford Smith
25h 56m1 stop San Francisco
$1,650Qantas Airways
Thu, Aug 27 - Fri, Sep 11
Japan Airlines Logo
12:15 pm - 7:45 amPER  Perth-ORD Chicago O'Hare Intl
32h 30m2 stops Singapore Changi Tokyo Haneda
Japan Airlines Logo
2:10 pm - 12:40 amORD  Chicago O'Hare Intl-PER Perth
45h 30m2 stops Tokyo Haneda Singapore Changi
$2,042Japan Airlines
Sun, Aug 23 - Sun, Sep 6
United Airlines Logo
10:20 am - 5:05 pmSYD  Sydney Kingsford Smith-ORD Chicago O'Hare Intl
21h 45m2 stops San Francisco Denver Intl
United Airlines Logo
2:16 pm - 6:55 amORD  Chicago O'Hare Intl-SYD Sydney Kingsford Smith
25h 39m2 stops Houston George Bush Intcntl San Francisco
$2,089United Airlines
Fri, Aug 28 - Tue, Sep 1
United Airlines Logo
9:30 am - 2:36 pmSYD  Sydney Kingsford Smith-ORD Chicago O'Hare Intl
20h 06m1 stop Los Angeles Los Angeles
United Airlines Logo
12:47 pm - 6:55 amORD  Chicago O'Hare Intl-SYD Sydney Kingsford Smith
27h 08m2 stops Houston George Bush Intcntl San Francisco
$2,089United Airlines
Fri, Aug 28 - Tue, Sep 1
Japan Airlines Logo
12:15 pm - 7:45 amPER  Perth-ORD Chicago O'Hare Intl
56h 30m2 stops Singapore Changi Tokyo Narita
Japan Airlines Logo
10:15 am - 10:40 pmORD  Chicago O'Hare Intl-PER Perth
47h 25m2 stops Tokyo Narita Hong Kong Intl
$2,114Japan Airlines
Sat, Aug 29 - Sat, Sep 5

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

Our best Air Canada deals on Australia to Chicago O'Hare Intl Airport flight tickets
Air Canada
Sep 9
SYD9:20 amSydney Kingsford Smith
25h 28m
2 stops
ORD7:48 pmChicago O'Hare Intl
Sep 19
ORD9:18 pmChicago O'Hare Intl
43h 02m
2 stops
SYD7:20 amSydney Kingsford Smith
$1,008
Air Canada
Nov 18
MEL8:00 amMelbourne
28h 05m
3 stops
ORD7:05 pmChicago O'Hare Intl
Nov 28
ORD10:15 amChicago O'Hare Intl
34h 20m
3 stops
MEL1:35 pmMelbourne
$1,055
Air Canada
Sep 9
SYD9:20 amSydney Kingsford Smith
38h 40m
2 stops
ORD9:00 amChicago O'Hare Intl
Sep 19
ORD3:40 pmChicago O'Hare Intl
24h 40m
1 stop
SYD7:20 amSydney Kingsford Smith
$1,071

Cathay Pacific flights from Australia to Chicago O'Hare Intl Airport

Our best Cathay Pacific deals on Australia to Chicago O'Hare Intl Airport flight tickets
Cathay Pacific
Oct 20
MEL12:45 amMelbourne
29h 10m
1 stop
ORD1:55 pmChicago O'Hare Intl
Oct 28
ORD3:35 pmChicago O'Hare Intl
39h 25m
1 stop
MEL11:00 pmMelbourne
$1,191
Cathay Pacific
Nov 10
SYD10:20 pmSydney Kingsford Smith
31h 35m
1 stop
ORD12:55 pmChicago O'Hare Intl
Nov 25
ORD2:35 pmChicago O'Hare Intl
26h 00m
1 stop
SYD9:35 amSydney Kingsford Smith
$1,197
Cathay Pacific
Nov 2
SYD10:20 pmSydney Kingsford Smith
31h 35m
1 stop
ORD12:55 pmChicago O'Hare Intl
Nov 17
ORD2:35 pmChicago O'Hare Intl
47h 40m
1 stop
SYD7:15 amSydney Kingsford Smith
$1,198

momondo Fare Finder

 
Customize your flight search to find flights from Australia to Chicago O'Hare Intl Airport 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 9, 2026.
Use the filters below to find and compare flights from Australia to Chicago O'Hare Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SydneyChicago

