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Cheap flights from Illinois to Brisbane from $675

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 13/6. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BNE
31 May — 7 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Illinois to Brisbane

Enter your travel dates to find the best prices.

Cheapest flights from Illinois to Brisbane
Explore the most affordable flight options available from Illinois to Brisbane. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 May 2026.

Sat 6/614:58
STL
-
BNE
2 stops28h 22m
Qantas Airways
Sat 13/607:40
BNE
-
STL
2 stops25h 49m
Qantas Airways
Deal found 28/4$1,827
Sun 18/1006:30
STL
-
BNE
1 stop31h 30m
Qantas Airways
Sun 1/1113:10
BNE
-
STL
1 stop26h 32m
Qantas Airways
Deal found 29/4$1,842
Sun 18/1006:30
STL
-
BNE
1 stop31h 30m
Qantas Airways
Sun 8/1105:00
BNE
-
STL
2 stops26h 29m
Qantas Airways
Deal found 1/5$1,878
Sun 14/613:19
STL
-
BNE
2 stops24h 41m
American Airlines
Sun 21/607:40
BNE
-
STL
2 stops25h 52m
American Airlines
Deal found 30/4$1,903
Thu 25/613:45
STL
-
BNE
2 stops24h 15m
American Airlines
Sun 5/720:35
BNE
-
STL
2 stops26h 58m
American Airlines
Deal found 28/4$1,927
Fri 28/809:15
ORD
-
BNE
2 stops30h 50m
Air Canada
Thu 10/910:15
BNE
-
ORD
2 stops33h 46m
Air Canada
Deal found 27/4$1,955
Wed 17/615:40
ORD
-
BNE
1 stop24h 25m
Air Canada
Fri 10/710:00
BNE
-
ORD
1 stop19h 41m
Air Canada
Deal found 28/4$1,959
Sat 20/611:05
ORD
-
BNE
2 stops29h 00m
Air Canada
Thu 30/710:15
BNE
-
ORD
1 stop19h 26m
Air Canada
Deal found 27/4$1,963
Tue 20/1011:05
ORD
-
BNE
2 stops29h 00m
Air Canada
Tue 27/1009:45
BNE
-
ORD
2 stops25h 25m
Air Canada
Deal found 27/4$1,969
Wed 11/1109:15
ORD
-
BNE
2 stops31h 30m
Air Canada
Mon 23/1110:45
BNE
-
ORD
1 stop21h 53m
Air Canada
Deal found 27/4$1,973
Mon 9/1107:15
ORD
-
BNE
2 stops33h 30m
Air Canada
Wed 25/1110:45
BNE
-
ORD
1 stop19h 56m
Air Canada
Deal found 27/4$1,977
Mon 9/1110:40
ORD
-
BNE
2 stops30h 05m
Air Canada
Tue 24/1110:45
BNE
-
ORD
2 stops25h 25m
Air Canada
Deal found 27/4$1,982

Find flight deals from Illinois to Brisbane

Keep the following information in mind while searching for Illinois to Brisbane flight deals. Data was last updated 1 May 2026.

Round-trip from

$1,827

One-way from

$675

Popular in

December

Cheapest in

January

Average price

$1,713
Qantas Airways
  • Qantas Airways
  • 6/6-13/6
  • 4 total stops
  • 54h 11m total
  • Illinois to Brisbane
Search Deals
13/6
  • 13/6
  • 2 total stops
  • 34h 30m total
  • Illinois to Brisbane
Search Deals
Highest demand for flights based on searches. 0% potential increase in price ($10 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($113 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Illinois to Brisbane 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 647,157 searches. Data last updated 1 May 2026.
Use the filters below to find and compare flights from Illinois to Brisbane that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

