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Cheap flights from Sydney to Chicago from $622

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Sydney to Chicago departing on 2/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

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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
Wed, Jan 28 - Wed, Feb 4
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
Thu, Feb 19 - Fri, Mar 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
Fri, Jan 30 - Fri, Feb 6
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
Tue, Mar 3 - Tue, Apr 14
Air New Zealand Logo
11:55 am - 9:31 pm
SYD
-
ORD
24h 36m2 stops
Air New Zealand Logo
4:40 pm - 8:45 am
ORD
-
SYD
25h 05m2 stops
$1,173Air New Zealand
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
Sat, May 16 - Sat, Jun 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, Feb 19 - Fri, Mar 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
Thu, Jun 11 - Thu, Aug 6

Delta flights from Sydney to Chicago O'Hare Intl Airport

Our best Delta deals on Sydney to Chicago O'Hare Intl Airport flight tickets
Delta
Jun 11
SYD9:15 amSydney Kingsford Smith
29h 40m
2 stops
ORD11:55 pmChicago O'Hare Intl
Aug 6
ORD12:10 pmChicago O'Hare Intl
27h 25m
2 stops
SYD6:35 amSydney Kingsford Smith
$1,427
Find similar
Delta
Jun 12
SYD9:15 amSydney Kingsford Smith
24h 26m
2 stops
ORD6:41 pmChicago O'Hare Intl
Jul 12
ORD7:00 amChicago O'Hare Intl
32h 35m
1 stop
SYD6:35 amSydney Kingsford Smith
$1,429
Find similar
Delta
Jan 13
SYD10:40 amSydney Kingsford Smith
23h 46m
2 stops
ORD5:26 pmChicago O'Hare Intl
Jan 20
ORD9:55 amChicago O'Hare Intl
27h 55m
2 stops
SYD6:50 amSydney Kingsford Smith
$1,579
Find similar

Cathay Pacific flights from Sydney to Chicago O'Hare Intl Airport

Our best Cathay Pacific deals on Sydney to Chicago O'Hare Intl Airport flight tickets
Cathay Pacific
Jun 11
SYD2:05 pmSydney Kingsford Smith
39h 20m
1 stop
ORD2:25 pmChicago O'Hare Intl
Aug 6
ORD4:00 pmChicago O'Hare Intl
37h 10m
1 stop
SYD8:10 pmSydney Kingsford Smith
$1,336
Find similar
Cathay Pacific
Jan 28
SYD3:15 pmSydney Kingsford Smith
38h 40m
1 stop
ORD12:55 pmChicago O'Hare Intl
Feb 4
ORD2:35 pmChicago O'Hare Intl
28h 25m
1 stop
SYD12:00 pmSydney Kingsford Smith
$1,405
Find similar
Cathay Pacific
Mar 4
SYD11:05 amSydney Kingsford Smith
42h 50m
1 stop
ORD12:55 pmChicago O'Hare Intl
Mar 8
ORD3:35 pmChicago O'Hare Intl
26h 00m
1 stop
SYD9:35 amSydney Kingsford Smith
$1,450
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Sydney to Chicago O'Hare Intl Airport 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 December 16, 2025.
Use the filters below to find and compare flights from Sydney to Chicago O'Hare Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Wed 1/28

