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Cheap flights from St. Louis to Melbourne from $763

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 30/3. 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
15:38 - 05:00
STL
-
MEL
22h 22m
1 stop
American Airlines Logo
09:45 - 23:57
MEL
-
STL
29h 12m
1 stop
$1,553American Airlines
Mon, 13 Apr - Mon, 20 Apr
Qantas Airways Logo
06:38 - 06:45
STL
-
MEL
32h 07m
1 stop
Qantas Airways Logo
09:45 - 23:57
MEL
-
STL
29h 12m
1 stop
$1,563Qantas Airways
Mon, 30 Mar - Wed, 8 Apr
American Airlines Logo
07:00 - 06:00
STL
-
MEL
31h 00m
1 stop
American Airlines Logo
09:45 - 23:57
MEL
-
STL
29h 12m
1 stop
$1,564American Airlines
Fri, 3 Apr - Sun, 19 Apr
American Airlines Logo
14:19 - 07:45
STL
-
MEL
25h 26m
2 stops
American Airlines Logo
09:45 - 19:30
MEL
-
STL
24h 45m
2 stops
$1,570American Airlines
Fri, 3 Apr - Sun, 19 Apr
Qantas Airways Logo
19:20 - 05:00
STL
-
MEL
42h 40m
1 stop
Qantas Airways Logo
09:45 - 23:08
MEL
-
STL
28h 23m
1 stop
$1,571Qantas Airways
Fri, 31 Jul - Fri, 7 Aug
Qantas Airways Logo
06:21 - 06:45
STL
-
MEL
33h 24m
1 stop
Qantas Airways Logo
13:35 - 19:30
MEL
-
STL
20h 55m
1 stop
$1,576Qantas Airways
Wed, 15 Apr - Wed, 22 Apr
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
$1,577American Airlines
Thu, 12 Mar - Sat, 21 Mar
American Airlines Logo
16:13 - 06:00
STL
-
MEL
21h 47m
1 stop
American Airlines Logo
09:45 - 23:57
MEL
-
STL
29h 12m
1 stop
$1,580American Airlines
Fri, 3 Apr - Sun, 19 Apr
United Airlines Logo
19:05 - 09:15
STL
-
MEL
22h 10m
1 stop
United Airlines Logo
09:30 - 16:56
MEL
-
STL
22h 26m
2 stops
$1,585United Airlines
Fri, 3 Apr - Sun, 19 Apr
American Airlines Logo
11:46 - 07:45
STL
-
MEL
27h 59m
2 stops
American Airlines Logo
09:45 - 19:33
MEL
-
STL
24h 48m
2 stops
$1,587American Airlines
Fri, 3 Apr - Sun, 19 Apr

United Airlines flights from St. Louis to Melbourne

Our best United Airlines deals on St. Louis to Melbourne flight tickets
United Airlines
3 Apr
STL19:05Lambert-St Louis
22h 10m
1 stop
MEL09:15Melbourne
19 Apr
MEL09:30Melbourne
22h 26m
2 stops
STL16:56Lambert-St Louis
$1,585
United Airlines
29 Mar
STL18:05Lambert-St Louis
46h 25m
2 stops
MEL08:30Melbourne
9 Apr
MEL10:55Melbourne
26h 33m
2 stops
STL22:28Lambert-St Louis
$1,605
United Airlines
29 Mar
STL18:05Lambert-St Louis
46h 25m
2 stops
MEL08:30Melbourne
9 Apr
MEL10:55Melbourne
22h 29m
1 stop
STL18:24Lambert-St Louis
$1,607

American Airlines flights from St. Louis to Melbourne

Our best American Airlines deals on St. Louis to Melbourne flight tickets
American Airlines
13 Apr
STL15:38Lambert-St Louis
22h 22m
1 stop
MEL05:00Melbourne
20 Apr
MEL09:45Melbourne
29h 12m
1 stop
STL23:57Lambert-St Louis
$1,553
American Airlines
3 Apr
STL07:00Lambert-St Louis
31h 00m
1 stop
MEL06:00Melbourne
19 Apr
MEL09:45Melbourne
29h 12m
1 stop
STL23:57Lambert-St Louis
$1,564
American Airlines
3 Apr
STL14:19Lambert-St Louis
25h 26m
2 stops
MEL07:45Melbourne
19 Apr
MEL09:45Melbourne
24h 45m
2 stops
STL19:30Lambert-St Louis
$1,570

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 2 March 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

Mon 13/4

15:38-05:00

1 stop22h 22m

Melbourne

Mon 20/4

09:45-23:57

1 stop29h 12m

$1,553

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Mon 30/3

06:38-06:45

1 stop32h 07m

Melbourne

Wed 8/4

09:45-23:57

1 stop29h 12m

$1,563

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Fri 3/4

07:00-06:00

1 stop31h 00m

Melbourne

Sun 19/4

09:45-23:57

1 stop29h 12m

$1,564

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Fri 3/4

14:19-07:45

2 stops25h 26m

Melbourne

Sun 19/4

09:45-19:30

2 stops24h 45m

$1,570

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Fri 31/7

19:20-05:00

1 stop42h 40m

Melbourne

Fri 7/8

09:45-23:08

1 stop28h 23m

$1,571

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Wed 15/4

06:21-06:45

1 stop33h 24m

Melbourne

Wed 22/4

13:35-19:30

1 stop20h 55m

$1,576

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

$1,577

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Fri 3/4

16:13-06:00

1 stop21h 47m

Melbourne

Sun 19/4

09:45-23:57

1 stop29h 12m

$1,580

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Fri 3/4

19:05-09:15

1 stop22h 10m

Melbourne

Sun 19/4

09:30-16:56

2 stops22h 26m

$1,585

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Fri 3/4

11:46-07:45

2 stops27h 59m

Melbourne

Sun 19/4

09:45-19:33

2 stops24h 48m

$1,587

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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, 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 $1,812. 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 $1,888.

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 $1,989Free cancellationRating
7.4
9,375 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