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Look for other cheap flights to Chicago O'Hare Intl

$871 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 2/9. 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.
Qantas Airways Logo
09:45 - 17:47
MEL
-
ORD
23h 02m
1 stop
Qantas Airways Logo
17:15 - 06:45
ORD
-
MEL
22h 30m
1 stop
$1,327Qantas Airways
Tue, 11 Aug - Fri, 21 Aug
Qantas Airways Logo
09:45 - 19:50
MEL
-
ORD
25h 05m
1 stop
Qantas Airways Logo
20:55 - 06:45
ORD
-
MEL
42h 50m
1 stop
$1,335Qantas Airways
Mon, 1 Jun - Mon, 22 Jun
United Airlines Logo
10:55 - 16:38
MEL
-
ORD
20h 43m
1 stop
United Airlines Logo
12:45 - 08:15
ORD
-
MEL
28h 30m
1 stop
$1,351United Airlines
Wed, 10 Jun - Tue, 23 Jun
Delta Logo
10:00 - 23:18
MEL
-
ORD
28h 18m
1 stop
Delta Logo
19:17 - 07:50
ORD
-
MEL
45h 33m
2 stops
$1,361Delta
Fri, 24 Jul - Sun, 2 Aug
United Airlines Logo
09:30 - 20:16
MEL
-
ORD
25h 46m
2 stops
United Airlines Logo
16:45 - 08:15
ORD
-
MEL
24h 30m
2 stops
$1,365United Airlines
Fri, 5 Jun - Sun, 14 Jun
American Airlines Logo
11:15 - 06:01
SYD
-
ORD
34h 46m
1 stop
American Airlines Logo
10:15 - 06:10
ORD
-
SYD
26h 55m
1 stop
$1,484American Airlines
Sat, 31 Oct - Wed, 4 Nov
American Airlines Logo
11:15 - 13:09
SYD
-
ORD
41h 54m
1 stop
American Airlines Logo
10:15 - 06:10
ORD
-
SYD
26h 55m
1 stop
$1,486American Airlines
Sat, 31 Oct - Wed, 4 Nov
Air Canada Logo
20:00 - 19:48
ADL
-
ORD
39h 18m
3 stops
Air Canada Logo
15:40 - 18:10
ORD
-
ADL
34h 00m
2 stops
$2,346Air Canada
Mon, 19 Oct - Mon, 16 Nov
Air Canada Logo
20:00 - 19:48
ADL
-
ORD
39h 18m
3 stops
Air Canada Logo
14:00 - 13:55
ORD
-
ADL
31h 25m
3 stops
$2,552Air Canada
Mon, 19 Oct - Mon, 16 Nov
Air New Zealand Logo
18:50 - 20:22
PER
-
ORD
39h 32m
2 stops
Air New Zealand Logo
11:00 - 16:50
ORD
-
PER
39h 50m
2 stops
$2,613Air New Zealand
Tue, 3 Nov - Wed, 11 Nov

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 17 May 2026.
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
Fastest return journey

MelbourneChicago

MEL - ORD

MELORD

Melbourne

Tue 11/8

09:45-17:47

1 stop23h 02m

Chicago O'Hare Intl

Fri 21/8

17:15-06:45

1 stop22h 30m

$1,327

MelbourneChicago

MEL - ORD

MELORD

Melbourne

Mon 1/6

09:45-19:50

1 stop25h 05m

Chicago O'Hare Intl

Mon 22/6

20:55-06:45

1 stop42h 50m

$1,335

MelbourneChicago

MEL - ORD

MELORD

Melbourne

Wed 10/6

10:55-16:38

1 stop20h 43m

Chicago O'Hare Intl

Tue 23/6

12:45-08:15

1 stop28h 30m

$1,351

MelbourneChicago

MEL - ORD

MELORD

Melbourne

Fri 24/7

10:00-23:18

1 stop28h 18m

Chicago O'Hare Intl

Sun 2/8

19:17-07:50

2 stops45h 33m

$1,361

MelbourneChicago

MEL - ORD

MELORD

Melbourne

Fri 5/6

09:30-20:16

2 stops25h 46m

Chicago O'Hare Intl

Sun 14/6

16:45-08:15

2 stops24h 30m

$1,365

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Sat 31/10

11:15-06:01

1 stop34h 46m

Chicago O'Hare Intl

Wed 4/11

10:15-06:10

1 stop26h 55m

$1,484

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Sat 31/10

11:15-13:09

1 stop41h 54m

Chicago O'Hare Intl

Wed 4/11

10:15-06:10

1 stop26h 55m

$1,486

AdelaideChicago

ADL - ORD

ADLORD

Adelaide

Mon 19/10

20:00-19:48

3 stops39h 18m

Chicago O'Hare Intl

Mon 16/11

15:40-18:10

2 stops34h 00m

$2,346

AdelaideChicago

ADL - ORD

ADLORD

Adelaide

Mon 19/10

20:00-19:48

3 stops39h 18m

Chicago O'Hare Intl

Mon 16/11

14:00-13:55

3 stops31h 25m

$2,552

PerthChicago

PER - ORD

PERORD

Perth

Tue 3/11

18:50-20:22

2 stops39h 32m

Chicago O'Hare Intl

Wed 11/11

11:00-16:50

2 stops39h 50m

$2,613

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 month to fly to Chicago O'Hare Intl Airport?

The month of June is, on average, the cheapest month to fly to Chicago O'Hare Intl Airport from Australia, with most prices found around $266. If you are unable to visit Chicago O'Hare Intl Airport during the month of June, then departing from Australia during the month July is also very affordable. Most momondo users find prices during this month for around $404.

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 $1,848 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 $1,380 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

$871

Best Round-Trip Price

$1,327

Fastest flight time

32h 04m

Popular in

September
The best one-way flight price to Chicago from Australia in the last 72 hours is $871 (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 $1,327 (Melbourne to Chicago O'Hare Intl).
Search Deals
The fastest flight to Chicago from Australia takes 32h 04m (Sydney Kingsford Smith to Chicago O'Hare Intl).
Search Deals
September has the highest demand for flights to Chicago, with a 1% 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 September 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 43 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 Greater Rockford Airport where the average price is $133. 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 9 airlines that fly to Chicago O'Hare Intl Airport on a routine basis, but Qantas Airways, Air Canada and Air New Zealand happen to be the most popular among our users. In the past year, 33% 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 May 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

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

Popular Flights to Chicago O'Hare Intl Airport

Popular routes according to searches in the past day on momondo
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