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Cheap flights from St. Louis to Melbourne from $785

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 10/14. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from St. Louis to Melbourne

Cheap round-trip flights

Enter your travel dates to find the best prices.
Qantas Airways Logo
7:10 pm - 5:00 am
STL
-
MEL
41h 50m
1 stop
Qantas Airways Logo
12:00 pm - 5:54 pm
MEL
-
STL
22h 54m
1 stop
$1,109Qantas Airways
Tue, Oct 20 - Tue, Nov 3
Qantas Airways Logo
7:10 pm - 5:00 am
STL
-
MEL
41h 50m
1 stop
Qantas Airways Logo
12:00 pm - 5:02 pm
MEL
-
STL
21h 02m
1 stop
$1,110Qantas Airways
Tue, Oct 20 - Tue, Oct 27
Qantas Airways Logo
5:40 am - 5:00 am
STL
-
MEL
31h 20m
1 stop
Qantas Airways Logo
10:45 pm - 11:45 pm
MEL
-
STL
42h 00m
1 stop
$1,112Qantas Airways
Tue, Oct 27 - Wed, Nov 11
American Airlines Logo
5:40 am - 5:00 am
STL
-
MEL
31h 20m
1 stop
American Airlines Logo
10:45 pm - 8:07 am
MEL
-
STL
26h 22m
2 stops
$1,122American Airlines
Tue, Oct 27 - Wed, Nov 11
American Airlines Logo
12:47 pm - 9:30 am
STL
-
MEL
28h 43m
2 stops
American Airlines Logo
10:45 pm - 8:07 am
MEL
-
STL
26h 22m
2 stops
$1,122American Airlines
Tue, Oct 27 - Wed, Nov 11
American Airlines Logo
8:48 am - 6:45 am
STL
-
MEL
29h 57m
2 stops
American Airlines Logo
12:00 pm - 11:33 pm
MEL
-
STL
28h 33m
1 stop
$1,122American Airlines
Tue, Oct 20 - Tue, Nov 3
Multiple Airlines Logo
2:40 pm - 4:05 pm
STL
-
AVV
33h 25m
3 stops
Multiple Airlines Logo
6:00 am - 3:26 pm
AVV
-
STL
50h 26m
3 stops
$1,130Multiple Airlines
Tue, Oct 20 - Tue, Nov 3
Multiple Airlines Logo
4:05 pm - 11:15 pm
STL
-
AVV
63h 10m
3 stops
Multiple Airlines Logo
6:00 am - 3:26 pm
AVV
-
STL
50h 26m
3 stops
$1,130Multiple Airlines
Tue, Oct 27 - Wed, Nov 11
United Airlines Logo
12:59 pm - 7:30 am
STL
-
MEL
27h 31m
2 stops
United Airlines Logo
9:30 am - 5:06 pm
MEL
-
STL
22h 36m
2 stops
$1,216United Airlines
Wed, Aug 26 - Wed, Sep 9
United Airlines Logo
8:00 am - 9:15 am
STL
-
MEL
33h 15m
2 stops
United Airlines Logo
11:45 am - 10:15 pm
MEL
-
STL
26h 30m
1 stop
$1,216United Airlines
Sun, Oct 18 - Sun, Oct 25

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United Airlines flights from St. Louis to Melbourne

Our best United Airlines deals on St. Louis to Melbourne flight tickets
United Airlines
Aug 26
STL12:59 pmLambert-St Louis
28h 16m
2 stops
MEL8:15 amMelbourne
Sep 9
MEL10:55 amMelbourne
22h 44m
1 stop
STL6:39 pmLambert-St Louis
$1,216
United Airlines
Oct 18
STL7:08 amLambert-St Louis
34h 07m
1 stop
MEL9:15 amMelbourne
Oct 25
MEL11:45 amMelbourne
22h 20m
1 stop
STL6:05 pmLambert-St Louis
$1,222
United Airlines
Oct 18
STL6:15 amLambert-St Louis
35h 00m
2 stops
MEL9:15 amMelbourne
Oct 25
MEL7:00 amMelbourne
27h 05m
3 stops
STL6:05 pmLambert-St Louis
$1,230

