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Cheap flights from Chicago to Sydney from $462

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago to Sydney departing on 3/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Chicago to Sydney

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
6:00 am - 7:30 am
ORD
-
SYD
34h 30m
1 stop
Multiple Airlines Logo
1:15 pm - 5:50 am
SYD
-
ORD
31h 35m
2 stops
$942Multiple Airlines
ср., апр 15 - пн., май 4
Qantas Airways Logo
4:45 pm - 9:00 am
ORD
-
SYD
23h 15m
1 stop
Qantas Airways Logo
7:05 am - 2:53 pm
SYD
-
ORD
24h 48m
2 stops
$945Qantas Airways
пн., фев 16 - ср., фев 25
Multiple Airlines Logo
7:45 pm - 7:30 am
ORD
-
SYD
44h 45m
1 stop
Multiple Airlines Logo
1:15 pm - 5:50 am
SYD
-
ORD
31h 35m
2 stops
$952Multiple Airlines
вт., апр 7 - вт., апр 14
Multiple Airlines Logo
9:20 pm - 7:30 am
ORD
-
SYD
43h 10m
1 stop
Multiple Airlines Logo
1:15 pm - 5:50 am
SYD
-
ORD
31h 35m
2 stops
$953Multiple Airlines
чт., апр 16 - чт., май 7
Multiple Airlines Logo
9:20 pm - 7:30 am
ORD
-
SYD
43h 10m
1 stop
Multiple Airlines Logo
1:10 pm - 5:50 am
SYD
-
ORD
31h 40m
2 stops
$958Multiple Airlines
чт., апр 16 - ср., май 6
Multiple Airlines Logo
7:45 pm - 7:30 am
ORD
-
SYD
44h 45m
1 stop
Multiple Airlines Logo
1:15 pm - 5:50 am
SYD
-
ORD
31h 35m
2 stops
$959Multiple Airlines
вт., апр 7 - сб., апр 25
Qantas Airways Logo
4:49 pm - 7:35 am
ORD
-
SYD
45h 46m
2 stops
Qantas Airways Logo
11:20 am - 11:55 pm
SYD
-
ORD
29h 35m
1 stop
$965Qantas Airways
сб., фев 28 - сб., мар 7
Delta Logo
12:46 pm - 8:30 am
MDW
-
SYD
26h 44m
2 stops
Delta Logo
9:40 am - 5:22 pm
SYD
-
MDW
23h 42m
2 stops
$1,388Delta
вт., фев 10 - вт., мар 17
Delta Logo
9:53 am - 8:30 am
MDW
-
SYD
29h 37m
2 stops
Delta Logo
10:40 am - 5:45 pm
SYD
-
MDW
24h 05m
2 stops
$1,438Delta
ср., фев 11 - пт., фев 27
China Eastern Logo
6:34 pm - 7:25 am
MDW
-
SYD
44h 51m
2 stops
China Eastern Logo
9:40 am - 5:54 pm
SYD
-
MDW
24h 14m
2 stops
$1,448China Eastern
сб., мар 14 - сб., мар 21

Air Canada flights from Chicago to Sydney

Our best Air Canada deals on Chicago to Sydney flight tickets
Air Canada
Mar 22
ORD3:35 pmChicago O'Hare Intl
25h 00m
1 stop
SYD8:35 amSydney Kingsford Smith
Apr 7
SYD9:20 amSydney Kingsford Smith
20h 23m
1 stop
ORD2:43 pmChicago O'Hare Intl
$1,123
Air Canada
Mar 22
ORD1:55 pmChicago O'Hare Intl
26h 40m
2 stops
SYD8:35 amSydney Kingsford Smith
Apr 7
SYD9:20 amSydney Kingsford Smith
20h 23m
1 stop
ORD2:43 pmChicago O'Hare Intl
$1,131
Air Canada
Apr 29
ORD9:05 amChicago O'Hare Intl
31h 15m
2 stops
SYD7:20 amSydney Kingsford Smith
May 14
SYD9:20 amSydney Kingsford Smith
22h 15m
2 stops
ORD4:35 pmChicago O'Hare Intl
$1,143

Delta flights from Chicago to Sydney

Our best Delta deals on Chicago to Sydney flight tickets
Delta
Feb 8
MDW10:48 amChicago Midway
27h 02m
2 stops
SYD6:50 amSydney Kingsford Smith
Mar 10
SYD9:40 amSydney Kingsford Smith
24h 14m
2 stops
MDW5:54 pmChicago Midway
$1,387
Delta
Feb 10
MDW12:46 pmChicago Midway
26h 44m
2 stops
SYD8:30 amSydney Kingsford Smith
Mar 17
SYD9:40 amSydney Kingsford Smith
23h 42m
2 stops
MDW5:22 pmChicago Midway
$1,388
Delta
Feb 10
ORD6:15 amChicago O'Hare Intl
33h 15m
2 stops
SYD8:30 amSydney Kingsford Smith
Feb 25
SYD10:40 amSydney Kingsford Smith
39h 00m
2 stops
ORD8:40 amChicago O'Hare Intl
$1,399

momondo Fare Finder

 
Customize your flight search to find flights from Chicago to Sydney that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated февраль 3, 2026.
Use the filters below to find and compare flights from Chicago to Sydney that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

