ORD - SYD

$790 Find Cheap Flights from Chicago O'Hare Airport to Sydney – Compare and Save

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 Sydney departing on 11/8. 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, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Sydney

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chicago to Sydney, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chicago to Sydney, as well as popular online travel agencies
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Everything you should know

Cheapest return fare
$1,861
Typical prices: $2,044-$1,205
ANA
Sat 7/11Wed 18/11
ORD - SYD • 2 stops
Cheapest one-way flight
$790
Typical prices: $1,095-$1,312
Multiple Airlines
Tue 11/8
ORD - SYD • 1 stop
Top airlines
Cheapest • from $1,861 (return)
Best reviews • 7.5 score
Airline reviews
Airline reviews
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Airline reviews
Airline reviews
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Direct flights
Not available
There are currently no direct flights between O'Hare Intl and Sydney. You’ll need at least 1 connection.
Insights
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Top stopover airports
Cheapest • Avg $2,157 (return)
Shortest trip • 21h 38m (one-way)
Insights
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When to book
in advance
Our data shows that travellers who book at least 5 weeks in advance save around 14% compared to booking last minute.
Insights
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Insights
When to travel
Cheapest • 15% price drop
Most popular
Good to know
Good to know
+1
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Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Sydney!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from O'Hare Intl to Sydney (ORD-SYD)

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

Sat, 7 Nov - Wed, 18 Nov
ANA Logo
20:00 - 20:15
ORD
-
SYD
31h 15m
2 stops
ANA Logo
21:45 - 07:20
SYD
-
ORD
26h 35m
1 stop
$1,861ANA
Wed, 26 Aug - Tue, 1 Sep
ANA Logo
17:45 - 19:10
ORD
-
SYD
34h 25m
1 stop
ANA Logo
11:45 - 04:45
SYD
-
ORD
32h 00m
2 stops
$1,864ANA
Mon, 24 Aug - Fri, 4 Sep
ANA Logo
19:50 - 19:10
ORD
-
SYD
32h 20m
2 stops
ANA Logo
11:45 - 04:45
SYD
-
ORD
32h 00m
2 stops
$1,867ANA
Fri, 6 Nov - Thu, 19 Nov
ANA Logo
16:25 - 20:15
ORD
-
SYD
34h 50m
1 stop
ANA Logo
12:25 - 15:15
SYD
-
ORD
43h 50m
2 stops
$1,869ANA
Sat, 8 Aug - Tue, 18 Aug
Multiple Airlines Logo
21:13 - 07:30
ORD
-
SYD
43h 17m
1 stop
Multiple Airlines Logo
17:50 - 06:19
SYD
-
ORD
27h 29m
1 stop
$1,873Multiple Airlines
Mon, 24 Aug - Mon, 31 Aug
ANA Logo
19:50 - 09:25
ORD
-
SYD
46h 35m
2 stops
ANA Logo
11:45 - 04:45
SYD
-
ORD
32h 00m
2 stops
$1,874ANA
Sat, 7 Nov - Wed, 18 Nov
ANA Logo
20:00 - 20:15
ORD
-
SYD
31h 15m
2 stops
ANA Logo
21:45 - 14:12
SYD
-
ORD
33h 27m
2 stops
$1,876ANA
Fri, 14 Aug - Wed, 26 Aug
ANA Logo
17:45 - 19:10
ORD
-
SYD
34h 25m
1 stop
ANA Logo
11:45 - 20:33
SYD
-
ORD
47h 48m
2 stops
$1,877ANA
Tue, 25 Aug - Tue, 1 Sep
ANA Logo
17:45 - 09:25
ORD
-
SYD
24h 40m
1 stop
ANA Logo
11:45 - 20:26
SYD
-
ORD
47h 41m
2 stops
$1,879ANA
Sun, 23 Aug - Sun, 6 Sep
ANA Logo
17:45 - 09:25
ORD
-
SYD
24h 40m
1 stop
ANA Logo
11:45 - 20:26
SYD
-
ORD
47h 41m
2 stops
$1,880ANA
Booking Insights

KAYAK's insights & trends for O'Hare Intl to Sydney flights

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

How much is a return flight from Chicago O'Hare Intl Airport to Sydney?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from Chicago O'Hare Intl Airport to Sydney departing in November.

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

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 Sydney, 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 Sydney is November, where tickets cost $1,696 (return) on average. On the other hand, the most expensive months are July and December, where the average cost of round-trip tickets is $2,403 and $2,368 respectively.

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

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 Sydney, 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 Sydney, you should book around 5 weeks before departure, which saves you about 14% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 10 weeks before departure.

Good to know

Low seasonJuly
Cheapest flight$790
Best time to beat the crowds but there is an average 20% increase in price.
Most popular time to fly (18% more expensive on average)
Flight from Chicago O'Hare Airport to Sydney

When to book flights from O'Hare Intl to Sydney

Are your dates flexible? Find out the best times to travel from O'Hare Intl to Sydney based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Chicago O'Hare Airport to Sydney flights

  • US citizens need a visa to travel to Sydney, Australia. US citizens can also apply for various visas, including student visas, employment visas, family visas, visitor visas, Evisitor visas, Electronic Travel Authority (ETA), Work and Holiday visas, depending on their circumstances. It's important to note that visa requirements may vary depending on the purpose and duration of the trip, and each application is subject to individual assessment.

