$421 Find Cheap Flights from Australia to Chicago O'Hare Airport

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 2/10. 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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These are the airlines KAYAK users have selected most often from within our search results for flights to Chicago, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to Chicago, as well as popular online travel agencies
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Flights to O'Hare Intl - Travel Insights & Trends

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 day to fly to Chicago?

The average price of all round-trip flights to Chicago O'Hare Intl Airport clicked on KAYAK for each day over the last 12 months.
Based on KAYAK data, the cheapest day to fly to Chicago is Monday where round-trip tickets can be as cheap as $1,071. On the other hand, the most expensive day to fly is Friday, where round-trip prices are $1,613 on average.

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 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 February, where tickets cost $898 on average for return flights. On the other hand, the most expensive months are December and July, where the average cost of tickets from Australia is $1,651 and $1,387 respectively. For one-way flights, the best month to travel is March with an average price of $994.

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

The average price for all round-trip flights to Chicago O'Hare Intl Airport depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.
The cheapest time of day to fly to Chicago O'Hare Intl Airport is generally in the evening, when round-trip flights cost $1,274 on average. The most expensive time of day to fly to Chicago O'Hare Intl Airport is generally at night, which is peak travel time and where the average cost of a ticket is $1,432.

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. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

Good to know

Low season

March

High season

July

Cheapest flight

$421
Best time to beat the crowds with an average 19% drop in price.
Most popular time to fly with an average 6% increase in price.
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.

  • 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 8,521 direct flights from within Australia to Chicago O'Hare Intl Airport. The most common day for departures is Thursday, with 15% of flights taking off on this day.

See more FAQs

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

  • Book at least 1 week before departure in order to get a below-average price.
  • High season is considered to be January, November and December. The cheapest month to fly from Australia is February.
  • 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.
See more tips

Top 3 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.
7.5
Qantas AirwaysOverall score based on 824 reviews
7.4Comfort
8.1Crew
6.9Food
7.2Entertainment
7.6Boarding
Airline reviews

The old Plane had not been cleaned properly in a long time.

6.0 GoodAdam, Jan 2025BNE - ADL
Read more Qantas Airways reviews

The old Plane had not been cleaned properly in a long time.

Planes was old - business class seats looked like they were installed in the 80s

Our baggage didn’t arrive with us on the plane. Need I say more?

I got upgraded from economy to business, and the experience was outstanding

I have taken this flight many times. It is ALWAYS late. Every time there is significant delay (1-3 hours) before boarding. It’s very consistent. Even after boarding the expected landing time was delayed twice. The seats are very narrow and cramped. Food is barely editable. Considering an economy ticket often costs about $2,000 it’s one of the worst services ever.

Boarding was over 3 hrs late and we didn’t land until almost 1:30am

American Airlines was their usual junk service — but at least it got us down to LA. I was more irritated that while they codeshare with Alaska Airlines in Seattle, they could not out our flight on one of these, opting for one of the small SkyWest operated American Eagle flights — and causing a 14 hour layover. Which I accepted due to a $2000 difference in airfare — that said it was irritating for a flight that usually would have cost around $100 extra, if that.

nothing to complain about w/the food, and professionalism of the crew. i just cant stand being on a flight for that long of a time.

Everything was great from the staff to the seats and food. The plane was timely taking off and landing.. I couldn't have asked for a better experience (especially on such a long flight)

Good communication regarding any updates time of flight and flight delayed. The fight was delayed by two and half hours at eleventh hour. That was unexpected, especially when you international passenger.

There's just no way to sit fully upright and comfortably in these seats. There needs to be 2 more inches of room, and that's not something that only one person on the flight needs - the whole flight needs 2 more inches of room. If that means you sell 6 less seats, so be it. It's too close for anyone. Forcing people to pay for "premium" economy just to get "barely enough space to breathe" isn't really an answer to that.

The crew were very nice. The Chocolate is good and v there’s no entertainment. Thanks

The crew were very nice. I would have appreciated a pillow for comfort. I had a special meal that was sloppy, but the salad was great. Thanks

The plane was in Moline all night. Consequently, we assumed an on time departure at 8:15am. Unfortunately, and as is the normal case with United in Moline, we departed 2.5 hours late. When the crew came, it was discovered that there was very little heat in the plane. Seems this should have been checked hours before the crew arrived. Then when we boarded and the plane was to be de-iced, the United de-icing truck was not working! We awaited the American Airlines truck. All of this caused us to miss our connection in Chicago. My suggestion is never take United Airlines flight from Moline. We have been disappointed 80% of the time and have vowed to not take United again from Moline.

Flight was delayed two hours. No snacks and no tv screens. My bag got stuck in Chicago

The aircrew was solid, the flight was chill, I had no issues. The gate agent was not the best. I was trying to use a military bag upgrade to move my bag from under the seat to the overhead bins and he told me there’s no overhead bins on the plane, argued with me why booking put a military member in basic economy (I don’t really understand this) and made it an issue to even try to help me stating I’d have to call reservations to get a bag upgrade. When every other agent with United can add it at the gate, this man couldn’t be bothered.

lots of delays the crew were unclear about where to pick up my carry-on, which they took from me to check in on the plane.

They needed people to check a bag, they did check my bag and I had to wait 10 minutes after the flight to get it it wasn’t too bad

Did not even get on board. Was told I needed an esta agreement. Was not aware of this when I booked the fare and not told about them

Cramped seats. Audio jack for the in -flight entertainment was broken.

Seating was horrible. Small seats. Access to flight information and extras very iser unfriendly. Kept losing internet after paying for it. Staff in madison was as unprofessional and unhelpful.

Delayed due to no crew. On a major holiday travel day.

Other than being delayed 5.5 hours and having to get a hotel because I missed my connecting flight, it was an okay flight. No in-flight Wi-Fi or entertainment.

It was nice being on a flight that had working wifi. The boarding was quick - why don’t all airlines have small boarding groups window to aisle? Makes so much sense!!! I was disappointed to be the first person stopped to have to gate check my carryon. Especially when there was plenty of overhead space at the back! But I get it…keeps it moving. Crew was nice.

The flight from Buffalo to Chicago was on an older and smaller plane. Seating was tight. Looking closely at the interior of the aircraft there were definitely signs of aging and wear.

The flight encountered a delay exceeding 4 hours. The food voucher issued was valued at $12, insufficient to cover our meal expenses. Consequently, I was unable to take my medication, leading to a drop in blood sugar levels and exacerbating my anxiety.

Airplane was cold. Flight attendants were rude. Phone charger did not work. No food available.

3hour delay In the last 3 months i had 3 flights and 2 of these had a more than 2:40 hrs delayed

My initial flight to ORD was extended without reason. We circled the airport a few time and then drove on the ground for at least 20 minutes. These kinds of delays are annoying but somewhat expected… it would be nice if the crew would make an announcement to give updates on how long we could expect to be delayed.

Fantastic. I am low vision and was impressed with how helpful and accommodating the service tam was. It was super appreciated! I was pleasantly surprised about how delicious the food was. Like, “I wish I had more even though I’m no longer hungry” delicious. 100% enjoyable trip.

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

Information on the airport you'll fly into in Chicago

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