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 May 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.

$551 Cheap Flights from Chicago to Australia in 2026

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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.

5:50 pm - 7:20 pm

ORD

MEL

34h 30m

2 stops

7:30 am - 9:02 pm

MEL

ORD

28h 32m

2 stops

$1,193Multiple Airlines

Tue, Aug 11 - Sat, Aug 15

7:20 am - 12:25 pm

ORD

MEL

38h 05m

3 stops

1:30 pm - 6:17 am

MEL

ORD

31h 47m

2 stops

$1,238Multiple Airlines

Mon, Jun 29 - Mon, Jul 6

3:40 pm - 7:05 am

ORD

BNE

24h 25m

1 stop

10:15 am - 2:36 pm

BNE

ORD

19h 21m

1 stop

$1,281Air Canada

Mon, Aug 10 - Tue, Aug 18

11:05 am - 7:05 am

ORD

BNE

29h 00m

2 stops

10:15 am - 2:36 pm

BNE

ORD

19h 21m

1 stop

$1,285Air Canada

Mon, Aug 10 - Tue, Aug 18

8:50 am - 9:25 am

ORD

SYD

33h 35m

2 stops

11:45 am - 8:40 am

SYD

ORD

35h 55m

1 stop

$1,292ANA

Wed, Aug 26 - Tue, Sep 1

5:45 pm - 9:25 am

ORD

SYD

24h 40m

1 stop

11:45 am - 8:40 am

SYD

ORD

35h 55m

1 stop

$1,293ANA

Mon, Aug 24 - Mon, Sep 7

8:05 am - 6:45 am

ORD

MEL

31h 40m

1 stop

9:45 am - 11:00 pm

MEL

ORD

28h 15m

1 stop

$1,300Qantas Airways

Mon, Jun 29 - Mon, Jul 6

1:05 pm - 9:50 am

MDW

MEL

27h 45m

2 stops

12:00 pm - 6:37 pm

MEL

MDW

23h 37m

2 stops

$1,414Delta

Sun, Nov 15 - Wed, Nov 25

1:27 pm - 6:50 am

MDW

SYD

26h 23m

2 stops

9:15 am - 6:33 pm

SYD

MDW

24h 18m

2 stops

$1,414Delta

Wed, Aug 5 - Sun, Aug 30

3:50 pm - 9:25 am

ORD

ADL

27h 05m

2 stops

10:10 am - 8:11 pm

ADL

ORD

24h 31m

2 stops

$1,435Qantas Airways

Wed, Jun 24 - Wed, Jul 1

Delta flights from Chicago to Australia

Our best Delta deals on Chicago to Australia flight tickets

Delta

Jun 7

ORD6:30 pmChicago O'Hare Intl

21h 20m

1 stop

SYD6:50 amSydney Kingsford Smith

Jun 21

SYD9:15 amSydney Kingsford Smith

23h 15m

1 stop

ORD5:30 pmChicago O'Hare Intl

$1,410

Delta

Nov 22

ORD2:55 pmChicago O'Hare Intl

25h 55m

1 stop

MEL9:50 amMelbourne

Nov 30

MEL12:00 pmMelbourne

22h 21m

1 stop

ORD5:21 pmChicago O'Hare Intl

$1,411

Delta

Aug 5

MDW1:27 pmChicago Midway

26h 23m

2 stops

SYD6:50 amSydney Kingsford Smith

Aug 30

SYD9:15 amSydney Kingsford Smith

24h 18m

2 stops

MDW6:33 pmChicago Midway

$1,414

Air Canada flights from Chicago to Australia

Our best Air Canada deals on Chicago to Australia flight tickets

Air Canada

Aug 10

ORD3:40 pmChicago O'Hare Intl

24h 25m

1 stop

BNE7:05 amBrisbane

Aug 18

BNE10:15 amBrisbane

19h 21m

1 stop

ORD2:36 pmChicago O'Hare Intl

$1,281

Air Canada

Aug 10

ORD11:05 amChicago O'Hare Intl

29h 00m

2 stops

BNE7:05 amBrisbane

Aug 18

BNE10:15 amBrisbane

19h 21m

1 stop

ORD2:36 pmChicago O'Hare Intl

$1,285

Air Canada

Aug 10

ORD11:05 amChicago O'Hare Intl

29h 00m

2 stops

BNE7:05 amBrisbane

Aug 18

BNE10:15 amBrisbane

24h 50m

2 stops

ORD8:05 pmChicago O'Hare Intl

$1,288

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoMelbourne

ORD - MEL

ORDMEL

Chicago O'Hare Intl

Tue 8/11

5:50 pm-7:20 pm

2 stops34h 30m

Melbourne

Sat 8/15