SYD Sydney Kingsford Smith - ORD Chicago O'Hare Intl

SYDORD

Sydney Kingsford Smith

Tue 9/8

9:20 am-7:51 am

2 stops37h 31m

Chicago O'Hare Intl

Tue 9/22

3:40 pm-7:20 am

1 stop24h 40m

$969

SydneyChicago

SYD Sydney Kingsford Smith - ORD Chicago O'Hare Intl

SYDORD

Sydney Kingsford Smith

Tue 9/8

9:20 am-7:51 am

3 stops37h 31m

Chicago O'Hare Intl

Tue 9/22

3:40 pm-7:20 am

1 stop24h 40m

$977

MelbourneChicago

MEL Melbourne - ORD Chicago O'Hare Intl

MELORD

Melbourne

Wed 11/18

7:45 am-8:01 pm

2 stops29h 16m

Chicago O'Hare Intl

Sat 11/28

3:30 pm-1:20 pm

2 stops28h 50m

$1,017

MelbourneChicago

MEL Melbourne - ORD Chicago O'Hare Intl

MELORD

Melbourne

Wed 11/18

8:00 am-7:58 pm

3 stops28h 58m

Chicago O'Hare Intl

Sat 11/28

3:30 pm-1:20 pm

2 stops28h 50m

$1,025

SydneyChicago

SYD Sydney Kingsford Smith - ORD Chicago O'Hare Intl

SYDORD

Sydney Kingsford Smith

Fri 8/28

6:25 am-3:54 pm

2 stops24h 29m

Chicago O'Hare Intl

Sat 9/12

5:50 pm-3:45 pm

2 stops30h 55m

$1,190
Quickest round-trip

SydneyChicago

SYD Sydney Kingsford Smith - ORD Chicago O'Hare Intl

SYDORD

Sydney Kingsford Smith

Thu 8/27

9:10 am-2:54 pm

1 stop20h 44m

Chicago O'Hare Intl

Fri 9/11

1:29 pm-6:25 am

1 stop25h 56m

$1,650

PerthChicago

PER Perth - ORD Chicago O'Hare Intl

PERORD

Perth

Sun 8/23

12:15 pm-7:45 am

2 stops32h 30m

Chicago O'Hare Intl

Sun 9/6

2:10 pm-12:40 am

2 stops45h 30m

$2,042

SydneyChicago

SYD Sydney Kingsford Smith - ORD Chicago O'Hare Intl

SYDORD

Sydney Kingsford Smith

Fri 8/28

10:20 am-5:05 pm

2 stops21h 45m

Chicago O'Hare Intl

Tue 9/1

2:16 pm-6:55 am

2 stops25h 39m

$2,089

SydneyChicago

SYD Sydney Kingsford Smith - ORD Chicago O'Hare Intl

SYDORD

Sydney Kingsford Smith

Fri 8/28

9:30 am-2:36 pm

1 stop20h 06m

Chicago O'Hare Intl

Tue 9/1

12:47 pm-6:55 am

2 stops27h 08m

$2,089

PerthChicago

PER Perth - ORD Chicago O'Hare Intl

PERORD

Perth

Sat 8/29

12:15 pm-7:45 am

2 stops56h 30m

Chicago O'Hare Intl

Sat 9/5

10:15 am-10:40 pm

2 stops47h 25m

$2,114

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Australia to Chicago O'Hare Intl Airport

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 Chicago O'Hare Intl Airport?

The month of November is another great option to travel to Chicago O'Hare Intl Airport, with average flight prices from Australia averaging around $1,086.

How far in advance should I book a flight from Australia to Chicago O'Hare Intl Airport?

You are more likely to see cheaper flights to Chicago O'Hare Intl Airport from Australia when booking weeks ahead of your departure date. In general, you can expect to find flights to Chicago O'Hare Intl Airport for around $1,373 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chicago O'Hare Intl Airport from Australia for as low as $875 on momondo.

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

You could potentially save up to 7% on your flight if you consider stops on a Australia to Chicago O'Hare Intl Airport flight.

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

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

Fastest flight time

23h 33m

Direct flights

None
The fastest flight from Australia to Chicago O'Hare Intl Airport takes 23h 33m
There are no direct flights from Australia to Chicago O'Hare Intl Airport. There are no popular flight routes from Australia to Chicago O'Hare Intl Airport.
Search flight deals

Frequently asked questions about flying from Australia to Chicago O'Hare Intl Airport

  • When did momondo last update prices for flights from Australia to Chicago O'Hare Intl Airport?

    Prices for flights from Australia to Chicago O'Hare Intl Airport are updated daily.

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Australia to Chicago O'Hare Intl Airport.

  • What documentation or ID do you need to fly to Chicago O'Hare Intl Airport?

    The required travel and health documents for your Chicago O'Hare Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Chicago O'Hare Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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

Compare and see reviews for airlines that fly from Australia to Chicago O'Hare Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
Air CanadaPriceFrom $862Free CancellationRating
7.1
11,458 reviews
Search Air Canada flights
United AirlinesPriceFrom $902Free CancellationRating
7.4
10,097 reviews
Search United Airlines flights
Japan AirlinesPriceFrom $965Free CancellationRating
8.3
1,893 reviews
Search Japan Airlines flights
Qantas AirwaysPriceFrom $970Free CancellationRating
7.5
1,081 reviews
Search Qantas Airways flights

Traveling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Lake Geneva
Schaumburg
Merrillville
Rockford
South Haven
Gurnee
Rosemont
Oak Brook
Orland Park
Naperville
Joliet
New Buffalo
Kenosha
Hammond
Racine
Aurora
Janesville
Elgin
South Holland
Evanston

Why use momondo?

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

Finding the right flight to Chicago from Australia is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Chicago quick and easy, saving you time and money.

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

Yes. momondo enables you to select and highlight flights to Chicago from Australia with this policy.

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

Once all potential Australia to Chicago 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 Australia to Chicago right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Chicago from Australia. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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