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Cheap flights from St. Louis to Melbourne from $819

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 21/8. 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.
American Airlines Logo
17:11 - 09:30
STL
-
MEL
24h 19m
2 stops
American Airlines Logo
23:15 - 08:10
MEL
-
STL
25h 55m
2 stops
$1,520American Airlines
Mon, 26 Oct - Mon, 9 Nov
Qantas Airways Logo
06:30 - 09:30
STL
-
MEL
35h 00m
1 stop
Qantas Airways Logo
13:55 - 12:37
MEL
-
STL
39h 42m
2 stops
$1,521Qantas Airways
Mon, 26 Oct - Mon, 9 Nov
American Airlines Logo
06:30 - 09:30
STL
-
MEL
35h 00m
1 stop
American Airlines Logo
23:15 - 08:58
MEL
-
STL
26h 43m
2 stops
$1,533American Airlines
Mon, 26 Oct - Mon, 9 Nov
Delta Logo
13:30 - 08:50
STL
-
MEL
27h 20m
2 stops
Delta Logo
12:00 - 23:39
MEL
-
STL
28h 39m
2 stops
$1,547Delta
Mon, 26 Oct - Mon, 9 Nov
American Airlines Logo
19:21 - 10:20
STL
-
MEL
23h 59m
2 stops
American Airlines Logo
09:45 - 22:12
MEL
-
STL
27h 27m
1 stop
$1,554American Airlines
Sat, 27 Jun - Sat, 4 Jul
United Airlines Logo
19:23 - 08:15
STL
-
MEL
21h 52m
1 stop
United Airlines Logo
10:00 - 18:17
MEL
-
STL
47h 17m
2 stops
$1,559United Airlines
Wed, 10 Jun - Tue, 16 Jun
United Airlines Logo
13:38 - 07:30
STL
-
MEL
26h 52m
2 stops
United Airlines Logo
10:00 - 18:17
MEL
-
STL
47h 17m
2 stops
$1,565United Airlines
Wed, 10 Jun - Tue, 16 Jun
United Airlines Logo
08:30 - 09:00
STL
-
MEL
32h 30m
1 stop
United Airlines Logo
13:00 - 22:00
MEL
-
STL
26h 00m
1 stop
$1,788United Airlines
Mon, 26 Oct - Mon, 9 Nov
American Airlines Logo
13:19 - 05:00
STL
-
MEL
24h 41m
1 stop
American Airlines Logo
13:35 - 21:37
MEL
-
STL
23h 02m
1 stop
$1,933American Airlines
Mon, 22 Jun - Mon, 29 Jun
American Airlines Logo
13:19 - 06:45
STL
-
MEL
26h 26m
2 stops
American Airlines Logo
13:35 - 18:30
MEL
-
STL
19h 55m
1 stop
$1,939American Airlines
Mon, 22 Jun - Mon, 29 Jun

Qatar Airways flights from St. Louis to Melbourne

Our best Qatar Airways deals on St. Louis to Melbourne flight tickets
Qatar Airways
3 July
STL06:37Lambert-St Louis
43h 13m
2 stops
MEL16:50Melbourne
5 July
MEL22:45Melbourne
40h 14m
2 stops
STL23:59Lambert-St Louis
$3,163
Qatar Airways
3 July
STL06:37Lambert-St Louis
43h 13m
2 stops
MEL16:50Melbourne
5 July
MEL22:45Melbourne
39h 08m
2 stops
STL22:53Lambert-St Louis
$3,219
Qatar Airways
3 July
STL06:37Lambert-St Louis
43h 13m
2 stops
MEL16:50Melbourne
5 July
MEL22:45Melbourne
39h 08m
2 stops
STL22:53Lambert-St Louis
$3,226

United Airlines flights from St. Louis to Melbourne

Our best United Airlines deals on St. Louis to Melbourne flight tickets
United Airlines
21 May
STL19:23Lambert-St Louis
21h 52m
1 stop
MEL08:15Melbourne
4 June
MEL10:55Melbourne
22h 22m
1 stop
STL18:17Lambert-St Louis
$1,530
United Airlines
21 May
STL08:35Lambert-St Louis
32h 40m
2 stops
MEL08:15Melbourne
4 June
MEL10:55Melbourne
26h 50m
2 stops
STL22:45Lambert-St Louis
$1,535
United Airlines
10 June
STL19:23Lambert-St Louis
21h 52m
1 stop
MEL08:15Melbourne
16 June
MEL10:00Melbourne
47h 17m
2 stops
STL18:17Lambert-St Louis
$1,559

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 18 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 26/10

17:11-09:30

2 stops24h 19m

Melbourne

Mon 9/11

23:15-08:10

2 stops25h 55m

$1,520

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Mon 26/10

06:30-09:30

1 stop35h 00m

Melbourne

Mon 9/11

13:55-12:37

2 stops39h 42m

$1,521

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Mon 26/10

06:30-09:30

1 stop35h 00m

Melbourne

Mon 9/11

23:15-08:58

2 stops26h 43m

$1,533

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Mon 26/10

13:30-08:50

2 stops27h 20m

Melbourne

Mon 9/11

12:00-23:39

2 stops28h 39m

$1,547

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Sat 27/6

19:21-10:20

2 stops23h 59m

Melbourne

Sat 4/7

09:45-22:12

1 stop27h 27m

$1,554

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Wed 10/6

19:23-08:15

1 stop21h 52m

Melbourne

Tue 16/6

10:00-18:17

2 stops47h 17m

$1,559

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Wed 10/6

13:38-07:30

2 stops26h 52m

Melbourne

Tue 16/6

10:00-18:17

2 stops47h 17m

$1,565

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Mon 26/10

08:30-09:00

1 stop32h 30m

Melbourne

Mon 9/11

13:00-22:00

1 stop26h 00m

$1,788

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Mon 22/6

13:19-05:00

1 stop24h 41m

Melbourne

Mon 29/6

13:35-21:37

1 stop23h 02m

$1,932
Fastest return journey

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Mon 22/6

13:19-06:45

2 stops26h 26m

Melbourne

Mon 29/6

13:35-18:30

1 stop19h 55m

$1,939

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, 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 May is also cheap. Prices for this month can be found on momondo for an average of $1,563.

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

35h 14m

Direct flights

None
The fastest flight from St. Louis to Melbourne takes 35h 14m
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 35h 14m.

  • 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