SYD

$447 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 8/12. 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

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Flights Deals

Cheap Flights from Illinois to Sydney

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip 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 round-trip flight deals from Illinois to Sydney

Wed, Aug 6 - Fri, Aug 22
 Logo
6:40 am - 10:10 pmORD-SYD
48h 30m2 stops
 Logo
1:15 pm - 5:40 amSYD-ORD
31h 25m2 stops
Tue, Aug 12 - Tue, Aug 26
 Logo
6:40 am - 11:45 amORD-SYD
38h 05m2 stops
 Logo
1:15 pm - 5:40 amSYD-ORD
31h 25m2 stops
Fri, Aug 15 - Fri, Aug 22
United Airlines Logo
6:45 am - 7:00 amPIA-SYD
33h 15m2 stops
United Airlines Logo
10:20 am - 10:13 amSYD-PIA
38h 53m2 stops
$955United Airlines
Find Deal
Sun, Aug 24 - Sat, Sep 6
Alaska Airlines Logo
7:00 am - 7:05 amORD-SYD
33h 05m2 stops
Alaska Airlines Logo
9:10 am - 12:04 amSYD-ORD
29h 54m2 stops
$1,001Alaska Airlines
Find Deal
Thu, Aug 21 - Mon, Aug 25
United Airlines Logo
3:55 pm - 7:00 amPIA-SYD
24h 05m2 stops
United Airlines Logo
9:30 am - 9:12 pmSYD-PIA
26h 42m2 stops
$1,116United Airlines
Find Deal
Wed, Sep 10 - Wed, Sep 24
Alaska Airlines Logo
10:00 am - 7:30 amORD-SYD
30h 30m2 stops
Alaska Airlines Logo
5:45 pm - 7:03 amSYD-ORD
28h 18m2 stops
$1,117Alaska Airlines
Find Deal
Sat, Sep 27 - Sun, Oct 12
ANA Logo
8:05 pm - 7:15 pmORD-SYD
32h 10m2 stops
ANA Logo
12:50 pm - 8:40 amSYD-ORD
35h 50m1 stop
$1,137ANA
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Tue, Oct 14 - Mon, Nov 10
ANA Logo
5:45 pm - 8:15 pmORD-SYD
34h 30m1 stop
ANA Logo
12:25 pm - 5:16 amSYD-ORD
33h 51m2 stops
$1,142ANA
Find Deal
Wed, Nov 5 - Sun, Nov 23
Qantas Airways Logo
6:15 am - 6:45 pmSTL-SYD
43h 30m2 stops
Qantas Airways Logo
2:20 pm - 6:17 pmSYD-STL
20h 57m1 stop
$1,144Qantas Airways
Find Deal
Wed, Nov 5 - Sun, Nov 23
Qantas Airways Logo
6:15 am - 6:45 pmSTL-SYD
43h 30m2 stops
Qantas Airways Logo
2:20 pm - 4:09 pmSYD-STL
18h 49m1 stop
$1,145Qantas Airways
Find Deal
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Good to know

Low seasonMay
High seasonDecember
Cheapest flight$447
Best time to beat the crowds with an average 11% drop in price.
Most popular time to fly with an average 36% increase in price.
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 round-trip 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.

Traveling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Katoomba
Cronulla
Lithgow
Randwick

Everything you need to know for your flight to Sydney

Information on the airport you'll fly into in Sydney

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