$695 Find Cheap Flights from Australia to Chicago O'Hare Airport - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to O'Hare Intl departing on 8/18. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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Cheap Flights from Australia to O'Hare Intl

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Australia to O'Hare Intl that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

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

Wed, Aug 12 - Wed, Aug 19
Multiple Airlines Logo
6:05 am - 6:17 am
SYD
-
ORD
39h 12m
2 stops
Multiple Airlines Logo
9:20 am - 11:50 am
ORD
-
SYD
35h 30m
3 stops
$897Multiple Airlines
Wed, Aug 12 - Wed, Aug 19
Multiple Airlines Logo
6:05 am - 6:17 am
SYD
-
ORD
39h 12m
2 stops
Multiple Airlines Logo
9:20 am - 11:50 am
ORD
-
SYD
35h 30m
3 stops
$901Multiple Airlines
Mon, Aug 3 - Sat, Aug 22
Qantas Airways Logo
9:45 am - 8:08 pm
MEL
-
ORD
25h 23m
1 stop
Qantas Airways Logo
11:49 am - 6:45 am
ORD
-
MEL
27h 56m
1 stop
$913Qantas Airways
Sat, Aug 15 - Fri, Sep 11
Qantas Airways Logo
9:45 am - 11:00 pm
MEL
-
ORD
28h 15m
1 stop
Qantas Airways Logo
6:50 pm - 5:00 am
ORD
-
MEL
43h 10m
1 stop
$914Qantas Airways
Tue, Aug 4 - Tue, Aug 11
American Airlines Logo
9:45 am - 3:59 pm
MEL
-
ORD
21h 14m
1 stop
American Airlines Logo
11:49 am - 6:45 am
ORD
-
MEL
27h 56m
1 stop
$929American Airlines
Fri, Jul 24 - Sun, Aug 2
American Airlines Logo
9:45 am - 6:12 pm
MEL
-
ORD
23h 27m
1 stop
American Airlines Logo
12:29 pm - 6:45 am
ORD
-
MEL
27h 16m
1 stop
$938American Airlines
Tue, Oct 13 - Wed, Oct 14
United Airlines Logo
10:30 am - 7:54 am
SYD
-
ORD
37h 24m
2 stops
United Airlines Logo
4:05 pm - 7:55 am
ORD
-
SYD
23h 50m
1 stop
$1,094United Airlines
Thu, Nov 5 - Sun, Nov 8
Air Canada Logo
6:00 am - 2:37 pm
OOL
-
ORD
24h 37m
2 stops
Air Canada Logo
8:50 pm - 12:40 pm
ORD
-
OOL
47h 50m
3 stops
$1,887Air Canada
Thu, Nov 5 - Sun, Nov 8
Air Canada Logo
6:00 am - 2:37 pm
OOL
-
ORD
24h 37m
2 stops
Air Canada Logo
8:50 pm - 12:40 pm
ORD
-
OOL
47h 50m
3 stops
$1,890Air Canada
Sun, Aug 23 - Sun, Aug 30
United Airlines Logo
8:00 pm - 5:05 pm
ADL
-
ORD
35h 35m
2 stops
United Airlines Logo
9:28 pm - 11:05 am
ORD
-
ADL
47h 07m
2 stops
$1,964United 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 O'Hare Airport?

These are the best round-trip prices found by users searching on KAYAK in the last 5 days.

In the last 5 days, the cheapest flight deal to Chicago O'Hare Airport was found on the route from Sydney, at $897 return. The most popular connection is from Perth to Chicago O'Hare Airport and KAYAK users have found round-trip deals for as low as $1,305 in the last 5 days.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights to Chicago O'Hare Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights to Chicago O'Hare Intl Airport is July, where tickets cost $289 on average for return flights. On the other hand, the most expensive months are January and February, where the average cost of tickets from Australia is $969 and $967 respectively. For one-way flights, the best month to travel is May with an average price of $452.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to Chicago O'Hare Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price, you should book around 2 weeks before departure, which saves you about 18% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$695
Best time to beat the crowds but there is an average 16% increase in price.
Most popular time to fly and prices are also 18% lower on average.
Flight from Sydney to Chicago O'Hare Airport

FAQs - booking Chicago O'Hare Airport 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 O'Hare Airport?

    In the last 5 days, the cheapest flight deal to Chicago O'Hare Airport was found on the route from Sydney, at $897 return. The most popular connection is from Perth to Chicago O'Hare Airport and KAYAK users have found round-trip deals for as low as $1,305 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 O'Hare Airport?

    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 O'Hare Airport.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Chicago O'Hare Airport 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 O'Hare Airport?

    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 O'Hare Airport 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 O'Hare Airport?

    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 O'Hare Airport 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 28,614 direct flights from within Australia to Chicago O'Hare Intl Airport. The most common day for departures is Sunday, with 15% of flights taking off on this day.

Top tips for finding cheap flights to Chicago O'Hare Airport

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Chicago O'Hare Airport 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 4 airlines serving from Australia to O'Hare Intl

 
See real verified KAYAK customer reviews for airlines flying to Chicago. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Australia to Chicago. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
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.
8.3
Japan AirlinesOverall score based on 1871 reviews
8.2Comfort
8.7Crew
7.7Food
8.4Boarding
7.8Entertainment
Airline reviews

Overall, it was ok. The attendants are nice. It was a short flight, and I did not use the restrooms. What I was frustrated was the check-in. I was to fly from ATL to Chicago (American) then change to Japan Airline to go to Japan. I checked in, but I only got a boarding pass for the flight from Atlanta to Chicago. It said I would need to check in for a flight to Japan on Japan Airline site. When I tried to check in on JAL website, it said I need to check in American... It was very confusing.

