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Find cheap flights from Illinois to Australia from $798

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 6/8. 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
di 7/2
di 7/9

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In the last 7 days travelers have searched 42,335,261 times on KAYAK, and here is why:

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Good to know

Low season

April

High season

December

Cheapest flight

$798
Best time to beat the crowds with an average 15% drop in price.
Most popular time to fly with an average 29% increase in price.
Flight from Chicago O'Hare Airport to Sydney

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

11/3zo
1 stopQantas Airways
21h 25mORD-SYD
11/11ma
1 stopQantas Airways
21h 44mSYD-ORD
$1,029
9/11wo
1 stopQantas Airways
25h 16mORD-SYD
9/19do
1 stopQantas Airways
25h 25mSYD-ORD
$1,077
11/3zo
2 stopsAmerican Airlines
27h 41mORD-SYD
11/11ma
2 stopsAmerican Airlines
23h 30mSYD-ORD
$1,085
11/3zo
1 stopAmerican Airlines
30h 04mORD-SYD
11/11ma
2 stopsAmerican Airlines
23h 30mSYD-ORD
$1,086
11/9za
2 stopsAir New Zealand
44h 30mORD-BNE
11/20wo
2 stopsAir New Zealand
26h 54mBNE-ORD
$1,200
11/11ma
2 stopsAir New Zealand
27h 15mORD-SYD
11/18ma
2 stopsAir New Zealand
26h 02mSYD-ORD
$1,202
7/23di
2 stops
24h 54mORD-SYD
7/30di
2 stops
31h 46mSYD-ORD
$1,256
8/20di
1 stopANA
24h 40mORD-SYD
9/3di
2 stopsANA
32h 43mSYD-ORD
$1,268
7/23di
3 stops
34h 56mORD-SYD
7/30di
2 stops
31h 46mSYD-ORD
$1,280
8/14wo
2 stopsANA
43h 15mORD-SYD
9/3di
2 stopsANA
32h 43mSYD-ORD
$1,331

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Recent one-way flight deals

6/8za
3 stops
54h 28mORD-SYD
$798
6/7vr
2 stops
32h 19mORD-SYD
$875
11/4ma
2 stopsChina Southern
47h 25mORD-BNE
$901
6/7vr
3 stops
39h 22mORD-SYD
$980
10/5za
2 stopsPhilippine Airlines
49h 13mORD-BNE
$1,017
6/16zo
3 stops
47h 25mORD-PER
$1,019
10/15di
2 stopsDelta
30h 15mMDW-SYD
$1,036
10/14ma
2 stopsDelta
25h 35mMDW-SYD
$1,037
6/11di
2 stopsAir Canada
48h 40mORD-SYD
$1,073
6/11di
1 stopAir Canada
24h 40mORD-SYD
$1,131

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Last minute flights from Illinois to Australia

Last minute flight, train and bus deals

6/5wo
multi-stopJapan Airlines
49h 05mORD-MEL
2/24ma
multi-stopJapan Airlines
29h 20mMEL-ORD
$1,727
6/5wo
multi-stop
24h 40mORD-SYD
6/7vr
multi-stop
35h 54mSYD-ORD
$1,990
6/5wo
multi-stopQantas Airways
25h 20mORD-SYD
6/7vr
multi-stopQantas Airways
23h 13mSYD-ORD
$1,999
6/5wo
multi-stop
24h 40mORD-SYD
6/7vr
multi-stop
35h 19mSYD-ORD
$2,020
6/4di
multi-stopAir New Zealand
23h 00mSTL-SYD
6/6do
multi-stopAir New Zealand
27h 20mSYD-STL
$2,034
6/6do
multi-stopQantas Airways
31h 49mORD-SYD
6/13do
multi-stopQantas Airways
23h 13mSYD-ORD
$2,063
6/4di
multi-stopAmerican Airlines
25h 04mORD-SYD
6/23zo
multi-stopAmerican Airlines
25h 19mSYD-ORD
$2,088
6/4di
multi-stopAmerican Airlines
25h 04mORD-SYD
6/23zo
multi-stopAmerican Airlines
30h 01mSYD-ORD
$2,100
6/5wo
multi-stopSWISS
43h 40mORD-MEL
2/23zo
multi-stopSWISS
56h 40mMEL-ORD
$2,165
6/6do
multi-stopAir New Zealand
26h 01mORD-SYD
6/13do
multi-stopAir New Zealand
26h 18mSYD-ORD
$2,279

Search by stops

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