    What is the luggage allowance on Air New Zealand flights from Chicago O'Hare Airport to Sydney?

  • Air New Zealand allows economy class passengers to bring one cabin bag that weighs no more than 15 lbs. The class also includes one checked bag not exceeding 50lbs. Premium Economy passengers can bring two bags, each weighing no more than 50 lbs while Business Premier passengers can bring three bags each weighing no more than 50 lbs.

    What services does Delta offer for passengers in economy class on flights from Chicago O'Hare Airport to Sydney?

  • Delta offers various services to passengers in economy class on flights from Chicago O'Hare Airport to Sydney. These include complimentary snacks and beverages, in-flight entertainment, such as movies, TV shows, and music, Wi-Fi access at an additional cost, and comfortable seating.

    What seat selection options are available on flights from Chicago O'Hare Airport to Sydney with Qantas Airways?

  • Qantas Airways offers several options for seat selection on their flights from Chicago O'Hare Airport to Sydney. Passengers can choose a standard seat at the time of booking or during check-in at no extra cost. Passengers can also decide to upgrade to seats with extra legroom for an additional fee. These seats are typically located in exit rows or at the front of the cabin.

    Can I cancel my booking for flights from Chicago O'Hare Airport to Sydney with Air Canada?

  • What is the cheapest flight from Chicago O'Hare Intl Airport to Sydney?

    In the last 3 days, the lowest price for a flight from Chicago O'Hare Intl Airport to Sydney was $790 for a one-way ticket and $1,861 for a return.

  • Which aircraft models fly most regularly from Chicago O'Hare Airport to Sydney?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Chicago O'Hare Airport to Sydney?

    oneworld is the only airline alliance operating flights between Chicago O'Hare Airport and Sydney.

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

    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 Sydney.

  • 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 Sydney?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Sydney from Chicago O'Hare Airport 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 Sydney?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Sydney with an airline and back to Chicago O'Hare Airport 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 Sydney?

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

KAYAK’s top tips for finding a cheap flight from Chicago O'Hare Intl Airport to Sydney

  • #¡REF!
  • Flights from Chicago O'Hare Airport (ORD) to Sydney (SYD) usually entail one or two stops in various cities depending on the airline you choose. Some common layovers for this route include Auckland (AKL), Christchurch (CHC), Los Angeles (LAX), Houston (IAH), San Francisco (SFO), and Dallas (DFW).
  • Air India provides special assistance to passengers with reduced mobility on flights from Chicago O'Hare Airport (ORD) to Sydney (SYD). The airline specifically offers boarding and deplaning assistance, and assistance in moving around the airport.
  • ANA provides baby bassinets for infants up to 8 months on flights from Chicago O'Hare Airport (ORD) to Sydney (SYD). The airline also offers special children's meals, which are designed to suit the dietary requirements and tastes of young children, including vegetarian options, gluten-free options, and more.
  • There are several transportation options to get from Sydney Airport (SYD) to the city center. One option is the Airport Link train. The train station is located beneath the airport's Terminal 1, and the journey takes around 15 minutes to reach the city center. Train tickets can be purchased at the airport's train station or online.

Reviews of the top airline flying from O'Hare Intl to Sydney

 
See real verified KAYAK customer reviews for airlines flying from Chicago to Sydney. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from O'Hare Intl to Sydney? 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 1046 reviews
7.5Comfort
7.7Boarding
7.2Entertainment
8.2Crew
7.0Food
Airline reviews

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

10.0 ExcellentAnonymous, June 2026
DFW - MEL
Read more Qantas Airways reviews

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

I never flew with alliance. Kayak is a joke and none of the flights or times were correct. Won’t ever use kayak again

I missed my flight due to unforeseen circumstances It was, however , an excellent price !

We had a medical emergency, needing to get to an emergency room upon landing at LAX. I let the back flight attendants know the situation. One, David, contacted the pilot, who made arrangements for EMT's to be there when we got off the plane. They went above and beyond for us. We didn't have to go through customs, as a customs person came to us and checked us right at the exit of the jet way. Another wonderful woman, a United employee at LAX, perhaps a customer service liaison, took care of our luggage situation, as we weren't going to make our connection to Bozeman. When we came back to LAX to see when we could get a flight to Bozeman, the personnel are very accommodating and booked us on the next flight out, and assigned good seats. It was a horrible flight, physically, from Sydney to LAX, , but the professionalism of all involved was excellent! We are very grateful fir the way they all stepped in and helped during a very unpleasant medical situation. Thank you!!

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.

Very good overall. However, your choices of free movies was limited and there was no music Channel???

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

This was the worst flight I’ve been on. Getting on the plane where is was 30 degrees outside was hotter on board cabin must’ve been 33 degrees. This is a health hazard. They cannot be doing this to save on fuel. People could die from this!!. Fans and a/c was, off entertainment was off. Poor excuse given. Crew made the excuse that the system didn’t have enough power. They basically were operating on one engine to save on jet fuel till 3 hours later on cruising altitude and they then started the second engine. And finally the cabin was cooled. On a 7hour red eye flight this made it so uncomfortable and impossible to sleep.

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.

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

Information on your arrival and departure airports