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Cheap flights from St. Louis to Melbourne from $983

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 16/5. 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.
American Airlines Logo
12:43 - 06:45
STL
-
MEL
26h 02m
2 stops
American Airlines Logo
23:15 - 08:58
MEL
-
STL
26h 43m
2 stops
$1,772American Airlines
Sun, 18 Oct - Sun, 1 Nov
American Airlines Logo
06:30 - 06:45
STL
-
MEL
32h 15m
1 stop
American Airlines Logo
12:00 - 23:29
MEL
-
STL
27h 29m
1 stop
$1,779American Airlines
Sun, 18 Oct - Sun, 1 Nov
United Airlines Logo
09:21 - 08:15
STL
-
MEL
31h 54m
2 stops
United Airlines Logo
10:55 - 21:21
MEL
-
STL
25h 26m
2 stops
$1,789United Airlines
Tue, 19 May - Tue, 2 Jun
American Airlines Logo
13:42 - 06:45
STL
-
MEL
26h 03m
2 stops
American Airlines Logo
09:45 - 18:30
MEL
-
STL
23h 45m
2 stops
$1,982American Airlines
Fri, 19 Jun - Fri, 26 Jun
American Airlines Logo
06:35 - 06:45
STL
-
MEL
33h 10m
1 stop
American Airlines Logo
09:45 - 23:56
MEL
-
STL
29h 11m
1 stop
$1,992American Airlines
Fri, 19 Jun - Fri, 26 Jun
American Airlines Logo
08:36 - 05:00
STL
-
MEL
29h 24m
1 stop
American Airlines Logo
14:05 - 23:56
MEL
-
STL
24h 51m
2 stops
$2,017American Airlines
Mon, 22 Jun - Wed, 1 Jul
American Airlines Logo
14:32 - 06:45
STL
-
MEL
25h 13m
2 stops
American Airlines Logo
14:30 - 23:56
MEL
-
STL
24h 26m
2 stops
$2,023American Airlines
Mon, 22 Jun - Wed, 1 Jul
Delta Logo
10:49 - 07:50
STL
-
MEL
30h 01m
2 stops
Delta Logo
10:00 - 22:18
MEL
-
STL
27h 18m
2 stops
$2,194Delta
Mon, 1 Jun - Sun, 7 Jun
United Airlines Logo
13:13 - 08:15
STL
-
MEL
28h 02m
2 stops
United Airlines Logo
10:55 - 08:34
MEL
-
STL
36h 39m
2 stops
$2,345United Airlines
Tue, 23 Jun - Wed, 1 Jul
Qantas Airways Logo
17:18 - 05:00
STL
-
MEL
20h 42m
1 stop
Qantas Airways Logo
21:00 - 23:56
MEL
-
STL
41h 56m
2 stops
$2,417Qantas Airways
Mon, 1 Jun - Sun, 7 Jun

United Airlines flights from St. Louis to Melbourne

Our best United Airlines deals on St. Louis to Melbourne flight tickets
United Airlines
19 May
STL09:21Lambert-St Louis
31h 54m
2 stops
MEL08:15Melbourne
2 June
MEL10:55Melbourne
25h 26m
2 stops
STL21:21Lambert-St Louis
$1,789
United Airlines
23 June
STL13:13Lambert-St Louis
28h 02m
2 stops
MEL08:15Melbourne
1 July
MEL10:55Melbourne
36h 39m
2 stops
STL08:34Lambert-St Louis
$2,345
United Airlines
15 June
STL16:52Lambert-St Louis
23h 38m
2 stops
MEL07:30Melbourne
22 June
MEL10:55Melbourne
40h 16m
2 stops
STL12:11Lambert-St Louis
$2,449

Air Canada flights from St. Louis to Melbourne

Our best Air Canada deals on St. Louis to Melbourne flight tickets
Air Canada
19 May
STL07:05Lambert-St Louis
37h 00m
3 stops
MEL11:05Melbourne
2 June
MEL06:00Melbourne
45h 06m
3 stops
STL12:06Lambert-St Louis
$2,466
Air Canada
15 Aug
STL08:55Lambert-St Louis
35h 10m
3 stops
MEL11:05Melbourne
19 Aug
MEL06:00Melbourne
47h 02m
3 stops
STL14:02Lambert-St Louis
$3,183

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 6 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

Sun 18/10

12:43-06:45

2 stops26h 02m

Melbourne

Sun 1/11

23:15-08:58

2 stops26h 43m

$1,772

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Sun 18/10

06:30-06:45

1 stop32h 15m

Melbourne

Sun 1/11

12:00-23:29

1 stop27h 29m

$1,779

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Tue 19/5

09:21-08:15

2 stops31h 54m

Melbourne

Tue 2/6

10:55-21:21

2 stops25h 26m

$1,789

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Fri 19/6

13:42-06:45

2 stops26h 03m

Melbourne

Fri 26/6

09:45-18:30

2 stops23h 45m

$1,982

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Fri 19/6

06:35-06:45

1 stop33h 10m

Melbourne

Fri 26/6

09:45-23:56

1 stop29h 11m

$1,992

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Mon 22/6

08:36-05:00

1 stop29h 24m

Melbourne

Wed 1/7

14:05-23:56

2 stops24h 51m

$2,017
Fastest return journey

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Mon 22/6

14:32-06:45

2 stops25h 13m

Melbourne

Wed 1/7

14:30-23:56

2 stops24h 26m

$2,023

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Mon 1/6

10:49-07:50

2 stops30h 01m

Melbourne

Sun 7/6

10:00-22:18

2 stops27h 18m

$2,194

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Tue 23/6

13:13-08:15

2 stops28h 02m

Melbourne

Wed 1/7

10:55-08:34

2 stops36h 39m

$2,345

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Mon 1/6

17:18-05:00

1 stop20h 42m

Melbourne

Sun 7/6

21:00-23:56

2 stops41h 56m

$2,417

Flights are sorted by cheapest return flights first.

Showing 1-10 of 18 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, May 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 $1,559. If you aren’t able to travel to Melbourne during the month of May, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $1,690.

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

21h 52m

Direct flights

None
The fastest flight from St. Louis to Melbourne takes 21h 52m
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 21h 52m.

  • 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