$396 Find Cheap Flights from Australia to Chicago - Compare and Save

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Cheap Flights from Australia to O'Hare Intl

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Australia to O'Hare Intl

Mon, Oct 19 - Mon, Oct 26
Multiple Airlines Logo
2:15 pm - 5:16 amSYD  Sydney Kingsford Smith-ORD Chicago O'Hare Intl
31h 01m3 stops Nadi Los Angeles Las Vegas Harry Reid Intl
Multiple Airlines Logo
6:30 am - 12:35 pmORD  Chicago O'Hare Intl-SYD Sydney Kingsford Smith
38h 05m3 stops Denver Intl Los Angeles Nadi
$1,012Multiple Airlines
Fri, Dec 4 - Sat, Dec 5
Qantas Airways Logo
9:25 pm - 5:59 amSYD  Sydney Kingsford Smith-ORD Chicago O'Hare Intl
25h 34m1 stop San Francisco
Qantas Airways Logo
9:00 pm - 6:25 amORD  Chicago O'Hare Intl-SYD Sydney Kingsford Smith
40h 25m1 stop Los Angeles
$1,052Qantas Airways
Mon, Oct 19 - Sun, Nov 1
Cathay Pacific Logo
12:20 pm - 1:55 pmBNE  Brisbane-ORD Chicago O'Hare Intl
40h 35m1 stop Hong Kong Intl
Cathay Pacific Logo
2:10 pm - 10:45 amORD  Chicago O'Hare Intl-BNE Brisbane
28h 35m1 stop Hong Kong Intl
$1,129Cathay Pacific
Fri, Oct 16 - Fri, Oct 23
Multiple Airlines Logo
2:20 pm - 5:16 amMEL  Melbourne-ORD Chicago O'Hare Intl
30h 56m3 stops Nadi Los Angeles Las Vegas Harry Reid Intl
Multiple Airlines Logo
6:20 am - 12:25 pmORD  Chicago O'Hare Intl-MEL Melbourne
38h 05m3 stops Dallas/Fort Worth Los Angeles Nadi
$1,134Multiple Airlines
Wed, Oct 21 - Thu, Oct 29
Cathay Pacific Logo
12:20 pm - 1:55 pmBNE  Brisbane-ORD Chicago O'Hare Intl
40h 35m1 stop Hong Kong Intl
Cathay Pacific Logo
3:10 pm - 11:20 pmORD  Chicago O'Hare Intl-BNE Brisbane
41h 10m1 stop Hong Kong Intl
$1,163Cathay Pacific
Mon, Oct 12 - Mon, Oct 26
Qantas Airways Logo
1:00 pm - 6:35 pmSYD  Sydney Kingsford Smith-ORD Chicago O'Hare Intl
21h 35m1 stop Dallas/Fort Worth
Qantas Airways Logo
8:29 am - 9:00 amORD  Chicago O'Hare Intl-SYD Sydney Kingsford Smith
32h 31m1 stop Los Angeles
$1,366Qantas Airways
Sun, Oct 25 - Sun, Nov 8
Japan Airlines Logo
10:30 am - 11:00 amPER  Perth-ORD Chicago O'Hare Intl
37h 30m2 stops Singapore Changi Tokyo Haneda
Japan Airlines Logo
1:30 pm - 11:55 pmORD  Chicago O'Hare Intl-PER Perth
44h 25m2 stops Tokyo Haneda Singapore Changi
$1,776Japan Airlines
Wed, Oct 21 - Sun, Oct 25
United Airlines Logo
10:30 am - 6:34 pmMEL  Melbourne-ORD Chicago O'Hare Intl
24h 04m2 stops Los Angeles San Francisco
United Airlines Logo
4:20 pm - 9:30 amORD  Chicago O'Hare Intl-MEL Melbourne
25h 10m2 stops Denver Intl San Francisco
$2,075United Airlines
Wed, Oct 21 - Sun, Oct 25
United Airlines Logo
10:30 am - 6:34 pmMEL  Melbourne-ORD Chicago O'Hare Intl
24h 04m2 stops Los Angeles San Francisco
United Airlines Logo
4:20 pm - 9:30 amORD  Chicago O'Hare Intl-MEL Melbourne
25h 10m2 stops Denver Intl San Francisco
$2,076United Airlines
Sun, Dec 13 - Thu, Dec 31
United Airlines Logo
11:20 am - 1:13 pmBNE  Brisbane-ORD Chicago O'Hare Intl
41h 53m2 stops San Francisco Kansas City
United Airlines Logo
8:40 am - 7:30 amORD  Chicago O'Hare Intl-BNE Brisbane
30h 50m1 stop San Francisco
$2,121United Airlines
Booking Insights

KAYAK's insights & trends for flights to O'Hare Intl

Get data-powered insights and trends for flights to O'Hare Intl to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest flight to Chicago?