8.0 ExcellentMami, May 2026
ATL - ORD
Read more Japan Airlines reviews

Overall, it was ok. The attendants are nice. It was a short flight, and I did not use the restrooms. What I was frustrated was the check-in. I was to fly from ATL to Chicago (American) then change to Japan Airline to go to Japan. I checked in, but I only got a boarding pass for the flight from Atlanta to Chicago. It said I would need to check in for a flight to Japan on Japan Airline site. When I tried to check in on JAL website, it said I need to check in American... It was very confusing.

service was excellent. crew very polite, courteous, and good service especially to passengers like me who is a wheelchair passenger

The flights were on time and the cabin crew were very nice. The only downside was that the food was not good

Very comfortab flight. The flight crew and service was terrific. The food was average at best.

Excellent service, excellent food and beverage options, plenty of legroom

Check in procedure is harder than with other airlines, infotainment system is outdated

great experience - staff were kind and attentive and food was excellent. very comfortable flight that felt much shorter than 14 hours.

JAL is an exceptional airline that shows the true heart of Japanese omotenashi service. If the option is available I’ll always chose it

I would like to add American food so tired of rice after being there for 10 days didn’t want anymore to pay an airline did not have my bag marked right so it is still sitting in O’Hare. I am home.

Food was excellent, the crew was exceptionally friendly, and the seats were comfortable. Bathroom were also kept very clean and odor free.

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.

Basic airline, aircraft and service. AA gets you from point A to B. My flight was delayed by 2 hours too.

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.

The seats on this flight weren’t as comfortable as we had expected. Even leaned back these seats left us feeling crappy in our backs. Also we had to use our own tablets for movies, but nothing in the seats in front of us to hold the tablets up.

The head rest is too big and cannot be placed differently/removed. Causes one head to tilt forward and increase back pain

Food was not great. Small seating area for business class

Horrible experience. They delayed our flight 7 hours!! We had to seat at the airport with kids on 4th July all day!

The flight was delayed an hour and a half while you tried to fix the plane so I missed my connecting flight in Chicago. In Chicago, it took an hour to get the luggage. Then the conveyor belt was broken where I have to transfer my flight from an international flight to the continuing flight so I had to carry a large suitcase through the airport. The elevators were broken in the airport. I paid people to carry the luggage for me up the escalators in two different areas. The person who helped me get the new flight was outstanding. The temperature in the airport in Chicago was horrible. We were all sweating. It was the day from hell. That was after two hours in a security line in Athens. I have TSA pre-checked and global entry and I still waited. Two hours in a security line. Something has got to be done to stream line this service. After I’ve been through all of that in Athens, why do I have to go through it again in Chicago. It was the worst travel experience I have had in a long time. Your bathrooms have gotten so small that you can hardly get your butt on the toilet. You’ve taken the airspace out of the inside of the top of the toilet. It really makes for a miserable experience. Also on a 4 1/2 hour flight from Chicago to Los Angeles. The only thing we’re given is a bag of pretzels. REALLY!!

1 flight cancelled Had to fly out of different city Flight at new departure city was delayed 3 hours causing us to miss connecting flights. By the time we did make it to Prague our luggage did not. Had to wait day and a half for luggage to be delivered. Customer service was not good. Agents did not arrive at gate until 5-10 minutes before boarding

Awful. Delayed flights, missed connection to Toronto. Hotel vouchers were for already booked hotels x3. Giant waste of my time

Boarding was great, and the crew were very friendly. The seats must have been a bit on the older side and you could feel some of the seat components through the padding. Also, the plugs did not work on the row's entertainment screen or charging ports. Checked bag was transferred for connecting flight, and we appreciated how early we had the connecting gate information.

Very easy ! Use the kiosk and bag drop and right to security within 10 min

Prefer not to have an almost 3 hour delay with useless communication that wasn't accurate.

After 3 hours of delays, they ended up cancelling my flight. And although I could purchase one-way tickets to get to my destination, they would not offer me these flights as compensation for the cancelled flight, and I didn't end up making it home until 13 hours after I was originally supposed to arrive. It made for an extremely strenuous end to an otherwise good trip.

It's kindof ridiculous that your system is even asking me about this since my flight was canceled and I wasn't rescheduled.

Bad service as well. Another 3hr delayed flight from chicago to Charlotte.

Very bad service the way back we was on the way for r two days very bad condition and waiting for luggage till now

United had no (zero) record of our flight. It took over an hour of us standing in line with surly employee while others waited to get resolved. I have never experienced such poor service and poor empathy.

Or the greatest and it ended up picking us up from Chicago to Toronto not sure who was tesponsible for the 4 hr delay. United should have been properly prepared for a scheduled flight from Austin to Chicago and they were not.

My flight was overbooked and they would not let me board. I had to book another flight and pay the full amount of that flight. I did not get any help at all from Air Canada or United Airlines.

Everything was made rather simple, so I appreciate that. All the people I dealt with from entering the airport in Jacksonville to my lonnnnnnng walk to my next gate in Chicago were excellent and very helpful.

Terrible. 3 missed flights and 24 hours delayed with lost bag and promised $100 compensation from United and absolutely nothing from them…

flight was delayed 6 hours for weather, then cancelled because of the crash in toronto, but none of the links to cancel or rebook my flights are working

Traveling to a place near O'Hare Intl?

Book flights to O'Hare Intl if you plan to visit one of these locations
Gurnee
Merrillville
South Haven
Oak Brook
Saint Joseph
Tinley Park
Hammond
Elk Grove Village
Des Plaines
Hoffman Estates
Portage
South Holland
Willowbrook
Lansing
Delavan
Northbrook
Alsip
Lisle
Elmhurst
Pleasant Prairie

Everything you need to know for your flight to O'Hare Intl

Information on the airport you'll fly into in Chicago