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Cheap flights from Illinois to Melbourne Airport from $852

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 7/9. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — MEL
16 Jul — 23 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Illinois to Melbourne

Enter your travel dates to find the best prices.

Cheapest flights from Illinois to Melbourne
Explore the most affordable flight options available from Illinois to Melbourne. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 June 2026.

Sat 22/812:45
STL
-
MEL
2 stops27h 00m
American Airlines
Mon 31/809:45
MEL
-
STL
1 stop28h 14m
American Airlines
Deal found 12/6$1,534
Thu 30/719:23
STL
-
MEL
1 stop21h 52m
United Airlines
Thu 6/810:55
MEL
-
STL
1 stop22h 22m
United Airlines
Deal found 15/6$1,542
Fri 28/816:40
STL
-
MEL
2 stops24h 35m
United Airlines
Fri 4/910:55
MEL
-
STL
1 stop22h 44m
United Airlines
Deal found 16/6$1,544
Tue 20/1006:30
STL
-
MEL
1 stop32h 15m
American Airlines
Tue 3/1123:15
MEL
-
STL
2 stops26h 43m
American Airlines
Deal found 13/6$1,547
Tue 27/1006:30
STL
-
MEL
1 stop35h 00m
Qantas Airways
Wed 11/1123:15
MEL
-
STL
1 stop41h 27m
Qantas Airways
Deal found 12/6$1,549
Tue 20/1019:05
STL
-
MEL
2 stops45h 45m
Delta
Tue 3/1112:00
MEL
-
STL
2 stops29h 36m
Delta
Deal found 16/6$1,559
Sun 2/816:48
STL
-
MEL
2 stops47h 42m
United Airlines
Thu 20/810:55
MEL
-
STL
2 stops36h 44m
United Airlines
Deal found 15/6$1,569
Sat 1/819:05
STL
-
MEL
2 stops69h 25m
United Airlines
Thu 20/810:55
MEL
-
STL
2 stops36h 44m
United Airlines
Deal found 14/6$1,571
Tue 1/917:23
STL
-
MEL
2 stops47h 27m
Delta
Wed 9/910:00
MEL
-
STL
2 stops25h 35m
Delta
Deal found 14/6$1,578
Sat 1/806:37
STL
-
MEL
1 stop33h 08m
American Airlines
Thu 20/809:00
MEL
-
STL
2 stops24h 05m
American Airlines
Deal found 14/6$1,582
Thu 10/1218:17
ORD
-
MEL
2 stops29h 58m
Qantas Airways
Thu 7/123:15
MEL
-
ORD
1 stop32h 42m
Qantas Airways
Deal found 13/6$1,697
Thu 2/721:13
ORD
-
MEL
1 stop42h 32m
Multiple Airlines
Sat 25/709:45
MEL
-
ORD
1 stop35h 32m
Multiple Airlines
Deal found 12/6$1,868

Find flight deals from Illinois to Melbourne

Keep the following information in mind while searching for Illinois to Melbourne flight deals. Data was last updated 16 June 2026.

Round-trip from

$1,534

One-way from

$852

Popular in

December

Cheapest in

April

Average price

$2,045
American Airlines
  • American Airlines
  • 20/10-3/11
  • 3 total stops
  • 46h 31m total
  • Illinois to Melbourne
Search Deals
Qantas Airways
  • Qantas Airways
  • 7/9
  • 1 total stop
  • 33h 45m total
  • Illinois to Melbourne
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($375 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($68 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Illinois to Melbourne 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 16 June 2026.
Use the filters below to find and compare flights from Illinois to Melbourne Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Fri 28/8

16:40-07:30

2 stops23h 50m

Melbourne

Sat 5/9

10:55-08:39

2 stops36h 44m

$1,549

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Thu 30/7

06:00-08:15

2 stops35h 15m

Melbourne

Thu 6/8

10:55-20:43

2 stops24h 48m

$1,549

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Fri 28/8

15:35-07:30

2 stops24h 55m

Melbourne

Fri 4/9

09:30-22:00

2 stops27h 30m

$1,549

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Tue 27/10

15:45-08:50

2 stops25h 05m

Melbourne

Wed 11/11

12:00-20:49

2 stops25h 49m

$1,559

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Sat 1/8

19:05-07:30

2 stops69h 25m

Melbourne

Thu 20/8

10:55-08:39

2 stops36h 44m

$1,571

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Tue 22/9

18:55-07:50

2 stops45h 55m

Melbourne

Fri 9/10

11:00-20:37

2 stops25h 37m

$1,578

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Tue 1/9

15:13-08:15

2 stops26h 02m

Melbourne

Wed 9/9

10:55-18:39

1 stop22h 44m

$1,804

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Tue 1/9

10:53-08:15

2 stops30h 22m

Melbourne

Tue 8/9

10:55-20:38

2 stops24h 43m

$1,811

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Tue 27/10

19:06-09:00

1 stop21h 54m

Melbourne

Wed 11/11

11:30-22:06

2 stops27h 36m

$1,811

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Tue 20/10

13:29-09:15

2 stops27h 46m

Melbourne

Tue 3/11

13:00-17:53

1 stop21h 53m

$1,811

Flights are sorted by cheapest return flights first.

Deals found on 15/6

Showing 1-10 of 55 resultsSorted by cheapest first
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Best time to book a flight from Illinois to Melbourne

Have a flexible travel schedule? Discover the best time to fly to Melbourne 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 Melbourne Airport

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

Currently, November is the cheapest month in which you can book a flight from Illinois to Melbourne Airport (average of $160). Flying from Illinois to Melbourne Airport in July is currently the most expensive (average of $2,014). 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 Melbourne Airport?

How far ahead should I book a flight from Illinois to Melbourne Airport?

The best time to book flights from Illinois to Melbourne Airport is 44 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Related info for your journey

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

  • How long is the flight from Illinois to Melbourne Airport?

    Departing from Illinois to Melbourne Airport will take you 23h 50m. The distance from Illinois to Melbourne Airport is about 15255 km. This flight may include one or multiple stops.

  • What are the most popular routes from Illinois to Melbourne Airport?

    The most popular route from Illinois to Melbourne Airport is Chicago O'Hare Intl - Melbourne. You may also consider Lambert-St Louis - Melbourne or Chicago Midway - Melbourne.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Illinois to Melbourne 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 Melbourne Airport?

    Currently, November is the cheapest month in which you can book a flight from Illinois to Melbourne Airport (average of $160). Flying from Illinois to Melbourne Airport in July is currently the most expensive (average of $2,014). 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 Melbourne Airport?

Book flights to Melbourne Airport if you plan to visit one of these locations
Dandenong
Geelong
Ballarat
Apollo Bay
Tullamarine
Lorne
Shepparton
St Kilda
Phillip Island
Sorrento
Torquay
Daylesford
Mornington
Brighton

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

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Illinois to Melbourne. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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

Cheapflights helps you find that perfect flight to Melbourne from Illinois by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Illinois to Melbourne, users can toggle the no change fees filter when performing a flight search.

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

Yes! Start tracking prices for Illinois to Melbourne flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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