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Cheap flights from Illinois to Sydney, NS from C$ 1,057

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 16/7. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — YQY
4 Jul — 11 Jul1
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 4 June 2026.

Wed 26/88:45 a.m.
ORD
-
YQY
1 stop5h 54m
Air Canada
Sat 29/85:00 a.m.
YQY
-
ORD
1 stop6h 00m
Air Canada
Deal found 1/6C$ 1,057
Tue 30/63:45 p.m.
ORD
-
YQY
1 stop6h 22m
Air Canada
Tue 7/75:00 a.m.
YQY
-
ORD
1 stop6h 00m
Air Canada
Deal found 31/5C$ 1,064
Fri 3/78:45 a.m.
ORD
-
YQY
1 stop5h 35m
Air Canada
Fri 10/75:00 a.m.
YQY
-
ORD
1 stop6h 00m
Air Canada
Deal found 3/6C$ 1,176
Fri 9/103:45 p.m.
ORD
-
YQY
1 stop7h 00m
Air Canada
Tue 13/105:05 a.m.
YQY
-
ORD
1 stop5h 55m
Air Canada
Deal found 3/6C$ 1,183
Sat 10/102:40 p.m.
STL
-
YQY
1 stop8h 05m
Air Canada
Tue 13/105:20 p.m.
YQY
-
STL
2 stops22h 40m
Air Canada
Deal found 1/6C$ 1,183
Wed 4/114:15 p.m.
STL
-
YQY
2 stops28h 16m
Air Canada
Sun 8/115:45 a.m.
YQY
-
STL
2 stops11h 45m
Air Canada
Deal found 30/5C$ 1,229
Thu 16/78:45 a.m.
ORD
-
YQY
1 stop5h 29m
Air Canada
Thu 23/75:00 a.m.
YQY
-
ORD
2 stops11h 55m
Air Canada
Deal found 1/6C$ 1,244

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 4 June 2026.

Round-trip from

C$ 1,057
Air Canada
  • Air Canada
  • 16/7-23/7
  • 2 total stops
  • 11h 29m 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 4 June 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

Thu 16/7

8:45 a.m.-4:14 p.m.

1 stop5h 29m

Sydney

Thu 23/7

5:00 a.m.-9:00 a.m.

1 stop6h 00m

C$ 1,057

ChicagoSydney

ORD - YQY

ORDYQY

Chicago O'Hare Intl

Wed 26/8

8:45 a.m.-4:39 p.m.

1 stop5h 54m

Sydney

Sat 29/8

5:00 a.m.-9:00 a.m.

1 stop6h 00m

C$ 1,057

ChicagoSydney

ORD - YQY

ORDYQY

Chicago O'Hare Intl

Tue 30/6

8:35 a.m.-4:14 p.m.

1 stop5h 39m

Sydney

Tue 7/7

5:00 a.m.-9:00 a.m.

1 stop6h 00m

C$ 1,057

ChicagoSydney

ORD - YQY

ORDYQY

Chicago O'Hare Intl

Fri 9/10

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

1 stop7h 00m

Sydney

Tue 13/10

5:05 a.m.-9:00 a.m.

1 stop5h 55m

C$ 1,183

St. LouisSydney

STL - YQY

STLYQY

Lambert-St Louis

Sat 10/10

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

1 stop8h 05m

Sydney

Tue 13/10

5:20 p.m.-2:00 p.m.

2 stops22h 40m

C$ 1,183

ChicagoSydney

ORD - YQY

ORDYQY

Chicago O'Hare Intl

Fri 3/7

8:45 a.m.-4:20 p.m.

1 stop5h 35m

Sydney

Fri 10/7

5:10 p.m.-9:00 a.m.

2 stops17h 50m

C$ 1,215

St. LouisSydney

STL - YQY

STLYQY

Lambert-St Louis

Wed 4/11

4:15 p.m.-11:34 a.m.

1 stop17h 19m

Sydney

Sun 8/11

5:45 a.m.-3:30 p.m.

2 stops11h 45m

C$ 1,503

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/6

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 5h 29m. 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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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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