$697 Find Cheap Flights from Chicago O'Hare Airport to Australia

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from O'Hare Intl to Australia departing on 26/8. 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.
1 adult
1 adult, Economy

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Best Australia Flight Deals from O'Hare Intl

Cheapest return prices found by our users on KAYAK in the last 72 hours
Sydney
Sydney1 stop$1,604
Brisbane
Brisbane2 stops$1,747
Perth
Perth2 stops$1,913
Adelaide
Adelaide2 stops$2,029
Cairns
Cairns2 stops$2,307
Canberra
Canberra2 stops$2,016
Sydney
Sydney1 stop$1,604
Brisbane
Brisbane2 stops$1,747
Perth
Perth2 stops$1,913
Adelaide
Adelaide2 stops$2,029
Cairns
Cairns2 stops$2,307
Canberra
Canberra2 stops$2,016

Cheap Flights from O'Hare Intl to Australia

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from O'Hare Intl to Australia 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 return flight deals from O'Hare Intl to Australia

Wed, 2 Jul - Thu, 17 Jul
 Logo
07:42 - 07:30ORD-SYD
32h 48m1 stop
 Logo
17:45 - 06:03SYD-ORD
27h 18m2 stops
$1,604
Find Deal
Tue, 21 Oct - Sun, 2 Nov
 Logo
06:00 - 07:30ORD-SYD
33h 30m2 stops
 Logo
11:15 - 06:01SYD-ORD
34h 46m2 stops
$1,613
Find Deal
Tue, 12 Aug - Tue, 19 Aug
Fiji Airways Logo
18:20 - 10:25ORD-BNE
25h 05m2 stops
Fiji Airways Logo
11:35 - 20:57BNE-ORD
24h 22m2 stops
$1,747Fiji Airways
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Tue, 25 Nov - Thu, 25 Dec
Air Canada Logo
09:00 - 08:40ORD-BNE
31h 40m2 stops
Air Canada Logo
10:45 - 14:39BNE-ORD
19h 54m1 stop
$1,798Air Canada
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Tue, 25 Nov - Thu, 25 Dec
Air Canada Logo
09:00 - 08:40ORD-BNE
31h 40m2 stops
Air Canada Logo
05:35 - 19:32BNE-ORD
29h 57m3 stops
$1,842Air Canada
Find Deal
Tue, 12 Aug - Wed, 20 Aug
Fiji Airways Logo
18:20 - 10:25ORD-BNE
25h 05m2 stops
Fiji Airways Logo
11:35 - 21:03BNE-ORD
24h 28m2 stops
$1,870Fiji Airways
Find Deal
Wed, 22 Oct - Wed, 29 Oct
Alaska Airlines Logo
06:00 - 07:30ORD-SYD
33h 30m2 stops
Alaska Airlines Logo
17:25 - 05:01SYD-ORD
27h 36m2 stops
$1,922Alaska Airlines
Find Deal
Wed, 17 Sep - Tue, 23 Sep
Alaska Airlines Logo
06:20 - 07:30ORD-SYD
34h 10m2 stops
Alaska Airlines Logo
17:45 - 07:03SYD-ORD
28h 18m2 stops
$1,924Alaska Airlines
Find Deal
Wed, 22 Oct - Wed, 12 Nov
Qantas Airways Logo
15:07 - 05:00ORD-MEL
21h 53m1 stop
Qantas Airways Logo
12:00 - 15:52MEL-ORD
20h 52m1 stop
$2,072Qantas Airways
Find Deal
Tue, 2 Sep - Tue, 14 Oct
Qantas Airways Logo
19:03 - 07:30ORD-SYD
21h 27m1 stop
Qantas Airways Logo
10:10 - 17:02SYD-ORD
22h 52m1 stop
$2,094Qantas Airways
Find Deal
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KAYAK's insights & trends for O'Hare Intl to Australia flights

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Chicago O'Hare Intl Airport to Australia, 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 from Chicago O'Hare Intl Airport to Australia is March, when tickets cost $1,316 (return) on average. On the other hand, the most expensive months are December and October, when the average cost of return tickets is $2,250 and $2,106 respectively.

What’s the cheapest day of the week to fly from Chicago O'Hare Airport to Australia?

