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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 5 days
Sydney
Sydney2 stops$1,317
Brisbane
Brisbane3 stops$1,169
Perth
Perth2 stops$1,286
Cairns
Cairns2 stops$1,457
Adelaide
Adelaide2 stops$1,149
Hobart
Hobart2 stops$1,531
Canberra
Canberra2 stops$1,300
Darwin
Darwin2 stops$1,762
Launceston
Launceston2 stops$1,861
Townsville
Townsville2 stops$10,040
Sydney
Sydney2 stops$1,317
Brisbane
Brisbane3 stops$1,169
Perth
Perth2 stops$1,286
Cairns
Cairns2 stops$1,457
Adelaide
Adelaide2 stops$1,149
Hobart
Hobart2 stops$1,531
Canberra
Canberra2 stops$1,300
Darwin
Darwin2 stops$1,762
Launceston
Launceston2 stops$1,861
Townsville
Townsville2 stops$10,040
Booking Insights

Price, demand and travel trends for Chicago O'Hare Intl Airport to Australia flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

Are flights from Chicago O'Hare Intl Airport to Australia cheaper or more expensive than last year?

Fares from Chicago O'Hare Intl Airport to Australia are running about 28% higher than they were around this time last year, averaging $1,433 round-trip.

What are the cheapest fares from Chicago O'Hare Intl Airport to Australia right now?

Here are the cheapest round-trip fares from Chicago O'Hare Intl Airport to Australia on KAYAK in the last week:

• Melbourne (MEL) from $1,070
• Brisbane (BNE) from $1,169
• Perth (PER) from $1,286
• Adelaide (ADL) from $1,291
• Canberra (CBR) from $1,300

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

February is the cheapest time of year to fly, with average fares of $1,334. Prices are highest in December, when average flight costs increase to around $1,853.

When is the best time to book flights from Chicago O'Hare Intl Airport to Australia?

Book your flights 10 weeks before your trip. KAYAK data collected over the past 12 months shows that booking in this window can save you around 19% compared to booking last-minute (within 2 weeks of departure).

Which airport in Australia is the cheapest to fly to from Chicago O'Hare Intl Airport?

Based on KAYAK data from the past 12 months, the cheapest airports to fly into Australia are:

• Sydney Kingsford Smith (SYD) from $1,424
• Brisbane (BNE) from $1,432
• Adelaide (ADL) from $1,457

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

Monday tends to be the cheapest day to fly from Chicago O'Hare Intl Airport to Australia, while Friday is the most expensive. Fares run about 15% higher that day, based on the past 12 months of KAYAK data.

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

Data from the past 12 months shows it's cheapest to fly to Australia during the morning with average prices of $1,501. The night is the most expensive time to fly, with average prices of $2,117.

Key details for Chicago O'Hare Intl Airport to Australia flights

Low season

October

Cheapest flight

$580
Beat the crowds with an average 27% drop in travelers.
The most popular month to fly with an average 35% increase in travelers.
One-way flight from Chicago O'Hare Intl Airport to Perth

Your Chicago O'Hare Intl Airport to Australia flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • Is now a good time to book a flight from Chicago O'Hare Intl Airport to Australia?

    Yes. Fares from Chicago O'Hare Intl Airport to Australia are low right now. As a rule of thumb, a round-trip under $1,259 (cheaper than most fares this year) is a good deal, so if you spot one at or below that, it's a good time to book.

  • How much should I budget for a flight from Chicago O'Hare Intl Airport to Australia?

    Over the past 12 months, round-trip fares from Chicago O'Hare Intl Airport to Australia have ranged from $1,259 to $1,828.

  • What are the main airports serving Australia?

    Australia has 145 airports. The three busiest are Sydney Kingsford Smith (SYD) (58% of arrivals), Melbourne (MEL) (20%) and Brisbane (BNE) (9%).

  • What airlines fly nonstop from Chicago O'Hare Intl Airport to Australia?

    Based on the flight schedule for the next 3 months, no airline regularly operates nonstop flights from Chicago O'Hare Intl Airport to Australia. One-stop options include:

    • United Airlines
    • American Airlines
    • Delta

  • Which cabin classes are available on flights from Chicago O'Hare Intl Airport to Australia?

    On flights from Chicago O'Hare Intl Airport to Australia you can book Economy Class, Premium Economy Class, Business Class or First Class.

