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Look for other cheap flights to Chicago

$675 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 14/3. 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 Canada Logo
10:00 - 14:45
BNE
-
ORD
19h 45m
1 stop
Air Canada Logo
08:45 - 07:05
ORD
-
BNE
31h 20m
2 stops
$1,275Air Canada
Wed, 6 May - Tue, 2 Jun
American Airlines Logo
19:40 - 18:04
BNE
-
ORD
37h 24m
2 stops
American Airlines Logo
13:14 - 05:00
ORD
-
BNE
24h 46m
2 stops
$1,292American Airlines
Tue, 17 Mar - Wed, 1 Apr
American Airlines Logo
19:40 - 15:48
BNE
-
ORD
35h 08m
2 stops
American Airlines Logo
10:49 - 05:00
ORD
-
BNE
27h 11m
2 stops
$1,296American Airlines
Tue, 17 Mar - Wed, 1 Apr
Air New Zealand Logo
12:10 - 00:45
MEL
-
ORD
27h 35m
2 stops
Air New Zealand Logo
16:00 - 10:55
ORD
-
MEL
27h 55m
2 stops
$1,473Air New Zealand
Thu, 30 Apr - Tue, 5 May
Air New Zealand Logo
11:45 - 20:23
SYD
-
ORD
24h 38m
2 stops
Air New Zealand Logo
14:35 - 08:45
ORD
-
SYD
26h 10m
2 stops
$1,482Air New Zealand
Tue, 10 Mar - Tue, 17 Mar
United Airlines Logo
11:30 - 17:05
MEL
-
ORD
22h 35m
2 stops
United Airlines Logo
16:05 - 09:30
ORD
-
MEL
24h 25m
2 stops
$1,498United Airlines
Tue, 24 Feb - Tue, 3 Mar
Japan Airlines Logo
10:30 - 08:35
PER
-
ORD
35h 05m
2 stops
Japan Airlines Logo
01:05 - 00:40
ORD
-
PER
58h 35m
2 stops
$1,842Japan Airlines
Mon, 9 Mar - Sun, 12 Apr
Japan Airlines Logo
10:30 - 13:45
PER
-
ORD
41h 15m
2 stops
Japan Airlines Logo
11:35 - 23:55
ORD
-
PER
47h 20m
2 stops
$1,856Japan Airlines
Thu, 5 Mar - Mon, 9 Mar
Cathay Pacific Logo
11:25 - 12:55
CNS
-
ORD
41h 30m
1 stop
Cathay Pacific Logo
14:35 - 10:45
ORD
-
CNS
52h 10m
2 stops
$2,019Cathay Pacific
Thu, 12 Feb - Mon, 16 Feb
Cathay Pacific Logo
11:25 - 12:55
CNS
-
ORD
41h 30m
1 stop
Cathay Pacific Logo
14:35 - 10:45
ORD
-
CNS
52h 10m
2 stops
$2,023Cathay Pacific
Thu, 12 Feb - Mon, 16 Feb

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 29 January 2026.
Use the filters below to find and compare flights to Chicago that are best for you.

