Fly from
Fly to
Route
Depart
Return
ChicagoSydney
ORD - YQY
ORDYQY
Chicago O'Hare Intl
Sun 9/11
12:50 p.m.-10:29 p.m.
1 stop7h 39m
Sydney
Sun 16/11
5:30 a.m.-11:18 a.m.
1 stop7h 48m
ChicagoSydney
ORD - YQY
ORDYQY
Chicago O'Hare Intl
Thu 23/10
8:40 a.m.-3:54 p.m.
1 stop5h 14m
Sydney
Thu 30/10
5:30 a.m.-11:18 a.m.
1 stop7h 48m
ChicagoSydney
ORD - YQY
ORDYQY
Chicago O'Hare Intl
Thu 23/10
8:40 a.m.-3:54 p.m.
1 stop5h 14m
Sydney
Thu 30/10
5:30 a.m.-1:01 p.m.
2 stops9h 31m
ChicagoSydney
ORD - YQY
ORDYQY
Chicago O'Hare Intl
Wed 7/1
10:00 a.m.-10:53 p.m.
2 stops10h 53m
Sydney
Mon 19/1
5:30 a.m.-1:01 p.m.
2 stops9h 31m
ChicagoSydney
ORD - YQY
ORDYQY
Chicago O'Hare Intl
Sun 9/11
10:00 a.m.-10:29 p.m.
2 stops10h 29m
Sydney
Sun 16/11
5:30 a.m.-1:01 p.m.
2 stops9h 31m
ChicagoSydney
ORD - YQY
ORDYQY
Chicago O'Hare Intl
Thu 23/10
6:06 p.m.-3:54 p.m.
2 stops19h 48m
Sydney
Thu 30/10
5:30 a.m.-12:51 p.m.
2 stops9h 21m
St. LouisSydney
STL - YQY
STLYQY
Lambert-St Louis
Sat 8/11
4:05 p.m.-11:32 a.m.
1 stop17h 27m
Sydney
Sat 15/11
5:30 a.m.-3:29 p.m.
2 stops11h 59m
St. LouisSydney
STL - YQY
STLYQY
Lambert-St Louis
Sat 8/11
6:43 p.m.-11:32 a.m.
2 stops14h 49m
Sydney
Sat 15/11
5:30 a.m.-3:29 p.m.
2 stops11h 59m
St. LouisSydney
STL - YQY
STLYQY
Lambert-St Louis
Tue 6/1
6:40 p.m.-10:53 p.m.
2 stops26h 13m
Sydney
Mon 19/1
12:15 p.m.-5:25 p.m.
2 stops31h 10m
St. LouisSydney
STL - YQY
STLYQY
Lambert-St Louis
Tue 6/1
4:49 p.m.-10:53 p.m.
2 stops28h 04m
Sydney
Mon 19/1
12:15 p.m.-3:29 p.m.
1 stop29h 14m
Prices for flights from Illinois to Sydney Airport are refreshed on a daily basis.
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Illinois to Sydney Airport.
The necessary travel and health documents for your Sydney Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
Price Alerts will notify you by email when the price for flights to Sydney, Nova Scotia from Illinois decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.
By using tools like our “Price Calendar”, you can see the best day to fly round-trip for your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.
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We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Illinois to Sydney for you.
Yes. momondo allows you to filter the results for Illinois to Sydney flights to just show those with flexible booking policies.
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Sydney from Illinois.
Yes. momondo can track prices for Illinois 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.