  • What are some popular landmarks in Australia?

    KAYAK travelers' favorite landmarks in Australia include:

    • Sydney Opera House
    • Marvel Stadium
    • Melbourne Cricket Ground
    • Crown Casino

Your guide to booking Chicago O'Hare Intl Airport to Australia flights

Get tips on when to book, when to fly and what to know before your trip.
  • If you can plan ahead, the sweet spot for booking your flight is 10 weeks before your trip. KAYAK data shows fares in this window are around 19% lower than last-minute bookings (made within 2 weeks of departure). Not ready to commit? Set a Price Alert and we'll let you know when prices change.
  • If your travel dates are flexible, book your trip for February when flights are typically cheapest and avoid December when prices are at their highest.
  • Flying on Monday is usually the cheapest. Flights on Friday cost about 15% more on average, so being flexible with your travel dates could help you save.
  • If you're looking to save, Sydney Kingsford Smith (SYD) is the cheapest airport to fly into from Chicago O'Hare Intl Airport. If you have onward travel, don't forget to factor in the cost of your journey by train, bus or domestic flight.
  • Start your trip in Sydney, which is the most popular destination in Australia. From there, it's easy to continue on to other popular destinations such as Melbourne, Brisbane and Perth.

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
Air New ZealandOverall score based on 675 reviews
7.9Comfort
7.4Entertainment
8.2Boarding
8.5Crew
7.4Food
Airline reviews

Needed more leg room. Leg rest and entertainment system box took up a lot of space and I'm not tall. Breakfast was good. Poor quality of the entertainment options.

6.0 GoodCraig, Apr 2026
Read more Air New Zealand reviews

Needed more leg room. Leg rest and entertainment system box took up a lot of space and I'm not tall. Breakfast was good. Poor quality of the entertainment options.

We had difficulty checking in as United didn’t recognize the confirmation number and the agent was not helpful. We went to the United Assistance desk where the agent was able to process our reservation. We also weren’t allowed to choose seats in advance.

Aircon set too high so VERY warm and VERY uncomfortable.

Great! Flight was delayed by 30 mins but all was great. Thanks.

Arriving at Coolangatta, rows 20 forward, took the airbridge across to the terminal. It was suggested to those from rows 21 back, that we take the rear stairs and to be careful crossing the tarmac. That was all well and good. However, when we got across to the terminal we then had to climb three large flights of stairs to meet up with those coming across the airbridge. No elevator! There were people carrying babies and elderly carrying hand luggage that needed assistance from others.. There was no option to turn back.

Flew premium economy, well worth the extra. Much better seat size & space. Meals & snacks were lovely. Crew really pleasant. Internet is not great, not really useful for anything. Couldn't even send messages.

Everything was fine. Wish the wifi was free and included in the ticket price.

Overall, a great experience from food and crew. The only setback was that this was the Second flight from Air New Zealand within a week that was an hour late for boarding.

The air New Zealand employees who assisted us with wheelchair aid on Auckland made our transfer from flight to the next seamless. Also were amazing in helping with our luggage and customs in Brisbane.

All was good, the only thing was it didn't run on time.

Despite having numerous passengers held up by American Airlines delays. Qantas (an AA partner) closed boarding with 0 flexibility

Boarding , crew and meals were all amazing. Couldn't wish for a better LOOONG flight from Dallas to Sydney .

Boarding was effortless, the food was outstanding, the seats in Premium Economy were extremely comfortable, and the staff and crew were excellent.

PREMIUM ECONOMY - excellent !Brilliant new plane. Excellent tv catalogue. Good food. Good communication and service from all friend Australian crew. Good communication from captain. Best travel experience in years.

I couldn't hear all of the announcements. It was nice when they put them on the screen.

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

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

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

The food was terrible. And the flight attendants were very rude. One flight attendant wouldn’t help a passenger lift their carry-on. Another flight attendant wouldn’t give a man an extra blanket. And they walked by not even looking at the passengers to see if they needed a glass of water.

I have flown Qantas multiple times in the past it seemed this flight the plane had less seat room or the seats were way less comfortable than before. Everything else was about the same. Thanks

Takeoff delayed 2 hrs. Boarded on time to find we were missing part of the flight crew. Then informed that they had loaded too much fuel. Spent 1 1/2 hrs sitting there burning off the excess, which included a couple of laps around the runway until we were light enough to fly! Ridiculous!