The average price of all round-trip flights from Chicago O'Hare Intl Airport to Australia clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Australia on a Friday and more expensive on a Thursday. On your return trip to Chicago O'Hare Airport, you should consider flying back on a Monday, and avoid Sundays for better deals.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Chicago O'Hare Intl Airport to Australia, 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 on the flight from Chicago O'Hare Intl Airport to Australia, you should book around 4 weeks before departure. For the absolute cheapest price, our data suggests you should book 25 weeks before departure.


Good to know

Low seasonSeptember
High seasonMay
Cheapest flight$697
Best time to beat the crowds but there is an average 8% increase in price.
Most popular time to fly and prices are also 24% lower on average.
Flight from Chicago O'Hare Airport to Sydney

FAQs - booking Australia flights

  • How does KAYAK find such low prices on flights from Chicago O'Hare Airport to Australia?

    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 from Chicago O'Hare Airport to Australia.

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

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

  • What is the Hacker Fare option on flights from Chicago O'Hare Airport to Australia?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from Chicago O'Hare Airport to Australia 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 from Chicago O'Hare Airport to Australia?

    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 from Chicago O'Hare Airport to Australia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Australia?

    The cheapest time of day to fly to Australia is generally in the evening, when retur flights cost $1,180 on average. Morning departures are around 100% cheaper than evening flights, on average. The most expensive time of day to fly to Australia is generally at night, which is peak travel time and where the average cost of a ticket is $1,621.

Top airlines flying from O'Hare Intl to Australia

 
Need help choosing which airline to fly with from O'Hare Intl to Australia? 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 854 reviews
8.2Crew
7.7Boarding
7.4Comfort
6.9Food
7.1Entertainment
Airline reviews

Was bumped to a later flight because of inefficiency on part of the airline.

4.0 OkayAnonymous, May 2025SYD - ADL
Read more Qantas Airways reviews

Was bumped to a later flight because of inefficiency on part of the airline.

The Emerits/Qantas flight was cancelled to Wellington. We need a refund. Had to buy another airline ticket. How do we get the refund. Still not in Wellington.

Delayed QF59 flight once again, Qantas doesn't fail in maintaining there delayed departures and arrivals. USB points do not work nor do the power point sockets on the plane, Qantas staff admitted that on the flight. Don't expect to your charge devices. Saving grace, was the ice cream. Bottom line, if you expect to fly to HND and make it on time avoid Qantas and if you're interested in ice cream - visit 7/11.

Pretty excellent. I don’t know what the pilot could have done better with the bumping ( there was a storm) nor what happened to my ears coming down into bendigo. It doesn’t happen coming down into Sydney just the return flight. I wonder why?

Loved the staff. The economy seats could have been bigger.

Airport and crew experience was excellent. We had to queue for the runway - no one’s fault, but it did mean we were 30 minutes late leaving

Overall good experience with flight and airport wheelchair staff. Also got Indian food in the flights

I liked the service, the menu, and the comfort of the seats! Even tho we were seated by the bathrooms, the reclining seats and movie selection was very good, my husband and I didn’t mind at all

Very good as always, stand out airline. The passengers whom choose to stuff baggage that otherwise should be checked-in is a real bother but that's not the airlines doing. A real frustration that passengers just don't want to check-in luggage. This is a pet hate unfortunately.

It’s a two prop flight so I had problems with my ears on re- entering ! But otherwise fine

Flight was delayed but the real issue is how long we sat after boarding. Space very limited for an overnight flight and seatbacks didn’t recline so it was almost impossible to sleep.

The staff made sure I was comfortable, moved me to a better seat with more leg room

Easy boarding and comfortable seating were plusses. Enjoyed the experience and good service from the captain and crew. Many thanks...!

Somehow, my booking was under my preferred name instead of my legal name so they almost didn’t let me board the plane at LAX. This problem should have been notified to me when I was still in Toronto.

Great overall. Quick boarding, attentive staff - great experience in premium class.

I think overall both Air Canada and Air New Zealand did a good job the their flights. It is nice to have movies, music, podcasts etc to watch for the long flights. Just wish the seats were wider and had a foot rest to change my leg positions during the trips.

Miserable staff as it was a late/delayed flight and crew wasn’t in the best spirits. Completely understood as neither was most of the passengers. Still unacceptable l.

It was a short flight, and no entertainment. That was not a problem for us, but there is no option for "not applicable". There was a bit of turbulence, so there was no food service.

All was good except for the seats, not very comfy.

2.5 hour delay sitting in the plane on the tarmac, you tell me how the experience was

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

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