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SYD - ORD

Find cheap flights from Sydney to Chicago O'Hare Airport from $686

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Sydney to O'Hare Intl departing on 7/30. 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
0 bags
sex 6/7
sex 6/14

Search hundreds of travel sites at once for deals on flights to Chicago O'Hare Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sydney to Chicago, 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 Sydney to Chicago, as well as popular online travel agencies
In the last 7 days travelers have searched 43,968,530 times on KAYAK, and here is why:

Save 21% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

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

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Sydney to O'Hare Intl 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 and deals for you by selecting your travel dates.
Choose your dates
9:30 pm - 7:40 pmSYD-ORD
38h 10m1 stop
4:56 pm - 9:00 amORD-SYD
23h 04m1 stop
$933American Airlines
Find Deal
qui, out 31 - dom, nov 3
3:50 pm - 9:00 pmSYD-ORD
20h 10m1 stop
8:20 am - 7:05 amORD-SYD
31h 45m1 stop
$939American Airlines
Find Deal
qua, ago 14 - qua, set 4
9:30 am - 5:35 amSYD-ORD
35h 05m2 stops
12:50 pm - 7:00 amORD-SYD
27h 10m1 stop
$995United Airlines
Find Deal
qua, mai 29 - dom, jun 30
9:20 am - 2:29 pmSYD-ORD
20h 09m1 stop
6:00 am - 7:20 amORD-SYD
34h 20m2 stops
$1,018Air Canada
Find Deal
seg, jun 3 - seg, jun 17
10:20 am - 2:26 pmSYD-ORD
20h 06m1 stop
8:35 am - 8:20 amORD-SYD
31h 45m2 stops
$1,020Air Canada
Find Deal
seg, out 14 - ter, out 22
10:20 am - 5:35 amSYD-ORD
34h 15m2 stops
8:45 am - 7:00 amORD-SYD
31h 15m1 stop
$1,047United Airlines
Find Deal
ter, jun 18 - qui, jun 27
9:45 pm - 8:20 amSYD-ORD
26h 35m1 stop
7:15 am - 10:30 amORD-SYD
34h 15m2 stops
$1,110ANA
Find Deal
qui, out 31 - dom, nov 3
9:45 pm - 8:20 amSYD-ORD
26h 35m1 stop
7:15 am - 10:30 amORD-SYD
34h 15m2 stops
$1,114ANA
Find Deal
qui, out 31 - dom, nov 3
9:25 am - 6:25 pmSYD-ORD
24h 00m2 stops
3:57 pm - 6:35 amORD-SYD
23h 38m2 stops
$1,150Delta
Find Deal
seg, jun 24 - qua, jul 24
9:25 am - 4:57 pmSYD-ORD
22h 32m2 stops
10:20 am - 6:35 amORD-SYD
29h 15m2 stops
$1,153Delta
Find Deal
ter, jun 18 - ter, jul 23

Flights from Sydney to O'Hare Intl - Travel Insights & Trends

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

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

The average price of all flights from Sydney to Chicago O'Hare Intl Airport clicked on KAYAK for each day over the last 12 months.
When flying from Sydney to Chicago O'Hare Airport, you should consider leaving on a Thursday and avoid Sundays if you are looking for the best rates. For your return to Sydney, you’ll find the best rates on Tuesdays and the most expensive ones on Mondays.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Sydney to Chicago O'Hare Intl Airport, 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 Sydney to Chicago O'Hare Intl Airport is March, where tickets cost $1,112 on average. On the other hand, the most expensive months are December and June, where the average cost of tickets is $1,767 and $1,585 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Sydney to Chicago O'Hare Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Sydney to Chicago O'Hare Intl Airport, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 55 days before departure.

Which airlines provide the cheapest flights from Sydney to Chicago O'Hare Airport?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 72 hours, the best return deals on flights connecting Sydney to Chicago O'Hare Airport were found on American Airlines ($933) and United Airlines ($995). American Airlines proposed the cheapest one-way flight at $686.

