$426 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 4/21. 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
Sydney2 stops$1,103
Melbourne
Melbourne2 stops$895
Brisbane
Brisbane2 stops$829
Perth
Perth2 stops$1,275
Cairns
Cairns2 stops$1,297
Adelaide
Adelaide2 stops$933
Hobart
Hobart2 stops$1,504
Coolangatta
Coolangatta2 stops$1,316
Canberra
Canberra2 stops$1,583
Darwin
Darwin2 stops$1,561
Maroochydore
Maroochydore2 stops$1,703
Townsville
Townsville2 stops$1,247
Mackay
Mackay2 stops$3,212
Sydney
Sydney2 stops$1,103
Melbourne
Melbourne2 stops$895
Brisbane
Brisbane2 stops$829
Perth
Perth2 stops$1,275
Cairns
Cairns2 stops$1,297
Adelaide
Adelaide2 stops$933
Hobart
Hobart2 stops$1,504
Coolangatta
Coolangatta2 stops$1,316
Canberra
Canberra2 stops$1,583
Darwin
Darwin2 stops$1,561
Maroochydore
Maroochydore2 stops$1,703
Townsville
Townsville2 stops$1,247
Mackay
Mackay2 stops$3,212

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

mié., abr. 15 - mié., abr. 22
Multiple Airlines Logo
7:51 am - 10:35 am
ORD
-
BNE
35h 44m
2 stops
Multiple Airlines Logo
11:35 am - 5:35 am
BNE
-
ORD
33h 00m
2 stops
$829Multiple Airlines
dom., abr. 5 - mar., abr. 21
Air Canada Logo
8:50 am - 7:05 am
ORD
-
BNE
31h 15m
1 stop
Air Canada Logo
10:00 am - 5:01 pm
BNE
-
ORD
22h 01m
2 stops
$869Air Canada
dom., abr. 12 - lun., abr. 27
Multiple Airlines Logo
3:40 pm - 7:05 am
ORD
-
BNE
24h 25m
1 stop
Multiple Airlines Logo
10:00 am - 5:27 am
BNE
-
ORD
34h 27m
2 stops
$881Multiple Airlines
mié., mar. 25 - mié., abr. 29
Qantas Airways Logo
6:49 pm - 7:35 am
ORD
-
SYD
44h 46m
2 stops
Qantas Airways Logo
9:10 am - 2:16 pm
SYD
-
ORD
20h 06m
1 stop
$1,108Qantas Airways
mar., mar. 17 - jue., mar. 26
Qantas Airways Logo
5:55 pm - 7:35 am
ORD
-
SYD
45h 40m
2 stops
Qantas Airways Logo
11:20 am - 2:53 pm
SYD
-
ORD
19h 33m
1 stop
$1,109Qantas Airways
dom., abr. 26 - mar., jul. 28
Air New Zealand Logo
5:15 pm - 10:45 am
ORD
-
CNS
26h 30m
2 stops
Air New Zealand Logo
11:55 am - 11:16 pm
CNS
-
ORD
26h 21m
2 stops
$1,430Air New Zealand
sáb., abr. 11 - sáb., abr. 18
Air New Zealand Logo
8:03 pm - 4:00 pm
ORD
-
PER
54h 57m
2 stops
Air New Zealand Logo
11:50 pm - 12:45 am
PER
-
ORD
37h 55m
2 stops
$1,486Air New Zealand
sáb., ago. 22 - lun., sep. 7
ANA Logo
5:45 pm - 7:45 pm
ORD
-
HBA
59h 00m
2 stops
ANA Logo
9:55 am - 8:40 am
HBA
-
ORD
37h 45m
2 stops
$1,504ANA
sáb., ago. 22 - lun., sep. 7
ANA Logo
5:45 pm - 7:45 pm
ORD
-
HBA
35h 00m
2 stops
ANA Logo
9:55 am - 8:40 am
HBA
-
ORD
37h 45m
2 stops
$1,505ANA
mié., jul. 15 - mié., jul. 22
American Airlines Logo
7:00 pm - 1:05 pm
ORD
-
CBR
27h 05m
2 stops
American Airlines Logo
6:10 am - 6:04 pm
CBR
-
ORD
26h 54m
2 stops
$1,993American Airlines
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 $856 (return) on average. On the other hand, the most expensive months are December and July, when the average cost of round-trip tickets is $1,594 and $1,493 respectively.

