$548 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 11/20. 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, 0 bags

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Cheap Flights from O'Hare Intl to Australia

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Sydney
Sydney1 stop$950
Melbourne
Melbourne2 stops$942
Brisbane
Brisbane2 stops$968
Perth
Perth2 stops$1,123
Cairns
Cairns2 stops$1,709
Adelaide
Adelaide2 stops$1,121
Hobart
Hobart3 stops$1,616
Coolangatta
Coolangatta2 stops$1,750
Canberra
Canberra2 stops$1,350
Darwin
Darwin2 stops$3,614
Launceston
Launceston2 stops$3,736
Maroochydore
Maroochydore2 stops$1,785
Townsville
Townsville2 stops$1,650
Mackay
Mackay2 stops$3,200
Broome
Broome2 stops$2,553
Sydney
Sydney1 stop$950
Melbourne
Melbourne2 stops$942
Brisbane
Brisbane2 stops$968
Perth
Perth2 stops$1,123
Cairns
Cairns2 stops$1,709
Adelaide
Adelaide2 stops$1,121
Hobart
Hobart3 stops$1,616
Coolangatta
Coolangatta2 stops$1,750
Canberra
Canberra2 stops$1,350
Darwin
Darwin2 stops$3,614
Launceston
Launceston2 stops$3,736
Maroochydore
Maroochydore2 stops$1,785
Townsville
Townsville2 stops$1,650
Mackay
Mackay2 stops$3,200
Broome
Broome2 stops$2,553

Book Cheap O'Hare Intl to Australia Plane Tickets

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

Wed, Feb 25 - Fri, Mar 6
Qantas Airways Logo
7:39 pm - 5:15 pmORD-MEL
28h 36m2 stops
Qantas Airways Logo
12:00 pm - 5:41 pmMEL-ORD
22h 41m1 stop
$942Qantas Airways
Find Deal
Wed, Feb 11 - Thu, Feb 26
Qantas Airways Logo
9:02 am - 9:00 amORD-SYD
30h 58m1 stop
Qantas Airways Logo
7:05 am - 5:41 pmSYD-ORD
27h 36m2 stops
$950Qantas Airways
Find Deal
Sun, Dec 7 - Fri, Dec 12
Multiple Airlines Logo
6:50 am - 9:00 amORD-SYD
33h 10m1 stop
Multiple Airlines Logo
5:45 pm - 12:13 amSYD-ORD
23h 28m1 stop
$1,001Multiple Airlines
Find Deal
Mon, Nov 24 - Thu, Nov 27
Multiple Airlines Logo
8:10 am - 10:20 amORD-BNE
34h 10m2 stops
Multiple Airlines Logo
11:50 am - 12:59 amBNE-ORD
29h 09m2 stops
$1,002Multiple Airlines
Find Deal
Thu, Feb 26 - Thu, Mar 26
Air Canada Logo
3:40 pm - 4:20 pmORD-ADL
32h 10m2 stops
Air Canada Logo
6:10 am - 7:53 pmADL-ORD
29h 13m2 stops
$1,157Air Canada
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Thu, Feb 26 - Thu, Mar 26
Air Canada Logo
2:00 pm - 4:10 pmORD-ADL
33h 40m3 stops
Air Canada Logo
6:10 am - 7:53 pmADL-ORD
29h 13m2 stops
$1,164Air Canada
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Thu, Feb 26 - Thu, Mar 26
United Airlines Logo
12:46 pm - 9:30 amORD-ADL
28h 14m1 stop
United Airlines Logo
6:10 am - 6:51 pmADL-ORD
28h 11m2 stops
$1,558United Airlines
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Wed, Feb 25 - Tue, Mar 31
Air New Zealand Logo
10:35 am - 10:55 amORD-ADL
31h 50m2 stops
Air New Zealand Logo
2:20 pm - 2:27 pmADL-ORD
39h 37m2 stops
$1,611Air New Zealand
Find Deal
Wed, Feb 25 - Tue, Mar 31
United Airlines Logo
8:20 pm - 9:30 amORD-ADL
44h 40m1 stop
United Airlines Logo
7:40 am - 6:48 pmADL-ORD
26h 38m2 stops
$1,646United Airlines
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Tue, May 5 - Sat, May 16
Air New Zealand Logo
4:40 pm - 8:00 pmORD-TSV
36h 20m3 stops
Air New Zealand Logo
3:15 pm - 6:25 amTSV-ORD
54h 10m3 stops
$1,696Air New Zealand
Find Deal
Booking Insights

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 $854 (return) on average. On the other hand, the most expensive months are December and July, when the average cost of round-trip tickets is $1,468 and $1,377 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.

