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Cheap flights from Chicago O'Hare Intl Airport to Sydney from $402

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 O'Hare Intl Airport to Sydney departing on 2/6. 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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Find the cheapest flights from Chicago O'Hare Intl Airport to Sydney

Cheap round-trip flights

These are some of the best round-trip flight deals from Chicago O'Hare Intl Airport to Sydney that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Chicago O'Hare Intl Airport to Sydney.

Cheap last minute flights

Planning a quick getaway from Chicago O'Hare Intl Airport to Sydney? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Sydney, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Chicago O'Hare Intl Airport to Sydney

Find recent round-trip train or bus tickets from Chicago O'Hare Intl Airport to Sydney.

All round-trip flight deals to Sydney

The cheapest plane tickets to Sydney found on KAYAK recently.
7:00 am - 7:15 pmORD-SYD
45h 15m2 stops
8:55 pm - 5:03 amSYD-ORD
47h 08m2 stops
$694ANA
Find Deal
Sun, May 11 - Sun, May 25
7:00 am - 7:15 pmORD-SYD
45h 15m2 stops
8:55 pm - 5:03 amSYD-ORD
47h 08m2 stops
$695ANA
Find Deal
Sun, May 11 - Sun, May 25
6:50 pm - 7:05 amORD-SYD
21h 15m1 stop
9:10 am - 7:38 pmSYD-ORD
25h 28m1 stop
$809Qantas Airways
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Wed, May 14 - Wed, May 21
7:13 pm - 9:00 amORD-SYD
21h 47m1 stop
11:15 am - 3:55 pmSYD-ORD
20h 40m1 stop
$811Qantas Airways
Find Deal
Mon, Mar 10 - Wed, Mar 26
7:00 am - 7:15 pmORD-SYD
45h 15m2 stops
5:35 pm - 11:28 pmSYD-ORD
20h 53m1 stop
Sun, May 11 - Sun, May 25
7:00 am - 7:15 pmORD-SYD
45h 15m2 stops
5:35 pm - 11:28 pmSYD-ORD
20h 53m1 stop
Sun, May 11 - Sun, May 25
3:22 pm - 6:35 amORD-SYD
22h 13m1 stop
5:35 pm - 5:07 amSYD-ORD
26h 32m1 stop
$842American Airlines
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Tue, Feb 11 - Sun, Jun 22
2:40 pm - 6:35 amORD-SYD
23h 55m2 stops
11:50 am - 9:07 pmSYD-ORD
25h 17m1 stop
$846American Airlines
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Mon, Mar 10 - Wed, Mar 26
11:35 am - 9:35 amORD-SYD
29h 00m2 stops
11:20 am - 7:55 pmSYD-ORD
25h 35m2 stops
$1,239Air Canada
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Sun, Feb 2 - Tue, Feb 25
11:35 am - 9:35 amORD-SYD
29h 00m2 stops
11:20 am - 7:55 pmSYD-ORD
25h 35m2 stops
$1,240Air Canada
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Tue, Feb 4 - Mon, Feb 17
3:20 pm - 9:00 amORD-SYD
24h 40m1 stop
$402Qantas Airways
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Thu, Feb 6
9:45 am - 7:25 amORD-SYD
28h 40m1 stop
$414American Airlines
