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Look for other cheap flights to Chicago O'Hare Intl

$985 Cheap flights to Chicago O'Hare Intl Airport

1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from Australia to Chicago O'Hare Intl Airport

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
14:00 - 05:13SYD  Sydney Kingsford Smith-ORD Chicago O'Hare Intl
32h 13m3 stops Nadi Los Angeles Las Vegas Harry Reid Intl
Multiple Airlines Logo
06:30 - 12:35ORD  Chicago O'Hare Intl-SYD Sydney Kingsford Smith
37h 05m3 stops Denver Intl Los Angeles Nadi
$1,376Multiple Airlines
Mon, 9 Nov - Mon, 16 Nov
Multiple Airlines Logo
14:15 - 05:16SYD  Sydney Kingsford Smith-ORD Chicago O'Hare Intl
31h 01m3 stops Nadi Los Angeles Las Vegas Harry Reid Intl
Multiple Airlines Logo
06:30 - 12:35ORD  Chicago O'Hare Intl-SYD Sydney Kingsford Smith
38h 05m3 stops Denver Intl Los Angeles Nadi
$1,564Multiple Airlines
Fri, 16 Oct - Sat, 31 Oct
Cathay Pacific Logo
12:15 - 12:30BNE  Brisbane-ORD Chicago O'Hare Intl
40h 15m1 stop Hong Kong Intl
Cathay Pacific Logo
14:10 - 23:20ORD  Chicago O'Hare Intl-BNE Brisbane
41h 10m1 stop Hong Kong Intl
$1,596Cathay Pacific
Mon, 9 Nov - Mon, 16 Nov
Cathay Pacific Logo
00:50 - 12:30BNE  Brisbane-ORD Chicago O'Hare Intl
27h 40m1 stop Hong Kong Intl
Cathay Pacific Logo
14:10 - 23:20ORD  Chicago O'Hare Intl-BNE Brisbane
41h 10m1 stop Hong Kong Intl
$1,596Cathay Pacific
Mon, 9 Nov - Tue, 17 Nov
Air New Zealand Logo
07:30 - 22:59SYD  Sydney Kingsford Smith-ORD Chicago O'Hare Intl
32h 29m2 stops Auckland Intl Los Angeles
Air New Zealand Logo
10:34 - 10:35ORD  Chicago O'Hare Intl-SYD Sydney Kingsford Smith
31h 01m2 stops Houston George Bush Intcntl Auckland Intl
$1,710Air New Zealand
Tue, 10 Nov - Tue, 17 Nov
Air New Zealand Logo
12:10 - 22:59MEL  Melbourne-ORD Chicago O'Hare Intl
27h 49m2 stops Auckland Intl Los Angeles
Air New Zealand Logo
14:22 - 13:45ORD  Chicago O'Hare Intl-MEL Melbourne
30h 23m2 stops Houston George Bush Intcntl Auckland Intl
$1,735Air New Zealand
Tue, 10 Nov - Tue, 17 Nov
American Airlines Logo
09:45 - 05:00MEL  Melbourne-ORD Chicago O'Hare Intl
35h 15m1 stop Los Angeles
American Airlines Logo
11:31 - 05:00ORD  Chicago O'Hare Intl-MEL Melbourne
25h 29m2 stops Fayetteville Northwest Arkansas Dallas/Fort Worth
$1,922American Airlines
Wed, 21 Oct - Sun, 25 Oct
Qantas Airways Logo
10:10 - 16:51SYD  Sydney Kingsford Smith-ORD Chicago O'Hare Intl
22h 41m1 stop Los Angeles
Qantas Airways Logo
18:55 - 09:00ORD  Chicago O'Hare Intl-SYD Sydney Kingsford Smith
22h 05m1 stop Los Angeles
$1,925Qantas Airways
Thu, 15 Oct - Fri, 30 Oct
Qantas Airways Logo
10:10 - 18:38SYD  Sydney Kingsford Smith-ORD Chicago O'Hare Intl
24h 28m1 stop Los Angeles
Qantas Airways Logo
18:45 - 09:00ORD  Chicago O'Hare Intl-SYD Sydney Kingsford Smith
21h 15m1 stop Los Angeles
$1,926Qantas Airways
Sat, 17 Oct - Sun, 1 Nov
American Airlines Logo
22:55 - 07:35PER  Perth-ORD Chicago O'Hare Intl
45h 40m2 stops Sydney Kingsford Smith Dallas/Fort Worth
American Airlines Logo
06:00 - 11:10ORD  Chicago O'Hare Intl-PER Perth
40h 10m2 stops Los Angeles Brisbane
$1,957American Airlines
Thu, 22 Oct - Sun, 25 Oct

momondo Fare Finder

 
Use the filters below to find and compare flights to Chicago O'Hare Intl Airport that are best for you.