Fly from

Route

Depart

Return

Price

BrisbaneChicago

BNE - ORD

BNEORD

Brisbane

Wed 6/5

10:00-14:45

1 stop19h 45m

Chicago O'Hare Intl

Tue 2/6

08:45-07:05

2 stops31h 20m

$1,275

BrisbaneChicago

BNE - ORD

BNEORD

Brisbane

Tue 17/3

19:40-18:04

2 stops37h 24m

Chicago O'Hare Intl

Wed 1/4

13:14-05:00

2 stops24h 46m

$1,292

BrisbaneChicago

BNE - ORD

BNEORD

Brisbane

Tue 17/3

19:40-15:48

2 stops35h 08m

Chicago O'Hare Intl

Wed 1/4

10:49-05:00

2 stops27h 11m

$1,296

MelbourneChicago

MEL - ORD

MELORD

Melbourne

Thu 30/4

12:10-00:45

2 stops27h 35m

Chicago O'Hare Intl

Tue 5/5

16:00-10:55

2 stops27h 55m

$1,473

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Tue 10/3

11:45-20:23

2 stops24h 38m

Chicago O'Hare Intl

Tue 17/3

14:35-08:45

2 stops26h 10m

$1,482

MelbourneChicago

MEL - ORD

MELORD

Melbourne

Tue 24/2

11:30-17:05

2 stops22h 35m

Chicago O'Hare Intl

Tue 3/3

16:05-09:30

2 stops24h 25m

$1,498

PerthChicago

PER - ORD

PERORD

Perth

Mon 9/3

10:30-08:35

2 stops35h 05m

Chicago O'Hare Intl

Sun 12/4

01:05-00:40

2 stops58h 35m

$1,842

PerthChicago

PER - ORD

PERORD

Perth

Thu 5/3

10:30-13:45

2 stops41h 15m

Chicago O'Hare Intl

Mon 9/3

11:35-23:55

2 stops47h 20m

$1,856

CairnsChicago

CNS - ORD

CNSORD

Cairns

Thu 12/2

11:25-12:55

1 stop41h 30m

Chicago O'Hare Intl

Mon 16/2

14:35-10:45

2 stops52h 10m

$2,019

CairnsChicago

CNS - ORD

CNSORD

Cairns

Thu 12/2

11:25-12:55

1 stop41h 30m

Chicago O'Hare Intl

Mon 16/2

14:35-10:45

2 stops52h 10m

$2,023

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 $1,078.

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 $1,368 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 $1,088 on momondo.

Cheapest flights to Chicago

Find the cheapest flights to Chicago from your nearest city or airport
Find flights from Sydney to Chicago O'Hare Intl Airport
CHEAPEST MONTH TO FLY TO CHICAGO FROM SYDNEYMarch24% cheaperFlying from Sydney to Chicago costs on average just $1,058 in March
MOST EXPENSIVE MONTH TO FLY TO CHICAGO FROM SYDNEYDecember37% more expensiveIt costs about $1,909 for flights to Chicago from Sydney in December
MOST POPULAR MONTH TO FLY TO CHICAGO FROM SYDNEYJuly314% 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

$675

Best Round-Trip Price

$1,275

Fastest flight time

24h 06m

Popular in

December
The best one-way flight price to Chicago from Australia in the last 72 hours is $675 (Adelaide to Chicago O'Hare Intl).
Search Deals
The best round-trip flight price to Chicago from Australia in the last 72 hours is $1,275 (Brisbane to Chicago O'Hare Intl).
Search Deals
The fastest flight to Chicago from Australia takes 24h 06m (Sydney Kingsford Smith to Chicago Midway).
Search Deals
December has the highest demand for flights to Chicago, with a 5% price increase on average.
Search Deals

Frequently asked questions about flying to Chicago

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

Sights like Chicago Riverwalk, 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 83 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 $1,387.

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 $136 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 Grand Boulevard?

Yes. To go to Grand Boulevard, book a flight to Chicago O'Hare Intl which is in Chicago and is about 30.1 km away from Grand Boulevard.

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?

There are 10 operators available for flights to Chicago as of January 2026.

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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Find better results for your trip to Chicago

Popular Flights to Chicago

Popular routes according to searches in the past day on momondo
Sydney Kingsford Smith to Chicago Flightsfrom $1,038
Brisbane to Chicago Flightsfrom $1,026
Melbourne to Chicago Flightsfrom $1,060
Adelaide to Chicago Flightsfrom $994
Perth to Chicago Flightsfrom $1,315
Cairns to Chicago Flightsfrom $1,427
Coolangatta Gold Coast to Chicago Flightsfrom $1,357
Townsville to Chicago Flightsfrom $1,663