American Airlines flights from St. Louis to Melbourne

Our best American Airlines deals on St. Louis to Melbourne flight tickets
American Airlines
Oct 27
STL12:47 pmLambert-St Louis
28h 43m
2 stops
MEL9:30 amMelbourne
Nov 11
MEL10:45 pmMelbourne
26h 22m
2 stops
STL8:07 amLambert-St Louis
$1,122
American Airlines
Oct 20
STL6:04 amLambert-St Louis
32h 41m
1 stop
MEL6:45 amMelbourne
Oct 27
MEL10:45 pmMelbourne
26h 35m
2 stops
STL9:20 amLambert-St Louis
$1,131
American Airlines
Oct 20
STL12:47 pmLambert-St Louis
29h 48m
2 stops
MEL10:35 amMelbourne
Nov 3
MEL12:00 pmMelbourne
26h 59m
1 stop
STL9:59 pmLambert-St Louis
$1,154

momondo Fare Finder

 
Customize 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 832,500 searches. Data last updated July 29, 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 round-trip

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Tue 10/20

7:10 pm-5:00 am

1 stop41h 50m

Melbourne

Tue 11/3

12:00 pm-5:54 pm

1 stop22h 54m

$1,109

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Tue 10/20

7:10 pm-5:00 am

1 stop41h 50m

Melbourne

Tue 10/27

12:00 pm-5:02 pm

1 stop21h 02m

$1,110

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Tue 10/27

5:40 am-5:00 am

1 stop31h 20m

Melbourne

Wed 11/11

10:45 pm-11:45 pm

1 stop42h 00m

$1,112

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Tue 10/27

5:40 am-5:00 am

1 stop31h 20m

Melbourne

Wed 11/11

10:45 pm-8:07 am

2 stops26h 22m

$1,122

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Tue 10/27

12:47 pm-9:30 am

2 stops28h 43m

Melbourne

Wed 11/11

10:45 pm-8:07 am

2 stops26h 22m

$1,122

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Tue 10/20

8:48 am-6:45 am

2 stops29h 57m

Melbourne

Tue 11/3

12:00 pm-11:33 pm

1 stop28h 33m

$1,122

St. LouisMelbourne

STL - AVV

STLAVV

Lambert-St Louis

Tue 10/20

2:40 pm-4:05 pm

3 stops33h 25m

Melbourne Avalon

Tue 11/3

6:00 am-3:26 pm

3 stops50h 26m

$1,130

St. LouisMelbourne

STL - AVV

STLAVV

Lambert-St Louis

Tue 10/27

4:05 pm-11:15 pm

3 stops63h 10m

Melbourne Avalon

Wed 11/11

6:00 am-3:26 pm

3 stops50h 26m

$1,130
Quickest round-trip

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Wed 8/26

12:59 pm-7:30 am

2 stops27h 31m

Melbourne

Wed 9/9

9:30 am-5:06 pm

2 stops22h 36m

$1,216

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Sun 10/18

8:00 am-9:15 am

2 stops33h 15m

Melbourne

Sun 10/25

11:45 am-10:15 pm

1 stop26h 30m

$1,216

Flights are sorted by cheapest round-trip 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, April 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 $0. The month of May is another great option to travel to Melbourne, with average flight prices from St. Louis averaging around $1,155.

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 40m

Direct flights

None
The fastest flight from St. Louis to Melbourne takes 22h 40m
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?

    There are 9481.9 mi between Lambert-St Louis and Melbourne. By plane, this route typically takes 22h 40m.

  • 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 are updated 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 layovers. 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 travel and health documents you'll need for your trip to Melbourne may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Melbourne. It is always advisable to seek advice from your airline or a trusted 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
Qantas AirwaysPriceFrom $857Free CancellationRating
7.5
1,073 reviews
Search Qantas Airways flights
American AirlinesPriceFrom $1,086Free CancellationRating
7.1
11,839 reviews
Search American Airlines flights
United AirlinesPriceFrom $1,260Free CancellationRating
7.4
10,052 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Melbourne?

Finding the right flight to Melbourne from St. Louis is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Melbourne quick and easy, saving you time and money.

Can I find flights from St. Louis to Melbourne with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Melbourne from St. Louis with this policy.

How can momondo help me find flights from St. Louis to Melbourne?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from St. Louis to Melbourne.

I’m not ready to book a flight from St. Louis to Melbourne right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of St. Louis to Melbourne flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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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 31.3 mi from Melbourne
Melbourne Avalon Airport