Look for other cheap flights to Chicago

$811 Cheap flights to Chicago

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight to Chicago departing on 5/3. 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 Australia to Chicago

Cheap return flights

Enter your travel dates to find the best prices.
Air New Zealand Logo
12:10 - 18:55MEL-ORD
23h 45m2 stops
Air New Zealand Logo
14:35 - 10:55ORD-MEL
28h 20m2 stops
$1,556Air New Zealand
Find Deal
Fri, 20 Feb - Sun, 8 Mar
Cathay Pacific Logo
12:10 - 13:55BNE-ORD
40h 45m1 stop
Cathay Pacific Logo
16:00 - 22:25ORD-BNE
39h 25m1 stop
$1,610Cathay Pacific
Find Deal
Tue, 17 Mar - Wed, 1 Apr
Air New Zealand Logo
10:35 - 20:25MEL-ORD
26h 50m2 stops
Air New Zealand Logo
15:53 - 10:55ORD-MEL
26h 02m2 stops
$1,623Air New Zealand
Find Deal
Thu, 5 Feb - Mon, 9 Feb
American Airlines Logo
19:40 - 17:52BNE-ORD
38h 12m1 stop
American Airlines Logo
11:55 - 06:30ORD-BNE
26h 35m1 stop
$1,776American Airlines
Find Deal
Thu, 4 Dec - Mon, 8 Dec
Air Canada Logo
07:45 - 19:45MEL-ORD
29h 00m3 stops
Air Canada Logo
14:00 - 15:35ORD-MEL
32h 35m3 stops
$1,897Air Canada
Find Deal
Thu, 5 Feb - Mon, 9 Feb
Air Canada Logo
11:20 - 11:06SYD-ORD
40h 46m2 stops
Air Canada Logo
15:35 - 09:35ORD-SYD
25h 00m1 stop
$1,934Air Canada
Find Deal
Tue, 3 Feb - Fri, 20 Feb
United Airlines Logo
11:40 - 16:59BNE-ORD
21h 19m2 stops
United Airlines Logo
06:55 - 07:30ORD-BNE
32h 35m1 stop
$2,042United Airlines
Find Deal
Thu, 4 Dec - Mon, 8 Dec
United Airlines Logo
11:40 - 21:54BNE-ORD
26h 14m2 stops
United Airlines Logo
09:00 - 07:30ORD-BNE
30h 30m1 stop
$2,307United Airlines
Find Deal
Mon, 22 Dec - Tue, 30 Dec
American Airlines Logo
07:50 - 19:43ADL-ORD
28h 23m2 stops
American Airlines Logo
07:00 - 13:40ORD-ADL
38h 10m2 stops
$2,380American Airlines
Find Deal
Wed, 18 Feb - Sun, 22 Feb
Qantas Airways Logo
20:40 - 15:37TSV-ORD
34h 57m2 stops
Qantas Airways Logo
15:23 - 20:55ORD-TSV
37h 32m2 stops
$3,436Qantas Airways
Find Deal
Wed, 7 Jan - Wed, 14 Jan

momondo Fare Finder

 
Locate flights to Chicago that fit your budget, with regularly updated fares and availability. In the last 7 days, momondo users made a total of 78,305 searches and data was last updated on 25 November 2025.
Use the filters below to find and compare flights to Chicago that are best for you.

