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Cheap flights from St. Louis to Melbourne from $1,692

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Melbourne departing on 8/11. 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 St. Louis to Melbourne

Cheap return flights

Enter your travel dates to find the best prices.
Qantas Airways Logo
17:11 - 05:00
STL
-
MEL
20h 49m
1 stop
Qantas Airways Logo
09:45 - 22:59
MEL
-
STL
28h 14m
1 stop
$1,709Qantas Airways
Sat, 15 Aug - Fri, 28 Aug
American Airlines Logo
10:16 - 05:00
STL
-
MEL
27h 44m
1 stop
American Airlines Logo
09:45 - 22:59
MEL
-
STL
28h 14m
1 stop
$1,712American Airlines
Wed, 19 Aug - Wed, 26 Aug
American Airlines Logo
08:48 - 05:00
STL
-
MEL
28h 12m
1 stop
American Airlines Logo
23:15 - 08:58
MEL
-
STL
26h 43m
2 stops
$1,719American Airlines
Tue, 27 Oct - Wed, 11 Nov
Qantas Airways Logo
06:00 - 06:45
STL
-
MEL
33h 45m
1 stop
Qantas Airways Logo
09:45 - 22:59
MEL
-
STL
28h 14m
1 stop
$1,721Qantas Airways
Thu, 6 Aug - Sun, 30 Aug
United Airlines Logo
19:05 - 09:30
STL
-
MEL
22h 25m
1 stop
United Airlines Logo
12:45 - 22:10
MEL
-
STL
26h 25m
1 stop
$1,728United Airlines
Tue, 27 Oct - Wed, 11 Nov
United Airlines Logo
12:59 - 08:15
STL
-
MEL
28h 16m
2 stops
United Airlines Logo
09:30 - 18:32
MEL
-
STL
24h 02m
2 stops
$1,731United Airlines
Sat, 15 Aug - Fri, 28 Aug
United Airlines Logo
13:29 - 09:15
STL
-
MEL
27h 46m
2 stops
United Airlines Logo
12:45 - 20:34
MEL
-
STL
24h 49m
2 stops
$1,734United Airlines
Tue, 20 Oct - Tue, 3 Nov
Delta Logo
19:20 - 08:50
STL
-
MEL
45h 30m
2 stops
Delta Logo
12:00 - 20:41
MEL
-
STL
25h 41m
2 stops
$1,745Delta
Tue, 20 Oct - Tue, 3 Nov
United Airlines Logo
16:39 - 09:15
STL
-
MEL
24h 36m
2 stops
United Airlines Logo
12:45 - 22:10
MEL
-
STL
26h 25m
1 stop
$1,752United Airlines
Tue, 20 Oct - Tue, 3 Nov
United Airlines Logo
13:36 - 08:15
STL
-
MEL
51h 39m
2 stops
United Airlines Logo
18:00 - 17:59
MEL
-
STL
38h 59m
2 stops
$1,794United Airlines
Sat, 12 Sep - Sat, 19 Sep

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American Airlines flights from St. Louis to Melbourne

Our best American Airlines deals on St. Louis to Melbourne flight tickets
American Airlines
19 Aug
STL10:16Lambert-St Louis
27h 44m
1 stop
MEL05:00Melbourne
26 Aug
MEL09:45Melbourne
28h 14m
1 stop
STL22:59Lambert-St Louis
$1,712
American Airlines
27 Oct
STL08:48Lambert-St Louis
28h 12m
1 stop
MEL05:00Melbourne
11 Nov
MEL23:15Melbourne
26h 43m
2 stops
STL08:58Lambert-St Louis
$1,719
American Airlines
12 Sept
STL17:00Lambert-St Louis
21h 00m
1 stop
MEL05:00Melbourne
19 Sept
MEL13:35Melbourne
19h 29m
1 stop
STL18:04Lambert-St Louis
$1,858