Fly from

Route

Depart

Return

Price

Cheapest return flight

SydneyChicago

SYD Sydney Kingsford Smith - ORD Chicago O'Hare Intl

SYDORD

Sydney Kingsford Smith

Mon 9/11

14:00-05:13

3 stops32h 13m

Chicago O'Hare Intl

Mon 16/11

06:30-12:35

3 stops37h 05m

$1,376

SydneyChicago

SYD Sydney Kingsford Smith - ORD Chicago O'Hare Intl

SYDORD

Sydney Kingsford Smith

Fri 16/10

14:15-05:16

3 stops31h 01m

Chicago O'Hare Intl

Sat 31/10

06:30-12:35

3 stops38h 05m

$1,564

BrisbaneChicago

BNE Brisbane - ORD Chicago O'Hare Intl

BNEORD

Brisbane

Mon 9/11

12:15-12:30

1 stop40h 15m

Chicago O'Hare Intl

Mon 16/11

14:10-23:20

1 stop41h 10m

$1,596

BrisbaneChicago

BNE Brisbane - ORD Chicago O'Hare Intl

BNEORD

Brisbane

Mon 9/11

00:50-12:30

1 stop27h 40m

Chicago O'Hare Intl

Tue 17/11

14:10-23:20

1 stop41h 10m

$1,596

SydneyChicago

SYD Sydney Kingsford Smith - ORD Chicago O'Hare Intl

SYDORD

Sydney Kingsford Smith

Tue 10/11

07:30-22:59

2 stops32h 29m

Chicago O'Hare Intl

Tue 17/11

10:34-10:35

2 stops31h 01m

$1,710

MelbourneChicago

MEL Melbourne - ORD Chicago O'Hare Intl

MELORD

Melbourne

Tue 10/11

12:10-22:59

2 stops27h 49m

Chicago O'Hare Intl

Tue 17/11

14:22-13:45

2 stops30h 23m

$1,735

MelbourneChicago

MEL Melbourne - ORD Chicago O'Hare Intl

MELORD

Melbourne

Wed 21/10

09:45-05:00

1 stop35h 15m

Chicago O'Hare Intl

Sun 25/10

11:31-05:00

2 stops25h 29m

$1,922
Fastest return journey

SydneyChicago

SYD Sydney Kingsford Smith - ORD Chicago O'Hare Intl

SYDORD

Sydney Kingsford Smith

Thu 15/10

10:10-16:51

1 stop22h 41m

Chicago O'Hare Intl

Fri 30/10

18:55-09:00

1 stop22h 05m

$1,925

SydneyChicago

SYD Sydney Kingsford Smith - ORD Chicago O'Hare Intl

SYDORD

Sydney Kingsford Smith

Sat 17/10

10:10-18:38

1 stop24h 28m

Chicago O'Hare Intl

Sun 1/11

18:45-09:00

1 stop21h 15m

$1,926

PerthChicago

PER Perth - ORD Chicago O'Hare Intl

PERORD

Perth

Thu 22/10

22:55-07:35

2 stops45h 40m

Chicago O'Hare Intl

Sun 25/10

06:00-11:10

2 stops40h 10m

$1,957

Flights are sorted by cheapest return flights first.

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See travel insights to Chicago O'Hare Intl Airport from

Flights to Chicago O'Hare Intl Airport – Travel Insights & Trends

Get data-powered insights and trends for flights to Chicago O'Hare Intl Airport to help you craft the best travel plan.

What is the cheapest month to fly to Chicago O'Hare Intl Airport?

The month of May is, on average, the cheapest month to fly to Chicago O'Hare Intl Airport from Australia, with most prices found around $1,577. If you are unable to visit Chicago O'Hare Intl Airport during the month of May, then departing from Australia during the month March is also very affordable. Most momondo users find prices during this month for around $1,633.

How far in advance should I book a flight 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 $2,067 when searching weeks before you fly. 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 $1,246 on momondo.

Cheapest flights to Chicago O'Hare Intl

Find the cheapest flights to Chicago O'Hare Intl from your nearest city or airport

Cheap Chicago O'Hare Intl Airport flight deals and tips

Summary info about Chicago O'Hare Intl Airport flight prices, duration and airlines

Best One-Way Price

$985

Best Round-Trip Price

$1,376

Fastest flight time

31h 50m

Popular in

July
The best one-way flight price to Chicago from Australia in the last 5 days is $985 (Sydney Kingsford Smith to Chicago O'Hare Intl).
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The best return flight price to Chicago from Australia in the last 5 days is $1,376 (Sydney Kingsford Smith to Chicago O'Hare Intl).
Search Deals
The fastest flight to Chicago from Australia takes 31h 50m (Melbourne to Chicago O'Hare Intl).
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July has the highest demand for flights to Chicago, with a 11% price increase on average.
Search Deals

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

What is the cheapest month to fly to Chicago O'Hare Intl Airport?

In general, when looking for the cheapest flight to Chicago O'Hare Intl Airport, try to choose a flight departing in October for the best deal.

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

In general, most flyers find the cheapest time to book a flight to Chicago O'Hare Intl Airport is about 2 days prior.

Is there an alternative airport near Chicago O'Hare Intl Airport?

Those flying to Chicago O'Hare Intl Airport could potentially find better pricing at Chicago Midway Airport (14 km from Chicago city centre) or Chicago Greater Rockford Airport (126 km from Chicago city centre) depending on the month and departure airport.

Is there a cheaper alternative to flying into Chicago?

Prices vary based on where travellers are departing from, but on average, the cheapest airport to fly to in Chicago is Chicago Midway Airport where the average price is $357. Users typically find the best prices when using momondo’s Airport-to-Airport Pricing Tool.

Which airlines fly to Chicago O'Hare Intl Airport?

There are 8 airlines that fly to Chicago O'Hare Intl Airport on a routine basis, but Qantas Airways, United Airlines and Air New Zealand happen to be the most popular among our users. In the past year, 38% of those who searched for flights to Chicago O'Hare Intl Airport looked to travel with Qantas Airways, making this airline the top choice among momondo travellers.

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

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

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

The number of operators available for flights to Chicago O'Hare Intl Airport is 8 as of September 2026.

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel to Chicago O'Hare Intl Airport.

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

The travel and health documents you'll need for your trip to Chicago O'Hare Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Chicago O'Hare Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Travelling to a place near Chicago O'Hare Intl Airport?

Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locations
Rosemont
Elk Grove Village
Skokie

Why use momondo?

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

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 Chicago.

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?

Once you have performed a search for flights to Chicago, momondo helps you find the right flight by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Price alerts on flights to Chicago are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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