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Cheap flights from St. Louis to Melbourne from $991

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 2/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from St. Louis to Melbourne

Cheap return flights

Logo
17:54 - 18:45STL-MEL
31h 51m2 stops
Logo
07:00 - 22:24MEL-STL
32h 24m2 stops
$1,663
Find Deal
Tue, 10 Feb - Thu, 19 Feb
Qantas Airways Logo
17:09 - 05:00STL-MEL
43h 51m1 stop
Qantas Airways Logo
19:20 - 23:42MEL-STL
45h 22m2 stops
$1,664Qantas Airways
Find Deal
Sat, 1 Nov - Sat, 8 Nov
Qantas Airways Logo
06:00 - 09:30STL-MEL
34h 30m1 stop
Qantas Airways Logo
06:45 - 23:08MEL-STL
33h 23m2 stops
$1,678Qantas Airways
Find Deal
Wed, 4 Feb - Thu, 26 Feb
American Airlines Logo
16:34 - 09:30STL-MEL
24h 56m2 stops
American Airlines Logo
16:05 - 22:29MEL-STL
23h 24m1 stop
$1,884American Airlines
Find Deal
Mon, 27 Oct - Mon, 3 Nov
American Airlines Logo
09:44 - 06:45STL-MEL
30h 01m2 stops
American Airlines Logo
09:45 - 18:22MEL-STL
24h 37m2 stops
$1,903American Airlines
Find Deal
Sat, 27 Sep - Mon, 6 Oct
Delta Logo
19:05 - 08:00STL-MEL
43h 55m2 stops
Delta Logo
10:10 - 16:50MEL-STL
23h 40m2 stops
$1,950Delta
Find Deal
Sun, 1 Feb - Sun, 1 Mar
United Airlines Logo
17:00 - 10:00STL-MEL
24h 00m1 stop
United Airlines Logo
13:00 - 16:44MEL-STL
20h 44m1 stop
$1,963United Airlines
Find Deal
Sun, 1 Feb - Thu, 26 Feb
United Airlines Logo
16:35 - 09:30STL-MEL
23h 55m2 stops
United Airlines Logo
11:30 - 16:34MEL-STL
22h 04m2 stops
$1,969United Airlines
Find Deal
Sat, 7 Feb - Fri, 27 Feb
Air New Zealand Logo
17:30 - 10:55STL-MEL
48h 25m2 stops
Air New Zealand Logo
10:35 - 22:00MEL-STL
28h 25m2 stops
$2,019Air New Zealand
Find Deal
Sat, 13 Dec - Sun, 18 Jan
Air New Zealand Logo
08:20 - 10:55STL-MEL
34h 35m2 stops
Air New Zealand Logo
08:35 - 18:47MEL-STL
27h 12m2 stops
$2,074Air New Zealand
Find Deal
Fri, 31 Oct - Sun, 9 Nov

Qantas Airways flights from St. Louis to Melbourne

Our best Qantas Airways deals on St. Louis to Melbourne flight tickets
Qantas Airways
1 Nov
STL17:09Lambert-St Louis
43h 51m
1 stop
MEL05:00Melbourne
8 Nov
MEL19:20Melbourne
45h 22m
2 stops
STL23:42Lambert-St Louis
$1,664
Find similar
Qantas Airways
4 Feb
STL06:00Lambert-St Louis
34h 30m
1 stop
MEL09:30Melbourne
26 Feb
MEL06:45Melbourne
33h 23m
2 stops
STL23:08Lambert-St Louis
$1,678
Find similar
Qantas Airways
10 Feb
STL06:00Lambert-St Louis
34h 30m
1 stop
MEL09:30Melbourne
19 Feb
MEL13:55Melbourne
41h 03m
2 stops
STL13:58Lambert-St Louis
$1,712
Find similar

American Airlines flights from St. Louis to Melbourne

Our best American Airlines deals on St. Louis to Melbourne flight tickets
American Airlines
27 Oct
STL16:34Lambert-St Louis
24h 56m
2 stops
MEL09:30Melbourne
3 Nov
MEL16:05Melbourne
23h 24m
1 stop
STL22:29Lambert-St Louis
$1,884
Find similar
American Airlines
27 Sept
STL09:44Lambert-St Louis
30h 01m
2 stops
MEL06:45Melbourne
6 Oct
MEL09:45Melbourne
24h 37m
2 stops
STL18:22Lambert-St Louis
$1,903
Find similar
American Airlines
27 Oct
STL16:34Lambert-St Louis
24h 56m
2 stops
MEL09:30Melbourne
3 Nov
MEL12:00Melbourne
24h 27m
2 stops
STL19:27Lambert-St Louis
$1,905
Find similar

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 14 September 2025.
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

Tue 10/2

17:54-18:45

2 stops31h 51m

Melbourne

Thu 19/2

07:00-22:24

2 stops32h 24m

$1,663

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Sat 1/11

17:09-05:00

1 stop43h 51m

Melbourne

Sat 8/11

19:20-23:42

2 stops45h 22m

$1,664

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Wed 4/2

06:00-09:30

1 stop34h 30m

Melbourne

Thu 26/2

06:45-23:08

2 stops33h 23m

$1,678

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Mon 27/10

16:34-09:30

2 stops24h 56m

Melbourne

Mon 3/11

16:05-22:29

1 stop23h 24m

$1,884

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Sat 27/9

09:44-06:45

2 stops30h 01m

Melbourne

Mon 6/10

09:45-18:22

2 stops24h 37m

$1,903

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Sun 1/2

19:05-08:00

2 stops43h 55m

Melbourne

Sun 1/3

10:10-16:50

2 stops23h 40m

$1,950

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Sun 1/2

17:00-10:00

1 stop24h 00m

Melbourne

Thu 26/2

13:00-16:44

1 stop20h 44m

$1,963

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Sat 7/2

16:35-09:30

2 stops23h 55m

Melbourne

Fri 27/2

11:30-16:34

2 stops22h 04m

$1,969

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Sat 13/12

17:30-10:55

2 stops48h 25m

Melbourne

Sun 18/1

10:35-22:00

2 stops28h 25m

$2,019

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Fri 31/10

08:20-10:55

2 stops34h 35m

Melbourne

Sun 9/11

08:35-18:47

2 stops27h 12m

$2,074

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 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 $1,862. If you aren’t able to travel to Melbourne during the month of February, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $2,148.

What is the cheapest time of day to depart on your flight to Melbourne?

Our most recent data shows that the best time of day to fly to Melbourne is in the morning. Flights from St. Louis to Melbourne during this time can be as low as $2,070. Flights to Melbourne are more costly in the afternoon, with an average ticket price of $2,800. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

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

Direct flights

None
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 23h 31m.

  • 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 $1,974Free cancellationRating
7.4
8,931 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