ORD - YQY

$900 Find Cheap Flights from Chicago to Sydney - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$900
Typical prices: $811-$1,293
Air Canada
Mon 11/12Mon 11/19
ORD - YQY • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Chicago O'Hare Intl Airport and Sydney. You'll need to take a connecting flight to reach the destination.
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Insights
Top layover airports
Montreal Pierre Elliott Trudeau Intl (YUL)
Cheapest • Avg $662 (round-trip)
Toronto Pearson Intl (YYZ)
Shortest trip • 7h 40m (one-way)
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Insights
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Cheap Flights from Chicago to Sydney (ORD-YQY)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Chicago to Sydney

Thu, Nov 12 - Thu, Nov 19
Air Canada Logo
3:40 pm - 12:26 amORD  Chicago O'Hare Intl-YQY Sydney
6h 46m1 stop Montreal Pierre Elliott Trudeau Intl
Air Canada Logo
6:05 am - 11:07 amYQY  Sydney-ORD Chicago O'Hare Intl
7h 02m1 stop Montreal Pierre Elliott Trudeau Intl
$900Air Canada
Thu, Nov 12 - Thu, Nov 19
Air Canada Logo
1:55 pm - 12:26 amORD  Chicago O'Hare Intl-YQY Sydney
8h 31m2 stops Toronto Island Montreal Pierre Elliott Trudeau Intl
Air Canada Logo
6:05 am - 1:13 pmYQY  Sydney-ORD Chicago O'Hare Intl
9h 08m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl
$908Air Canada
Tue, Jan 12 - Fri, Jan 15
Air Canada Logo
3:45 pm - 12:26 amORD  Chicago O'Hare Intl-YQY Sydney
6h 41m1 stop Montreal Pierre Elliott Trudeau Intl
Air Canada Logo
5:45 am - 11:07 amYQY  Sydney-ORD Chicago O'Hare Intl
7h 22m1 stop Montreal Pierre Elliott Trudeau Intl
$1,000Air Canada
Tue, Jan 12 - Fri, Jan 15
Air Canada Logo
2:00 pm - 12:26 amORD  Chicago O'Hare Intl-YQY Sydney
8h 26m2 stops Toronto Island Montreal Pierre Elliott Trudeau Intl
Air Canada Logo
5:45 am - 1:13 pmYQY  Sydney-ORD Chicago O'Hare Intl
9h 28m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl
$1,008Air Canada
Tue, Jan 12 - Fri, Jan 15
Air Canada Logo
3:45 pm - 12:26 amORD  Chicago O'Hare Intl-YQY Sydney
6h 41m1 stop Montreal Pierre Elliott Trudeau Intl
Air Canada Logo
5:45 am - 11:07 amYQY  Sydney-ORD Chicago O'Hare Intl
7h 22m1 stop Montreal Pierre Elliott Trudeau Intl
$1,011Air Canada
Tue, Jan 12 - Fri, Jan 15
Air Canada Logo
2:00 pm - 12:26 amORD  Chicago O'Hare Intl-YQY Sydney
8h 26m2 stops Toronto Island Montreal Pierre Elliott Trudeau Intl
Air Canada Logo
5:45 am - 1:13 pmYQY  Sydney-ORD Chicago O'Hare Intl
9h 28m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl
$1,019Air Canada
Tue, Jan 12 - Fri, Jan 15
Air Canada Logo
10:48 am - 12:26 amORD  Chicago O'Hare Intl-YQY Sydney
11h 38m2 stops Ottawa Montreal Pierre Elliott Trudeau Intl
Air Canada Logo
5:45 am - 11:07 amYQY  Sydney-ORD Chicago O'Hare Intl
7h 22m1 stop Montreal Pierre Elliott Trudeau Intl
$1,020Air Canada
Tue, Jan 12 - Fri, Jan 15
Air Canada Logo
2:00 pm - 12:26 amORD  Chicago O'Hare Intl-YQY Sydney
8h 26m2 stops Toronto Island Montreal Pierre Elliott Trudeau Intl
Air Canada Logo
5:45 am - 1:13 pmYQY  Sydney-ORD Chicago O'Hare Intl
9h 28m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl
$1,028Air Canada
Booking Insights

Price, demand and travel trends for Chicago O'Hare Intl Airport to Sydney flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from Chicago O'Hare Intl Airport to Sydney?

Round-trip flights from Chicago O'Hare Intl Airport to Sydney typically range from $811 to $1,293. The lowest price found in the past 5 days was $900, on Air Canada.

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Key details for Chicago O'Hare Intl Airport to Sydney flights

Cheapest flight

$900
Round-trip flight from Chicago O'Hare Intl 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

Your Chicago O'Hare Intl Airport to Sydney flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from Chicago O'Hare Intl Airport to Sydney?

    Only Economy Class is available on flights from Chicago O'Hare Intl Airport to Sydney.

  • How long is a flight from Chicago O'Hare Intl Airport to Sydney?

    A nonstop flight from Chicago O'Hare Intl Airport to Sydney takes 00m, covering 1,404 miles.

  • Do I need a passport to fly from Chicago O'Hare Intl Airport to Sydney?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • Have flight prices from Chicago O'Hare Intl Airport to Sydney changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route varied from about $900 to $1,028. That means the highest observed fare was about 14% higher than the lowest one.

  • Which airports can I use when flying from Chicago O'Hare Intl Airport to Sydney?

    Flights from Chicago O'Hare Intl Airport to Sydney usually depart from Chicago O'Hare Intl (ORD) and arrive at Sydney (YQY).

  • Which airports do connecting flights from Chicago O'Hare Intl Airport to Sydney pass through?

    Connecting flights from Chicago O'Hare Intl Airport to Sydney most commonly pass through:

    • Montreal Pierre Elliott Trudeau Intl (YUL) - 50% of one-stop connections
    • Toronto Pearson Intl (YYZ) - 50% of one-stop connections

  • Can I save money by using flexible dates for flights from Chicago O'Hare Intl Airport to Sydney?

    Yes. Flexible dates can save you up to 38% on flights from Chicago O'Hare Intl Airport to Sydney. Thursday is the cheapest departure day at $811 round-trip on average, while Monday is the most expensive at $1,293, a difference of $482.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How much time can I save by choosing a different layover airport from Chicago O'Hare Intl Airport to Sydney?

    Flying via Montreal Pierre Elliott Trudeau Intl (YUL) gives the shortest average 1-stop total travel time at 5h 24m, compared with 7h 40m via Toronto Pearson Intl (YYZ).

  • What is the time difference between Chicago O'Hare Intl Airport and Sydney?

    Sydney is 2 hours ahead of Chicago O'Hare Intl Airport (Atlantic Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

Your guide to booking Chicago O'Hare Intl Airport to Sydney flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Thursday departure and avoid flying on Monday. On this route, Thursday flights average $811, about $482 less than Monday fares (37% savings) based on the last 12 months.

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