Good to know

Low season

January

High season

July

Cheapest flight

$686
Best time to beat the crowds with an average 1% drop in price.
Most popular time to fly with an average 13% increase in price.
Flight from Sydney to Chicago O'Hare Airport

When to book flights from Sydney to O'Hare Intl

Are your dates flexible? Find out the best times to travel from Sydney to O'Hare Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips 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 Sydney to Chicago O'Hare Airport flights

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

    In the last 3 days, the lowest price for a flight from Sydney to Chicago O'Hare Intl Airport was $686 for a one-way ticket and $933 for a round-trip.

  • Do I need a passport to fly between Sydney and Chicago O'Hare Airport?

    Yes

  • Which airports will I be using when flying from Sydney to Chicago O'Hare Airport?

    When flying out of Sydney you will be using Sydney Kingsford Smith. You will be landing at Chicago O'Hare Airport, also known as Chicago O'Hare Intl.

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

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

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

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between Sydney and Chicago O'Hare Airport, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from Sydney to Chicago, ANA or United Airlines?

    The two airlines most popular with KAYAK users for flights from Sydney to Chicago are ANA and United Airlines. With an average price for the route of $1,267 and an overall rating of 8.4, ANA is the most popular choice. United Airlines is also a great choice for the route, with an average price of $1,770 and an overall rating of 7.4.

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

    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 Sydney to Chicago O'Hare Airport.

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

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

    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 to Chicago O'Hare Airport with an airline and back to Sydney with another airline. Booking your flights between Sydney and ORD can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Sydney to Chicago O'Hare Airport?

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

See more FAQs

Top 4 airlines serving from Sydney to O'Hare Intl

 
See real verified KAYAK customer reviews for airlines flying from Sydney to Chicago. 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 Sydney to O'Hare Intl? 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.
8.4
ANAOverall score based on 928 reviews
8.0Entertainment
8.8Crew
8.3Comfort
7.8Food
8.6Boarding
Airline reviews

I booked a ANA flight, this was just a regular United flight — as always very bad, dirty, rude service, quite frankly really embarrassing to be flying with this after spending time in Japan.

2.0 MediocreAnonymous, May 2024NRT - EWR
Read more about ANA reviews

I booked a ANA flight, this was just a regular United flight — as always very bad, dirty, rude service, quite frankly really embarrassing to be flying with this after spending time in Japan.

Staff and crew are wonderful, professional and courteous. Meal is delicious and snacks can be improved. Entertainment needs improvement, pls update selections of movies. I appreciate that our flight was on time

I flew economy class so of course it’s not as roomy as business and first class. But overall it was ok and the seat had an interesting way to recline — the seat itself extended forward instead of the backrest. This way the person sitting behind me would not lose space by my reclining—excellent concept. I wish all airlines used these seats.

The space for the seats i like it. Its not too close like other air line. The food is ok and also the staff. I'm waiting for my flight rewards point because until now i didn't recieved it.

Flying with ANA is always a breeze. Seats are very comfortable.

The staff, ground and air, at ANA was very helpful and friendly during check in, boarding and during the flight. This is the reason why I always fly ANA whenever I go to Manila. The food was not the best but the flight crew more than makes up for the shortfall.

For the price of a seat that is obviously crammed together so as to get many more people onboard and combined with the long flight duration, Free WiFi should be an automatic “Thank You for Flying with Us!” To charge an additional fee when so many other businesses offers it is a bit “cheap” on the airline’s part.

This is a very long flight and the first time I have flown on a Japanese airline. I was very impressed with the staff. They worked hard and offered food and drink regularly. Plane was very well cared for. The let room was good . Food was ok but better than other airlines.

It was very nice. I was a bit disappointed by the few meal services. There were probably more drink services that I missed while sleeping, but I would have liked the crew to bring more than one drink service before landing and to bring more than one drink service and coffee service after take off

Food was high quality. Crew was extremely professional, polite, attentive. Flights were on time. Plane had good media tech.

It was good! Appreciated that it was very on schedule so it made the connecting flight less stressful

I was told we'd have a hot breakfast option in first class, so I chose not get a hot breakfast. It was a very strange meal, but the fresh fruit was very good quality. Service was excellent from ORD to ELP. No service from MBS to ORD, not even water. However, when flying American from FNT to ORD, which is a shorter flight, they at least pass out snacks and offer water.

