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Cheap flights from St. Louis to Melbourne from $794

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 25/9. 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.
American Airlines Logo
12:45 - 06:45
STL
-
MEL
27h 00m
2 stops
American Airlines Logo
09:45 - 22:59
MEL
-
STL
28h 14m
1 stop
$1,728American Airlines
Sat, 15 Aug - Sat, 29 Aug
American Airlines Logo
12:45 - 06:45
STL
-
MEL
27h 00m
2 stops
American Airlines Logo
09:45 - 18:57
MEL
-
STL
24h 12m
2 stops
$1,731American Airlines
Sat, 8 Aug - Sat, 22 Aug
American Airlines Logo
06:00 - 06:45
STL
-
MEL
33h 45m
1 stop
American Airlines Logo
09:45 - 22:59
MEL
-
STL
28h 14m
1 stop
$1,735American Airlines
Sat, 15 Aug - Sat, 29 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
$1,738United Airlines
Tue, 27 Oct - Wed, 11 Nov
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
$1,744United Airlines
Tue, 20 Oct - Tue, 3 Nov
United Airlines Logo
19:23 - 08:15
STL
-
MEL
21h 52m
1 stop
United Airlines Logo
09:30 - 22:00
MEL
-
STL
27h 30m
2 stops
$1,745United Airlines
Sun, 9 Aug - Sun, 16 Aug
Multiple Airlines Logo
08:42 - 08:15
STL
-
MEL
32h 33m
1 stop
Multiple Airlines Logo
10:55 - 18:39
MEL
-
STL
22h 44m
1 stop
$1,809Multiple Airlines
Wed, 26 Aug - Mon, 7 Sep
Multiple Airlines Logo
13:36 - 10:55
STL
-
MEL
29h 19m
3 stops
Multiple Airlines Logo
12:10 - 22:20
MEL
-
STL
27h 10m
2 stops
$2,048Multiple Airlines
Tue, 20 Oct - Tue, 3 Nov
Multiple Airlines Logo
08:55 - 12:35
STL
-
MEL
35h 40m
3 stops
Multiple Airlines Logo
07:25 - 15:26
MEL
-
STL
49h 01m
3 stops
$2,109Multiple Airlines
Tue, 20 Oct - Tue, 3 Nov
Multiple Airlines Logo
08:55 - 11:05
STL
-
MEL
35h 10m
3 stops
Multiple Airlines Logo
20:50 - 20:24
MEL
-
STL
38h 34m
3 stops
$2,111Multiple Airlines
Sat, 15 Aug - Sat, 29 Aug

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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
15 Aug
STL12:45Lambert-St Louis
27h 00m
2 stops
MEL06:45Melbourne
29 Aug
MEL09:45Melbourne
28h 14m
1 stop
STL22:59Lambert-St Louis
$1,728
American Airlines
8 Aug
STL12:45Lambert-St Louis
27h 00m
2 stops
MEL06:45Melbourne
22 Aug
MEL09:45Melbourne
24h 12m
2 stops
STL18:57Lambert-St Louis
$1,731
American Airlines
15 Aug
STL06:00Lambert-St Louis
33h 45m
1 stop
MEL06:45Melbourne
29 Aug
MEL09:45Melbourne
28h 14m
1 stop
STL22:59Lambert-St Louis
$1,735

Qantas Airways flights from St. Louis to Melbourne

Our best Qantas Airways deals on St. Louis to Melbourne flight tickets
Qantas Airways
12 Aug
STL12:45Lambert-St Louis
25h 15m
1 stop
MEL05:00Melbourne
19 Aug
MEL09:45Melbourne
28h 14m
1 stop
STL22:59Lambert-St Louis
$2,319
Qantas Airways
25 Aug
STL12:45Lambert-St Louis
27h 00m
2 stops
MEL06:45Melbourne
8 Sept
MEL09:45Melbourne
28h 14m
1 stop
STL22:59Lambert-St Louis
$2,327
Qantas Airways
13 Dec
STL06:55Lambert-St Louis
33h 35m
1 stop
MEL09:30Melbourne
5 Jan
MEL06:45Melbourne
34h 06m
2 stops
STL23:51Lambert-St Louis
$2,833

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 29 June 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

12:45-06:45

2 stops27h 00m

Melbourne

Sat 29/8

09:45-22:59

1 stop28h 14m

$1,728

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Sat 8/8

12:45-06:45

2 stops27h 00m

Melbourne

Sat 22/8

09:45-18:57

2 stops24h 12m

$1,731

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Sat 15/8

06:00-06:45

1 stop33h 45m

Melbourne

Sat 29/8

09:45-22:59

1 stop28h 14m

$1,735
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

$1,738

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

$1,744

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Sun 9/8

19:23-08:15

1 stop21h 52m

Melbourne

Sun 16/8

09:30-22:00

2 stops27h 30m

$1,745

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Wed 26/8

08:42-08:15

1 stop32h 33m

Melbourne

Mon 7/9

10:55-18:39

1 stop22h 44m

$1,809

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Tue 20/10

13:36-10:55

3 stops29h 19m

Melbourne

Tue 3/11

12:10-22:20

2 stops27h 10m

$2,048

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Tue 20/10

08:55-12:35

3 stops35h 40m

Melbourne

Tue 3/11

07:25-15:26

3 stops49h 01m

$2,109

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Sat 15/8

08:55-11:05

3 stops35h 10m

Melbourne

Sat 29/8

20:50-20:24

3 stops38h 34m

$2,111

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 $1,242.

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

22h 25m

Direct flights

None
The fastest flight from St. Louis to Melbourne takes 22h 25m
There are no direct flights from St. Louis to Melbourne. There are no popular flight routes from St. Louis to Melbourne.
Search flight deals

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 22h 25m.

  • 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