United Airlines flights from St. Louis to Melbourne

Our best United Airlines deals on St. Louis to Melbourne flight tickets
United Airlines
27 Oct
STL19:05Lambert-St Louis
22h 25m
1 stop
MEL09:30Melbourne
11 Nov
MEL12:45Melbourne
26h 25m
1 stop
STL22:10Lambert-St Louis
$1,728
United Airlines
15 Aug
STL12:59Lambert-St Louis
28h 16m
2 stops
MEL08:15Melbourne
28 Aug
MEL09:30Melbourne
24h 02m
2 stops
STL18:32Lambert-St Louis
$1,731
United Airlines
20 Oct
STL13:29Lambert-St Louis
27h 46m
2 stops
MEL09:15Melbourne
3 Nov
MEL12:45Melbourne
24h 49m
2 stops
STL20:34Lambert-St Louis
$1,734

momondo Fare Finder

 
Customise your flight search to find flights from St. Louis 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, momondo users made 78,305 searches. Data last updated 10 July 2026.
Use the filters below to find and compare flights from St. Louis to Melbourne that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Sat 15/8

17:11-05:00

1 stop20h 49m

Melbourne

Fri 28/8

09:45-22:59

1 stop28h 14m

$1,709

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Wed 19/8

10:16-05:00

1 stop27h 44m

Melbourne

Wed 26/8

09:45-22:59

1 stop28h 14m

$1,712

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Tue 27/10

08:48-05:00

1 stop28h 12m

Melbourne

Wed 11/11

23:15-08:58

2 stops26h 43m

$1,719

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Thu 6/8

06:00-06:45

1 stop33h 45m

Melbourne

Sun 30/8

09:45-22:59

1 stop28h 14m

$1,721
Fastest return journey

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Tue 27/10

19:05-09:30

1 stop22h 25m

Melbourne

Wed 11/11

12:45-22:10

1 stop26h 25m

$1,728

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Sat 15/8

12:59-08:15

2 stops28h 16m

Melbourne

Fri 28/8

09:30-18:32

2 stops24h 02m

$1,731

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Tue 20/10

13:29-09:15

2 stops27h 46m

Melbourne

Tue 3/11

12:45-20:34

2 stops24h 49m

$1,734

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Tue 20/10

19:20-08:50

2 stops45h 30m

Melbourne

Tue 3/11

12:00-20:41

2 stops25h 41m

$1,745

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Tue 20/10

16:39-09:15

2 stops24h 36m

Melbourne

Tue 3/11

12:45-22:10

1 stop26h 25m

$1,752

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Sat 12/9

13:36-08:15

2 stops51h 39m

Melbourne

Sat 19/9

18:00-17:59

2 stops38h 59m

$1,794

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Melbourne from

How to get the cheapest flight ticket from St. Louis to Melbourne

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between St. Louis and Melbourne?

What is the cheapest month to fly to Melbourne?

In general, April is the cheapest month to fly from St. Louis to Melbourne. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $0. If you aren’t able to travel to Melbourne during the month of April, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $1,235.

Cheap St. Louis to Melbourne flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Melbourne

Fastest flight time

20h 49m

Direct flights

None
The fastest flight from St. Louis to Melbourne takes 20h 49m
There are no direct flights from St. Louis to Melbourne. There are no popular flight routes from St. Louis to Melbourne.
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Frequently asked questions about flying from St. Louis to Melbourne

  • How far is Lambert-St Louis to Melbourne by plane?

    Lambert-St Louis and Melbourne are 15259.6 km apart from one another. A reasonable flight in good conditions will take 20h 49m.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Melbourne?

    Prices for flights from Lambert-St Louis Airport to Melbourne refresh daily.

  • How old do you have to be to fly from Lambert-St Louis Airport to Melbourne?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Melbourne.

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

    The required travel and health documents for your Melbourne 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 licence and a passport valid for six months after your intended arrival at Melbourne. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Melbourne?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from St. Louis to Melbourne for you.

Can I find flights from St. Louis to Melbourne with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for St. Louis to Melbourne flights to just show those with flexible booking policies.

How can momondo help me find flights from St. Louis to Melbourne?

momondo helps you find the best flight between St. Louis and Melbourne by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are not ready to book a flight from St. Louis to Melbourne now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Melbourne and let you know when they change.

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Find better results for your trip to Australia

Fly into one of these airports located in Melbourne

Airports listed have a maximum distance of 50.4 km from Melbourne
Melbourne Avalon Airport