We were delayed an hour leaving Munich (No fault of the crew). They kept us posted on the status so we knew what was going on, but as a result we missed our connection in Chicago and the communication on connecting flights was pretty poor as we disembarked. It was already stressful and some of that could have been reduced by better communications about where to find transfers, etc.

One problem, but a serious one - the plane is built with electric windows that tint dark to reduce light. Sitting next to the window is VERY UNCOMFORTABLE as it emits so much HEAT in the face when tinted.

The delays (5 hrs) were a comedy of errors, and the multiple safety issues encountered were very concerning.

Wifi wasn't working on one of the UA flights after boarding.

The flight was delayed instead of leaving at 11 it left at 12.20

United WiFi is consistently unusable (it can take 10 mins to load a single web page). If you need Wifi to do work, be prepared to lose half a day of productivity.

Crew was not very helpful. They forgot to serve me coffee and had to wait for a long time.It looked as if they were not very happy with what they were doing.

Good movies, iffy pay WiFi, food ok- on time though and that was great!

Left on time. Arrived early. Turbulence coming in and gate not open due to early arrival but expected.

The CX617 from HK to BKK was delayed more than 1.5 hours.

The plane was old and in new of a cleaning up and renovating on the interior. Seats and carpets were very worn and dirty looking. Cushioning on the seats was broken down and not as comfortable as newer jet seats. Food was a little below average but okay. Staff were friendly and hard working but did not pick up debris or food they spilled when collecting from the customers. But they were very helpful and professional.

This flight is frequently delayed. The connections seemingly are more frequently delayed. I’ve missed connections as a result twice on the same route to charlotte then Charleston. Final destination arrival has been the next day, twice in a row. No pilots, no crew. Too many excuses. Unfortunately, my days with American are over.

Entertainment was okay not because anything was wrong but it is a short flight so having no wifi is annoying but understandable. Crew was outstanding as usual

Those seats were way too narrow. I had the middle seat, one person was a very skinny person and we still couldn’t avoid touching each other anytime one of us moved. The other person was larger and we were basically sitting in each others lap the entire flight. There was zero entertainment. The flight was long enough to justify tvs, but no. Gotta sit there in your infant seat and twiddle your thumbs.

Flight was fine. It took an unusually long time to have baggage delivered to the carousel in ORD.

Average - flew with Jet Blue internal and it was far more comfortable and better food and entertainment. Notable difference

The flight got canceled due to mechanical issues, and he to be rebooked and missed my appointments for that day

The flight was scheduled to depart DCA at 12:30 pm but was delayed twice on the ground so that we were finally scheduled to depart at around 4:00 pm. Once we boarded, it was announced that takeoff would be delayed again to fix a hydraulic problem which delayed our eventual takeoff until around 5:00 pm. Once we departed, it was a smooth flight back to ORD. We did not get any explanation about what caused the original significant delay. In my experience, this happens frequently with AA.

My experience was pretty frustrating because the first leg of my flight on United (though booked through Air Canada) was delayed causing me to miss my connecting flight on Air Canada. This could have been an easy solve as there was a direct flight later that morning via Air Canada that they easily could have put me on which would have only gotten me to my destination 2 1/2 hours later but because United and Air Canada don’t seem to have good communication they gave me the run around both telling me to talk with the other which I did three times to no avail. I ended up taking the delayed flight and getting on a new connecting flight which ended up getting me to my destination 6 hours later and I missed the event I was planning to go to this evening.

I liked the early check in. Flight was a bit bumpy due yo weather. Overall, everything went well.

Limited snack options cause the snack vendor was on strike

The experience was generally above average. The only downside was the absence of WiFi during my flight from Vancouver to San Francisco.