7:30 am-9:02 pm

2 stops28h 32m

$1,193

ChicagoMelbourne

ORD - MEL

ORDMEL

Chicago O'Hare Intl

Mon 6/29

7:20 am-12:25 pm

3 stops38h 05m

Melbourne

Mon 7/6

1:30 pm-6:17 am

2 stops31h 47m

$1,238

Quickest round-trip

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Mon 8/10

3:40 pm-7:05 am

1 stop24h 25m

Brisbane

Tue 8/18

10:15 am-2:36 pm

1 stop19h 21m

$1,281

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Mon 8/10

11:05 am-7:05 am

2 stops29h 00m

Brisbane

Tue 8/18

10:15 am-2:36 pm

1 stop19h 21m

$1,285

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Wed 8/26

8:50 am-9:25 am

2 stops33h 35m

Sydney Kingsford Smith

Tue 9/1

11:45 am-8:40 am

1 stop35h 55m

$1,292

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Mon 8/24

5:45 pm-9:25 am

1 stop24h 40m

Sydney Kingsford Smith

Mon 9/7

11:45 am-8:40 am

1 stop35h 55m

$1,293

ChicagoMelbourne

ORD - MEL

ORDMEL

Chicago O'Hare Intl

Mon 6/29

8:05 am-6:45 am

1 stop31h 40m

Melbourne

Mon 7/6

9:45 am-11:00 pm

1 stop28h 15m

$1,300

ChicagoMelbourne

MDW - MEL

MDWMEL

Chicago Midway

Sun 11/15

1:05 pm-9:50 am

2 stops27h 45m

Melbourne

Wed 11/25

12:00 pm-6:37 pm

2 stops23h 37m

$1,414

ChicagoSydney

MDW - SYD

MDWSYD

Chicago Midway

Wed 8/5

1:27 pm-6:50 am

2 stops26h 23m

Sydney Kingsford Smith

Sun 8/30

9:15 am-6:33 pm

2 stops24h 18m

$1,414

ChicagoAdelaide

ORD - ADL

ORDADL

Chicago O'Hare Intl

Wed 6/24

3:50 pm-9:25 am

2 stops27h 05m

Adelaide

Wed 7/1

10:10 am-8:11 pm

2 stops24h 31m

$1,435

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 August instead. Flights to Australia in August, while not as cheap as those in November, still average around $138.

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 $1,390 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 $1,126 on momondo.

Can stopping save me money on Chicago to Australia flights?

You could potentially save up to 14% 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	20h 17m
Direct flights	None

The fastest flight from Chicago to Australia takes 20h 17m

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 May 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 11,642 reviews	Search American Airlines flights
Delta	PriceFrom $229	Free Cancellation	Rating 7.9 8,412 reviews	Search Delta flights
Air Canada	PriceFrom $712	Free Cancellation	Rating 7.1 11,107 reviews	Search Air Canada flights
Fiji Airways	PriceFrom $716	Free Cancellation	Rating 8.1 243 reviews	Search Fiji Airways flights
Qantas Airways	PriceFrom $836	Free Cancellation	Rating 7.5 1,042 reviews	Search Qantas Airways flights
United Airlines	PriceFrom $870	Free Cancellation	Rating 7.4 9,768 reviews	Search United Airlines flights
ANA	PriceFrom $1,193	Free Cancellation	Rating 8.3 1,219 reviews	Search ANA flights
Air New Zealand	PriceFrom $1,217	Free Cancellation	Rating 8.0 648 reviews	Search Air New Zealand flights
Qatar Airways	PriceFrom $1,263	Free Cancellation	Rating 7.4 3,729 reviews	Search Qatar Airways flights
Cathay Pacific	PriceFrom $1,502	Free Cancellation	Rating 7.6 1,352 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.