What is the cheapest airline that flies from Chicago to Australia?

ANA, Air Canada, and Qantas Airways are the most popular carriers operating from Chicago to Australia

What airlines fly to Australia?

Qantas Airways, United Airlines and Air Canada are the top three most popular airlines that fly to Australia from Chicago according to our data. Qantas Airways is the first choice among our users, with 44% of people opting to fly with this airline when traveling to Australia. Keep in mind that there are 10 different airlines that fly to Australia on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Chicago to Australia?

Prices for flights from Chicago to Australia were last updated today.

How many operators does momondo search for flights from Chicago to Australia?

The number of operators available for flights from Chicago to Australia is 10 as of June 2026.

How old do you have to be to fly from Chicago 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 to Australia.

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

The travel and health documents required for your trip to Australia can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Australia. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$528 Cheap Flights from Chicago to Australia in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Chicago to Australia

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

9:20 am - 10:35 am

ORD

BNE

34h 15m

3 stops

11:35 am - 6:17 am

BNE

ORD

33h 42m

2 stops

$996Multiple Airlines

Wed, Aug 5 - Wed, Aug 12

11:06 am - 10:35 am

MDW

BNE

32h 29m

3 stops

11:35 am - 9:51 am

BNE

MDW

37h 16m

3 stops

$1,021Multiple Airlines

Wed, Aug 5 - Wed, Aug 12

8:30 pm - 7:10 pm

ORD

SYD

31h 40m

2 stops

11:45 am - 4:45 am

SYD

ORD

32h 00m

2 stops

$1,213ANA

Mon, Aug 10 - Wed, Aug 26

8:30 pm - 7:10 pm

ORD

SYD

31h 40m

2 stops

11:45 am - 8:40 am

SYD

ORD

35h 55m

1 stop

$1,235ANA

Mon, Aug 10 - Wed, Aug 26

3:40 pm - 7:05 am

ORD

BNE

24h 25m

1 stop

10:00 am - 2:36 pm

BNE

ORD

19h 36m

1 stop

$1,363Air Canada

Mon, Aug 3 - Mon, Aug 10

3:40 pm - 7:05 am

ORD

BNE

24h 25m

1 stop

10:00 am - 8:05 pm

BNE

ORD

25h 05m

2 stops

$1,364Air Canada

Mon, Aug 3 - Mon, Aug 10

1:27 pm - 6:50 am

MDW

SYD

26h 23m

2 stops

9:15 am - 6:01 pm

SYD

MDW

23h 46m

2 stops

$1,587Delta

Mon, Aug 10 - Wed, Aug 26

1:47 pm - 7:50 am

MDW

MEL

27h 03m

2 stops

11:00 am - 6:37 pm

MEL

MDW

23h 37m

2 stops

$1,612Delta

Fri, Sep 18 - Sun, Oct 11

5:16 pm - 3:00 pm

ORD

CNS

30h 44m

2 stops

3:45 pm - 7:10 am

CNS

ORD

30h 25m

2 stops

$1,700American Airlines

Fri, Aug 14 - Sun, Aug 30

7:00 pm - 12:55 pm

ORD

CNS

26h 55m

2 stops

3:45 pm - 7:10 am

CNS

ORD

30h 25m

2 stops

$1,705American Airlines

Sat, Aug 15 - Sun, Aug 30

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

ANA flights from Chicago to Australia

Our best ANA deals on Chicago to Australia flight tickets

ANA

Aug 10

ORD8:30 pmChicago O'Hare Intl

31h 40m

2 stops

SYD7:10 pmSydney Kingsford Smith

Aug 26

SYD11:45 amSydney Kingsford Smith

32h 00m

2 stops

ORD4:45 amChicago O'Hare Intl

$1,213

ANA

Aug 10

ORD8:30 pmChicago O'Hare Intl

31h 40m

2 stops

SYD7:10 pmSydney Kingsford Smith

Aug 26

SYD11:45 amSydney Kingsford Smith

35h 55m

1 stop

ORD8:40 amChicago O'Hare Intl

$1,235

ANA

Aug 10

ORD5:00 pmChicago O'Hare Intl

35h 10m

2 stops

SYD7:10 pmSydney Kingsford Smith

Aug 26

SYD11:45 amSydney Kingsford Smith

32h 00m

2 stops

ORD4:45 amChicago O'Hare Intl

$1,236

Delta flights from Chicago to Australia

Our best Delta deals on Chicago to Australia flight tickets

Delta

Aug 10

MDW1:27 pmChicago Midway

26h 23m

2 stops

SYD6:50 amSydney Kingsford Smith

Aug 26

SYD9:15 amSydney Kingsford Smith

23h 46m

2 stops

MDW6:01 pmChicago Midway

$1,587

Delta

Aug 5

MDW12:46 pmChicago Midway

27h 04m

2 stops

SYD6:50 amSydney Kingsford Smith

Aug 30

SYD9:15 amSydney Kingsford Smith

23h 46m

2 stops

MDW6:01 pmChicago Midway

$1,612

Delta

Jun 22

MDW1:49 pmChicago Midway

26h 01m

2 stops

SYD6:50 amSydney Kingsford Smith

Aug 2

SYD9:15 amSydney Kingsford Smith

28h 01m

2 stops

MDW10:16 pmChicago Midway

$1,883

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Wed 8/5

9:20 am-10:35 am

3 stops34h 15m

Brisbane

Wed 8/12

11:35 am-6:17 am

2 stops33h 42m

$996

ChicagoBrisbane

MDW - BNE

MDWBNE

Chicago Midway

Wed 8/5

11:06 am-10:35 am

3 stops32h 29m

Brisbane

Wed 8/12

11:35 am-9:51 am

3 stops37h 16m

$1,021

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Mon 8/10

8:30 pm-7:10 pm

2 stops31h 40m

Sydney Kingsford Smith

Wed 8/26

11:45 am-4:45 am

2 stops32h 00m

$1,213

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Mon 8/10

8:30 pm-7:10 pm

