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Cheap flights from Illinois to Sydney from C$ 476

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Sydney departing on 10/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Illinois to Sydney

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
3:45 p.m. - 12:45 a.m.ORD  Chicago O'Hare Intl-YQY Sydney
7h 00m1 stop Toronto Pearson Intl
Air Canada Logo
5:05 a.m. - 11:21 a.m.YQY  Sydney-ORD Chicago O'Hare Intl
8h 16m1 stop Toronto Pearson Intl
C$ 1,029Air Canada
Wed, 9 Sep - Wed, 16 Sep
Air Canada Logo
3:45 p.m. - 12:12 a.m.ORD  Chicago O'Hare Intl-YQY Sydney
6h 27m1 stop Toronto Pearson Intl
Air Canada Logo
5:05 a.m. - 12:00 p.m.YQY  Sydney-ORD Chicago O'Hare Intl
8h 55m1 stop Toronto Pearson Intl
C$ 1,031Air Canada
Wed, 2 Sep - Sun, 6 Sep
Air Canada Logo
11:05 a.m. - 12:45 a.m.ORD  Chicago O'Hare Intl-YQY Sydney
11h 40m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl
Air Canada Logo
5:05 a.m. - 9:53 a.m.YQY  Sydney-ORD Chicago O'Hare Intl
6h 48m1 stop Toronto Pearson Intl
C$ 1,035Air Canada
Wed, 9 Sep - Wed, 16 Sep
Air Canada Logo
11:05 a.m. - 12:45 a.m.ORD  Chicago O'Hare Intl-YQY Sydney
11h 40m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl
Air Canada Logo
5:05 a.m. - 2:52 p.m.YQY  Sydney-ORD Chicago O'Hare Intl
11h 47m2 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl
C$ 1,039Air Canada
Wed, 9 Sep - Wed, 16 Sep
Air Canada Logo
5:00 a.m. - 4:07 p.m.ORD  Chicago O'Hare Intl-YQY Sydney
9h 07m2 stops Newark Montreal Pierre Elliott Trudeau Intl
Air Canada Logo
5:05 a.m. - 2:52 p.m.YQY  Sydney-ORD Chicago O'Hare Intl
11h 47m2 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl
C$ 1,063Air Canada
Thu, 10 Sep - Sun, 13 Sep
Air Canada Logo
11:15 a.m. - 12:45 a.m.ORD  Chicago O'Hare Intl-YQY Sydney
11h 30m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl
Air Canada Logo
5:05 a.m. - 9:00 a.m.YQY  Sydney-ORD Chicago O'Hare Intl
5h 55m1 stop Toronto Pearson Intl
C$ 1,100Air Canada
Mon, 28 Sep - Mon, 5 Oct
Air Canada Logo
3:45 p.m. - 12:45 a.m.ORD  Chicago O'Hare Intl-YQY Sydney
7h 00m1 stop Toronto Pearson Intl
Air Canada Logo
5:05 a.m. - 9:00 a.m.YQY  Sydney-ORD Chicago O'Hare Intl
5h 55m1 stop Toronto Pearson Intl
C$ 1,101Air Canada
Mon, 28 Sep - Mon, 5 Oct
Air Canada Logo
3:45 p.m. - 12:45 a.m.ORD  Chicago O'Hare Intl-YQY Sydney
7h 00m1 stop Toronto Pearson Intl
Air Canada Logo
5:05 a.m. - 9:00 a.m.YQY  Sydney-ORD Chicago O'Hare Intl
5h 55m1 stop Toronto Pearson Intl
C$ 1,107Air Canada
Mon, 28 Sep - Mon, 5 Oct
Air Canada Logo
3:45 p.m. - 12:45 a.m.ORD  Chicago O'Hare Intl-YQY Sydney
7h 00m1 stop Toronto Pearson Intl
Air Canada Logo
5:20 p.m. - 9:00 a.m.YQY  Sydney-ORD Chicago O'Hare Intl
17h 40m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl
C$ 1,125Air Canada
Mon, 28 Sep - Mon, 5 Oct
Air Canada Logo
11:15 a.m. - 12:45 a.m.ORD  Chicago O'Hare Intl-YQY Sydney
11h 30m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl
Air Canada Logo
5:20 p.m. - 9:00 a.m.YQY  Sydney-ORD Chicago O'Hare Intl
17h 40m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl
C$ 1,139Air Canada
Mon, 28 Sep - Mon, 5 Oct

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Air Canada flights from Illinois to Sydney, Nova Scotia