If your flying dates are flexible, you should consider flying to Australia on a Saturday, as we generally find the cheapest rates on that day for this route. On the other hand, Thursday is the most expensive day to fly from Chicago O'Hare Airport to Australia. For your return ticket, we recommend flying on a Monday and avoiding Sundays for the best 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 3 weeks before departure, which saves you about 40% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 3 weeks before departure.

Good to know

Low seasonSeptember
Cheapest flight$576
Best time to beat the crowds but there is an average 2% increase in price.
Most popular time to fly and prices are also 14% lower on average.
Flight from Chicago to Brisbane

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 travelers 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 round-trip 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 round-trip flights cost $1,185 on average. On average, there is no price difference when choosing to fly in the morning or the evening on this flight route. 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 $1,417.

Reviews of the top 5 airlines serving 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.
8.1
Fiji AirwaysOverall score based on 209 reviews
8.5Crew
7.5Entertainment
8.2Boarding
8.0Comfort
7.5Food
Airline reviews

The airline is ok, but it needs to improve it schedules.

6.0 GoodHon, Oct 2025NAN - SFO
Read more Fiji Airways reviews

The airline is ok, but it needs to improve it schedules.

Again, Fijian hospitality was genuine, very comfortable, only improvement would be the entertainment. Why Do they only have 5 episodes of TV shows and from like season three...

Fiji Airways was amazing, will definately be lfying them again. The "Fijian hospitality" is not a catch phrase, it is genuine. the only things that could be improved is the entertainment. Not a great choice of movies, and the TV shows only have about 5 or so episodes, and often of a random season.

They will look to squeeze every penny they can out of you!! Pick your seat$$...bring luggage$$$$... if they could charge you for the air on the plane they would!!

.very good and as I needed wheelchair assistance all staff excellent.. only suggestion is get rid of those plastic chairs hard to ride in and staff have trouble compared to others. Everything else very good experience. Will use Fiji Air again.

In-flight entertainment options could use a refresh, Consider a tie-up with Spotify for more current music and with IMDB or other service for newer selections/movie ratings.

See previous comments. Didn’t take this flight because my other flight was so delayed. Ending up on two other flights as a result and was more than a day late.

6 hour delay and they didnt try to make up any time during an over 10 hour flight

Very good; seat made ready for bed after meal, a plus since one airline covered the seat at the start.

Entertainment was not good. Seems like liquor should’ve been advertised only beer and wine was even though I saw others getting liquor didn’t realize I could. And the food to me could’ve been a little bit.

After already paying for excess luggage prior to flight, i was advised AT check in that i had to pay $816 or forfeit my flight! The lady at the counter was SO rude and had already started offboarding me when i said i would pay it after asking her three times for the exact amount! Have lodged a formal complaint yet heard nothing. Will not ever travel via Qantas again

A few more inches of legroom is all i ask

One of the best Qantas business flights I've had. Quality product

Business class points redemption - good value for points paid, dubious value if out of your own pocket, domestic class business product okay for this length of flight. The flight left and arrived on time, crew were good, aircraft was a bit old and tired, but still miles ahead of their competitors in Virgin and Jetstar.

Airline running better than post Covid, proper boarding process now implemented, some aircraft feeling a bit old and tired, crew fine, online experience better.

Five hour flight instead of four hours due to westerly headwinds which wasn’t the fault of Qantas !

The wifi was out. Otherwise it was great flight. Richard, as CSM, was excellent.

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.

Always wish for more healthy, gluten free options. We have to bring our own.

Having a long layover, I was very appreciative of the ability to stand by for an earlier flight. Other airlines like Delta have refused this to me in the past, just to be mean (because my ticket class wasn't high enough). United went out of their way to help me get to my destination early, which I really appreciated given that it was the third leg of a 24+ hour journey for me.

Other than a way way too cold cabinets for the entire flight, all was great

One bag is incorrect and not acceptable for an international flight. The food was not just good. I won't fly with them again.