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 1 week before departure. For the absolute cheapest price, our data suggests you should book 10 weeks before departure.

Good to know

Low seasonSeptember
Cheapest flight$426
Best time to beat the crowds but there is an average 2% increase in price.
Most popular time to fly and prices are also 15% 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 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.

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.
8.0
Fiji AirwaysOverall score based on 228 reviews
8.5Crew
8.1Boarding
7.5Food
8.0Comfort
7.5Entertainment
Airline reviews

Everything from the staff to the comfort of business class was excellent. This is one of my new favorite airlines.

10.0 ExcellentAnonymous, Feb 2026
DFW - NAN
Read more Fiji Airways reviews

Everything from the staff to the comfort of business class was excellent. This is one of my new favorite airlines.

Ticketing said dinner for the almost 14 hour flight and we were delayed an hour. However, onboard we were only served a sluce if pizza bread and a cookie. Not at all dinner and insufficient for a long international flight. Breakfast was good.

We have had an absolutely horrific experience so far getting home from Australia on a $18,000 + flight we booked with you. The flight did not deplane in Dallas because there was no available gate or staircase. We sat in the plane for 3 hours waiting to deplane. As a result we missed our connecting flight to New York. American Airlines put us up in a hotel several miles away. We waited 45 minutes for a shuttle and The shuttle driver was horribly rude and unhelpful. They offered us $70 vouchers for food but actually there was no food left when we arrived minus some chicken nuggets and corn dogs. It was awful. Horrible way to end a vacation. There has to be accountability here.

A bit cramped in economy and the people in front wouldn’t put their seats up during meal service, crew did not help with that and I felt they could have done more about it.

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.

My experience was great overall. Tanya was particularly friendly and helpful the entire trip. I was very pleased with her customer service skills. The plane was an older aircraft but the entire way was comfortable with barely any turbulence at all. Qantas should speed up its fleet renovation. Totally recommend using this airline.

Qantas is always subpar beyond comfy chairs for a domestic flight

I liked boarding the plane. The staff were rude, the food was appalling and the chairs the most uncomfortable I have ever experienced

an hour late, then had to disembark on back stairs and take 4 flights up to get to main airport. No warning, and difficulty for those with canes and poor knees.

Well my expórtenle with Qantas it wasn’t that good KLM from Bs Aires was delay Santiago Chile Qantas QF 028 was still in the airport but the crew didn’t opened the door for me soo I lost my fly And I stuck in the airport 13 hrs waiting for next fly by Latam Arline My question is can I have my money back for business class

It was ok, the additional baggage charges were a bit excessive given winter is a time for skiing. To have to pay $600 extra for skis was tantamount to robbery. Airlines should consider sporting goods as baggage. Likewise, they should consider increasing the number of bags allowed on international flights to known ski destinations.

Flight was canceled. I was not alerted. It was only kayak that alerted me

Flight was 2.5 hours late leaving. We spent 50 minutes of that sitting on the plane with no explanation. They did reduce the time in the air so we arrived a little less late which was something. The cheese and crackers were okay but the wine was terrible.

Couldn't access entertainment on app as said in an email

Excellent as always, I won't fly to Australia, and back to the US on any other airline. The flight crew is always top notch, and have a way to make one feel extra special. Thank you for your service, I would rate Qantas Airways a 10+.

