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Cheap flights from Illinois to Sydney, NS from C$ 818

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 1/2. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — YQY
20 Jan — 27 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Illinois to Sydney

Enter your travel dates to find the best prices.

Best flights from Illinois to Sydney
Discover carefully curated flight deals from Illinois to Sydney that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 21 December 2025.

Sun 1/23:35 p.m.ORD - YQY
1 stop5h 48mAir Canada
Sat 7/25:20 a.m.YQY - ORD
1 stop7h 46mAir Canada
Deal found 20/12C$ 818
Sun 1/210:20 p.m.ORD - YQY
3 stops23h 03mMultiple Airlines
Sat 7/25:20 a.m.YQY - ORD
2 stops9h 41mMultiple Airlines
Deal found 20/12C$ 1,805
Tue 5/52:15 p.m.ORD - YQY
1 stop7h 59mAir Canada
Fri 8/55:05 a.m.YQY - ORD
1 stop16h 20mAir Canada
Deal found 18/12C$ 1,067
Thu 28/52:20 p.m.STL - YQY
1 stop7h 54mAir Canada
Mon 1/65:05 a.m.YQY - STL
1 stop9h 01mAir Canada
Deal found 18/12C$ 1,594

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 December 2025.

Round-trip from

C$ 818
Air Canada
  • Air Canada
  • 1/2-7/2
  • 2 total stops
  • 13h 34m total
  • Illinois to Sydney
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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 December 2025.
Use the filters below to find and compare flights from Illinois to Sydney that are best for you.

Fly from

Illinois

Fly to

Sydney

Route

Depart

Return

Price

ChicagoSydney

ORD - YQY

ORDYQY

Chicago O'Hare Intl

Sun 1/2

3:35 p.m.-11:23 p.m.

1 stop5h 48m

Sydney

Sat 7/2

5:20 a.m.-11:06 a.m.

1 stop7h 46m

C$ 818

ChicagoSydney

ORD - YQY

ORDYQY

Chicago O'Hare Intl

Tue 5/5

2:15 p.m.-12:14 a.m.

1 stop7h 59m

Sydney

Fri 8/5

5:05 a.m.-7:25 p.m.

1 stop16h 20m

C$ 1,067

St. LouisSydney

STL - YQY

STLYQY

Lambert-St Louis

Thu 28/5

2:20 p.m.-12:14 a.m.

1 stop7h 54m

Sydney

Mon 1/6

5:05 a.m.-12:06 p.m.

1 stop9h 01m

C$ 1,594

ChicagoSydney

ORD - YQY

ORDYQY

Chicago O'Hare Intl

Sun 1/2

10:20 p.m.-11:23 p.m.

3 stops23h 03m

Sydney

Sat 7/2

5:20 a.m.-1:01 p.m.

2 stops9h 41m

C$ 1,805

Flights are sorted by cheapest round-trip flights first.

Deals found on 20/12

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 48m. 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

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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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