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Cheap flights from St. Louis to Melbourne from $821

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 22/8. 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

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Find the cheapest flights from St. Louis to Melbourne

Cheap return flights

Enter your travel dates to find the best prices.
Qantas Airways Logo
06:35 - 06:45
STL
-
MEL
33h 10m
1 stop
Qantas Airways Logo
09:45 - 23:59
MEL
-
STL
29h 14m
1 stop
$1,443Qantas Airways
Mon, 8 Jun - Fri, 31 Jul
American Airlines Logo
07:00 - 05:00
STL
-
MEL
31h 00m
1 stop
American Airlines Logo
13:35 - 21:49
MEL
-
STL
23h 14m
1 stop
$1,515American Airlines
Sat, 4 Jul - Sat, 11 Jul
American Airlines Logo
15:33 - 09:30
STL
-
MEL
25h 57m
2 stops
American Airlines Logo
23:15 - 08:58
MEL
-
STL
26h 43m
2 stops
$1,521American Airlines
Tue, 27 Oct - Wed, 11 Nov
American Airlines Logo
12:43 - 06:45
STL
-
MEL
26h 02m
2 stops
American Airlines Logo
12:00 - 16:40
MEL
-
STL
21h 40m
1 stop
$1,522American Airlines
Tue, 20 Oct - Tue, 3 Nov
American Airlines Logo
06:30 - 09:30
STL
-
MEL
35h 00m
1 stop
American Airlines Logo
12:00 - 22:29
MEL
-
STL
27h 29m
1 stop
$1,526American Airlines
Mon, 26 Oct - Sun, 8 Nov
American Airlines Logo
06:30 - 06:45
STL
-
MEL
32h 15m
1 stop
American Airlines Logo
12:00 - 22:29
MEL
-
STL
27h 29m
1 stop
$1,528American Airlines
Tue, 20 Oct - Tue, 3 Nov
American Airlines Logo
06:30 - 09:30
STL
-
MEL
35h 00m
1 stop
American Airlines Logo
23:15 - 08:10
MEL
-
STL
25h 55m
2 stops
$1,533American Airlines
Mon, 26 Oct - Mon, 9 Nov
Qantas Airways Logo
06:30 - 09:30
STL
-
MEL
35h 00m
1 stop
Qantas Airways Logo
23:15 - 23:42
MEL
-
STL
41h 27m
1 stop
$1,537Qantas Airways
Tue, 27 Oct - Wed, 11 Nov
Qantas Airways Logo
15:33 - 05:00
STL
-
MEL
21h 27m
1 stop
Qantas Airways Logo
23:15 - 23:42
MEL
-
STL
41h 27m
1 stop
$1,571Qantas Airways
Tue, 27 Oct - Wed, 11 Nov
Qantas Airways Logo
06:30 - 06:45
STL
-
MEL
32h 15m
1 stop
Qantas Airways Logo
23:15 - 23:42
MEL
-
STL
41h 27m
1 stop
$1,603Qantas Airways
Wed, 21 Oct - Wed, 4 Nov

United Airlines flights from St. Louis to Melbourne

Our best United Airlines deals on St. Louis to Melbourne flight tickets
United Airlines
22 Aug
STL16:40Lambert-St Louis
24h 35m
2 stops
MEL08:15Melbourne
8 Sept
MEL10:55Melbourne
27h 45m
2 stops
STL23:40Lambert-St Louis
$1,795
United Airlines
22 Aug
STL15:35Lambert-St Louis
25h 40m
2 stops
MEL08:15Melbourne
8 Sept
MEL07:15Melbourne
24h 19m
3 stops
STL16:34Lambert-St Louis
$2,319
United Airlines
7 July
STL19:23Lambert-St Louis
21h 52m
1 stop
MEL08:15Melbourne
14 July
MEL10:55Melbourne
22h 22m
1 stop
STL18:17Lambert-St Louis
$2,455

American Airlines flights from St. Louis to Melbourne

Our best American Airlines deals on St. Louis to Melbourne flight tickets
American Airlines
4 July
STL07:00Lambert-St Louis
31h 00m
1 stop
MEL05:00Melbourne
11 July
MEL13:35Melbourne
23h 14m
1 stop
STL21:49Lambert-St Louis
$1,515
American Airlines
27 Oct
STL15:33Lambert-St Louis
25h 57m
2 stops
MEL09:30Melbourne
11 Nov
MEL23:15Melbourne
26h 43m
2 stops
STL08:58Lambert-St Louis
$1,520
American Airlines
20 Oct
STL12:43Lambert-St Louis
26h 02m
2 stops
MEL06:45Melbourne
3 Nov
MEL12:00Melbourne
21h 40m
1 stop
STL16:40Lambert-St Louis
$1,522

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 25 May 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

Mon 8/6

06:35-06:45

1 stop33h 10m

Melbourne

Fri 31/7

09:45-23:59

1 stop29h 14m

$1,443

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Sat 4/7

07:00-05:00

1 stop31h 00m

Melbourne

Sat 11/7

13:35-21:49

1 stop23h 14m

$1,515

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Tue 27/10

15:33-09:30

2 stops25h 57m

Melbourne

Wed 11/11

23:15-08:58

2 stops26h 43m

$1,520
Fastest return journey

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Tue 20/10

12:43-06:45

2 stops26h 02m

Melbourne

Tue 3/11

12:00-16:40

1 stop21h 40m

$1,522

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Mon 26/10

06:30-09:30

1 stop35h 00m

Melbourne

Sun 8/11

12:00-22:29

1 stop27h 29m

$1,526

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Tue 20/10

06:30-06:45

1 stop32h 15m

Melbourne

Tue 3/11

12:00-22:29

1 stop27h 29m

$1,528

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Mon 26/10

06:30-09:30

1 stop35h 00m

Melbourne

Mon 9/11

23:15-08:10

2 stops25h 55m

$1,533

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Tue 27/10

06:30-09:30

1 stop35h 00m

Melbourne

Wed 11/11

23:15-23:42

1 stop41h 27m

$1,537

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Tue 27/10

15:33-05:00

1 stop21h 27m

Melbourne

Wed 11/11

23:15-23:42

1 stop41h 27m

$1,571

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Wed 21/10

06:30-06:45

1 stop32h 15m

Melbourne

Wed 4/11

23:15-23:42

1 stop41h 27m

$1,603

Flights are sorted by cheapest return flights first.

Showing 1-10 of 12 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 $1,201.

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

24h 35m

Direct flights

None
The fastest flight from St. Louis to Melbourne takes 24h 35m
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 24h 35m.

  • 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