In the last 5 days, the cheapest flight deal to Chicago was found on the route from Sydney, at $1,012 return. The most popular connection is from Perth to Chicago and KAYAK users have found round-trip deals for as low as $1,411 in the last 5 days.

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

The cheapest month for flights to Chicago O'Hare Intl Airport is May, where tickets cost $1,124 on average for return flights. On the other hand, the most expensive months are December and January, where the average cost of tickets from Australia is $1,520 and $1,449 respectively. For one-way flights, the best month to travel is August with an average price of $810.

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

To get a below average price, you should book around 2 weeks before departure, which saves you about 40% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Good to know

Low season

January

Cheapest flight

$396
Best time to beat the crowds but there is an average 16% increase in price.
Most popular time to fly and prices are also 11% lower on average.
Flight from Sydney to Chicago O'Hare Airport

FAQs - booking Chicago flights

  • Are there any bars or pubs located in the airport?

    Chicago O’Hare Airport has various bars for you to try out during your time at the airport; they are located in Terminals 1, 2, 3 and 5. Some recommended bars are Beaudevin Wine Bar (located in Terminal 1), Bubbles Wine Bar (located in Terminal 3), Goose Island Beer Company (located in Terminal 1 and 3) and Sky Bridge Bar & Grill (located in Terminal 2).

  • Are there any airport lounges I can go to while on a layover?

    Chicago O’Hare Airport has a variety of lounges that you can enjoy. Some domestic terminal lounges are United (United Club), American Flagship Lounge and Delta (Sky Club). For lounges in the international terminal, there’s SAS Lounge, British Airways First Lounge and Swissport Lounge.

  • How do I get from the Chicago O'Hare Airport to the city?

    The Chicago Transport Authority Blue Line runs from the Chicago O’Hare Airport to the Forest Park Station 24h daily. You can find the Airport Train Station on Terminal 2’s Lower Level, which can be reached by foot or the Airport Transit System. For those on a budget, the bus systems are also a good option, with numerous services from the airport into Chicago city and suburbs.

  • Are there any car hire services available at the Chicago O'Hare Airport?

    There are several different car hire services with a presence at the O’Hare Airport. Many have registration counters in the Arrivals Area of all the terminals. For example, you can find major companies such as Hertz, Avis, Budget, National, Sixt, and Enterprise. The car pick ups are further from the terminal, however, each agency offers their own shuttle services from designated points outside the Arrivals Area.

  • Is there anywhere I can pick up some of the local currency at the Chicago O'Hare Airport?

    The Seaway National Bank has branches throughout the airport, available for both your banking and currency exchange needs. They also can assist you with last-minute faxing and photocopying. Landside locations include the Main Hall of Terminal 2 and the Ticketing Level at Terminal 5. ATMs are also available 24h daily in the Arrivals Area of all terminals where you can withdraw American dollars directly.

  • Are there any onsite hotels at the Chicago O'Hare Airport?

    The Hilton Chicago O’Hare Airport is the airport’s only onsite hotel, located across from Domestic Terminals 1, 2, and 3. It is a short walk to the hotel from the domestic terminal or you can catch the Airport Transit System. Also, next to the airport and offering shuttles to and from your terminal are the Sheraton Suites, The Rose Hotel, The Holiday Inn & Suites, and the Four Points by Sheraton. If your flight is late and you need to stay close by, you have plenty of options to choose from.

  • Is there anywhere I can get something to eat at the Chicago O'Hare Airport?

    For those just looking for a quick snack to keep them going, you can find the high-end Farmer’s Fridge vending machines in Terminals 3 and 5. These machines also take plastic. For coffee and something sweet, Starbucks has locations in the Baggage Claim areas of Terminals 1, 2, and 3. If you want something more substantial, there is a McDonald’s in Terminal 5’s Baggage Claim area.

