SYD - CHI

$622 Find Cheap Flights from Sydney to Chicago

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 Chicago departing on 2/10. 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

 
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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Everything you should know

Cheapest round-trip
$1,069
Overall average: $1,143
Air New Zealand
Wed 1/28Wed 2/4
SYD - ORD • 2 stops
Cheapest one-way
$622
Typical prices: $458-$469
Multiple Airlines
Tue 2/10
SYD - ORD • 3 stops
Top airlines
Air New Zealand
Cheapest • from $1,142 (round-trip)
Qantas Airways
Best reviews • 7.5 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
4 weeks
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 25% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
March
Cheapest • 25% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Chicago!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Sydney to Chicago (SYD-CHI)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Sydney to Chicago 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 Chicago

Wed, Jan 28 - Wed, Feb 4
Air New Zealand Logo
1:55 pm - 11:14 pm
SYD
-
ORD
26h 19m2 stops
Air New Zealand Logo
3:53 pm - 3:55 pm
ORD
-
SYD
31h 02m2 stops
$1,069Air New Zealand
Thu, Feb 19 - Fri, Mar 6
Qantas Airways Logo
11:20 am - 2:04 pm
SYD
-
ORD
19h 44m1 stop
Qantas Airways Logo
8:55 pm - 9:00 am
ORD
-
SYD
43h 05m1 stop
$1,134Qantas Airways
Fri, Jan 30 - Fri, Feb 6
Air New Zealand Logo
9:55 am - 7:50 pm
SYD
-
ORD
26h 55m2 stops
Air New Zealand Logo
3:53 pm - 8:45 am
ORD
-
SYD
23h 52m2 stops
$1,139Air New Zealand
Tue, Mar 3 - Tue, Apr 14
American Airlines Logo
11:20 am - 5:36 pm
SYD
-
ORD
23h 16m1 stop
American Airlines Logo
5:30 pm - 7:05 am
ORD
-
SYD
22h 35m1 stop
$1,142American Airlines
Tue, Mar 3 - Tue, Apr 14
American Airlines Logo
11:20 am - 4:38 pm
SYD
-
ORD
22h 18m1 stop
American Airlines Logo
5:02 pm - 7:05 am
ORD
-
SYD
23h 03m2 stops
$1,147American Airlines
Tue, Mar 3 - Tue, Apr 14
American Airlines Logo
2:05 pm - 6:46 pm
SYD
-
ORD
21h 41m2 stops
American Airlines Logo
5:02 pm - 7:05 am
ORD
-
SYD
23h 03m2 stops
$1,154American Airlines
Sat, May 16 - Sat, Jun 6
Multiple Airlines Logo
11:55 am - 11:28 pm
SYD
-
ORD
26h 33m2 stops
Multiple Airlines Logo
4:40 pm - 8:45 am
ORD
-
SYD
25h 05m2 stops
$1,175Multiple Airlines
Thu, Feb 19 - Fri, Mar 6
United Airlines Logo
12:10 pm - 2:45 pm
SYD
-
ORD
19h 35m1 stop
United Airlines Logo
2:26 pm - 9:05 am
ORD
-
SYD
25h 39m2 stops
$1,201United Airlines
Thu, Jun 11 - Thu, Aug 6
ANA Logo
11:50 am - 5:05 am
SYD
-
ORD
32h 15m2 stops
ANA Logo
5:45 pm - 9:25 am
ORD
-
SYD
24h 40m1 stop
$1,216ANA
Fri, May 29 - Fri, Jun 5
Multiple Airlines Logo
7:55 am - 12:30 pm
SYD
-
MDW
43h 35m2 stops
Multiple Airlines Logo
9:20 am - 6:20 am
MDW
-
SYD
30h 00m2 stops
$11,219Multiple Airlines
Booking Insights

KAYAK's insights & trends for Sydney to Chicago flights

Get data-powered insights and trends into flights from Sydney to Chicago 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?

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 departing in January.

What’s the cheapest day of the week to fly from Sydney to Chicago?

The average price of all round-trip flights from Sydney to Chicago clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Chicago on a Monday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from Sydney to Chicago. For your return ticket, we recommend flying on a Saturday and avoiding Thursdays for the best deals.

What is the cheapest month to fly from Sydney to Chicago?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Sydney to Chicago, 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 is March, where tickets cost $732 (return) on average. On the other hand, the most expensive months are December and November, where the average cost of round-trip tickets is $1,463 and $1,155 respectively.

How far in advance should I book a flight from Sydney to Chicago?

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, 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, you should book around 4 weeks before departure, which saves you about 25% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 14 weeks before departure.

Good to know

Low seasonNovember
Cheapest flight$622
Best time to beat the crowds but there is an average 18% increase in price.
Most popular time to fly and prices are also 12% lower on average.
Flight from Sydney to Chicago O'Hare Airport

When to book flights from Sydney to Chicago

Are your dates flexible? Find out the best times to travel from Sydney to Chicago 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 flights from Sydney to Chicago

  • What is the cheapest flight from Sydney to Chicago?

    In the last 3 days, the lowest price for a flight from Sydney to Chicago was $622 for a one-way ticket and $1,069 for a round-trip.

  • Do I need a passport to fly between Sydney and Chicago?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Sydney and on arrival in Chicago.

  • Which aircraft models fly most regularly from Sydney to Chicago?

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

  • Which airline alliances offer flights from Sydney to Chicago?

    oneworld is the only airline alliance operating flights between Sydney and Chicago.

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

    The two airlines most popular with KAYAK users for flights from Sydney to Chicago are Qantas Airways and United Airlines. With an average price for the route of $762 and an overall rating of 7.5, Qantas Airways is the most popular choice. United Airlines is also a great choice for the route, with an average price of $1,591 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Sydney to Chicago?

    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.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Chicago 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?

    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 with an airline and back to Sydney with another airline.

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

    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 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 airlines flying from Sydney to Chicago

 
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 Chicago? 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 946 reviews
7.7Boarding
7.2Entertainment
8.1Crew
7.0Food
7.5Comfort
Airline reviews

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

6.0 GoodSandipan, Oct 2025
SYD - DFW
Read more Qantas Airways reviews

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.

I tried to check in online but was unable to do so. I stood in line for nearly two hours to check in. American Airlines was understaffed. When I finally got to the kiosk to check in, I was still unable to check in. No AA staff was available to help. Finally one of the airport security agents who was helping passengers became of lack of AA Staff told me: “I think the reason you can’t check in is that you are starting your name with an upper case letter when you write it. Just write it with all lower case letters.” That did allow me to check in. HOW COULD ANYONE POSSIBLY KNOW THAT IF THEY USE AN INITIAL UPPER CASE LETTER TO SPELL THEIR OWN NAME, AA WOULD NOT ALLOW THEM TO CHECK IN?????? Then I had to wait in line over half an hour again to drop off my baggage. Although I arrived at the airport 3 hours early, by the time I got to the gate, they had already started boarding.

The flight was on time. I generally don’t drink or eat on short flights and the seats were good and the flight attendants were friendly. That’s all I expect

It was nice to have gotten up upgraded to first class with a meal on a three hour flight

Very bad! They kept delaying my flight and wouldn’t do anything about it

Door to door, the crew and staff were amazing. It was a stressful travel day with delays, but they were focused on customers and doing what they could to get us to our destinations.

United has come a long way, it’s been a fantastic experience traveling with them.

This flight leg was fantastic - super comfortable and a great selection of things to watch on the TV. Staff were excellent, really above and beyond.

Flight was delayed only slightly before takeoff due to traffic control. However, the flight arrived early to ORD. Good flight. United has been very reliable for me.

Another delayed flight. When the delays exceed the duration of the flight, it’s a problem.

After boarding the plane in Chicago, the passengers were told that there was a technical problem with the plane. Passengers remained on the plane as they tried to fix the problem. After what was probably an hour passengers were told that there was a need to change planes as the problem was not solved. Passengers disembarked and boarded another plane. After taxing to the runway and waiting for takeoff, passengers were told that owing to the thunderstorm the flight was unable to take off but would try and reroute. After some time passengers were told there wasn't enough fuel for the new route and the plane had to return to the gate for additional fuel. after another log delay the flight got underway. On the plane there was food, drinks, ice or entertainment. We were a glass of water, which appeared rationed. Flight arrived about 5 hours late. The pilot was fantastic and communicated with the passengers throughout the ordeal.

Excellent all round, first time flying United. App is very helpful.

Everything you need to know for your flight from Sydney to Chicago

Information on your arrival and departure airports