1:55 pm-11:14 pm

2 stops26h 19m

Chicago O'Hare Intl

Wed 2/4

3:53 pm-3:55 pm

2 stops31h 02m

$1,069

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Thu 2/19

11:20 am-2:04 pm

1 stop19h 44m

Chicago O'Hare Intl

Fri 3/6

8:55 pm-9:00 am

1 stop43h 05m

$1,134

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Fri 1/30

9:55 am-7:50 pm

2 stops26h 55m

Chicago O'Hare Intl

Fri 2/6

3:53 pm-8:45 am

2 stops23h 52m

$1,139

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Tue 3/3

11:20 am-5:36 pm

1 stop23h 16m

Chicago O'Hare Intl

Tue 4/14

5:30 pm-7:05 am

1 stop22h 35m

$1,142

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Tue 3/3

11:20 am-4:38 pm

1 stop22h 18m

Chicago O'Hare Intl

Tue 4/14

5:02 pm-7:05 am

2 stops23h 03m

$1,147

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Tue 3/3

2:05 pm-6:46 pm

2 stops21h 41m

Chicago O'Hare Intl

Tue 4/14

5:02 pm-7:05 am

2 stops23h 03m

$1,154

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Sat 5/16

11:55 am-9:31 pm

2 stops24h 36m

Chicago O'Hare Intl

Sat 6/6

4:40 pm-8:45 am

2 stops25h 05m

$1,173

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Sat 5/16

11:55 am-11:28 pm

2 stops26h 33m

Chicago O'Hare Intl

Sat 6/6

4:40 pm-8:45 am

2 stops25h 05m

$1,175

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Thu 2/19

12:10 pm-2:45 pm

1 stop19h 35m

Chicago O'Hare Intl

Fri 3/6

2:26 pm-9:05 am

2 stops25h 39m

$1,201

SydneyChicago

SYD - ORD

SYDORD

Sydney Kingsford Smith

Thu 6/11

11:50 am-5:05 am

2 stops32h 15m

Chicago O'Hare Intl

Thu 8/6

5:45 pm-9:25 am

1 stop24h 40m

$1,216

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 Chicago from

How to get the cheapest flight ticket from Sydney to Chicago O'Hare Intl Airport

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 cheapest month to fly to Chicago O'Hare Intl Airport?

The month of March is another great option to travel to Chicago O'Hare Intl Airport, with average flight prices from Sydney averaging around $725.

What is the cheapest day to depart on your flight to Chicago O'Hare Intl Airport?

The cheapest day to depart on your flight to Chicago O'Hare Intl Airport is on a Monday when prices can be found for as low as $886. This is often the case because there is less demand to fly during this day of the week. On the other hand, Sunday is the most expensive day to depart from Sydney because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,619.

What is the cheapest time of day to depart on your flight to Chicago O'Hare Intl Airport?

Flying to Chicago O'Hare Intl Airport from Sydney in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $1,274 when looking at flights departing in the afternoon. Try not to purchase tickets in the evening because they tend to be around $1,432. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

You are more likely to see cheaper flights to Chicago O'Hare Intl Airport from Sydney when booking weeks ahead of your departure date. In general, you can expect to find flights to Chicago O'Hare Intl Airport for around $961 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chicago O'Hare Intl Airport from Sydney for as low as $772 on momondo.

Can stopping save me money on Sydney to Chicago O'Hare Intl Airport flights?

You could potentially save up to 13% on your flight if you consider stops on a Sydney to Chicago O'Hare Intl Airport flight.

How have Sydney to Chicago O'Hare Intl Airport flight prices changed over time?

As of December 2025, prices for Sydney to Chicago O'Hare Intl Airport flights are approximately 51% cheaper when compared to flights at the same time last year.

When to book flights from Sydney to Chicago O'Hare Intl Airport

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

Cheap Sydney to Chicago O'Hare Intl Airport (SYD to ORD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Sydney to Chicago O'Hare Intl Airport

Fastest flight time

19h 44m

Direct flights

None
The fastest flight from Sydney to Chicago O'Hare Intl Airport takes 19h 44m
There are no direct flights from Sydney to Chicago O'Hare Intl Airport. There are no popular flight routes from Sydney to Chicago O'Hare Intl Airport.
Search flight deals

  • How far is Sydney Kingsford Smith to Chicago O'Hare Intl by plane?

    A flight from Sydney Kingsford Smith to Chicago O'Hare Intl will travel around 9224.8 mi. 19h 44m is a normal flight duration for this route.

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

    Prices for flights from Sydney Kingsford Smith Airport to Chicago O'Hare Intl Airport are refreshed on a daily basis.

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

  • How old do you have to be to fly from Sydney Kingsford Smith Airport to Chicago O'Hare Intl 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 Sydney Kingsford Smith Airport to Chicago O'Hare Intl Airport.

  • What documentation or ID do you need to fly to Chicago O'Hare Intl Airport?

    The necessary travel and health documents for your Chicago O'Hare Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Sydney to Chicago O'Hare Intl Airport?

Best airlines flying from Sydney to Chicago O'Hare Intl Airport

Compare and see reviews for airlines that fly from Sydney to Chicago O'Hare Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
Qantas AirwaysPriceFrom $631Free CancellationRating
7.5
946 reviews
Search Qantas Airways flights

Traveling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Lake Geneva
Schaumburg
South Haven
Rockford
Merrillville
Gurnee
Naperville
Rosemont
Kenosha
New Buffalo
Joliet
Oak Brook
Orland Park
Racine
Hammond
Janesville
Tinley Park
Aurora
Elgin
Benton Harbor

Why use momondo?

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

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 Sydney to Chicago for you.

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

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

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

Once all potential Sydney to Chicago flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are not ready to book a flight from Sydney to Chicago now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Chicago and let you know when they change.

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