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Thu, Jan 30
9:45 am - 7:25 amORD-SYD
28h 40m1 stop
$415American Airlines
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Wed, Jan 22
8:25 pm - 9:00 amORD-SYD
43h 35m1 stop
$418Qantas Airways
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Sat, Feb 1
12:08 pm - 6:35 amORD-SYD
26h 27m1 stop
$421Qantas Airways
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Tue, Apr 1
7:20 am - 8:20 amORD-SYD
33h 00m2 stops
$710Air Canada
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Tue, Apr 1
7:20 am - 8:20 amORD-SYD
33h 00m3 stops
$716Air Canada
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Tue, Apr 1
3:35 pm - 9:05 amORD-SYD
24h 30m1 stop
$907United Airlines
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Sun, Jan 19
6:30 am - 9:15 amORD-SYD
33h 45m1 stop
$928United Airlines
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Mon, Jan 20
2:40 pm - 12:00 pmORD-SYD
28h 20m1 stop
$1,447Cathay Pacific
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Fri, Jan 17
8:25 pm - 9:00 amORD-SYD
43h 35m1 stop
11:15 am - 5:29 pmSYD-ORD
23h 14m1 stop
$842Qantas Airways
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Mon, Dec 23 - Mon, Dec 30
8:25 pm - 9:00 amORD-SYD
43h 35m1 stop
11:15 am - 7:44 pmSYD-ORD
25h 29m1 stop
$850Qantas Airways
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Mon, Dec 23 - Sun, Dec 29
11:56 am - 6:35 amORD-SYD
25h 39m1 stop
9:25 pm - 5:46 amSYD-ORD
25h 21m1 stop
$864American Airlines
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Wed, Dec 25 - Fri, Dec 27
2:14 pm - 6:35 amORD-SYD
23h 21m2 stops
9:25 pm - 5:46 amSYD-ORD
25h 21m1 stop
$868American Airlines
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Wed, Dec 25 - Fri, Dec 27
9:50 am - 9:35 amORD-SYD
30h 45m2 stops
11:20 am - 10:54 amSYD-ORD
40h 34m3 stops
$1,530Air Canada
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Tue, Dec 24 - Sun, Dec 29
8:25 pm - 9:35 amORD-SYD
44h 10m2 stops
11:20 am - 7:32 pmSYD-ORD
25h 12m2 stops
$1,531Air Canada
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Mon, Dec 23 - Mon, Dec 30
6:15 am - 9:05 amORD-SYD
33h 50m1 stop
4:15 pm - 11:19 pmSYD-ORD
24h 04m1 stop
$1,746United Airlines
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Thu, Dec 26 - Sun, Jan 12
6:25 pm - 9:05 amORD-SYD
21h 40m1 stop
4:15 pm - 6:18 amSYD-ORD
31h 03m1 stop
$1,749United Airlines
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Thu, Dec 26 - Sun, Jan 12
9:45 pm - 9:05 amORD-SYD
42h 20m1 stop
11:45 am - 7:49 pmSYD-ORD
25h 04m2 stops
$2,593Air New Zealand
Find Deal
Mon, Dec 23 - Sun, Dec 29
6:20 pm - 9:15 amORD-SYD
21h 55m1 stop
1:55 pm - 8:25 pmSYD-ORD
23h 30m2 stops
$2,621Air New Zealand
Find Deal
Fri, Dec 27 - Fri, Jan 31