Our best Air Canada deals on Illinois to Sydney, Nova Scotia flight tickets
Air Canada
2 Sep
ORD3:45 p.m.Chicago O'Hare Intl
6h 27m
1 stop
YQY12:12 a.m.Sydney
6 Sep
YQY5:05 a.m.Sydney
8h 55m
1 stop
ORD12:00 p.m.Chicago O'Hare Intl
C$ 1,031
Air Canada
9 Sep
ORD3:45 p.m.Chicago O'Hare Intl
7h 00m
1 stop
YQY12:45 a.m.Sydney
16 Sep
YQY5:05 a.m.Sydney
11h 47m
2 stops
ORD2:52 p.m.Chicago O'Hare Intl
C$ 1,035
Air Canada
9 Sep
ORD11:05 a.m.Chicago O'Hare Intl
11h 40m
2 stops
YQY12:45 a.m.Sydney
16 Sep
YQY5:05 a.m.Sydney
11h 47m
2 stops
ORD2:52 p.m.Chicago O'Hare Intl
C$ 1,039

momondo Fare Finder

 
Customize your flight search to find flights from Illinois to Sydney, Nova Scotia 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, momondo users made 96,600 searches. Data last updated 16 August 2026.
Use the filters below to find and compare flights from Illinois to Sydney, Nova Scotia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoSydney

ORD Chicago O'Hare Intl - YQY Sydney

ORDYQY

Chicago O'Hare Intl

Wed 9/9

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

1 stop7h 00m

Sydney

Wed 16/9

5:05 a.m.-11:21 a.m.

1 stop8h 16m

C$ 1,029

ChicagoSydney

ORD Chicago O'Hare Intl - YQY Sydney

ORDYQY

Chicago O'Hare Intl

Wed 2/9

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

1 stop6h 27m

Sydney

Sun 6/9

5:05 a.m.-12:00 p.m.

1 stop8h 55m

C$ 1,031

ChicagoSydney

ORD Chicago O'Hare Intl - YQY Sydney

ORDYQY

Chicago O'Hare Intl

Wed 9/9

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

2 stops11h 40m

Sydney

Wed 16/9

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

1 stop6h 48m

C$ 1,035

ChicagoSydney

ORD Chicago O'Hare Intl - YQY Sydney

ORDYQY

Chicago O'Hare Intl

Wed 9/9

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

2 stops11h 40m

Sydney

Wed 16/9

5:05 a.m.-2:52 p.m.

2 stops11h 47m

C$ 1,039

ChicagoSydney

ORD Chicago O'Hare Intl - YQY Sydney

ORDYQY

Chicago O'Hare Intl

Thu 10/9

5:00 a.m.-4:07 p.m.

2 stops9h 07m

Sydney

Sun 13/9

5:05 a.m.-2:52 p.m.

2 stops11h 47m

C$ 1,063

ChicagoSydney

ORD Chicago O'Hare Intl - YQY Sydney

ORDYQY

Chicago O'Hare Intl

Mon 28/9

11:15 a.m.-12:45 a.m.

2 stops11h 30m

Sydney

Mon 5/10

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

1 stop5h 55m

C$ 1,100
Quickest round-trip

ChicagoSydney

ORD Chicago O'Hare Intl - YQY Sydney

ORDYQY

Chicago O'Hare Intl

Mon 28/9

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

1 stop7h 00m

Sydney

Mon 5/10

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

1 stop5h 55m

C$ 1,101

ChicagoSydney

ORD Chicago O'Hare Intl - YQY Sydney

ORDYQY

Chicago O'Hare Intl

Mon 28/9

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

1 stop7h 00m

Sydney

Mon 5/10

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

1 stop5h 55m

C$ 1,107

ChicagoSydney

ORD Chicago O'Hare Intl - YQY Sydney

ORDYQY

Chicago O'Hare Intl

Mon 28/9

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

1 stop7h 00m

Sydney

Mon 5/10

5:20 p.m.-9:00 a.m.

2 stops17h 40m

C$ 1,125

ChicagoSydney

ORD Chicago O'Hare Intl - YQY Sydney

ORDYQY

Chicago O'Hare Intl

Mon 28/9

11:15 a.m.-12:45 a.m.

2 stops11h 30m

Sydney

Mon 5/10

5:20 p.m.-9:00 a.m.

2 stops17h 40m

C$ 1,139

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 resultsSorted by cheapest first
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See travel insights to Sydney from

How to get the cheapest flight ticket from Illinois to Sydney, Nova Scotia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Illinois to Sydney?

Air Canada is the most popular carrier operating from Illinois to Sydney

Cheap Illinois to Sydney, Nova Scotia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to Sydney, Nova Scotia

Fastest flight time

6h 56m

Direct flights

None
The fastest flight from Illinois to Sydney, Nova Scotia takes 6h 56m
There are no direct flights from Illinois to Sydney, Nova Scotia. There are no popular flight routes from Illinois to Sydney, Nova Scotia.
Search flight deals

Frequently asked questions about flying from Illinois to Sydney, Nova Scotia

  • When did momondo last update prices for flights from Illinois to Sydney Airport?

    Prices for flights from Illinois to Sydney Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Illinois to Sydney Airport?

    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.

  • What documentation or ID do you need to fly 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.

Travelling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
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Why use momondo?

Why should I use momondo to find a flight deal from Illinois to Sydney?

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.

Can I find flights from Illinois to Sydney with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Illinois to Sydney flights to just show those with flexible booking policies.

How can momondo help me find flights from Illinois to Sydney?

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.

I’m not ready to book a flight from Illinois to Sydney right now. Can momondo alert me if prices change?

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.

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Find better results for your trip to Canada

Airports servicing Nova Scotia

Halifax Intl Airport