$637 Find Cheap Flights from Illinois to Sydney

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Sydney departing on 5/12. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Cheap Flights from Illinois to Sydney

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Illinois to Sydney that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Illinois to Sydney

Tue, 2 Dec - Tue, 16 Dec
Air Canada Logo
15:40 - 06:55ORD-SYD
22h 15m1 stop
Air Canada Logo
11:20 - 05:00SYD-ORD
34h 40m2 stops
$1,290Air Canada
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Thu, 11 Dec - Thu, 25 Dec
Air Canada Logo
15:40 - 09:35ORD-SYD
24h 55m1 stop
Air Canada Logo
16:00 - 11:18SYD-ORD
36h 18m2 stops
$1,293Air Canada
Find Deal
Sat, 17 Jan - Tue, 27 Jan
Multiple Airlines Logo
15:40 - 17:40ORD-SYD
33h 00m2 stops
Multiple Airlines Logo
11:20 - 14:41SYD-ORD
20h 21m1 stop
$1,305Multiple Airlines
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Mon, 1 Dec - Fri, 5 Dec
Multiple Airlines Logo
15:40 - 18:05ORD-SYD
33h 25m2 stops
Multiple Airlines Logo
08:30 - 14:41SYD-ORD
23h 11m2 stops
$1,311Multiple Airlines
Find Deal
Sat, 15 Nov - Mon, 24 Nov
Qantas Airways Logo
18:04 - 06:10ORD-SYD
43h 06m1 stop
Qantas Airways Logo
17:45 - 17:45SYD-ORD
41h 00m1 stop
$1,374Qantas Airways
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Wed, 12 Nov - Sun, 23 Nov
Qantas Airways Logo
07:00 - 09:50STL-SYD
33h 50m2 stops
Qantas Airways Logo
14:05 - 16:32SYD-STL
19h 27m1 stop
$1,891Qantas Airways
Find Deal
Wed, 12 Nov - Sun, 23 Nov
American Airlines Logo
07:00 - 06:55STL-SYD
30h 55m1 stop
American Airlines Logo
14:05 - 22:34SYD-STL
25h 29m1 stop
$1,900American Airlines
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Wed, 12 Nov - Sun, 23 Nov
American Airlines Logo
13:20 - 09:00STL-SYD
26h 40m2 stops
American Airlines Logo
11:20 - 16:32SYD-STL
22h 12m2 stops
$1,905American Airlines
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Mon, 1 Dec - Wed, 17 Dec
United Airlines Logo
11:20 - 07:00STL-SYD
26h 40m1 stop
United Airlines Logo
12:10 - 16:27SYD-STL
21h 17m1 stop
$1,916United Airlines
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Thu, 13 Nov - Mon, 17 Nov
United Airlines Logo
08:20 - 07:00STL-SYD
29h 40m1 stop
United Airlines Logo
11:50 - 18:47SYD-STL
23h 57m1 stop
$1,999United Airlines
Find Deal

Everything you should know

Cheapest return fare
$1,290
Typical prices: $1,424-$2,805
Air Canada
Tue 2/12Tue 16/12
ORD - SYD • 1 stop
Cheapest one-way flight
$637
Typical prices: $1,042-$2,097
Multiple Airlines
Fri 5/12
ORD - SYD • 2 stops
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Sydney!
Useful Info

Good to know

Low seasonSeptember
Cheapest flight$637
Best time to beat the crowds (11% less expensive on average)
Most popular time to fly and prices are also 7% lower on average.
Flight from Chicago O'Hare Airport to Sydney

FAQs for booking flights from Illinois to Sydney

  • How does KAYAK find such low prices on flights from Illinois to Sydney?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to Sydney.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Sydney?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Sydney from Illinois is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Illinois to Sydney?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Sydney with an airline and back to Illinois with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Sydney?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Sydney from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Travelling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Wollongong
Parramatta
Katoomba
Penrith
Terrigal
Leura
Manly
Coogee
Cronulla
Bondi Beach
Randwick
Lithgow
Charlestown
Newport
Swansea
Brooklyn

Everything you need to know for your flight to Sydney

Information on the airport you'll fly into in Sydney

Sydney (SYD)

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