ср. 4/15

6:00 am-7:30 am

1 stop34h 30m

Sydney Kingsford Smith

пн. 5/4

1:15 pm-5:50 am

2 stops31h 35m

$942

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

пн. 2/16

4:45 pm-9:00 am

1 stop23h 15m

Sydney Kingsford Smith

ср. 2/25

7:05 am-2:53 pm

2 stops24h 48m

$945

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

вт. 4/7

7:45 pm-7:30 am

1 stop44h 45m

Sydney Kingsford Smith

вт. 4/14

1:15 pm-5:50 am

2 stops31h 35m

$952

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

чт. 4/16

9:20 pm-7:30 am

1 stop43h 10m

Sydney Kingsford Smith

чт. 5/7

1:15 pm-5:50 am

2 stops31h 35m

$953

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

чт. 4/16

9:20 pm-7:30 am

1 stop43h 10m

Sydney Kingsford Smith

ср. 5/6

1:10 pm-5:50 am

2 stops31h 40m

$958

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

вт. 4/7

7:45 pm-7:30 am

1 stop44h 45m

Sydney Kingsford Smith

сб. 4/25

1:15 pm-5:50 am

2 stops31h 35m

$959

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

сб. 2/28

4:49 pm-7:35 am

2 stops45h 46m

Sydney Kingsford Smith

сб. 3/7

11:20 am-11:55 pm

1 stop29h 35m

$965

ChicagoSydney

MDW - SYD

MDWSYD

Chicago Midway

вт. 2/10

12:46 pm-8:30 am

2 stops26h 44m

Sydney Kingsford Smith

вт. 3/17

9:40 am-5:22 pm

2 stops23h 42m

$1,388

ChicagoSydney

MDW - SYD

MDWSYD

Chicago Midway

ср. 2/11

9:53 am-8:30 am

2 stops29h 37m

Sydney Kingsford Smith

пт. 2/27

10:40 am-5:45 pm

2 stops24h 05m

$1,438

ChicagoSydney

MDW - SYD

MDWSYD

Chicago Midway

сб. 3/14

6:34 pm-7:25 am

2 stops44h 51m

Sydney Kingsford Smith

сб. 3/21

9:40 am-5:54 pm

2 stops24h 14m

$1,448

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Sydney from

How to get the cheapest flight ticket from Chicago to Sydney

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Chicago and Sydney?

What is the cheapest month to fly to Sydney?

In general, June is the cheapest month to fly from Chicago to Sydney. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $865. If you are unable to visit Sydney during the month of June, then departing from Chicago during the month May is also very affordable. Most momondo users find prices during this month for around $869.

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

You are more likely to see cheaper flights to Sydney from Chicago when booking weeks ahead of your departure date. In general, you can expect to find flights to Sydney for around $1,110 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sydney from Chicago for as low as $911 on momondo.

Can stopping save me money on Chicago to Sydney flights?

You could potentially save up to 1% on your flight if you consider stops on a Chicago to Sydney flight.

How have Chicago to Sydney flight prices changed over time?

As of February 2026, prices for Chicago to Sydney flights are approximately 11% cheaper when compared to flights at the same time last year.

When to book flights from Chicago to Sydney

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago to Sydney according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Chicago to Sydney (CHI to SYD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago to Sydney

Fastest flight time

21h 20m

Direct flights

None
The fastest flight from Chicago to Sydney takes 21h 20m
There are no direct flights from Chicago to Sydney. There are no popular flight routes from Chicago to Sydney.
Search flight deals

  • How far is Chicago to Sydney Kingsford Smith by plane?

    There are 9237.5 mi between Chicago and Sydney Kingsford Smith. By plane, this route typically takes 21h 20m.

  • When did momondo last update prices for flights from Chicago to Sydney Kingsford Smith Airport?

    Prices for flights from Chicago to Sydney Kingsford Smith Airport were last updated today.

  • How many operators does momondo search for flights from Chicago to Sydney Kingsford Smith Airport?

  • How old do you have to be to fly from Chicago to Sydney Kingsford Smith Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Chicago to Sydney Kingsford Smith Airport.

  • What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?

    The required travel and health documents for your Sydney Kingsford Smith Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Sydney Kingsford Smith Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Chicago to Sydney?

Best airlines flying from Chicago to Sydney

Compare and see reviews for airlines that fly from Chicago to Sydney with momondo
Airline
Rating
Free Cancellation
Price
ANAPriceFrom $703Free CancellationRating
8.4
1,084 reviews
Search ANA flights
Fiji AirwaysPriceFrom $795Free CancellationRating
8.0
223 reviews
Search Fiji Airways flights
American AirlinesPriceFrom $803Free CancellationRating
7.2
11,217 reviews
Search American Airlines flights
Qantas AirwaysPriceFrom $806Free CancellationRating
7.5
985 reviews
Search Qantas Airways flights
United AirlinesPriceFrom $870Free CancellationRating
7.4
9,235 reviews
Search United Airlines flights
Air CanadaPriceFrom $891Free CancellationRating
7.1
10,684 reviews
Search Air Canada flights
DeltaPriceFrom $935Free CancellationRating
7.9
8,138 reviews
Search Delta flights
Air New ZealandPriceFrom $1,282Free CancellationRating
8.0
578 reviews
Search Air New Zealand flights

Traveling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Bondi Beach
Parramatta
Katoomba
Wollongong
Randwick
Penrith
Coogee
Manly
Lithgow
Leura
Cronulla
Charlestown
Terrigal
Swansea

Why use momondo?

Why should I use momondo to find a flight deal from Chicago to Sydney?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Chicago to Sydney for you.

Can I find flights from Chicago to Sydney with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Sydney from Chicago with this policy.

How can momondo help me find flights from Chicago to Sydney?

Once you have performed a search for Chicago to Sydney flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Chicago to Sydney right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Chicago to Sydney flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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