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Cheap flights from Illinois to Melbourne from $736

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Melbourne departing on 8/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Illinois to Melbourne

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
4:05 pm - 11:15 pmSTL  Lambert-St Louis-AVV Melbourne Avalon
63h 10m3 stops Toronto Pearson Intl Vancouver Intl Sydney Kingsford Smith
Multiple Airlines Logo
6:00 am - 3:26 pmAVV  Melbourne Avalon-STL Lambert-St Louis
50h 26m3 stops Sydney Kingsford Smith Vancouver Intl Toronto Pearson Intl
$1,372Multiple Airlines
Tue, Oct 27 - Wed, Nov 11
Multiple Airlines Logo
4:05 pm - 11:15 pmSTL  Lambert-St Louis-AVV Melbourne Avalon
63h 10m3 stops Toronto Pearson Intl Vancouver Intl Sydney Kingsford Smith
Multiple Airlines Logo
6:00 am - 3:26 pmAVV  Melbourne Avalon-STL Lambert-St Louis
50h 26m3 stops Sydney Kingsford Smith Vancouver Intl Toronto Pearson Intl
$1,373Multiple Airlines
Tue, Oct 27 - Wed, Nov 11
Multiple Airlines Logo
3:40 pm - 4:05 pmORD  Chicago O'Hare Intl-AVV Melbourne Avalon
33h 25m2 stops Vancouver Intl Sydney Kingsford Smith
Multiple Airlines Logo
9:40 pm - 2:43 pmAVV  Melbourne Avalon-ORD Chicago O'Hare Intl
33h 03m2 stops Brisbane Vancouver Intl
$1,452Multiple Airlines
Sun, Sep 27 - Thu, Oct 15
Multiple Airlines Logo
2:40 pm - 2:10 pmSTL  Lambert-St Louis-AVV Melbourne Avalon
31h 30m3 stops Toronto Pearson Intl Vancouver Intl Sydney Kingsford Smith
Multiple Airlines Logo
6:00 am - 3:26 pmAVV  Melbourne Avalon-STL Lambert-St Louis
50h 26m3 stops Sydney Kingsford Smith Vancouver Intl Toronto Pearson Intl
$1,499Multiple Airlines
Tue, Oct 20 - Tue, Nov 3
Multiple Airlines Logo
2:40 pm - 2:10 pmSTL  Lambert-St Louis-AVV Melbourne Avalon
31h 30m3 stops Toronto Pearson Intl Vancouver Intl Sydney Kingsford Smith
Multiple Airlines Logo
6:00 am - 3:26 pmAVV  Melbourne Avalon-STL Lambert-St Louis
50h 26m3 stops Sydney Kingsford Smith Vancouver Intl Toronto Pearson Intl
$1,500Multiple Airlines
Tue, Oct 20 - Tue, Nov 3
Multiple Airlines Logo
3:40 pm - 8:05 pmORD  Chicago O'Hare Intl-AVV Melbourne Avalon
37h 25m2 stops Vancouver Intl Brisbane
Multiple Airlines Logo
4:40 pm - 2:43 pmAVV  Melbourne Avalon-ORD Chicago O'Hare Intl
37h 03m2 stops Sydney Kingsford Smith Vancouver Intl
$1,617Multiple Airlines
Sun, Sep 6 - Tue, Sep 22
Multiple Airlines Logo
8:55 am - 2:10 pmSTL  Lambert-St Louis-AVV Melbourne Avalon
38h 15m3 stops Toronto Pearson Intl Vancouver Intl Sydney Kingsford Smith
Multiple Airlines Logo
6:00 am - 8:00 pmAVV  Melbourne Avalon-STL Lambert-St Louis
30h 00m3 stops Sydney Kingsford Smith Vancouver Intl Toronto Pearson Intl
$1,709Multiple Airlines
Wed, Sep 23 - Sat, Oct 24
Multiple Airlines Logo
2:40 pm - 4:05 pmSTL  Lambert-St Louis-AVV Melbourne Avalon
34h 25m3 stops Toronto Pearson Intl Vancouver Intl Sydney Kingsford Smith
Multiple Airlines Logo
8:55 pm - 2:00 pmAVV  Melbourne Avalon-STL Lambert-St Louis
56h 05m3 stops Sydney Kingsford Smith Vancouver Intl Toronto Pearson Intl
$1,739Multiple Airlines
Tue, Sep 8 - Mon, Sep 28
Multiple Airlines Logo
3:20 pm - 11:15 pmORD  Chicago O'Hare Intl-AVV Melbourne Avalon
38h 55m2 stops Los Angeles Sydney Kingsford Smith
Multiple Airlines Logo
6:00 am - 4:51 pmAVV  Melbourne Avalon-ORD Chicago O'Hare Intl
27h 51m2 stops Sydney Kingsford Smith Los Angeles
$1,810Multiple Airlines
Tue, Dec 8 - Tue, Dec 29
Multiple Airlines Logo
6:55 pm - 2:05 pmORD  Chicago O'Hare Intl-AVV Melbourne Avalon
26h 10m2 stops Los Angeles Sydney Kingsford Smith
Multiple Airlines Logo
10:20 am - 6:35 pmAVV  Melbourne Avalon-ORD Chicago O'Hare Intl
25h 15m2 stops Sydney Kingsford Smith Dallas/Fort Worth
$1,831Multiple Airlines
Sun, Jan 24 - Fri, Feb 5

