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Cheap flights from Illinois to Sydney, NS from C$ 532

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/9. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — YQY
20 Aug — 27 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Illinois to Sydney

Enter your travel dates to find the best prices.

Cheapest flights from Illinois to Sydney
Explore the most affordable flight options available from Illinois to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 July 2026.

Tue 20/103:45 p.m.
ORD
-
YQY
1 stop7h 00m
Air Canada
Wed 21/105:05 a.m.
YQY
-
ORD
1 stop6h 43m
Air Canada
Deal found 18/7C$ 1,155
Sun 20/93:45 p.m.
ORD
-
YQY
1 stop7h 00m
Multiple Airlines
Mon 21/95:05 a.m.
YQY
-
ORD
1 stop6h 48m
Multiple Airlines
Deal found 20/7C$ 1,174
Sun 20/911:05 a.m.
ORD
-
YQY
2 stops11h 40m
Air Canada
Mon 21/95:05 a.m.
YQY
-
ORD
2 stops11h 47m
Air Canada
Deal found 20/7C$ 1,183
Wed 19/87:11 a.m.
ORD
-
YQY
1 stop7h 09m
Multiple Airlines
Wed 26/85:05 a.m.
YQY
-
ORD
1 stop6h 48m
Multiple Airlines
Deal found 20/7C$ 1,196
Tue 18/83:45 p.m.
ORD
-
YQY
1 stop6h 27m
Air Canada
Mon 31/85:05 a.m.
YQY
-
ORD
2 stops11h 39m
Air Canada
Deal found 18/7C$ 1,235
Tue 18/83:45 p.m.
ORD
-
YQY
1 stop6h 27m
Multiple Airlines
Mon 31/85:10 p.m.
YQY
-
ORD
1 stop16h 41m
Multiple Airlines
Deal found 18/7C$ 1,238
Sat 29/88:40 a.m.
ORD
-
YQY
1 stop5h 40m
Air Canada
Sat 5/95:05 a.m.
YQY
-
ORD
1 stop10h 17m
Air Canada
Deal found 21/7C$ 1,239
Sat 24/102:40 p.m.
STL
-
YQY
1 stop8h 05m
Air Canada
Wed 28/105:45 a.m.
YQY
-
STL
2 stops11h 41m
Air Canada
Deal found 18/7C$ 1,383
Fri 4/96:53 p.m.
STL
-
YQY
2 stops19h 21m
Air Canada
Fri 11/95:05 a.m.
YQY
-
STL
2 stops17h 33m
Air Canada
Deal found 20/7C$ 1,809

Find flight deals from Illinois to Sydney

Keep the following information in mind while searching for Illinois to Sydney flight deals. Data was last updated 21 July 2026.

Round-trip from

C$ 1,155

One-way from

C$ 532
Air Canada
  • Air Canada
  • 20/10-21/10
  • 2 total stops
  • 13h 43m total
  • Illinois to Sydney
Search Deals
Air Canada
  • Air Canada
  • 10/9
  • 1 total stop
  • 7h 00m total
  • Illinois to Sydney
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois 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, Cheapflights users made 629,999 searches. Data last updated 21 July 2026.
Use the filters below to find and compare flights from Illinois to Sydney that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

ChicagoSydney

ORD - YQY

ORDYQY

Chicago O'Hare Intl

Tue 20/10

3:45 p.m.-12:45 a.m.

1 stop7h 00m

Sydney

Wed 21/10

5:05 a.m.-9:48 a.m.

1 stop6h 43m

C$ 1,155

ChicagoSydney

ORD - YQY

ORDYQY

Chicago O'Hare Intl

Sun 20/9

3:45 p.m.-12:45 a.m.

1 stop7h 00m

Sydney

Mon 21/9

5:05 a.m.-9:53 a.m.

1 stop6h 48m

C$ 1,174

St. LouisSydney

STL - YQY

STLYQY

Lambert-St Louis

Sat 24/10

2:40 p.m.-12:45 a.m.

1 stop8h 05m

Sydney

Wed 28/10

5:45 a.m.-3:26 p.m.

2 stops11h 41m

C$ 1,383

St. LouisSydney

STL - YQY

STLYQY

Lambert-St Louis

Fri 4/9

8:55 a.m.-12:12 a.m.

1 stop13h 17m

Sydney

Fri 11/9

5:05 a.m.-2:00 p.m.

1 stop10h 55m

C$ 1,863
Cheapest one-way

ChicagoSydney

ORD - YQY

ORDYQY

Chicago O'Hare Intl

Thu 10/9

11:05 a.m.-12:45 a.m.

2 stops11h 40m

C$ 536
Quickest one-way

ChicagoSydney

ORD - YQY

ORDYQY

Chicago O'Hare Intl

Sat 15/8

7:11 a.m.-4:20 p.m.

1 stop7h 09m

C$ 546

ChicagoSydney

ORD - YQY

ORDYQY

Chicago O'Hare Intl

Sat 15/8

8:40 a.m.-12:12 a.m.

2 stops13h 32m

C$ 587

Flights are sorted by cheapest round-trip flights first.

Deals found on 19/7

Sorted by cheapest first

Best time to book a flight from Illinois to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney from Illinois with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Illinois to Sydney

No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Illinois to Sydney. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Sydney from Illinois?

    If you book a flight to Sydney from Illinois, you will be flying to Sydney, which is the city’s only airport. Sydney (YQY) is located 11.2 km from the centre of Sydney.

  • How long is the flight from Illinois to Sydney, Nova Scotia?

    Air Canada can get you from Illinois to Sydney, Nova Scotia in just under 7h. Your travel time can differ by up to . The distance between Illinois and Sydney, Nova Scotia is about 2260 km.

  • Can I find deals for flights from Illinois to Sydney that include hotel bookings?

    Yes. In addition to deals on Illinois to Sydney flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Sydney?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Sydney.

  • Can I find deals for business class flights from Illinois to Sydney?

    Yes. Cheapflights offers flight deals from Illinois to Sydney by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Travelling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Inverness

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Why should you use Cheapflights to find cheap flight tickets from Illinois to Sydney?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Sydney from Illinois.

Can Cheapflights find flights from Illinois to Sydney with no change fees?

Need flexible booking options for your flight to Sydney from Illinois? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Illinois to Sydney become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Sydney from Illinois today and book when prices fit your budget.

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