This trip did not start off well. The inbound flight was delayed about 20 minutes. Then, after initial onboarding, the passengers had to deplane due to a mechanical problem. That took about 30 minutes to fix and be cleared. Then, reboarding was chaotic. It took a long time to sort passengers and two passengers on standby were ticketed but there was no seat. So, they had to deplane. One of the flight crew was trying to help passengers figure out a place to put their carry-on bags and that took more time. In the end, our scheduled 10:30 am departure did not actually take off until about 12:05 pm CST. The flight itself was long but we got to Houston. Some passengers missed their connecting flights and had to rebook. Not the best of flights I've had.

We were delayed for about an hour from taking off due to traffic control procedures at the destination airport. But once in the air, the flight went well. The crew members were great and provided cabin service despite moderate turbulence during much of the flight.

Short flight, but no drink/snack service. The flights both going and coming were delayed.

Not being stranded in Chicago for her airport to 11:30 tomorrow morning the 3rd

I was fully checked in the prior night and i was unchecked and then didn’t have a seat when I boarded. Instead of an aisle seat, I was out in the middle seat of the very last row of the plane.

In overall it was a good experience, the only down point was that the entertainment screen was working properly.

They lost my luggage, so, not happy. The crew was nice but my suitcases never made it, still trying to find out what happened!

I understand weather is an issue, but making us chase our plane down at five scheduled gates across three terminals in an airport the size of O'Hare was unfair. They'd have probably been better off to leave gates as TBD until the inbound plane is in final approach instead of running us all over the place. Also, props to the consistently-unprepared ground crew in Richmond for once again leaving my lane parked short of the gate because they couldn't have a crew in place on time with 2 hours notice...

cabin crew was OK, food was OK, the trip from the US to Munich was actually pretty bad comfort wise. Noisy aircraft, lights never dimmed even in Business class (night flight) barely sufficient amenities for the price. I have millions of miles with United but TBH American is gaining ground and Delta has always been marginally better then United although on paper United has more longes and cheaper upgrades.

Essy to get on. The hostess gave very little pop, the plane was late getting in, and we are still waiting for our bags. This sucks. :/

It was an older plane. First Class was not especially roomy or comfortable. It was a short flight so there were no meal but they did offer mixed nuts which used to be normal but now is rare. Crew member was very polite and professional.

Flight to Tampa was delayed taking off due to plane arriving late but no other issues

As previously stated the delay I experienced flying from Wichita to Chicago caused a host of issues. When I finally was able to be booked on the last remaining American flight from Chicago to Cincinnati, the gate changed four times with the last change occurring very near the scheduled boarding time. While I didn't have a problem moving from gate to gate, I did notice and make note of others that had mobility issues and had to move each time for the gate change.

Maintenance took a very long time and then we were in a holding pattern. While a one-off maintenance issue is standard, there were delays on both of my flights for this trip based on maintenance issues with the planes, which delayed both flights over 45 minutes. Thankfully, I didn't have any connections but it wasn't an experience that would make me pick AA if I have other options.

No Snacks or Entertainment. The flight was short, snacks should still be given.

See prior comment about how Kayak mishandled my reservation and delayed my arrival by 6 hours.

Boarding delayed 20 minutes for no reason, no wifi, in flight entertainment, or snacks / waters?

Delayed an hour due to operational issues. Minimal apologies or care for the significant inconvenience caused. Landed at nearly 1am and they still couldn’t find ground staff to get us off the plane promptly.

The aircraft had several problems - from excess fuel to non operational ac. Two hours of delay in Chicago could have been avoided with proper planning and aircraft maintenance.

Crew in Columbia was not prepared for landing. It was a bit of a disaster and getting bags took forever.

Flight was canceled due to mechanical issues. After a considerable wait in the queue, Air Canada customer service was very helpful to get us on another flight. I am disappointed to report our rescheduled flight is for three days from now. Three days of extra expenses and inconvenience is unacceptable.

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.

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

Information on your arrival and departure airports