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$343+ Cheap flights from Illinois to Australia

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/19. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SYD
Nov 25 — Dec 21
Mon 11/25
Mon 12/2
1 adult, Economy
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Cheap flight deals from Illinois to Australia

Discover tips and strategies to find the most affordable flight options for your journey from Illinois (USIL) to Australia (AU0). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 20, 2024.

Find flight deals from Illinois to Australia

Cheapest flights from Illinois to Australia
Explore the most affordable flight options available from Illinois to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 20, 2024.

This American Airlines deal was found by Cheapflights users on 11/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/317:35 amORD - BNE
1 stop29h 25mAmerican Airlines
Sat 5/1710:00 pmBNE - ORD
1 stop29h 08mAmerican Airlines
Deal found 11/18$680
This Gurufare deal was found by Cheapflights users on 11/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/224:02 pmORD - BNE
1 stop22h 13mQantas Airways
Sun 11/249:40 amBNE - ORD
1 stop25h 40mQantas Airways
Deal found 11/18$893
This KAYAK deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/36:50 pmORD - SYD
1 stop21h 10mQantas Airways
Tue 12/105:25 pmSYD - ORD
1 stop23h 34mQantas Airways
Deal found 11/20$896
This Flysmarter deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/63:23 pmORD - SYD
1 stop24h 37mBritish Airways
Sun 12/228:35 pmSYD - ORD
2 stops25h 37mBritish Airways
Deal found 11/20$920
This American Airlines deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/3011:10 amORD - SYD
1 stop26h 25mAmerican Airlines
Thu 1/165:25 pmSYD - ORD
1 stop29h 40mAmerican Airlines
Deal found 11/19$933
This Qantas Airways deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/203:15 pmORD - BNE
1 stop21h 45mMultiple Airlines
Wed 11/2710:00 pmBNE - ORD
1 stop23h 02mMultiple Airlines
Deal found 11/19$976
This oojo deal was found by Cheapflights users on 11/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/261:23 pmORD - MEL
1 stop25h 12mQantas Airways
Wed 12/48:30 pmMEL - ORD
2 stops37h 58mQantas Airways
Deal found 11/18$1,180
This Orbitz deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/103:40 pmORD - AVV
2 stops38h 35mMultiple Airlines
Wed 1/158:55 pmAVV - ORD
2 stops36h 04mMultiple Airlines
Deal found 11/20$1,195
This Mytrip deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/83:21 pmORD - SYD
3 stops28h 09mMultiple Airlines
Tue 12/246:15 amSYD - ORD
2 stops32h 09mMultiple Airlines
Deal found 11/19$1,234
This Mytrip deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/117:33 amORD - MEL
3 stops35h 42mMultiple Airlines
Wed 1/151:45 pmMEL - ORD
3 stops32h 45mMultiple Airlines
Deal found 11/20$1,263
This KAYAK deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/283:40 pmORD - PER
2 stops30h 30mQantas Airways
Fri 1/315:35 amPER - ORD
2 stops29h 39mQantas Airways
Deal found 11/19$1,275
This Qantas Airways deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/73:27 pmORD - PER
2 stops28h 43mMultiple Airlines
Sat 12/148:00 amPER - ORD
2 stops29h 59mMultiple Airlines
Deal found 11/19$1,375

Find flights from Illinois to Australia within your budget

Customize your flight search to find flights from Illinois to Australia 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, Cheapflights users made 2,629,791 searches. Data last updated November 20, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Sat 3/15

12:08 pm-5:00 am

1 stop25h 52m

Brisbane

Wed 3/26

10:00 pm-5:04 am

1 stop22h 04m

$680

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Thu 2/6

4:35 pm-6:35 am

1 stop21h 00m

Sydney Kingsford Smith

Thu 2/27

9:25 pm-5:42 am

1 stop25h 17m

$893

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Sun 12/1

5:00 pm-9:00 am

1 stop23h 00m

Sydney Kingsford Smith

Tue 12/10

5:25 pm-11:59 pm

1 stop23h 34m

$896

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Fri 12/6

3:23 pm-9:00 am

1 stop24h 37m

Sydney Kingsford Smith

Sun 12/22

8:35 pm-5:12 am

2 stops25h 37m

$920

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Sun 3/9

6:45 pm-12:45 pm

2 stops27h 00m

Brisbane

Sat 3/22

8:05 am-12:30 pm

1 stop19h 25m

$948

ChicagoSydney

ORD - SYD

ORDSYD

Chicago O'Hare Intl

Sun 11/24

5:00 pm-7:25 am

1 stop21h 25m

Sydney Kingsford Smith

Tue 11/26

11:15 am-5:20 pm

1 stop23h 05m

$952

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Sun 12/1

4:04 pm-6:15 am

1 stop22h 11m

Brisbane

Sun 12/8

10:00 pm-5:12 am

1 stop23h 12m

$982

ChicagoCairns

ORD - CNS

ORDCNS

Chicago O'Hare Intl

Sat 2/8

2:14 pm-12:00 pm

2 stops29h 46m

Cairns

Sun 6/15

2:35 pm-5:07 am

2 stops29h 32m

$1,090

St. LouisSydney

STL - SYD

STLSYD

Lambert-St Louis

Fri 3/21

3:50 pm-8:35 am

2 stops48h 45m

Sydney Kingsford Smith

Fri 4/18

9:20 am-3:06 pm

2 stops44h 46m

$1,099

ChicagoPerth

ORD - PER

ORDPER

Chicago O'Hare Intl

Tue 2/25

3:19 pm-10:00 pm

2 stops40h 41m

Perth

Mon 3/10

10:55 pm-12:30 pm

2 stops26h 35m

$1,103

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/18

Showing 1-10 of 60 results
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Best time to book a flight from Illinois to Australia