St. LouisBrisbane

STL - BNE

STLBNE

Lambert-St Louis

Sun 18/10

06:30-05:00

1 stop31h 30m

Brisbane

Sun 1/11

05:00-17:40

2 stops27h 40m

$1,892

St. LouisBrisbane

STL - BNE

STLBNE

Lambert-St Louis

Thu 25/6

13:19-05:00

2 stops24h 41m

Brisbane

Sun 5/7

20:35-08:31

2 stops26h 56m

$1,927

St. LouisBrisbane

STL - BNE

STLBNE

Lambert-St Louis

Sat 27/6

06:35-05:00

1 stop31h 25m

Brisbane

Sun 5/7

08:45-16:28

2 stops22h 43m

$1,973

St. LouisBrisbane

STL - BNE

STLBNE

Lambert-St Louis

Thu 8/10

06:30-10:35

2 stops37h 05m

Brisbane

Sat 17/10

07:45-18:14

2 stops25h 29m

$2,048
Fastest return journey

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Thu 25/6

15:23-05:00

1 stop22h 37m

Brisbane

Sun 5/7

20:35-05:09

1 stop23h 34m

$2,216

ChicagoBrisbane

MDW - BNE

MDWBNE

Chicago Midway

Sat 20/6

06:00-10:40

3 stops37h 40m

Brisbane

Thu 30/7

11:55-11:07

3 stops38h 12m

$2,230

St. LouisBrisbane

STL - BNE

STLBNE

Lambert-St Louis

Thu 8/10

15:15-06:30

2 stops24h 15m

Brisbane

Sat 17/10

10:30-18:38

1 stop23h 08m

$2,232

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Sat 8/8

21:35-06:30

1 stop41h 55m

Brisbane

Tue 25/8

10:30-21:47

1 stop26h 17m

$2,250

St. LouisBrisbane

STL - BNE

STLBNE

Lambert-St Louis

Sat 27/6

19:23-10:30

2 stops24h 07m

Brisbane

Sun 5/7

10:30-18:17

1 stop22h 47m

$2,266

ChicagoBrisbane

ORD - BNE

ORDBNE

Chicago O'Hare Intl

Tue 7/7

15:47-10:30

2 stops27h 43m

Brisbane

Wed 22/7

10:30-21:34

1 stop26h 04m

$2,266

Flights are sorted by cheapest return flights first.

Deals found on 28/4

Showing 1-10 of 36 resultsSorted by cheapest first
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Best time to book a flight from Illinois to Brisbane

Have a flexible travel schedule? Discover the best time to fly to Brisbane from Illinois with our price prediction graph.
Estimated return 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.

Cheapflights Insights

Everything you need to know about your flight from Illinois to Brisbane

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

Currently, March is the cheapest month in which you can book a flight from Illinois to Brisbane (average of $979). Flying from Illinois to Brisbane in July is currently the most expensive (average of $1,767). 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.

How much does it cost for a return flight from Illinois to Brisbane?

Related info for your journey

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

  • What airport do you fly into for flights to Brisbane from Illinois?

    Brisbane (BNE), located 12.3 km from the city centre, is the airport you fly into when you book flights from Illinois to Brisbane.

  • How long is the flight from Illinois to Brisbane?

    Airlines like Qantas Airways, American Airlines, and United Airlines fly from Illinois to Brisbane in about 24h 15m. The time it takes to get you to your destination can typically vary by up to 7h 15m. There are 14074 km between Illinois and Brisbane. This flight may include one or multiple stops.

  • What are the most popular routes from Illinois to Brisbane?

    While some choose either Lambert-St Louis - Brisbane or Chicago Midway - Brisbane, Chicago O'Hare Intl - Brisbane is the most popular route from Illinois to Brisbane.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Illinois to Brisbane 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 Brisbane?

    Currently, March is the cheapest month in which you can book a flight from Illinois to Brisbane (average of $979). Flying from Illinois to Brisbane in July is currently the most expensive (average of $1,767). 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

Travelling to a place near Brisbane?

Book flights to Brisbane if you plan to visit one of these locations
Redcliffe
Ipswich
Caboolture

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How does Cheapflights help users find flights from Illinois to Brisbane?

When you search for this flight from Illinois to Brisbane, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Illinois to Brisbane?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Brisbane from Illinois.

Can Cheapflights find flights from Illinois to Brisbane with no change fees?

Need flexible booking options for your flight to Brisbane from Illinois? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Illinois to Brisbane become cheaper?

Yes, Cheapflights offers price alerts on Illinois to Brisbane flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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