Excellent flight. Smooth, efficient boarding. Quick flight. Arrived early at STL.

Not the fault of United—weather, reroute around weather, time sitting on tarmac, arrived couple hours late, too late for train into city necessitating a much pricier cab but weather…can’t be helped.

I will never book a flight through Cheap fare. They booked me from Portland Main . And would not give me a refund, so I bought 2 tickets one for 299. From Portland Main to ORD. Then I had to buy a ticket from Oregon PDX to ORD that was another 440. So Just so you know they even told me it was there fault but no refund. Bad bussniess. I did inform United but they said they couldn't help me due to the fact I booked through Cheap Tickets. Never again. And I'm spreding the word. I let everyone know at my 50th class reunion

The flight attendants were rude. Seemed like they didn’t want to be there. Except for one girl that was really nice. Seats are sooooo uncomfortable. They give you a piece of paper and a thin cushion for a pillow and blanket that does nothing. Airlines have gone way downhill, especially United international flights. Food was disguting. Definitely flying ANA next time.

Crew and customer service were excellent. This flight also had plenty of leg room and seat mounted screens for entertainment. A very pleasant flight all around!

It would have been better if the crew has supported my husband's reasons for needing to keep the space clear around his feet, rather than insisting that he put his knapsack in that space.

We loved the steward on the plane. He made the night enjoyable

The plane was late, when we did board the plane was as cold as a freezer. I was freezing the entire flight, no blankets. Lost miserable flight I’ve ever had.

My wife and I love to travel, so we fly a lot. We've already logged 381,075 miles and with practically every major airline. But this flight was very disappointing. It started off well, with no delays and a new plane. But when lunchtime approached, all that good impression was ruined. Instead of white tablecloths, we were offered small, dark placemats, which, as it turned out, were perfectly adequate for the food. All the food offered—and my wife and I only took fish, and the meat—was not just bad, it was downright disgusting and not heated enough. The same applies to the appetizers. This was the first time in many years of traveling that we've been offered such disgusting food.

Lost luggage stuck no clothes and no word after 2 days leaving on cruise no stuff or clothes

3 hour weather delay followed by 1 hour (and counting) maintenance delay. UGH!

After we'd boarded , they canceled the flight. The crew didn't even know , we just all received text messages. Then after they deplaned us , AA was just like "too bad, go F your self, we sure ain't gonna help you"

After a two hour delay, my flight was CANCELLED! No pilot available. Such BS.

Amazing food, great staff, with one noticable detail missing ...but no seat entertainment in any of aircraft ...I am not a fan

I wish American Airlines would change the airline industry by loading the plane back to front instead of front to back. Planes would board so much more smoothly and quickly.

I have long legs, my foot was out in the aisle and when a flight attendant came walking by and I didn't notice, instead of saying "excuse me" or anything like that, she kicked my foot. Extremely rude

Short flight. Everything was fine except the flight was delayed twice for a total of an hour.

There labor disputes cancelled my flight less than 24 hours before my boarding time but there customer service/website was easy enough to navigate and they rebooked me for no upcharge.

Very bad, flight was cancelled due to strike and staff was unable to rebook us

Flight was delayed by 1.5hrs. Once inside, people had their small handbags on the storage. The crew (male guy) was not helpful in making some space in the storage. Instead, he asked few bags to be checked-in and it was not a great experience. No attempt to help but just followed the things with a straight face. People had their literally small bags and he wouldnt not move from one storage to another even if there was space and would not let us do i as well. Once flight was on, they ran out of Orange juice, really running out of orange juice when the temp were 32.degrees outside. didnt made the sense. Onasking for a extra snack, he made a face as if he was giving me out of his pocket. if the flight was delayed, there could have an attempt to provide something extra incase people did asked.

Abandoned me in hallway in a wheelchair… which I asked for because I sprained my back. After waiting in the hallway, I decided to walk the rest of the way since someone respecting me up.. My experience with the united was totally the opposite. Wheelchair access, propped swift and save me a lot of grief. Air Canada totally disorganized.

Terrible confusion btw air Canada and United. Wasn’t able to change ticket because I had purchased on kayak. Rethinking booking tickets on this site, and will try to avoid United and aircanada going forward.

Conflicting information provided about baggage allowance. One screen said I had a carry on and another said I didnt.

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.

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

Information on your arrival and departure airports