Cheap flights from St. Louis to Melbourne from $1,612

This is the cheapest return 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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Cheap return flights

Enter your travel dates to find the best prices.
Qantas Airways Logo
16:13 - 05:00
STL
-
MEL
20h 47m
1 stop
Qantas Airways Logo
13:35 - 19:29
MEL
-
STL
20h 54m
1 stop
$1,612Qantas Airways
Mon, 30 Mar - Mon, 6 Apr
Delta Logo
18:59 - 08:50
STL
-
MEL
45h 51m
2 stops
Delta Logo
10:00 - 17:07
MEL
-
STL
22h 07m
2 stops
$1,664Delta
Sun, 29 Mar - Wed, 8 Apr
Qantas Airways Logo
18:50 - 05:00
STL
-
MEL
42h 10m
1 stop
Qantas Airways Logo
13:35 - 19:29
MEL
-
STL
20h 54m
1 stop
$1,683Qantas Airways
Sun, 29 Mar - Mon, 6 Apr
Qantas Airways Logo
06:38 - 10:00
STL
-
MEL
35h 22m
2 stops
Qantas Airways Logo
13:35 - 19:29
MEL
-
STL
20h 54m
1 stop
$1,684Qantas Airways
Mon, 30 Mar - Mon, 6 Apr
Qantas Airways Logo
06:38 - 06:45
STL
-
MEL
32h 07m
1 stop
Qantas Airways Logo
09:45 - 23:58
MEL
-
STL
29h 13m
1 stop
$1,688Qantas Airways
Sun, 29 Mar - Sun, 5 Apr
Delta Logo
09:45 - 08:50
STL
-
MEL
31h 05m
2 stops
Delta Logo
10:00 - 23:13
MEL
-
STL
28h 13m
2 stops
$1,735Delta
Fri, 3 Apr - Sun, 19 Apr
Delta Logo
14:12 - 08:50
STL
-
MEL
26h 38m
2 stops
Delta Logo
10:00 - 13:17
MEL
-
STL
42h 17m
2 stops
$1,756Delta
Fri, 27 Mar - Sun, 5 Apr
Qantas Airways Logo
16:13 - 05:00
STL
-
MEL
20h 47m
1 stop
Qantas Airways Logo
09:45 - 23:58
MEL
-
STL
29h 13m
1 stop
$1,759Qantas Airways
Fri, 27 Mar - Sun, 5 Apr
Qantas Airways Logo
06:38 - 10:00
STL
-
MEL
35h 22m
2 stops
Qantas Airways Logo
13:35 - 19:29
MEL
-
STL
20h 54m
1 stop
$1,772Qantas Airways
Sun, 29 Mar - Mon, 6 Apr
American Airlines Logo
14:31 - 09:30
STL
-
MEL
26h 59m
2 stops
American Airlines Logo
16:05 - 20:32
MEL
-
STL
20h 27m
1 stop
$1,803American Airlines
Thu, 12 Mar - Sat, 21 Mar

American Airlines flights from St. Louis to Melbourne

Our best American Airlines deals on St. Louis to Melbourne flight tickets
American Airlines
12 Mar
STL14:19Lambert-St Louis
27h 11m
2 stops
MEL09:30Melbourne
21 Mar
MEL16:05Melbourne
20h 27m
1 stop
STL20:32Lambert-St Louis
$1,804
American Airlines
15 Mar
STL14:31Lambert-St Louis
26h 59m
2 stops
MEL09:30Melbourne
22 Mar
MEL12:00Melbourne
27h 58m
1 stop
STL23:58Lambert-St Louis
$1,806
American Airlines
12 Mar
STL06:38Lambert-St Louis
34h 52m
1 stop
MEL09:30Melbourne
21 Mar
MEL12:00Melbourne
27h 58m
1 stop
STL23:58Lambert-St Louis
$1,813

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
MEL10:55Melbourne
22h 29m
1 stop
STL18:24Lambert-St Louis
$1,831
United Airlines
3 Apr
STL19:05Lambert-St Louis
22h 10m
1 stop
MEL09:15Melbourne
19 Apr
MEL10:55Melbourne
22h 29m
1 stop
STL18:24Lambert-St Louis
$1,833
United Airlines
3 Apr
STL19:05Lambert-St Louis
22h 10m
1 stop
MEL09:15Melbourne
19 Apr
MEL10:55Melbourne
24h 59m
2 stops
STL20:54Lambert-St Louis
$1,839

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 30 January 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 30/3

16:13-05:00

1 stop20h 47m

Melbourne

Mon 6/4

13:35-19:29

1 stop20h 54m

$1,612

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Sun 29/3

18:59-08:50

2 stops45h 51m

Melbourne

Wed 8/4

10:00-17:07

2 stops22h 07m

$1,664

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Sun 29/3

18:50-05:00

1 stop42h 10m

Melbourne

Mon 6/4

13:35-19:29

1 stop20h 54m

$1,682

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Mon 30/3

06:38-10:00

2 stops35h 22m

Melbourne

Mon 6/4

13:35-19:29

1 stop20h 54m

$1,684

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Sun 29/3

06:38-06:45

1 stop32h 07m

Melbourne

Sun 5/4

09:45-23:58

1 stop29h 13m

$1,688

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Fri 3/4

09:45-08:50

2 stops31h 05m

Melbourne

Sun 19/4

10:00-23:13

2 stops28h 13m

$1,735

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Fri 27/3

14:12-08:50

2 stops26h 38m

Melbourne

Sun 5/4

10:00-13:17

2 stops42h 17m

$1,756

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Fri 27/3

16:13-05:00

1 stop20h 47m

Melbourne

Sun 5/4

09:45-23:58

1 stop29h 13m

$1,759

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Sun 29/3

06:38-10:00

2 stops35h 22m

Melbourne

Mon 6/4

13:35-19:29

1 stop20h 54m

$1,772

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Thu 12/3

14:31-09:30

2 stops26h 59m

Melbourne

Sat 21/3

16:05-20:32

1 stop20h 27m

$1,803

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

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, January 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 $1,905. If you aren’t able to travel to Melbourne during the month of January, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $1,908.

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

20h 47m

Direct flights

None
The fastest flight from St. Louis to Melbourne takes 20h 47m
There are no direct flights from St. Louis to Melbourne. There are no popular flight routes 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 20h 47m.

  • 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 $2,007Free cancellationRating
7.4
9,215 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?

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1 adult
Sun 1/3
Sun 8/3

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