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Cheap flights from St. Louis to Melbourne from $758

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 19/5. 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.
Multiple Airlines Logo
14:15 - 11:20
STL
-
MEL
30h 05m
3 stops
Multiple Airlines Logo
20:50 - 20:09
MEL
-
STL
38h 19m
3 stops
$1,717Multiple Airlines
Mon, 4 May - Wed, 20 May
Air Canada Logo
14:15 - 11:35
STL
-
MEL
30h 20m
3 stops
Air Canada Logo
20:30 - 20:09
MEL
-
STL
38h 39m
3 stops
$1,749Air Canada
Mon, 4 May - Wed, 20 May
Multiple Airlines Logo
18:11 - 19:20
STL
-
MEL
34h 09m
2 stops
Multiple Airlines Logo
07:30 - 21:42
MEL
-
STL
29h 12m
2 stops
$1,785Multiple Airlines
Sat, 16 May - Sat, 23 May
Air Canada Logo
07:05 - 11:05
STL
-
MEL
37h 00m
3 stops
Air Canada Logo
20:45 - 12:06
MEL
-
STL
54h 21m
3 stops
$2,011Air Canada
Sun, 17 May - Sun, 24 May
Multiple Airlines Logo
08:55 - 11:05
STL
-
MEL
35h 10m
3 stops
Multiple Airlines Logo
20:50 - 20:00
MEL
-
STL
38h 10m
3 stops
$2,015Multiple Airlines
Tue, 1 Sep - Tue, 15 Sep
Multiple Airlines Logo
07:05 - 11:35
STL
-
MEL
37h 30m
3 stops
Multiple Airlines Logo
09:45 - 23:59
MEL
-
STL
29h 14m
1 stop
$2,022Multiple Airlines
Mon, 4 May - Wed, 20 May
Multiple Airlines Logo
08:55 - 11:35
STL
-
MEL
35h 40m
2 stops
Multiple Airlines Logo
06:00 - 20:00
MEL
-
STL
29h 00m
2 stops
$2,066Multiple Airlines
Tue, 1 Sep - Tue, 15 Sep
Air Canada Logo
07:05 - 11:05
STL
-
MEL
37h 00m
3 stops
Air Canada Logo
06:00 - 20:09
MEL
-
STL
29h 09m
3 stops
$2,070Air Canada
Sat, 16 May - Sat, 23 May
Air Canada Logo
07:05 - 11:05
STL
-
MEL
37h 00m
3 stops
Air Canada Logo
06:00 - 20:09
MEL
-
STL
29h 09m
3 stops
$2,073Air Canada
Wed, 20 May - Wed, 27 May
Qantas Airways Logo
15:38 - 05:00
STL
-
MEL
22h 22m
1 stop
Qantas Airways Logo
09:45 - 23:59
MEL
-
STL
29h 14m
1 stop
$2,117Qantas Airways
Mon, 4 May - Wed, 20 May

United Airlines flights from St. Louis to Melbourne

Our best United Airlines deals on St. Louis to Melbourne flight tickets
United Airlines
17 May
STL19:06Lambert-St Louis
22h 09m
1 stop
MEL08:15Melbourne
24 May
MEL10:55Melbourne
22h 22m
1 stop
STL18:17Lambert-St Louis
$2,141
United Airlines
4 May
STL15:20Lambert-St Louis
25h 55m
2 stops
MEL08:15Melbourne
20 May
MEL10:55Melbourne
22h 27m
1 stop
STL18:22Lambert-St Louis
$2,143
United Airlines
4 May
STL19:06Lambert-St Louis
22h 09m
1 stop
MEL08:15Melbourne
20 May
MEL09:30Melbourne
22h 09m
2 stops
STL16:39Lambert-St Louis
$2,148

Air Canada flights from St. Louis to Melbourne

Our best Air Canada deals on St. Louis to Melbourne flight tickets
Air Canada
4 May
STL14:15Lambert-St Louis
30h 20m
3 stops
MEL11:35Melbourne
20 May
MEL20:30Melbourne
38h 39m
3 stops
STL20:09Lambert-St Louis
$1,749
Air Canada
17 May
STL07:05Lambert-St Louis
37h 00m
3 stops
MEL11:05Melbourne
24 May
MEL20:45Melbourne
54h 21m
3 stops
STL12:06Lambert-St Louis
$2,011
Air Canada
16 May
STL07:05Lambert-St Louis
37h 00m
3 stops
MEL11:05Melbourne
23 May
MEL06:00Melbourne
29h 09m
3 stops
STL20:09Lambert-St Louis
$2,070

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 5 April 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 4/5

14:15-11:20

3 stops30h 05m

Melbourne

Wed 20/5

20:50-20:09

3 stops38h 19m

$1,717

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Mon 4/5

14:15-11:35

3 stops30h 20m

Melbourne

Wed 20/5

20:30-20:09

3 stops38h 39m

$1,749

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Sat 16/5

18:11-19:20

2 stops34h 09m

Melbourne

Sat 23/5

07:30-21:42

2 stops29h 12m

$1,785

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Sun 17/5

07:05-11:05

3 stops37h 00m

Melbourne

Sun 24/5

20:45-12:06

3 stops54h 21m

$2,011

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Tue 1/9

08:55-11:05

3 stops35h 10m

Melbourne

Tue 15/9

20:50-20:00

3 stops38h 10m

$2,015

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Mon 4/5

07:05-11:35

3 stops37h 30m

Melbourne

Wed 20/5

09:45-23:59

1 stop29h 14m

$2,022

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Tue 1/9

08:55-11:35

2 stops35h 40m

Melbourne

Tue 15/9

06:00-20:00

2 stops29h 00m

$2,066

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Sat 16/5

07:05-11:05

3 stops37h 00m

Melbourne

Sat 23/5

06:00-20:09

3 stops29h 09m

$2,070

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Wed 20/5

07:05-11:05

3 stops37h 00m

Melbourne

Wed 27/5

06:00-20:09

3 stops29h 09m

$2,073
Fastest return journey

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Mon 4/5

15:38-05:00

1 stop22h 22m

Melbourne

Wed 20/5

09:45-23:59

1 stop29h 14m

$2,117

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 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 $1,673. If you aren’t able to travel to Melbourne during the month of May, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $1,867.

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 27m

Direct flights

None
The fastest flight from St. Louis to Melbourne takes 21h 27m
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 27m.

  • 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