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Cheap flights from Illinois to Sydney from $705

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Sydney departing on 11/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

Air Canada Logo
12:50 pm - 10:29 pmORD-YQY
7h 39m1 stop
Air Canada Logo
5:30 am - 11:18 amYQY-ORD
7h 48m1 stop
$705Air Canada
Find Deal
Sun, Nov 9 - Sun, Nov 16
Air Canada Logo
8:40 am - 3:54 pmORD-YQY
5h 14m1 stop
Air Canada Logo
5:30 am - 11:18 amYQY-ORD
7h 48m1 stop
$706Air Canada
Find Deal
Thu, Oct 23 - Thu, Oct 30
Air Canada Logo
8:40 am - 3:54 pmORD-YQY
5h 14m1 stop
Air Canada Logo
5:30 am - 1:01 pmYQY-ORD
9h 31m2 stops
$712Air Canada
Find Deal
Thu, Oct 23 - Thu, Oct 30
Air Canada Logo
10:00 am - 10:53 pmORD-YQY
10h 53m2 stops
Air Canada Logo
5:30 am - 1:01 pmYQY-ORD
9h 31m2 stops
$719Air Canada
Find Deal
Wed, Jan 7 - Mon, Jan 19
Air Canada Logo
10:00 am - 10:29 pmORD-YQY
10h 29m2 stops
Air Canada Logo
5:30 am - 1:01 pmYQY-ORD
9h 31m2 stops
$752Air Canada
Find Deal
Sun, Nov 9 - Sun, Nov 16
Air Canada Logo
6:06 pm - 3:54 pmORD-YQY
19h 48m2 stops
Air Canada Logo
5:30 am - 12:51 pmYQY-ORD
9h 21m2 stops
$786Air Canada
Find Deal
Thu, Oct 23 - Thu, Oct 30
Air Canada Logo
4:05 pm - 11:32 amSTL-YQY
17h 27m1 stop
Air Canada Logo
5:30 am - 3:29 pmYQY-STL
11h 59m2 stops
$1,062Air Canada
Find Deal
Sat, Nov 8 - Sat, Nov 15
Air Canada Logo
6:43 pm - 11:32 amSTL-YQY
14h 49m2 stops
Air Canada Logo
5:30 am - 3:29 pmYQY-STL
11h 59m2 stops
$1,067Air Canada
Find Deal
Sat, Nov 8 - Sat, Nov 15
Multiple Airlines Logo
6:40 pm - 10:53 pmSTL-YQY
26h 13m2 stops
Multiple Airlines Logo
12:15 pm - 5:25 pmYQY-STL
31h 10m2 stops
$1,088Multiple Airlines
Find Deal
Tue, Jan 6 - Mon, Jan 19
Multiple Airlines Logo
4:49 pm - 10:53 pmSTL-YQY
28h 04m2 stops
Multiple Airlines Logo
12:15 pm - 3:29 pmYQY-STL
29h 14m1 stop
$1,177Multiple Airlines
Find Deal
Tue, Jan 6 - Mon, Jan 19

Air Canada flights from Illinois to Sydney, Nova Scotia

Our best Air Canada deals on Illinois to Sydney, Nova Scotia flight tickets
Air Canada
Nov 9
ORD12:50 pmChicago O'Hare Intl
7h 39m
1 stop
YQY10:29 pmSydney
Nov 16
YQY5:30 amSydney
7h 48m
1 stop
ORD11:18 amChicago O'Hare Intl
$705
Find similar
Air Canada
Oct 23
ORD8:40 amChicago O'Hare Intl
5h 14m
1 stop
YQY3:54 pmSydney
Oct 30
YQY5:30 amSydney
7h 48m
1 stop
ORD11:18 amChicago O'Hare Intl
$706
Find similar
Air Canada
Oct 23
ORD8:40 amChicago O'Hare Intl
5h 14m
1 stop
YQY3:54 pmSydney
Oct 30
YQY5:30 amSydney
9h 31m
2 stops
ORD1:01 pmChicago O'Hare Intl
$712
Find similar

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 832,500 searches. Data last updated September 25, 2025.
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