Fly from

Route

Depart

Return

Price

MelbourneChicago

MEL - ORD

MELORD

Melbourne

Fri 20/2

12:10-18:55

2 stops23h 45m

Chicago O'Hare Intl

Sun 8/3

14:35-10:55

2 stops28h 20m

$1,556

BrisbaneChicago

BNE - ORD

BNEORD

Brisbane

Tue 17/3

12:10-13:55

1 stop40h 45m

Chicago O'Hare Intl

Wed 1/4

16:00-22:25

1 stop39h 25m

$1,610

MelbourneChicago

MEL - ORD

MELORD

Melbourne

Thu 5/2

10:35-20:25

2 stops26h 50m

Chicago O'Hare Intl

Mon 9/2

15:53-10:55

2 stops26h 02m

$1,623

BrisbaneChicago

BNE - ORD

BNEORD

Brisbane

Thu 4/12

19:40-17:52

1 stop38h 12m

Chicago O'Hare Intl

Mon 8/12

11:55-06:30

1 stop26h 35m

$1,776

MelbourneChicago

MEL - ORD

MELORD

Melbourne

Thu 5/2

07:45-19:45

3 stops29h 00m

Chicago O'Hare Intl

Mon 9/2

14:00-15:35

3 stops32h 35m

$1,897

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Tue 3/2

11:20-11:06

2 stops40h 46m

Chicago O'Hare Intl

Fri 20/2

15:35-09:35

1 stop25h 00m

$1,934

BrisbaneChicago

BNE - ORD

BNEORD

Brisbane

Thu 4/12

11:40-16:59

2 stops21h 19m

Chicago O'Hare Intl

Mon 8/12

06:55-07:30

1 stop32h 35m

$2,042

BrisbaneChicago

BNE - ORD

BNEORD

Brisbane

Mon 22/12

11:40-21:54

2 stops26h 14m

Chicago O'Hare Intl

Tue 30/12

09:00-07:30

1 stop30h 30m

$2,307

AdelaideChicago

ADL - ORD

ADLORD

Adelaide

Wed 18/2

07:50-19:43

2 stops28h 23m

Chicago O'Hare Intl

Sun 22/2

07:00-13:40

2 stops38h 10m

$2,380

TownsvilleChicago

TSV - ORD

TSVORD

Townsville

Wed 7/1

20:40-15:37

2 stops34h 57m

Chicago O'Hare Intl

Wed 14/1

15:23-20:55

2 stops37h 32m

$3,436

Flights are sorted by cheapest return flights first.

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

Chicago flights insights and trends

Explore insights for your Chicago flight to craft the best travel plan

What is the cheapest month to fly to Chicago?

If you don’t want to visit Chicago in March, then you should wait until May to fly from Australia, when ticket prices are also cheap, with an average price of $1,146.

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

Our data shows that Tuesday is the least expensive day to fly to Chicago. Tickets to fly out on this day can be as low as $1,738. Flights from Australia to Chicago on a Saturday will generally be more expensive and average around $2,047. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

Our data shows that the cheapest Australia to Chicago flights are usually those with departure times in the afternoon. Our users have found flights to Chicago in the afternoon for as low as $1,735. Flights in the morning are often more expensive, with an average ticket price of $1,920.

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

You are more likely to see cheaper flights to Chicago from Australia when booking weeks ahead of your departure date. In general, you can expect to find flights to Chicago for around $1,510 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chicago from Australia for as low as $1,201 on momondo.

Cheapest flights to Chicago

Find the cheapest flights to Chicago from your nearest city or airport
CHEAPEST MONTH TO FLY TO CHICAGO FROM SYDNEYMarch27% cheaperFlying from Sydney to Chicago costs on average just $1,138 in March
MOST EXPENSIVE MONTH TO FLY TO CHICAGO FROM SYDNEYDecember48% more expensiveIt costs about $2,293 for flights to Chicago from Sydney in December
MOST POPULAR MONTH TO FLY TO CHICAGO FROM SYDNEYJuly305% more users visitedMore momondo users searched in flights to Chicago from Sydney in July than any other month

Cheap Chicago flight deals and tips

Summary info about Chicago flight prices, duration and airlines

Best One-Way Price

$811

Best Round-Trip Price

$1,556

Fastest flight time

24h 37m

Popular in

December
The best one-way flight price to Chicago from Australia in the last 72 hours is $811 (Sydney Kingsford Smith to Chicago O'Hare Intl).
The best round-trip flight price to Chicago from Australia in the last 72 hours is $1,556 (Melbourne to Chicago O'Hare Intl).
The fastest flight to Chicago from Australia takes 24h 37m (Sydney Kingsford Smith to Chicago O'Hare Intl).
December has the highest demand for flights to Chicago, with a 11% price increase on average.

Frequently asked questions about flying to Chicago

When is it best to fly to Chicago to go sightseeing?

Sights like Millennium Park and Art Institute of Chicago are most enjoyable in months with moderate weather conditions like May or June. Plan your flight to Chicago for those months.

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

We recommend purchasing flights from Australia to Chicago 82 days ahead of your departure date because this is when momondo users tend to see the best flight rates. On average, our users have found flights to Chicago for $1,548.

Is there an alternative airport near Chicago?

Finding an alternative and possibly cheaper destination airport near Chicago is possible. If you are planning a flight to Chicago, consider booking flights to Chicago Midway Airport (14 km from Chicago city centre) or Chicago Greater Rockford Airport (126 km from Chicago city centre).

Is there a cheaper alternative to flying into Chicago?

You can find deals at Chicago Greater Rockford Airport for $148 on average, but that price can change based on your departure airport. To save money, try momondo’s Airport-to-Airport Pricing Tool.

Are there flights to Near North Side?

Yes. To go to Near North Side, book a flight to Chicago O'Hare Intl which is in Chicago and is about 24.7 km away from Near North Side.

What’s the closest airport to River North?

The closest airport to River North is 24.1 km away - Chicago’s Chicago O'Hare Intl airport.

When did momondo last update prices for flights to Chicago?

Prices for flights to Chicago refresh daily.

How many operators does momondo search for flights to Chicago?

How old do you have to be to fly to Chicago?

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 stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel to Chicago.

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

The travel and health documents required for your trip to Chicago 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 licence, and a passport valid for six-months after you plan to arrive at Chicago. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

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

It is quick and easy to find flights to Chicago on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Chicago that suits you.

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

Yes. momondo allows you to filter the results for flights to Chicago to just show those with flexible booking policies.

How can momondo help me find flights to Chicago?

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 to Chicago.

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

Yes. momondo can track flight prices for Chicago and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Thu 25/12
Thu 1/1

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Popular routes according to searches in the past day on momondo