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Look for other cheap flights to Chicago O'Hare Intl

$857 Cheap flights to Chicago O'Hare Intl Airport

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 O'Hare Intl Airport departing on 23/11. 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 O'Hare Intl Airport

Cheap return flights

Enter your travel dates to find the best prices.
Air New Zealand Logo
10:35 - 18:50MEL-ORD
25h 15m2 stops
Air New Zealand Logo
10:42 - 09:25ORD-MEL
29h 43m2 stops
$1,408Air New Zealand
Find Deal
Fri, 14 Nov - Fri, 28 Nov
Air New Zealand Logo
13:55 - 22:59SYD-ORD
26h 04m2 stops
Air New Zealand Logo
10:35 - 08:45ORD-SYD
29h 10m2 stops
$1,424Air New Zealand
Find Deal
Mon, 3 Nov - Thu, 13 Nov
Air Canada Logo
10:20 - 14:41SYD-ORD
20h 21m1 stop
Air Canada Logo
12:50 - 09:35ORD-SYD
27h 45m2 stops
$1,579Air Canada
Find Deal
Sat, 1 Nov - Sat, 15 Nov
Air Canada Logo
10:20 - 20:00SYD-ORD
25h 40m2 stops
Air Canada Logo
12:50 - 09:35ORD-SYD
27h 45m2 stops
$1,582Air Canada
Find Deal
Sat, 1 Nov - Sat, 15 Nov
Cathay Pacific Logo
14:50 - 13:55CNS-ORD
62h 05m2 stops
Cathay Pacific Logo
15:35 - 10:45ORD-CNS
52h 10m2 stops
$1,667Cathay Pacific
Find Deal
Wed, 11 Mar - Sun, 15 Mar
Cathay Pacific Logo
14:50 - 13:55CNS-ORD
62h 05m2 stops
Cathay Pacific Logo
15:35 - 10:45ORD-CNS
52h 10m2 stops
$1,670Cathay Pacific
Find Deal
Wed, 11 Mar - Sun, 15 Mar
Japan Airlines Logo
10:30 - 08:30PER-ORD
35h 00m2 stops
Japan Airlines Logo
17:35 - 23:55ORD-PER
40h 20m2 stops
$1,827Japan Airlines
Find Deal
Mon, 27 Oct - Tue, 11 Nov
Japan Airlines Logo
12:25 - 15:45PER-ORD
40h 20m2 stops
Japan Airlines Logo
18:35 - 23:55ORD-PER
40h 20m2 stops
$1,886Japan Airlines
Find Deal
Sun, 19 Oct - Mon, 27 Oct
United Airlines Logo
12:10 - 14:55SYD-ORD
19h 45m1 stop
United Airlines Logo
18:29 - 06:20ORD-SYD
42h 51m1 stop
$2,072United Airlines
Find Deal
Wed, 24 Dec - Sat, 24 Jan
United Airlines Logo
11:20 - 18:55SYD-ORD
24h 35m1 stop
United Airlines Logo
16:16 - 06:20ORD-SYD
21h 04m1 stop
$2,136United Airlines
Find Deal
Wed, 24 Dec - Thu, 29 Jan

momondo Fare Finder

 
Locate flights to Chicago O'Hare Intl 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 3 October 2025.
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