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Qantas Airways flights from Illinois to Melbourne Avalon Airport

Our best Qantas Airways deals on Illinois to Melbourne Avalon Airport flight tickets
Qantas Airways
Feb 5
ORD5:53 pmChicago O'Hare Intl
27h 12m
2 stops
AVV2:05 pmMelbourne Avalon
Feb 16
AVV6:00 amMelbourne Avalon
26h 59m
2 stops
ORD3:59 pmChicago O'Hare Intl
$2,156
Qantas Airways
Oct 27
STL6:04 amLambert-St Louis
40h 01m
2 stops
AVV2:05 pmMelbourne Avalon
Nov 11
AVV6:00 amMelbourne Avalon
34h 45m
2 stops
STL11:45 pmLambert-St Louis
$2,230
Qantas Airways
Oct 27
STL6:04 amLambert-St Louis
46h 16m
2 stops
AVV8:20 pmMelbourne Avalon
Nov 11
AVV10:20 amMelbourne Avalon
24h 55m
2 stops
STL6:15 pmLambert-St Louis
$2,257

momondo Fare Finder

 
Customize your flight search to find flights from Illinois to Melbourne Avalon Airport 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, momondo users made 832,500 searches. Data last updated August 11, 2026.
Use the filters below to find and compare flights from Illinois to Melbourne Avalon Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisMelbourne

STL Lambert-St Louis - AVV Melbourne Avalon

STLAVV

Lambert-St Louis

Tue 10/27

4:05 pm-11:15 pm

3 stops63h 10m

Melbourne Avalon

Wed 11/11

6:00 am-3:26 pm

3 stops50h 26m

$1,372

St. LouisMelbourne

STL Lambert-St Louis - AVV Melbourne Avalon

STLAVV

Lambert-St Louis

Tue 10/27

4:05 pm-11:15 pm

3 stops63h 10m

Melbourne Avalon

Wed 11/11

6:00 am-3:26 pm

3 stops50h 26m

$1,373

ChicagoMelbourne

ORD Chicago O'Hare Intl - AVV Melbourne Avalon

ORDAVV

Chicago O'Hare Intl

Sun 9/27

3:40 pm-4:05 pm

2 stops33h 25m

Melbourne Avalon

Thu 10/15

9:40 pm-2:43 pm

2 stops33h 03m

$1,452

St. LouisMelbourne

STL Lambert-St Louis - AVV Melbourne Avalon

STLAVV

Lambert-St Louis

Tue 10/20

2:40 pm-2:10 pm

3 stops31h 30m

Melbourne Avalon

Tue 11/3

6:00 am-3:26 pm

3 stops50h 26m

$1,499

St. LouisMelbourne

STL Lambert-St Louis - AVV Melbourne Avalon

STLAVV

Lambert-St Louis

Tue 10/20

2:40 pm-2:10 pm

3 stops31h 30m

Melbourne Avalon

Tue 11/3

6:00 am-3:26 pm

3 stops50h 26m

$1,500

ChicagoMelbourne

ORD Chicago O'Hare Intl - AVV Melbourne Avalon

ORDAVV

Chicago O'Hare Intl

Sun 9/6

3:40 pm-8:05 pm

2 stops37h 25m

Melbourne Avalon

Tue 9/22

4:40 pm-2:43 pm

2 stops37h 03m

$1,617

St. LouisMelbourne

STL Lambert-St Louis - AVV Melbourne Avalon

STLAVV

Lambert-St Louis

Wed 9/23

8:55 am-2:10 pm

3 stops38h 15m

Melbourne Avalon

Sat 10/24

6:00 am-8:00 pm

3 stops30h 00m

$1,709

St. LouisMelbourne

STL Lambert-St Louis - AVV Melbourne Avalon

STLAVV

Lambert-St Louis

Tue 9/8

2:40 pm-4:05 pm

3 stops34h 25m

Melbourne Avalon

Mon 9/28

8:55 pm-2:00 pm

3 stops56h 05m

$1,739

ChicagoMelbourne

ORD Chicago O'Hare Intl - AVV Melbourne Avalon

ORDAVV

Chicago O'Hare Intl

Tue 12/8

3:20 pm-11:15 pm

2 stops38h 55m

Melbourne Avalon

Tue 12/29

6:00 am-4:51 pm

2 stops27h 51m

$1,810
Quickest round-trip

ChicagoMelbourne

ORD Chicago O'Hare Intl - AVV Melbourne Avalon

ORDAVV

Chicago O'Hare Intl

Sun 1/24

6:55 pm-2:05 pm

2 stops26h 10m

Melbourne Avalon

Fri 2/5

10:20 am-6:35 pm

2 stops25h 15m

$1,831

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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Cheap Illinois to Melbourne Avalon Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to Melbourne Avalon Airport

Fastest flight time

26h 10m

Direct flights

None
The fastest flight from Illinois to Melbourne Avalon Airport takes 26h 10m
There are no direct flights from Illinois to Melbourne Avalon Airport. There are no popular flight routes from Illinois to Melbourne Avalon Airport.
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Frequently asked questions about flying from Illinois to Melbourne Avalon Airport

  • When did momondo last update prices for flights from Illinois to Melbourne Avalon Airport?

    Prices for flights from Illinois to Melbourne Avalon Airport refresh daily.

  • How old do you have to be to fly from Illinois to Melbourne Avalon Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Illinois to Melbourne Avalon Airport.

  • What documentation or ID do you need to fly to Melbourne Avalon Airport?

    The required travel and health documents for your Melbourne Avalon Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Melbourne Avalon Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Frequently asked questions about flying from Illinois to Melbourne Avalon Airport

  • How do I get Price Alerts for flights from Illinois to Melbourne Avalon Airport?

    Confirm your travel details to search for the latest offers for flights from Illinois to Melbourne Avalon Airport. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

  • How can I save money on flights from Illinois to Melbourne Avalon Airport with momondo?

    By using tools like our “Price Calendar”, you can see the best day to fly round-trip for your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

  • How does momondo find its flight prices?

    momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

Why use momondo?

Why should I use momondo to find a flight deal from Illinois to Melbourne?

Finding the right flight to Melbourne from Illinois is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Melbourne quick and easy, saving you time and money.

Can I find flights from Illinois to Melbourne with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Melbourne from Illinois with this policy.

How can momondo help me find flights from Illinois to Melbourne?

Once all potential Illinois to Melbourne flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Illinois to Melbourne right now. Can momondo alert me if prices change?

Price alerts on flights to Melbourne from Illinois are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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