SYD - ORD

$582 Find Cheap Flights from Sydney to Chicago O'Hare Airport

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 4/18. 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 Chicago O'Hare Intl 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
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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$965
Typical prices: $689-$1,120
Air New Zealand
Tue 5/12Fri 5/15
SYD - ORD • 2 stops
Cheapest one-way
$582
Typical prices: $477-$1,077
Air New Zealand
Sat 4/18
SYD - ORD • 2 stops
Top airlines
Delta
Cheapest • from $978 (round-trip)
Qantas Airways
Best reviews • 7.5 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
2 weeks
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 24% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
February
Cheapest • 25% price drop
June
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to O'Hare Intl!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights 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 for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Sydney to O'Hare Intl

Tue, May 12 - Fri, May 15
Air New Zealand Logo
9:55 am - 9:33 pm
SYD
-
ORD
26h 38m2 stops
Air New Zealand Logo
4:00 pm - 8:45 am
ORD
-
SYD
25h 45m2 stops
$965Air New Zealand
Wed, Feb 4 - Wed, Feb 25
Delta Logo
10:40 am - 4:57 pm
SYD
-
ORD
23h 17m2 stops
Delta Logo
7:15 am - 8:30 am
ORD
-
SYD
32h 15m2 stops
$978Delta
Mon, Feb 2 - Mon, Feb 9
Air New Zealand Logo
11:45 am - 6:52 pm
SYD
-
ORD
24h 07m2 stops
Air New Zealand Logo
2:40 pm - 8:45 am
ORD
-
SYD
25h 05m2 stops
$1,006Air New Zealand
Mon, Jan 26 - Tue, Feb 10
Air New Zealand Logo
11:45 am - 8:05 pm
SYD
-
ORD
25h 20m2 stops
Air New Zealand Logo
2:40 pm - 10:30 am
ORD
-
SYD
26h 50m2 stops
$1,011Air New Zealand
Sun, Jan 25 - Mon, Feb 9
Delta Logo
10:40 am - 9:43 pm
SYD
-
ORD
28h 03m2 stops
Delta Logo
1:50 pm - 8:30 am
ORD
-
SYD
25h 40m2 stops
$1,012Delta
Thu, Jan 29 - Sun, Feb 15
Air New Zealand Logo
11:45 am - 8:05 pm
SYD
-
ORD
25h 20m2 stops
Air New Zealand Logo
2:33 pm - 8:45 am
ORD
-
SYD
25h 12m2 stops
$1,017Air New Zealand
Thu, Feb 19 - Thu, Feb 26
Air Canada Logo
11:20 am - 5:05 pm
SYD
-
ORD
22h 45m2 stops
Air Canada Logo
7:15 am - 9:35 am
ORD
-
SYD
33h 20m2 stops
$1,019Air Canada
Mon, Jan 26 - Mon, Feb 2
Air Canada Logo
11:20 am - 2:41 pm
SYD
-
ORD
20h 21m1 stop
Air Canada Logo
3:35 pm - 9:35 am
ORD
-
SYD
25h 00m1 stop
$1,023Air Canada
Thu, Feb 19 - Thu, Feb 26
Air Canada Logo
11:20 am - 5:05 pm
SYD
-
ORD
22h 45m2 stops
Air Canada Logo
7:15 am - 9:35 am
ORD
-
SYD
33h 20m3 stops
$1,027Air Canada
Tue, Jan 27 - Wed, Feb 11
Air Canada Logo
11:20 am - 4:42 pm
SYD
-
ORD
22h 22m1 stop
Air Canada Logo
1:05 pm - 9:35 am
ORD
-
SYD
27h 30m1 stop
$1,028Air Canada
Booking Insights

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

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.

How much is a round-trip flight from Sydney to Chicago O'Hare Intl Airport?

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

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 round-trip 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 February, where tickets cost $715 (return) on average. On the other hand, the most expensive months are December and January, where the average cost of round-trip tickets is $1,368 and $1,143 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip 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 week.

To get a below average price on the flight from Sydney to Chicago O'Hare Intl Airport, you should book around 2 weeks before departure, which saves you about 24% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 18 weeks before departure.

Find deals

Good to know

Low seasonNovember
Cheapest flight$582
Best time to beat the crowds but there is an average 9% increase in price.
Most popular time to fly with an average 10% 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 $582 for a one-way ticket and $965 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 is the only airline alliance operating flights between Sydney and Chicago O'Hare Airport.

  • 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.

Reviews of the top airline flying 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.
7.5
Qantas AirwaysOverall score based on 967 reviews
7.7Boarding
7.0Food
7.5Comfort
8.1Crew
7.2Entertainment
Airline reviews

The crew were wonderful - if only the customers were as well behaved as the attendants!! Ha ha! If you could just talk to God and ask for less turbulence next time.... Juuuuust kidding....

10.0 ExcellentAnonymous, Jan 2026
SYD - SIN
Read more Qantas Airways reviews

The crew were wonderful - if only the customers were as well behaved as the attendants!! Ha ha! If you could just talk to God and ask for less turbulence next time.... Juuuuust kidding....

Basic airline, aircraft and service. AA gets you from point A to B. My flight was delayed by 2 hours too.

No internet on flight, which makes log travels really hard.

My flight from Dallas to Sydney was cancelled. My entire trip was rerouted to include the following: Hartford to Washington DC Washington DC to JFK JFK to Auckland Auckland to Christchurch I paid for an aisle seat on the flight to Auckland and was asked if I would take a window seat to accommodate a family. The agent at the podium failed to mention that the family had a 3 month old baby and that a bassinet would be used during the 16 hour flight. The only way I could get out of my seat was to crawl under the bassinet of the sleeping baby. I think it is wrong that I was no given the choice to sit in another seat, that the agent knew what she was doing and chose to not properly disclose my seating arrangement. Terrible treatment.

they ran out of fruit for breakfast and so I just had a yogurt instead. other than that the flight was good

by the time they got to our row, they were out of some of the food options. games and movies were great but maybe more game options like tetris or pac man would be great

Great as usual, some delays but well communicated and made up for in the air

Poor! This flight was delayed 14 hours. There was no assistance in helping customers find other routes to their destination, nor any other kind of support. It was a chaotic experience. I'm not likely to fly with AA going forward.

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.

We were upgraded and after just a short delay in attending to a safety check we were on our way. Would definately fly Qantas International on their Dreamliner again.

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

Information on your arrival and departure airports

Sydney (SYD)
O'Hare Intl (ORD)