MelbourneChicago

MEL - ORD

MELORD

Melbourne

Fri 14/11

10:35-18:50

2 stops25h 15m

Chicago O'Hare Intl

Fri 28/11

10:42-09:25

2 stops29h 43m

$1,408

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Mon 3/11

13:55-22:59

2 stops26h 04m

Chicago O'Hare Intl

Thu 13/11

10:35-08:45

2 stops29h 10m

$1,424

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Sat 1/11

10:20-14:41

1 stop20h 21m

Chicago O'Hare Intl

Sat 15/11

12:50-09:35

2 stops27h 45m

$1,579

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Sat 1/11

10:20-20:00

2 stops25h 40m

Chicago O'Hare Intl

Sat 15/11

12:50-09:35

2 stops27h 45m

$1,582

CairnsChicago

CNS - ORD

CNSORD

Cairns

Wed 11/3

14:50-13:55

2 stops62h 05m

Chicago O'Hare Intl

Sun 15/3

15:35-10:45

2 stops52h 10m

$1,667

CairnsChicago

CNS - ORD

CNSORD

Cairns

Wed 11/3

14:50-13:55

2 stops62h 05m

Chicago O'Hare Intl

Sun 15/3

15:35-10:45

2 stops52h 10m

$1,670

PerthChicago

PER - ORD

PERORD

Perth

Mon 27/10

10:30-08:30

2 stops35h 00m

Chicago O'Hare Intl

Tue 11/11

17:35-23:55

2 stops40h 20m

$1,827

PerthChicago

PER - ORD

PERORD

Perth

Sun 19/10

12:25-15:45

2 stops40h 20m

Chicago O'Hare Intl

Mon 27/10

18:35-23:55

2 stops40h 20m

$1,886

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Wed 24/12

12:10-14:55

1 stop19h 45m

Chicago O'Hare Intl

Sat 24/1

18:29-06:20

1 stop42h 51m

$2,072

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Wed 24/12

11:20-18:55

1 stop24h 35m

Chicago O'Hare Intl

Thu 29/1

16:16-06:20

1 stop21h 04m

$2,136

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 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 day to depart on your flight to Chicago O'Hare Intl Airport?

The cheapest day to depart from Australia to Chicago O'Hare Intl Airport is on a Monday. Travellers who choose to depart for Chicago O'Hare Intl Airport on a Monday will often find tickets for as low as $1,837. The most expensive day to fly to Chicago O'Hare Intl Airport is Sunday, with ticket prices averaging around $2,237.

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

The month of February is, on average, the cheapest month to fly to Chicago O'Hare Intl Airport from Australia, with most prices found around $1,087. If you are unable to visit Chicago O'Hare Intl Airport during the month of February, then departing from Australia during the month May is also very affordable. Most momondo users find prices during this month for around $1,131.

What is the cheapest time of day to depart on your flight to Chicago O'Hare Intl Airport?

Our data shows that the cheapest Australia to Chicago O'Hare Intl Airport flights are usually those with departure times in the afternoon. Our users have found flights to Chicago O'Hare Intl Airport in the afternoon for as low as $1,746. In contrast, the most expensive time of day to depart to Chicago O'Hare Intl Airport is in the morning when prices are around $1,980.

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 $1,493 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 $1,175 on momondo.

Cheapest flights to Chicago O'Hare Intl

Find the cheapest flights to Chicago O'Hare Intl from your nearest city or airport
Find flights from Sydney to Chicago O'Hare Intl Airport
CHEAPEST MONTH TO FLY TO CHICAGO O'HARE INTL AIRPORT FROM SYDNEYFebruary28% cheaperFlying from Sydney to Chicago O'Hare Intl Airport costs on average just $1,087 in February
MOST EXPENSIVE MONTH TO FLY TO CHICAGO O'HARE INTL AIRPORT FROM SYDNEYDecember63% more expensiveIt costs about $2,436 for flights to Chicago O'Hare Intl Airport from Sydney in December
MOST POPULAR MONTH TO FLY TO CHICAGO O'HARE INTL AIRPORT FROM SYDNEYDecember151% more users visitedMore momondo users searched in flights to Chicago O'Hare Intl Airport from Sydney in December than any other month

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

$857

Best Round-Trip Price

$1,408

Fastest flight time

20h 21m

Popular in

June
The best one-way flight price to Chicago from Australia in the last 72 hours is $857 (Sydney Kingsford Smith to Chicago O'Hare Intl).
Search Deals
The best round-trip flight price to Chicago from Australia in the last 72 hours is $1,408 (Melbourne to Chicago O'Hare Intl).
Search Deals
The fastest flight to Chicago from Australia takes 20h 21m (Sydney Kingsford Smith to Chicago O'Hare Intl).
Search Deals
June has the highest demand for flights to Chicago, with a 3% 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 February 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 78 days prior.

What is the cheapest day to depart on your flight to Chicago O'Hare Intl Airport?

Most of our users find that booking their departure to Chicago O'Hare Intl Airport on a Monday is the cheapest. Conversely, departing on a Sunday seems to be the most expensive.

What is the cheapest time of day to fly to Chicago O'Hare Intl Airport?

In general, when looking for the cheapest flight to Chicago O'Hare Intl Airport, our data indicates that Afternoon flights are the most cost-effective. Morning flights tend to be the most expensive.

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 Greater Rockford Airport where the average price is $144. 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 10 airlines that fly to Chicago O'Hare Intl Airport on a routine basis, but Qantas Airways, Air Canada and United Airlines happen to be the most popular among our users. In the past year, 61% 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 10 as of October 2025.

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
Naperville

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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Find better results for your trip to Chicago O'Hare Intl Airport ORD

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Popular routes according to searches in the past day on momondo
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