  • What is the cheapest flight to Chicago?

    In the last 5 days, the cheapest flight deal to Chicago was found on the route from Sydney, at $1,012 return. The most popular connection is from Perth to Chicago and KAYAK users have found round-trip deals for as low as $1,411 in the last 5 days.

  • How far is Chicago O'Hare Intl Airport from central Chicago?

    You’ll need to travel 16 miles to reach the Chicago city center from Chicago O'Hare Intl Airport.

  • How does KAYAK find such low prices on flights to Chicago?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to Chicago.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to Chicago?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Chicago is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights to Chicago?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Chicago with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to Chicago?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Chicago up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • How many direct flights to Chicago O'Hare Intl Airport are there each week?

    Each week there are around 29,144 direct flights from within Australia to Chicago O'Hare Intl Airport. The most common day for departures is Sunday, with 17% of flights taking off on this day.

Top tips for finding cheap flights to Chicago

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Chicago flight deals.
  • Chicago O’Hare International Airport (ORD) offers assistance to passengers with special needs. Each airline has wheelchairs for those with mobility issues and staff to help you on your way, and the service extends to assisting passengers in getting to and between gates. Before you arrive for your flight, make sure to book wheelchair assistance in advance.
  • Chicago O’Hare Airport has many lost-and-found offices across the airport. It is best to contact the office closest to where you last saw your missing item. However, if you are unsure where you last saw it, contact all of the lost-and-found offices. If you have lost anything on the plane, you should contact your airline.
  • Stuck at the airport while waiting for another flight? Chicago O’Hare Airport has various shops for you to entertain yourself. Some recommended shops are Barbara’s Bookstore (located in every terminal), Duty-Free Store, Hudson News & Gifts and Johnson & Murphy. Chicago O’Hare Airport also has some luxury brands to shop at. Some of these include COACH, MAC Cosmetics and Sunglass Hut.
  • When booking your flights to Chicago, you can fly into one of their two international airports. The largest is the Chicago O’Hare International Airport (ORD), and there is also the nearby Chicago Midway International Airport (MDW).
  • Although there are no direct flights to Chicago from Australia, some services offer flights with a single stopover. Favoured stopover locations include Dallas, Los Angeles, San Francisco, or Vancouver.
  • The O’Hare Airport is large—made up of four terminals, and further split into 9 concourses. To help you get around the airport, the Inter-Terminal Train (or Airport Transit System) can take you to the terminals, parking lots, bus stops, and the drop off point.
  • If you need to charge your phone after your flight to Chicago, you can find "Get Plugged In" power stations and seats with charging docks in the Arrivals Area of the Midway Airport.
  • Those travelling with children can find the larger, unisex bathrooms/family restrooms in the Baggage Claim area of Terminals 1, 2, and 3 and near the security checkpoint of Terminal 5 of the O’Hare Airport. These bathrooms are equipped with changing tables.
  • If you’d like to unwind after a long flight to Chicago, you can make the most of the O’Hare Hilton Health Club, located at the Hilton Hotel across from Terminals 1, 2, and 3. Their facilities include steam rooms, saunas, a gym, and a lap pool.

Reviews of the top airlines flying from Australia to O'Hare Intl

 
Need help choosing which airline to fly with to O'Hare Intl? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.5
Qantas AirwaysOverall score based on 1090 reviews
7.7Boarding
7.0Food
8.1Crew
7.2Entertainment
7.4Comfort
Airline reviews

Overall, it was a very good experience. I would have given it a 10/10, especially based on our flight from SFO to Melbourne. The cabin crew on that flight were wonderful and incredibly attentive. They took extra care when setting up our beds so we could sleep comfortably without being disturbed. Dinner was served promptly and smoothly. I woke up quite late, when the flight was already preparing for landing, and the crew still made sure I was taken care of. They brought me English tea in a proper cup, and when it was time to prepare the cabin for landing, they thoughtfully transferred it into a takeaway cup so I could continue enjoying it along with some breakfast. Those small, thoughtful gestures made the long flight feel much more comfortable and special. The service from the SFO to Melbourne crew was truly excellent.