Qantas Airways flights from Chicago O'Hare Intl Airport to Sydney

Our best Qantas Airways deals on Chicago O'Hare Intl Airport to Sydney flight tickets
Qantas Airways
May 14
ORD6:50 pmChicago O'Hare Intl
21h 15m
1 stop
SYD7:05 amSydney Kingsford Smith
May 21
SYD9:10 amSydney Kingsford Smith
25h 28m
1 stop
ORD7:38 pmChicago O'Hare Intl
Qantas Airways
Mar 10
ORD7:13 pmChicago O'Hare Intl
21h 47m
1 stop
SYD9:00 amSydney Kingsford Smith
Mar 26
SYD11:15 amSydney Kingsford Smith
20h 40m
1 stop
ORD3:55 pmChicago O'Hare Intl
Qantas Airways
Feb 16
ORD3:17 pmChicago O'Hare Intl
24h 43m
1 stop
SYD9:00 amSydney Kingsford Smith
Mar 3
SYD11:15 amSydney Kingsford Smith
23h 02m
1 stop
ORD5:17 pmChicago O'Hare Intl

Fiji Airways flights from Chicago O'Hare Intl Airport to Sydney

Our best Fiji Airways deals on Chicago O'Hare Intl Airport to Sydney flight tickets
Fiji Airways
Mar 1
ORD4:55 pmChicago O'Hare Intl
26h 35m
2 stops
SYD12:30 pmSydney Kingsford Smith
Mar 15
SYD2:30 pmSydney Kingsford Smith
22h 37m
2 stops
ORD9:07 pmChicago O'Hare Intl
Fiji Airways
Feb 8
ORD4:35 pmChicago O'Hare Intl
26h 55m
2 stops
SYD12:30 pmSydney Kingsford Smith
Feb 20
SYD2:00 pmSydney Kingsford Smith
22h 18m
2 stops
ORD7:18 pmChicago O'Hare Intl
Fiji Airways
Feb 11
ORD4:55 pmChicago O'Hare Intl
26h 35m
2 stops
SYD12:30 pmSydney Kingsford Smith
Feb 25
SYD2:00 pmSydney Kingsford Smith
22h 17m
2 stops
ORD7:17 pmChicago O'Hare Intl

See travel insights to Sydney from

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

In general, March is the cheapest month to fly from Chicago O'Hare Intl Airport to Sydney. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $965. If you are unable to visit Sydney during the month of March, then departing from Chicago O'Hare Intl Airport during the month February is also very affordable. Most momondo users find prices during this month for around $1,040.

What is the cheapest day to depart on your flight to Sydney?

The cheapest day to depart from Chicago O'Hare Intl Airport to Sydney is on a Saturday when prices can be found for as low as $1,166. The most expensive day to fly to Sydney is Thursday, with ticket prices averaging around $1,391.

What is the cheapest time of day to depart on your flight to Sydney?

According to our data, the cheapest time of day to fly to Sydney is in the morning. momondo users have found flights departing from Chicago O'Hare Intl Airport to Sydney in the morning for as low as $1,224. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Sydney are more costly in the evening, with an average ticket price of $1,412. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

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

The ideal time to book your flight to Sydney is 37 days in advance when prices tend to average $1,234. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sydney from Chicago O'Hare Intl Airport for as low as $872 on momondo.

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

You could potentially save up to 2% on your flight if you consider stops on a Chicago O'Hare Intl Airport to Sydney flight.

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

As of December 2024, prices for Chicago O'Hare Intl Airport to Sydney flights are approximately 52% cheaper when compared to flights at the same time last year.

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

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

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

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

Best Price Found

$402

Fastest flight time

21h 10m

Direct flights

None

Airports in Sydney

1 airport
The best one-way flight to Sydney from Chicago O'Hare Intl Airport in the past 72 hours is $402. The best round-trip flight deal from Chicago O'Hare Intl Airport to Sydney found on momondo in the last 72 hours is $694.
The fastest flight from Chicago O'Hare Intl Airport to Sydney takes 21h 10m
There are no direct flights from Chicago O'Hare Intl Airport to Sydney. Popular non-direct route for this connection is Chicago O'Hare Intl Airport - Sydney Kingsford Smith Airport.
There is 1 airport near Sydney: Sydney Kingsford Smith (SYD)

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

    Sydney Kingsford Smith is 9224.8 mi away from Chicago O'Hare Intl. 21h 10m is a normal flight duration for this route.

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

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

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago O'Hare Intl Airport to Sydney Kingsford Smith Airport.

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

    The travel and health documents required for your trip to Sydney Kingsford Smith Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Sydney Kingsford Smith Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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


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

Compare and see reviews for airlines that fly from Chicago O'Hare Intl Airport to Sydney with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $842Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $851Free CancellationRating
8.0
8,594 reviews
Search Delta flights
Qantas AirwaysPriceFrom $852Free CancellationRating
7.5
806 reviews
Search Qantas Airways flights
United AirlinesPriceFrom $916Free CancellationRating
7.4
9,028 reviews
Search United Airlines flights
Air CanadaPriceFrom $956Free CancellationRating
7.0
8,413 reviews
Search Air Canada flights
Cathay PacificPriceFrom $1,138Free CancellationRating
7.5
835 reviews
Search Cathay Pacific flights
Air New ZealandPriceFrom $1,197Free CancellationRating
7.9
493 reviews
Search Air New Zealand flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Chicago to Sydney. Millions of users trust and use momondo every year so you are in good hands.

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

All flight searches from Chicago to Sydney on momondo can be filtered to show those which offer flexible booking policies.

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

Once all potential Chicago to Sydney 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 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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