ChicagoSydney

ORD - YQY

ORDYQY

Chicago O'Hare Intl

Sun 11/9

12:50 pm-10:29 pm

1 stop7h 39m

Sydney

Sun 11/16

5:30 am-11:18 am

1 stop7h 48m

$705

ChicagoSydney

ORD - YQY

ORDYQY

Chicago O'Hare Intl

Thu 10/23

8:40 am-3:54 pm

1 stop5h 14m

Sydney

Thu 10/30

5:30 am-11:18 am

1 stop7h 48m

$706

ChicagoSydney

ORD - YQY

ORDYQY

Chicago O'Hare Intl

Thu 10/23

8:40 am-3:54 pm

1 stop5h 14m

Sydney

Thu 10/30

5:30 am-1:01 pm

2 stops9h 31m

$712

ChicagoSydney

ORD - YQY

ORDYQY

Chicago O'Hare Intl

Wed 1/7

10:00 am-10:53 pm

2 stops10h 53m

Sydney

Mon 1/19

5:30 am-1:01 pm

2 stops9h 31m

$719

ChicagoSydney

ORD - YQY

ORDYQY

Chicago O'Hare Intl

Sun 11/9

10:00 am-10:29 pm

2 stops10h 29m

Sydney

Sun 11/16

5:30 am-1:01 pm

2 stops9h 31m

$752

ChicagoSydney

ORD - YQY

ORDYQY

Chicago O'Hare Intl

Thu 10/23

6:06 pm-3:54 pm

2 stops19h 48m

Sydney

Thu 10/30

5:30 am-12:51 pm

2 stops9h 21m

$786

St. LouisSydney

STL - YQY

STLYQY

Lambert-St Louis

Sat 11/8

4:05 pm-11:32 am

1 stop17h 27m

Sydney

Sat 11/15

5:30 am-3:29 pm

2 stops11h 59m

$1,062

St. LouisSydney

STL - YQY

STLYQY

Lambert-St Louis

Sat 11/8

6:43 pm-11:32 am

2 stops14h 49m

Sydney

Sat 11/15

5:30 am-3:29 pm

2 stops11h 59m

$1,067

St. LouisSydney

STL - YQY

STLYQY

Lambert-St Louis

Tue 1/6

6:40 pm-10:53 pm

2 stops26h 13m

Sydney

Mon 1/19

12:15 pm-5:25 pm

2 stops31h 10m

$1,088

St. LouisSydney

STL - YQY

STLYQY

Lambert-St Louis

Tue 1/6

4:49 pm-10:53 pm

2 stops28h 04m

Sydney

Mon 1/19

12:15 pm-3:29 pm

1 stop29h 14m

$1,177

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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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 day to depart on your flight to Sydney, Nova Scotia?

The cheapest day to depart from Illinois to Sydney, Nova Scotia is on a Tuesday when prices can be found for as low as $380. When flying out on a Wednesday, the most expensive travel day of the week, you can expect to see flight prices from Illinois to Sydney, Nova Scotia for around $714.

What is the cheapest time of day to depart on your flight to Sydney, Nova Scotia?

According to our data, the cheapest time of day to fly to Sydney, Nova Scotia is in the morning. momondo users have found flights departing from Illinois to Sydney, Nova Scotia in the morning for as low as $392. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the afternoon is when there is more demand to fly to Sydney, Nova Scotia, so prices are often more expensive at around $772 per ticket.

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

Direct flights

None
There are no direct flights from Illinois to Sydney, Nova Scotia. There are no popular flight routes from Illinois to Sydney, Nova Scotia.
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  • When did momondo last update prices for flights from Illinois to Sydney Airport?

    Prices for flights from Illinois to Sydney Airport refresh daily.

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify 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 travel and health documents you'll need for your trip to Sydney Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Sydney Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Traveling 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?

Finding the right flight to Sydney from Illinois is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Sydney quick and easy, saving you time and money.

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?

momondo provides multiple filters to help you find the best flight to Sydney from Illinois. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Price alerts on flights to Sydney from Illinois are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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Airports servicing Nova Scotia

Halifax Intl Airport