2 stops31h 40m

Sydney Kingsford Smith

Wed 8/26

11:45 am-8:40 am

1 stop35h 55m

$1,235

Quickest round-trip

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Mon 8/3

3:40 pm-7:05 am

1 stop24h 25m

Brisbane

Mon 8/10

10:00 am-2:36 pm

1 stop19h 36m

$1,363

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Mon 8/3

3:40 pm-7:05 am

1 stop24h 25m

Brisbane

Mon 8/10

10:00 am-8:05 pm

2 stops25h 05m

$1,364

ChicagoSydney

MDW - SYD

MDWSYD

Chicago Midway

Mon 8/10

1:27 pm-6:50 am

2 stops26h 23m

Sydney Kingsford Smith

Wed 8/26

9:15 am-6:01 pm

2 stops23h 46m

$1,587

ChicagoMelbourne

MDW - MEL

MDWMEL

Chicago Midway

Fri 9/18

1:47 pm-7:50 am

2 stops27h 03m

Melbourne

Sun 10/11

11:00 am-6:37 pm

2 stops23h 37m

$1,612

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Fri 8/14

5:16 pm-3:00 pm

2 stops30h 44m

Cairns

Sun 8/30

3:45 pm-7:10 am

2 stops30h 25m

$1,700

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Sat 8/15

7:00 pm-12:55 pm

2 stops26h 55m

Cairns

Sun 8/30

3:45 pm-7:10 am

2 stops30h 25m

$1,705

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Chicago 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

Prices

Airlines

What is the cheapest month to fly to Australia?

The month of November is, on average, the cheapest month to fly to Australia from Chicago, with most prices found around $113. If you aren’t able to travel during the month of November, then book flights to Australia from Chicago during May instead. Flights to Australia in May, while not as cheap as those in November, still average around $142.

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

You are more likely to see cheaper flights to Australia from Chicago when booking weeks ahead of your departure date. In general, you can expect to find flights to Australia for around $1,408 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Australia from Chicago for as low as $1,154 on momondo.

Can stopping save me money on Chicago to Australia flights?

You could potentially save up to 25% on your flight if you consider stops on a Chicago to Australia flight.

Cheap Chicago to Australia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago to Australia

Fastest flight time	21h 45m
Direct flights	None

The fastest flight from Chicago to Australia takes 21h 45m

There are no direct flights from Chicago to Australia. There are no popular flight routes from Chicago to Australia.

Search flight deals

Frequently asked questions about flying from Chicago to Australia

When did momondo last update prices for flights from Chicago to Australia?
Prices for flights from Chicago to Australia were last updated today.
How many operators does momondo search for flights from Chicago to Australia?
The number of operators available for flights from Chicago to Australia is 10 as of June 2026.
How old do you have to be to fly from Chicago 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 to Australia.
What documentation or ID do you need to fly to Australia?
The travel and health documents required for your trip to Australia can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Australia. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Chicago to Australia

Compare and see reviews for airlines that fly from Chicago to Australia with momondo

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $198	Free Cancellation	Rating 7.1 11,722 reviews	Search American Airlines flights
Delta	PriceFrom $261	Free Cancellation	Rating 7.8 8,423 reviews	Search Delta flights
Air Canada	PriceFrom $712	Free Cancellation	Rating 7.1 11,229 reviews	Search Air Canada flights
Fiji Airways	PriceFrom $716	Free Cancellation	Rating 8.1 244 reviews	Search Fiji Airways flights
Qantas Airways	PriceFrom $836	Free Cancellation	Rating 7.5 1,047 reviews	Search Qantas Airways flights
United Airlines	PriceFrom $870	Free Cancellation	Rating 7.4 9,866 reviews	Search United Airlines flights
ANA	PriceFrom $1,193	Free Cancellation	Rating 8.3 1,248 reviews	Search ANA flights
Qatar Airways	PriceFrom $1,263	Free Cancellation	Rating 7.3 3,727 reviews	Search Qatar Airways flights
Air New Zealand	PriceFrom $1,264	Free Cancellation	Rating 8.0 645 reviews	Search Air New Zealand flights
Cathay Pacific	PriceFrom $1,560	Free Cancellation	Rating 7.6 1,388 reviews	Search Cathay Pacific flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Australia from Chicago.

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

Flights from Chicago to Australia with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Chicago to Australia.

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

Of course. momondo tracks the price of Chicago to Australia flights. All you need is a valid email address and we will do the rest; it is that quick and easy.