I was appalled to have to pay for just a regular seat when I went to book 24 hrs before my flight! Because it was only an hour flight I didn’t choose a seat from Grand Junction to Denver, but I did for Toronto and had to pay just to choose a regular available seat! In my 60+ years of flying this was the first time I have heard of this. Also, allowing people to bring on “huge “ suitcases, not carry on size, but much bigger, and then a large pack pack stuffed. So they take up all the room in the overhead bins and if we are later boarding, there is no room so we have to check our small carry on. I have already paid for and checked in one bag! I certainly will not choose to fly with United again unless it is the “only” airline available!

on demand entertainment in seat back awesome Check in Kiosk too demanding with endless demand for more information information then says go to counter. Counter agent unfriendly. Do it yourself check in luggage procedure not intuitive, upset employees frustrated the whole procedure.

It was an excellent experience, traveling from Toronto to Denver with United.

Ontime boarding. Almost 1 hour take off delay. We could have boarded slightly later since the pilots were in traffic

Flight was delayed, I had to put my luggage all the way in the back! They served only a beverage no snack on the way in Air Canada, definitely not a good first impression.

Fresh fuit or veg snacks would be so great, but there are two good restaurants in Denver airport. Try Etais UDIS or Freshens DIA for nutritious delicious pita sandwiches/ donairs and crepes in Freshens.

Book cheap flights from Sydney to Chicago

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Sydney to Chicago found on KAYAK in the last 72 hours.
7/30ter
1 stopAmerican Airlines
27h 38mSYD-ORD
$686
7/30ter
2 stopsAmerican Airlines
23h 09mSYD-ORD
$689
7/5sex
2 stops
27h 55mSYD-ORD
$696
5/14ter
3 stops
53h 32mSYD-ORD
$717
5/14ter
2 stops
29h 32mSYD-ORD
$762
5/13seg
1 stopCathay Pacific
31h 35mSYD-ORD
$841
7/5sex
1 stopCathay Pacific
31h 35mSYD-ORD
$842
5/31sex
3 stopsAir Canada
37h 38mSYD-ORD
$1,573
7/5sex
3 stopsAir Canada
37h 38mSYD-ORD
$2,020
7/30ter
1 stopANA
26h 45mSYD-ORD
$3,874

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Last minute flights from Sydney to O'Hare Intl

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Sydney to Chicago that are departing in the next 10 days.
5/9qui
multi-stopBritish Airways
35h 45mSYD-ORD
5/22qua
multi-stopBritish Airways
34h 15mORD-SYD
$937
5/9qui
multi-stopAmerican Airlines
29h 47mSYD-ORD
5/22qua
multi-stopAmerican Airlines
24h 49mORD-SYD
$946
5/13seg
multi-stopUnited Airlines
34h 00mSYD-ORD
5/19dom
multi-stopUnited Airlines
30h 28mORD-SYD
$997
5/9qui
multi-stopAmerican Airlines
29h 47mSYD-ORD
7/4qui
multi-stopAmerican Airlines
25h 20mORD-SYD
$1,006
5/9qui
multi-stopAmerican Airlines
29h 47mSYD-ORD
7/4qui
multi-stopAmerican Airlines
26h 33mORD-SYD
$1,010
5/9qui
multi-stopAmerican Airlines
23h 11mSYD-ORD
5/22qua
multi-stopAmerican Airlines
24h 49mORD-SYD
$1,030
5/10sex
multi-stopAir Canada
42h 40mSYD-ORD
6/13qui
multi-stopAir Canada
34h 20mORD-SYD
$1,041
5/10sex
multi-stopUnited Airlines
34h 00mSYD-ORD
6/13qui
multi-stopUnited Airlines
26h 45mORD-SYD
$1,097
5/10sex
multi-stopAir Canada
26h 24mSYD-ORD
6/13qui
multi-stopAir Canada
31h 35mORD-SYD
$1,247
5/13seg
multi-stop
35h 10mSYD-ORD
5/19dom
multi-stop
29h 48mORD-SYD
$1,854

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Sydney - Chicago O'Hare Airport Flights

Departure:

Sydney (undefined)Australia

Destination:

Chicago O'Hare Airport (ORD)United States

Return flight deals:

Chicago O'Hare Airport - Sydney

Cabin classes: