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CHI - SYD

Find cheap flights from Chicago to Sydney from $675

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Chicago to Sydney departing on 6/5. 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
Fri 6/7
Fri 6/14

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

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Cheap flight deals from Chicago to Sydney (CHI-SYD)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Chicago 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 and deals for you by selecting your travel dates.
Choose your dates
3:30 pm - 1:25 pmORD-SYD
30h 55m2 stops
1:15 pm - 6:24 amSYD-ORD
32h 09m3 stops
$1,265
Find Deal
Thu, Jun 6 - Thu, Jun 13
3:30 pm - 1:25 pmORD-SYD
30h 55m2 stops
1:15 pm - 5:49 amSYD-ORD
31h 34m2 stops
$1,274
Find Deal
Thu, Jun 6 - Thu, Jun 13
2:10 pm - 8:45 amORD-SYD
27h 35m2 stops
9:55 am - 8:50 pmSYD-ORD
25h 55m2 stops
$1,288Air New Zealand
Find Deal
Mon, Aug 5 - Mon, Aug 19
4:15 pm - 8:45 amORD-SYD
25h 30m2 stops
8:45 am - 5:58 amSYD-ORD
36h 13m2 stops
$1,312Air New Zealand
Find Deal
Thu, Aug 1 - Tue, Aug 13
2:45 pm - 7:05 amORD-SYD
25h 20m1 stop
9:15 am - 3:36 pmSYD-ORD
21h 21m1 stop
$1,393American Airlines
Find Deal
Sun, Aug 4 - Tue, Aug 13
5:03 pm - 7:05 amORD-SYD
23h 02m1 stop
9:15 am - 3:36 pmSYD-ORD
21h 21m1 stop
$1,398Qantas Airways
Find Deal
Thu, Aug 1 - Fri, Aug 30
5:06 pm - 7:05 amORD-SYD
22h 59m1 stop
9:30 pm - 6:14 amSYD-ORD
23h 44m1 stop
$1,418Qantas Airways
Find Deal
Tue, Aug 6 - Tue, Aug 20
12:00 pm - 7:05 amORD-SYD
28h 05m1 stop
9:15 am - 3:36 pmSYD-ORD
21h 21m1 stop
$1,443American Airlines
Find Deal
Fri, Aug 2 - Tue, Aug 13
3:40 pm - 7:20 amORD-SYD
24h 40m1 stop
9:20 am - 2:21 pmSYD-ORD
20h 01m1 stop
$1,499Air Canada
Find Deal
Sun, Aug 4 - Wed, Aug 21
7:21 am - 7:20 amORD-SYD
32h 59m3 stops
9:20 am - 8:11 pmSYD-ORD
25h 51m2 stops
$1,504Air Canada
Find Deal
Mon, Aug 5 - Mon, Aug 12

Flights from Chicago to Sydney - Travel Insights & Trends

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

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Chicago 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 to Sydney is February, where tickets cost $1,195 on average. On the other hand, the most expensive months are December and July, where the average cost of tickets is $2,143 and $1,780 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Chicago to Sydney, 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 Chicago to Sydney, you should book around 2 days before departure. For the absolute cheapest price, our data suggests you should book 28 days before departure.

Which airlines provide the cheapest flights from Chicago to Sydney?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The best deals for a one-way ticket found by KAYAK users over the last 3 days were on Air Canada ($1,059) and Delta ($1,136). The cheapest round-trip tickets were found on Air New Zealand ($1,288) and American Airlines ($1,393).

Good to know

Low season

October

High season

December

Cheapest flight

$675
Best time to beat the crowds with an average 13% drop in price.
Most popular time to fly with an average 39% increase in price.
Flight from Chicago O'Hare Airport to Sydney

When to book flights from Chicago to Sydney

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

  • Can I fly directly from Chicago to Sydney?

    Unfortunately, there aren’t any airlines with a direct connection from Chicago to Sydney. Your trips will involve at least one layover, with certain airlines even having two layovers scheduled for this trip. The location of the layover will depend on the airline you’re flying with. For instance, Air New Zealand has its layovers scheduled for Auckland while Air India has Delhi. Both American Airlines and United have Los Angeles as the set layover destination for this route.

  • Is public transport available from Sydney Airport (SYD) to downtown Sydney?

    Yes, there is a train that connects the airport to the city center. It is the cheapest option available and also the quickest, taking the best part of fifteen minutes between the airport and downtown. However, it is not as convenient as a taxi especially when you have a lot of luggage as it will drop you off at the Circular Quay in the center of Sydney then you will have to walk to your hotel.

  • What are the benefits of upgrading to first class for this trip?

    For a long flight like this one, you are sure to get maximum value for your money when you upgrade to first class. The seats are much more comfortable, making the trip more bearable, and you can stretch out freely with the extra legroom. In addition, you will be served an amazing selection of meals and drinks to enjoy at various points during the flight. Lastly, you will be able to access the first-class lounges during your layover, where you can freshen up and get some rest while waiting for the second leg of the flight.

  • Do I need a visa to fly from Chicago to Sydney?

    Yes, a visa is one of the mandatory requirements for all US citizens going to Sydney or any other Australian city. As they don’t provide any visas on arrival, you have to apply beforehand by visiting the Embassy or Consulate in advance of your travel dates to ensure that they have been processed by the time you’re flying out. You can also apply for an ETA via an online process, which is much more convenient.

  • What is the cheapest flight from Chicago to Sydney?

    In the last 3 days, the lowest price for a flight from Chicago to Sydney was $675 for a one-way ticket and $1,265 for a round-trip.

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

    Yes, you’ll need a passport to travel to Sydney from Chicago.

  • Which airports will I be using when flying from Chicago to Sydney?

    Chicago has 2 major airports: Chicago Midway and Chicago O'Hare Intl. Sydney Kingsford Smith is the only airport in Sydney. You’ll usually find the cheapest deals if you fly from Chicago O'Hare Airport.

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

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

  • Which airline alliances offer flights from Chicago to Sydney?

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

  • What is the most popular layover when flying to Sydney from Chicago?

    Los Angeles is the most popular layover city among KAYAK users traveling from Chicago to Sydney.

  • Which is the best airline for flights from Chicago to Sydney, ANA or Air New Zealand?

    The two airlines most popular with KAYAK users for flights from Chicago to Sydney are ANA and Air New Zealand. With an average price for the route of $2,089 and an overall rating of 8.4, ANA is the most popular choice. Air New Zealand is also a great choice for the route, with an average price of $1,688 and an overall rating of 8.2.

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

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

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

    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 Sydney with an airline and back to Chicago with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Chicago 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 up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding a cheap flight from Chicago to Sydney

  • Air New Zealand is a great option to book when flying with the entire family. They have free Wi-Fi available plus seatback on-demand video and free meals, all of which should make it a better experience for the kids.
  • The Blue Line train from downtown Chicago to O’Hare International Airport (ORD) is a good commuter option when you want to avoid the rush hour traffic that is usually quite a menace.
  • United Airlines doesn’t allow passengers to bring carry-on bags to the economy class cabin. However, they do allow one checked bag for free, meaning if you have any bags, you will need to check them before the flight.
  • American Airlines offers travelers the chance to calculate and offset the emissions generated during the flight from Chicago to Sydney through Cool Effect. This is a great way to make your trips more sustainable and keep the carbon footprint low.
  • Chicago Midway is an alternative departure airport to O’Hare. It is closer to downtown Chicago and also less busy, however, there are few flight options from the airport with all of them being served by Delta and including at least two layovers.
See more tips

Top 5 airlines serving from Chicago 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 Chicago 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.
8.2
Air New ZealandOverall score based on 635 reviews
8.8Crew
8.1Comfort
7.9Entertainment
8.4Boarding
7.6Food
Airline reviews

Can you please process refund. Mum died and dad went to Pakistan to bury her after cancelling flight.

2.0 MediocreAnonymous, May 2024AKL - YVR
Read more about Air New Zealand reviews

Can you please process refund. Mum died and dad went to Pakistan to bury her after cancelling flight.

Short flight so no entertainment, turbulence so no food service - overall flight as expected

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

Overall excellent but the Captain kept the seat belt sign on for far too long, especially at the beginning and end of the flight. It was 2 hours after take-off before the crew were able to start the service (on an 11 hour night flight, reducing our sleeping time) and the seat belt sign on went on during breakfast (90 mins before landing) and was not turned off again until we landed. This made for an uncomfortable journey of trying to limit fluid intake because it was unclear when the toilets would be available for use.

The staff and crew on board were excellent. Business class however, was very weird. I thought we would have individual pods, but the way it was set up was unexpected. Not very private and If you wanted to lay down, you had to have an entire bed made up for you by the crew, rather than how Delta one works where you could just lie down whenever you feel like it. It was a 16 hour flight. I chose not to have my bed made, and that turned out to be a good idea because everybody who had their bed made had to wait for the crew to roll up their mattresses. So strange!

Food was not good. We asked for Muslim food and it was weird tasteless type of boiled veges.

Crew were pleasant, happy to be there and were a joy to be around. Entire operation was professional, well thought out and ran like a Swiss clock.

Couldn’t request a vegan meal somehow but I noticed other people getting them

United flight from SFO to PDX was cancelled. I will ask for a refund. Had to book on Alaska

The recline on the seat in front of me came back so that I was staring at the top of the man’s head in front of me the whole trip. He refused to bring his seat back up twice every time he was instructed to do so and only relented when he had a tray of good in front of him. And then right back in my lap!!! Horrible man!! I complained to the staff multiple times, but no one would address the issue. Otherwise, it would have been a perfect flight.

The international flight from Sydney to Dallas had great food. I have travelled a lot over the years and this has been the most memorable in my experience so far.

flight delayed, wait in crowded gate. staff inattentive. had to remind them to get my coat from their closet. not many new movies, media choices were limited (nothing compared to Emirates.) Lounge was crowded

flight delayed, wait in crowded gate. staff inattentive. had to remind them to get my coat from their closet. not many new movies, media choices were limited (nothing compared to Emirates.)

Initial flight was cancelled so moved to an alternative flight. As a result, stuck in a middle seat. Flight then place in holding pattern prior to landing resulting in a very late trip home.

There was nothing I didn’t like, prices a little lower would help

Flight delay was informed at the last minute. Food quality is not up to Qantas standard I was unable to book an online boarding pass on any of my 6 flights.

Rescheduled after ticket purchased and issued, not 2 or 3 times and not a fourth but by 5 times, by Qantas, that's right, 5 changes! Forcing an overnight stay in Chile and need for visa. Qantas can no longer provide basic services as a national or international service provider. Professionalism is extinct and the provider needs to be mentored and educated in perfecting who to operate as an airline. Qantas is the spirit of Australian dissatisfaction.

Amazing! Was put on the earlier flight and I requested for an aisle seat and was given it. Thanks Qantas!

The crew were amazing - A great job. They made me feel special and valued.

Boarding was terrible - the ground staff member Fredeya at lax was more military than customer service, have never encountered a customer service representative as rude as her. Apart from that all other staff were wonderful and the flight was good.

Great! The plane was decently sized and comfortable. The staff was nice and there was great in flight entertainment

Last minute gate change nearly caused us to miss our flight. Change was not announced or displayed in the main board at the old gate. Terrible communication. When we landed we had to wait 20 minutes because there was another plane at the assigned gate. Not the crew’s fault, but adding 20 minutes to a 45 minute flight sucked.

Nothing beats ANA customer service on my opinion. Maybe because of their Japanese culture (and food). Arigatō

delay several times and wait extra long to board. no entertainment service because there are problem for some rows. always encounter some delays for the last flight of the day.

Flight delayed for 2 hours due to a part. The plane sat waiting for boarding for a long time and during final preflight inspection the issue was found. Why not do the preflight inspection sooner if you know the plane is being used?

The flight experience was very good! Especially the United Club!

I was not able to buy food in the flight. They refer to include your Credit card in the APP, and if you are not from USA (i have a credit card form Canada) it is not possible

Aircraft has better leg room than any of United's larger planes. We had requested mobility assistance for this and related flights. United's response to all was superb.

The flight from Ottawa to Chicago took a lot longer due to DC in Ottawa. We got to Chicago and went to our gate to catch our flight. We only had nine minutes I found that very stressful.

Got automatically assigned a middle seat, unless I fork out extra money for seat assigment.

It was spectacular. I had basic Economy and was given so much space and their seats lean back so far. Staff was superb, food was superb, everything was superb, Finnair is Fantastic.

Good flights. Departure and arrivals were on time. DFW was a little problematic in that the Skytrain without prior notice bypassed the Echo terminal so that delayed my arrival at my connecting flight.

Because I can’t stand very long in one place, I was allowed to reword.

We were delayed bc ground crew gave the flight crew the wrong paperwork. We taxiied to the runway then back to the gate to get the correct paperwork that no one bothered reviewing the first time we pushed back. Boarding was rude and stressful like it always is. Gate agents and flight attendants are all over 55 years of age, embittered by years of underpayment From AA leading to their passive agressive bitchiness for no reason.

Boarding time was easy & quick. Crew was excellent. In-flight entertainment was great/easy. Seats are too small and not enough room between rows: felt like a sardine/very cramped.

5 hour flight - full flight - not enough room to use my computer - slightly delayed - Admirals club was excellent quality food, drink made up for flight seating. No food offerred on flight, you ahd to prebook.

Excellent- plan was barely populated. I cannot remember a flight where I was able/encouraged to stretch out!

The food at Admirals Club was really great Pijamas were a nice feature The flight attendant was very nice and great attitude The aa.com does not work well specially internet service Overall a very good flight .

Great flight. Boarding was efficient and quick. On time departure and smooth flight. Flight arrived early at destination. Good experience.

Had technical issue which delayed the flight period. Flight crew knew there was 5 passengers that the connecting flight was within 15 minutes once at the gate. Rather than identify the 5 passengers to assure they got first. The flight attended mentioned it but didn't assist to assure passengers with connecting flights off first. This caused a hardship and our party of 3 missed the connecting flight.

My second flight ended up being through United and it was fine. Again, just frustrating that it was so late.

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.

Everything went smoothly and as expected. We were on time and one flight arrived early.

First time flying Air Canada and the trip was very pleasant! They did a great job getting us out of Toronto and into Rome (early!) For an international flight it was very enjoyable.

This is not a Business Class equipped airplane and even the crew apologize before take over BUT BUT Air Canada charged full business class fare

All was good, except our baggage was lost for most of a day. We are thankful that it was found quickly and delivered to our hotel. Rouge was fine outside of that problem.

You do not have a space for flight cancelled. BUT!!! Air Canada handled it great. Was booked on another airline for the next day. The original flight was booked solid. But he precheck by the maintenance found a mechanical problem and the plane was not safe to fly. It was an inconvenience to have to wait until next day but I would rather arrive safely.

Very good other than we have to wait for one crew and we’re delayed and the pilot and his co- pilot has to make a difference to be right on time arrival. Disappointed about no food service also.

I had written all my complaints on my trip from Grand Junction to Denver so I will repeat it here! I was absolutely appalled that I had to pay for a regular seat that I choose 24 hrs before boarding! Also I checked my large bag which I had to pay for as well, and by the time I boarded all the room in the bins were gone so also had to check that one. I noticed people pulling out oversized suitcases, bigger than the measurements stated for carry on, and also large pack packs stuffed full! So these people were taking up 2 or 3 spaces that the rest of us should have been able to use but couldn’t! NoTV on the flight! Thankfully I had downloaded the United Airlines app and was able to watch movies on my phone. Don’t remember the last time I flew in a plane with no movie screens!

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!

Book cheap flights from Chicago to Sydney

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Chicago to Sydney found on KAYAK in the last 72 hours.
6/5Wed
3 stops
39h 40mORD-SYD
$675
7/2Tue
3 stops
46h 30mORD-SYD
$676
6/5Wed
1 stopAir Canada
24h 40mORD-SYD
$1,059
8/13Tue
2 stopsDelta
26h 25mMDW-SYD
$1,136
5/24Fri
1 stopAir Canada
24h 40mORD-SYD
$1,179
7/9Tue
1 stopQantas Airways
21h 55mORD-SYD
$1,365
7/1Mon
1 stopQantas Airways
21h 40mORD-SYD
$1,458
6/30Sun
1 stopANA
24h 40mORD-SYD
$1,461
7/17Wed
1 stopANA
24h 40mORD-SYD
$1,480
7/9Tue
2 stopsDelta
29h 24mMDW-SYD
$1,636

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Last minute flights from Chicago to Sydney

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 Chicago to Sydney that are departing in the next 10 days.
5/10Fri
multi-stop
39h 40mORD-SYD
6/16Sun
multi-stop
51h 14mSYD-ORD
$1,480
5/11Sat
multi-stopAir Canada
31h 29mORD-SYD
5/25Sat
multi-stopAir Canada
22h 49mSYD-ORD
$1,696
5/11Sat
multi-stopAir Canada
31h 29mORD-SYD
5/25Sat
multi-stopAir Canada
20h 09mSYD-ORD
$1,732
5/12Sun
multi-stopQantas Airways
21h 05mORD-SYD
5/19Sun
multi-stopQantas Airways
22h 55mSYD-ORD
$1,962
5/11Sat
multi-stopQatar Airways
30h 30mORD-SYD
5/13Mon
multi-stopQatar Airways
56h 35mSYD-ORD
$1,979
5/11Sat
multi-stopQantas Airways
25h 04mORD-SYD
5/13Mon
multi-stopQantas Airways
29h 13mSYD-ORD
$1,999
5/11Sat
multi-stopQatar Airways
42h 10mORD-SYD
5/13Mon
multi-stopQatar Airways
56h 35mSYD-ORD
$2,044
5/12Sun
multi-stopAir New Zealand
25h 35mORD-SYD
5/19Sun
multi-stopAir New Zealand
26h 07mSYD-ORD
$2,279
5/11Sat
multi-stopAir New Zealand
30h 28mORD-SYD
5/13Mon
multi-stopAir New Zealand
27h 22mSYD-ORD
$2,380
5/12Sun
multi-stopDelta
30h 03mMDW-SYD
5/19Sun
multi-stopDelta
27h 36mSYD-MDW
$2,895

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Flights to Sydney

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Sydney (SYD)Australia

Return flight deals:

Sydney - Chicago

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