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Cheap flights from St. Louis to Melbourne from $764

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 8/5. 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.
Qantas Airways Logo
18:50 - 22:45
STL
-
MEL
35h 55m
2 stops
Qantas Airways Logo
09:45 - 23:58
MEL
-
STL
30h 13m
1 stop
$1,314Qantas Airways
Wed, 25 Mar - Wed, 1 Apr
Qantas Airways Logo
18:08 - 08:20
STL
-
MEL
46h 12m
2 stops
Qantas Airways Logo
09:45 - 23:58
MEL
-
STL
30h 13m
1 stop
$1,539Qantas Airways
Tue, 24 Mar - Tue, 31 Mar
Qantas Airways Logo
11:46 - 05:00
STL
-
MEL
24h 14m
1 stop
Qantas Airways Logo
16:05 - 19:42
MEL
-
STL
20h 37m
1 stop
$1,805Qantas Airways
Fri, 27 Feb - Sat, 7 Mar
American Airlines Logo
16:13 - 09:30
STL
-
MEL
25h 17m
2 stops
American Airlines Logo
12:00 - 23:58
MEL
-
STL
27h 58m
1 stop
$1,814American Airlines
Thu, 12 Mar - Sat, 21 Mar
American Airlines Logo
16:13 - 09:30
STL
-
MEL
25h 17m
2 stops
American Airlines Logo
16:05 - 22:58
MEL
-
STL
22h 53m
1 stop
$1,815American Airlines
Thu, 12 Mar - Sat, 21 Mar
American Airlines Logo
06:38 - 09:30
STL
-
MEL
34h 52m
1 stop
American Airlines Logo
12:00 - 23:58
MEL
-
STL
27h 58m
1 stop
$1,822American Airlines
Thu, 12 Mar - Sat, 21 Mar
American Airlines Logo
06:38 - 09:30
STL
-
MEL
34h 52m
1 stop
American Airlines Logo
16:05 - 20:32
MEL
-
STL
20h 27m
1 stop
$1,824American Airlines
Thu, 12 Mar - Sat, 21 Mar
American Airlines Logo
06:38 - 09:30
STL
-
MEL
34h 52m
1 stop
American Airlines Logo
09:45 - 23:58
MEL
-
STL
30h 13m
1 stop
$1,838American Airlines
Tue, 24 Mar - Tue, 31 Mar
United Airlines Logo
17:29 - 10:00
STL
-
MEL
23h 31m
1 stop
United Airlines Logo
13:00 - 16:44
MEL
-
STL
20h 44m
1 stop
$1,841United Airlines
Sat, 21 Feb - Wed, 25 Feb
United Airlines Logo
19:06 - 08:15
STL
-
MEL
22h 09m
1 stop
United Airlines Logo
10:55 - 17:53
MEL
-
STL
21h 58m
1 stop
$1,842United Airlines
Fri, 22 May - Sun, 31 May

Qantas Airways flights from St. Louis to Melbourne

Our best Qantas Airways deals on St. Louis to Melbourne flight tickets
Qantas Airways
25 Mar
STL18:50Lambert-St Louis
35h 55m
2 stops
MEL22:45Melbourne
1 Apr
MEL09:45Melbourne
30h 13m
1 stop
STL23:58Lambert-St Louis
$1,314
Qantas Airways
24 Mar
STL18:08Lambert-St Louis
46h 12m
2 stops
MEL08:20Melbourne
31 Mar
MEL09:45Melbourne
30h 13m
1 stop
STL23:58Lambert-St Louis
$1,539
Qantas Airways
27 Feb
STL11:46Lambert-St Louis
24h 14m
1 stop
MEL05:00Melbourne
7 Mar
MEL16:05Melbourne
20h 37m
1 stop
STL19:42Lambert-St Louis
$1,805

Air Canada flights from St. Louis to Melbourne

Our best Air Canada deals on St. Louis to Melbourne flight tickets
Air Canada
22 May
STL07:30Lambert-St Louis
36h 35m
3 stops
MEL11:05Melbourne
31 May
MEL20:45Melbourne
54h 21m
3 stops
STL12:06Lambert-St Louis
$1,866
Air Canada
21 Feb
STL16:05Lambert-St Louis
52h 30m
3 stops
MEL13:35Melbourne
25 Feb
MEL08:00Melbourne
48h 29m
3 stops
STL15:29Lambert-St Louis
$14,980
Air Canada
21 Feb
STL16:05Lambert-St Louis
52h 30m
3 stops
MEL13:35Melbourne
25 Feb
MEL08:00Melbourne
48h 29m
3 stops
STL15:29Lambert-St Louis
$15,025

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 9 February 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

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Wed 25/3

18:50-22:45

2 stops35h 55m

Melbourne

Wed 1/4

09:45-23:58

1 stop30h 13m

$1,314

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Tue 24/3

18:08-08:20

2 stops46h 12m

Melbourne

Tue 31/3

09:45-23:58

1 stop30h 13m

$1,539

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Fri 27/2

11:46-05:00

1 stop24h 14m

Melbourne

Sat 7/3

16:05-19:42

1 stop20h 37m

$1,805

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Thu 12/3

16:13-09:30

2 stops25h 17m

Melbourne

Sat 21/3

12:00-23:58

1 stop27h 58m

$1,814

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Thu 12/3

16:13-09:30

2 stops25h 17m

Melbourne

Sat 21/3

16:05-22:58

1 stop22h 53m

$1,815

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Thu 12/3

06:38-09:30

1 stop34h 52m

Melbourne

Sat 21/3

12:00-23:58

1 stop27h 58m

$1,822

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Thu 12/3

06:38-09:30

1 stop34h 52m

Melbourne

Sat 21/3

16:05-20:32

1 stop20h 27m

$1,824

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Tue 24/3

06:38-09:30

1 stop34h 52m

Melbourne

Tue 31/3

09:45-23:58

1 stop30h 13m

$1,838

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Sat 21/2

17:29-10:00

1 stop23h 31m

Melbourne

Wed 25/2

13:00-16:44

1 stop20h 44m

$1,841

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Fri 22/5

19:06-08:15

1 stop22h 09m

Melbourne

Sun 31/5

10:55-17:53

1 stop21h 58m

$1,842

Flights are sorted by cheapest return flights first.

Showing 1-10 of 13 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, February 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 $1,836. If you aren’t able to travel to Melbourne during the month of February, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $1,913.

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 10m

Direct flights

None
The fastest flight from St. Louis to Melbourne takes 22h 10m
There are no direct flights from St. Louis to Melbourne. There are no popular flight routes from St. Louis to Melbourne.
Search flight deals

  • 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 10m.

  • 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 many operators does momondo search for flights from Lambert-St Louis Airport to Melbourne?

  • 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.

Best airlines flying from St. Louis to Melbourne

Compare and see reviews for airlines that fly from St. Louis to Melbourne with momondo
Airline
Rating
Free cancellation
Price
United AirlinesPriceFrom $2,016Free cancellationRating
7.4
9,257 reviews
Search United Airlines flights

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