Have a flexible travel schedule? Discover the best time to fly to Australia from Illinois with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Illinois to Australia

Get recent, data-driven insights about flights from Illinois to Australia including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Illinois to Australia?

Currently, February is the cheapest month in which you can book a flight from Illinois to Australia (average of $1,062). Flying from Illinois to Australia in December is currently the most expensive (average of $1,318). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IL to AU?

Find hourly flight availability from Illinois to Australia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 20, 2024.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Australia as you normally would.

Rainfall in Australia by month

Plan your trip to Australia by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Australia ranges from 2.0 - 5.1 inches per month. March is typically the wettest month, when rainfall can reach 5.1 in. September is typically the driest time to visit Australia when rainfall is around 2.0 in.

Temperature in Australia by month

Plan your trip to Australia by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Australia, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing Australia

Get insights into the airlines that provide service to Australia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Australia. Reviews last updated November 20, 2024.
Read reviews from past customers who have flown Qantas Airways, United Airlines and Turkish Airlines from Illinois to Australia. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Tahiti Nui
8.7
Very good
68 reviews

Entertainment

7.2

Comfort

8.0

Overall

8.7

Food

7.7

Boarding

8.5

Crew

9.0

Reviews

1 / 2

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

Air Tahiti Nui
8.7
Very good
68 reviews
Air Tahiti Nui
8.7
Very good
68 reviews

Entertainment

7.2

Comfort

8.0

Overall

8.7

Food

7.7

Boarding

8.5

Crew

9.0

Reviews

1 / 2

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

Korean Air
8.5
Very good
1,024 reviews
Air Tahiti Nui
8.7
Very good
68 reviews

Entertainment

7.2

Comfort

8.0

Overall

8.7

Food

7.7

Boarding

8.5

Crew

9.0

Reviews

1 / 2

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

EVA Air
8.4
Very good
1,308 reviews
Air Tahiti Nui
8.7
Very good
68 reviews

Entertainment

7.2

Comfort

8.0

Overall

8.7

Food

7.7

Boarding

8.5

Crew

9.0

Reviews

1 / 2

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

ANA
8.4
Very good
833 reviews
Air Tahiti Nui
8.7
Very good
68 reviews

Entertainment

7.2

Comfort

8.0

Overall

8.7

Food

7.7

Boarding

8.5

Crew

9.0

Reviews

1 / 2

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

Japan Airlines
8.3
Very good
1,460 reviews
Air Tahiti Nui
8.7
Very good
68 reviews

Entertainment

7.2

Comfort

8.0

Overall

8.7

Food

7.7

Boarding

8.5

Crew

9.0

Reviews

1 / 2

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

Related info for your journey

Find useful and relevant information for your journey from Illinois to Australia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines to fly from Illinois to Australia one-way?

    $343 is the cheapest one-way deal found within the past few days, from Qantas Airways. You may also be able to find cheap deals on American Airlines and Air Canada, with prices starting from $351 and $776, respectively.

  • Can I find deals for flights from Illinois to Australia that include hotel bookings?

    Yes. In addition to deals on Illinois to Australia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Australia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Australia.

  • Can I find deals for business class flights from Illinois to Australia?

    Yes. Cheapflights offers flight deals from Illinois to Australia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Illinois to Australia?

    Currently, February is the cheapest month in which you can book a flight from Illinois to Australia (average of $1,062). Flying from Illinois to Australia in December is currently the most expensive (average of $1,318). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 9 airlines flying from Illinois to Australia

Discover the top 9 airlines that operate flights from Illinois to Australia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,629,791 searches. Data last updated November 20, 2024.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$388Average$1,279FlexibilityNo cancel feeOn-time71%
Qantas AirwaysCheapest$618Average$1,585FlexibilityNo cancel feeOn-time74%
DeltaCheapest$853Average$984FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$916Average$1,643FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$959Average$1,403FlexibilityNo cancel feeOn-time67%
Cathay PacificCheapest$1,138Average$1,364FlexibilityNo cancel feeOn-time72%
Air New ZealandCheapest$1,181Average$1,460FlexibilityNo cancel feeOn-time78%
Singapore AirlinesCheapest$1,598Average$1,706FlexibilityNo cancel feeOn-time81%
Qatar AirwaysCheapest$1,700Average$1,747FlexibilityNo cancel feeOn-time68%
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