8.0 ExcellentAnonymous, Aug 2026
Read more Qantas Airways reviews

Overall, it was a very good experience. I would have given it a 10/10, especially based on our flight from SFO to Melbourne. The cabin crew on that flight were wonderful and incredibly attentive. They took extra care when setting up our beds so we could sleep comfortably without being disturbed. Dinner was served promptly and smoothly. I woke up quite late, when the flight was already preparing for landing, and the crew still made sure I was taken care of. They brought me English tea in a proper cup, and when it was time to prepare the cabin for landing, they thoughtfully transferred it into a takeaway cup so I could continue enjoying it along with some breakfast. Those small, thoughtful gestures made the long flight feel much more comfortable and special. The service from the SFO to Melbourne crew was truly excellent.

Great food and good entertainment options for the long flight.

Loved the food and beverages available, spacious economy class, excellent entertainment

Very good overall. Highly recommend for all flying to Australia

We had bulkhead seats in a A380 in the upper deck in seats 31 D and E. Storage was very limited other than in overhead bin - which is not within reach when in seat. Yet paying same price as others in premium economy who have a lot more storage within arm’s reach. Seems very unfair.

Good check in and helpful staff. Delayed for 1 hour. Took about 45 Mins to get baggage’s at DFW . Food was average ( Hindu meal ) . Overall it was good experience

When I originally booked this flight, I was expecting to travel on Qantas. When the itinerary changed and the long-haul segment was operated by American Airlines, we were disappointed but remained open-minded. Unfortunately, the overall service experience fell far short of expectations. This was a long-haul international flight. Getting up periodically to use the restroom or stretch is inevitable, especially on flights of this duration. However, each time we stood up, we felt as though we were inconveniencing the crew. The tone and body language often suggested that we were in the way or disrupting something simply by moving about the cabin. As a result, I avoided getting up as often as I needed to and was physically very sore upon arrival. Meal service was similarly impersonal. The options were presented in single words “beef or veggie,” “pasta or beef” without any description of what was actually being served. There was little engagement or courtesy beyond that. Even simple expressions of gratitude were often not acknowledged. I am accustomed to no-frills travel and do not expect luxury. What was disappointing was not the absence of extras, but the absence of basic warmth and professionalism. On a long-haul international flight, small moments of courtesy and humanity make a significant difference. In this case, the experience felt transactional and dismissive rather than welcoming. I hope this feedback is taken constructively, as there is a meaningful difference between efficient service and indifferent service.

Business seats not as comfortable or private as most competitors (e.g. Qantas was outstanding), and movie selection was much more limited than Qantas or United has been recently

Hard to move and get out of my seat when the passenger in front is in recline position.

Poor! This flight was delayed 14 hours. There was no assistance in helping customers find other routes to their destination, nor any other kind of support. It was a chaotic experience. I'm not likely to fly with AA going forward.

Crew was great. Seats are cramped and uncomfortable and I’m a small person.

Awful. Delay after delay. And then again on the tarmac.

Kept changing the takeoff time and the moved it up so arrived when boarding had already started. Then sat waiting to taxi in for a long time

Food was not Good Nuts came very wet & not tasting Good Main course I asked for Steak they got me Chicken because they don’t have more !!!!

It cancelled and we were unable to catch our connecting international flights.

Leaving at 7 when scheduled to leave at 4:20 - you tell me. Understood there was a ground stop. Then having to "reboot" the plane because of a lighting strike, also understood. But basically the flight was a "clusterf#$%".

On boarding crew at the airport called in the boarding numbers too early meaning before the previous line was completed resulting in later numbers getting to board ahead. Also she asked those who boarded from number 3 to have the tags in their carry-on bags and leave it in the jet bridge. Most of the overhead bins were empty though. This is more work for the ground staff in addition to more inconvenience for passengers waiting to get their carry-ons from the jet bridge.

ok, butt flght was delyed for 2,5h from Frankfurt, and next Flight to Columbuse same

Flight was great. Almost miss my connecting flight due to late departure from Haneda. Had to run all through airport in Chicago to make the flight. Experience was great for 1st time flyers using ANA Airlines.

Like the fact that the boarding was expedited. But the delay and chaos around the onboarding was not appreciated.

Traveling to a place near O'Hare Intl?

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Gurnee
Merrillville
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Oakbrook Terrace
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