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Find cheap flights from Illinois to Australia from $496

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Illinois to Australia 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
0 bags
vie. 6/21
vie. 6/28

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Good to know

Low season

April

High season

December

Cheapest flight

$496
Best time to beat the crowds with an average 15% drop in price.
Most popular time to fly with an average 27% increase in price.
Flight from Chicago to Brisbane

FAQs for booking flights from Illinois to Australia

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

    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 Australia.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Australia 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 Australia?

    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 Australia 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 Australia?

    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 Australia from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Book cheap flights from Illinois to Australia

Recent round-trip flight deals

11/10dom.
1 stopAmerican Airlines
31h 25mORD-SYD
11/19mar.
1 stopAmerican Airlines
29h 22mSYD-ORD
$1,084
9/2lun.
2 stopsAmerican Airlines
30h 20mORD-SYD
9/17mar.
2 stopsAmerican Airlines
27h 24mSYD-ORD
$1,085
11/13mié.
1 stopAir Canada
23h 40mORD-SYD
11/18lun.
2 stopsAir Canada
22h 30mSYD-ORD
$1,144
10/23mié.
2 stopsAir Canada
31h 33mORD-SYD
11/6mié.
3 stopsAir Canada
37h 45mSYD-ORD
$1,150
8/13mar.
2 stopsAir New Zealand
29h 30mORD-BNE
8/20mar.
2 stopsAir New Zealand
23h 35mBNE-ORD
$1,190
8/20mar.
2 stopsAir New Zealand
25h 35mORD-MEL
8/27mar.
2 stopsAir New Zealand
27h 05mMEL-ORD
$1,199
11/3dom.
2 stops
26h 59mORD-AVV
11/13mié.
2 stops
26h 41mAVV-ORD
$1,261
8/13mar.
1 stop
24h 20mORD-BNE
8/20mar.
2 stops
32h 36mBNE-ORD
$1,275
6/20jue.
1 stopAlaska Airlines
32h 30mORD-SYD
7/7dom.
2 stopsAlaska Airlines
33h 38mSYD-ORD
$1,299
6/20jue.
2 stopsAlaska Airlines
27h 57mORD-SYD
7/7dom.
2 stopsAlaska Airlines
33h 38mSYD-ORD
$1,395

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Recent one-way flight deals

8/12lun.
3 stops
58h 28mORD-BNE
$496
7/10mié.
2 stops
34h 27mORD-SYD
$658
9/3mar.
1 stopCathay Pacific
28h 10mORD-MEL
$957
10/11vie.
2 stopsPhilippine Airlines
31h 10mORD-MEL
$1,009
10/29mar.
2 stopsDelta
30h 00mMDW-SYD
$1,037
8/20mar.
1 stopJapan Airlines
26h 45mORD-SYD
$1,057
8/5lun.
2 stopsPhilippine Airlines
34h 26mORD-SYD
$1,106
7/16mar.
1 stopCathay Pacific
46h 50mORD-MEL
$1,228
8/5lun.
2 stopsDelta
26h 25mMDW-SYD
$1,362
5/26dom.
1 stopJapan Airlines
26h 45mORD-SYD
$1,750

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Last minute flights from Illinois to Australia

Last minute flight, train and bus deals

5/23jue.
multi-stopAir Canada
30h 30mSTL-SYD
5/30jue.
multi-stopAir Canada
26h 45mSYD-STL
$1,280
5/23jue.
multi-stopAir Canada
30h 30mSTL-SYD
5/30jue.
multi-stopAir Canada
50h 45mSYD-STL
$1,285
5/23jue.
multi-stopQantas Airways
22h 03mSTL-SYD
5/30jue.
multi-stopQantas Airways
29h 02mSYD-STL
$1,400
5/25sáb.
multi-stopAlaska Airlines
31h 45mORD-MEL
6/1sáb.
multi-stopAlaska Airlines
32h 00mMEL-ORD
$1,406
5/23jue.
multi-stopAmerican Airlines
22h 03mSTL-SYD
5/30jue.
multi-stopAmerican Airlines
25h 15mSYD-STL
$1,488
5/24vie.
multi-stop
32h 07mORD-MEL
5/31vie.
multi-stop
31h 25mMEL-ORD
$1,505
5/25sáb.
multi-stop
29h 15mORD-MEL
6/1sáb.
multi-stop
32h 45mMEL-ORD
$1,522
5/25sáb.
multi-stopAlaska Airlines
31h 45mORD-MEL
6/1sáb.
multi-stopAlaska Airlines
32h 00mMEL-ORD
$1,526
5/24vie.
multi-stopAmerican Airlines
28h 13mORD-SYD
10/24jue.
multi-stopAmerican Airlines
25h 23mSYD-ORD
$2,184
5/25sáb.
multi-stopQantas Airways
25h 04mORD-SYD
5/27lun.
multi-stopQantas Airways
21h 30mSYD-ORD
$2,701

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