I especially enjoyed having a lightly packed flight which enabled me and my wife to occupy a three seat area with nobody in the middle seat.

The seats are very small, that is all the staff did a good job.

It was great. The staff is always helpful and polite. The app is great and makes the whole trip and process so easy. They even offer a step to step guide to your correct terminal. And they keep all the information you'll need updated. Anything you can think of! Great experience.

Perfect. On time and the weather was perfect so we came in a few minutes early.

On time. Carry on and personal bag was accommodated on the plane. Entertainment was accessible without bringing own device. Whole can of juice was provided rather than a pour.

Price was crazy watch it if you Chan he your flight

On time, easy boarding. Anytime you sit in an economy seat, it’s uncomfortable. New plane and the bathrooms were in the galley at the back of the plane which seemed odd.

Terrible service - they don’t want to be there and bad food. Entertainment system in economy from the 2000s

No drink service but there was no N/A as an option to choose. Seats were extremely tight. I am under 5.5 and I bumped my knees have no idea how taller people could manage.

Wonderful experience. Long distance travel is never easy but this flight was a treat. Flight crew was very attentive and friendly

Same as my Tulsa to Chicago flight, this one was quick and professional.

Boarding was delayed 50 minutes. The flight going to Chicago was canceled, causing lots of problems and causing me to rebook and miss an event. I was traveling with a colleague, and he was unable to get on the same flight after 40 minutes on the phone, which meant I had to wait for him after my arrival. My flight down was delayed an hour before take off, had to sit on the plane, then 30 minutes after landing to get to a gate. No real food, only juice/ water offered for the 3.5 hours on the plane. Not a good experience.

The code sharing reservation with United was messed up requiring extra trip to airport to fix. Air Canada customer service 2.5 hours on hold and resolved nothing.

I'm 6'8" (2.03m) so more legroom would alwqys be appreciated, especially on long international flights. The food choices were underwhelming.

Didn’t make it on the flight. Delayed then had to be rebooked, which in turn had me waiting at the airport for another 8 hours before next flight

the check-in lady at ORD was extremely rude and unprofessional. very disappointed as it was supposed to be a celebration for my wife's birthday and it really put a damper on things. if i wanted to be treated like trash, i would have flown Economy! (as opposed to business class)

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

Crew were helpful, pilot kept us informed about turbulence, snack choice was awesome!

It was one of the worst I have ever had. The plane was over booked, and I did not have a seat. When I questioned why because I had booked this weeks in advance. I was brushed off to be advised they are trying to find someone to give up their seat. Only to be advised I would be boarding last. I had priority boarding in group 1-4. When I asked why I had to be last because that is not what I paid for I was advised it doesn't matter you will get a seat. The ticket person was very rude and unprofessional. The gate changed several times and it was going from one area to another area far away from where we were at. I feel like I should have been compensated in some kind of way because of the way I was treated. The ticket agent acted like it was my fault that the plane was over booked. Not one time was I apologized to for this inconvenience.

We did not fly on American Airlines from Chicago to London. We were rebooked on British Airways (by American Airlines) and our luggage was left behind. A full day delay and lost luggage.

I have posted the comments in the first flight leg.

First class snacks - stewardess gave out multiples to everyone until there was almost no selection left when she got back to me last in first class cabin. Nothing left that I would eat.

My feedback from the trip to Columbia to Chicago was meant for Chicago to Denver.

The WiFi was out gr entire flight. Had to Diane for almost 1 hour to wait for a gate to open up for plane to dock. Very bad experience.

After boarding, the AC was shut off on the flight. At business class, I really could not breathe. I was absolutely dripping sweat. I was told by the FA that there was nothing they could do but I could stand by the door until departure. So, that's what I did. I was clearly in the way while the FAs were trying to do their work, but I had to be able to breathe. After that, of course, I had sweated up a lot so was very uncomfortable for the six hour flight.

DELAYED AGAIN and AGAIN and AGAIN - not only that, you delay in 20 minute increments for hours and hours instead of having an accurate delay understanding.

AA was fine....the overall experience was subpar, but not due to the airline due to broader issues

More options for your flight from O'Hare Intl to Australia

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