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Cheap flights from St. Louis to Melbourne from $503

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 5/14. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from St. Louis to Melbourne

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
6:21 am - 6:45 am
STL
-
MEL
33h 24m
1 stop
American Airlines Logo
9:45 am - 7:30 pm
MEL
-
STL
24h 45m
2 stops
$1,116American Airlines
Tue, Apr 7 - Tue, Apr 14
Qantas Airways Logo
6:21 am - 6:45 am
STL
-
MEL
33h 24m
1 stop
Qantas Airways Logo
9:45 am - 11:57 pm
MEL
-
STL
29h 12m
1 stop
$1,127Qantas Airways
Tue, Apr 7 - Tue, Apr 14
American Airlines Logo
7:00 am - 6:00 am
STL
-
MEL
31h 00m
1 stop
American Airlines Logo
9:45 am - 7:33 pm
MEL
-
STL
24h 48m
2 stops
$1,129American Airlines
Fri, Apr 3 - Sun, Apr 19
Delta Logo
10:43 am - 7:50 am
STL
-
MEL
30h 07m
2 stops
Delta Logo
10:00 am - 8:50 pm
MEL
-
STL
25h 50m
2 stops
$1,134Delta
Wed, May 13 - Sun, Aug 16
United Airlines Logo
2:40 pm - 8:30 am
STL
-
MEL
25h 50m
2 stops
United Airlines Logo
9:30 am - 6:28 pm
MEL
-
STL
23h 58m
2 stops
$1,140United Airlines
Fri, Apr 3 - Sun, Apr 19
Delta Logo
6:29 am - 7:00 am
STL
-
MEL
32h 31m
2 stops
Delta Logo
9:10 am - 4:32 pm
MEL
-
STL
23h 22m
2 stops
$1,147Delta
Mon, Mar 9 - Sun, Mar 22
American Airlines Logo
4:13 pm - 9:30 am
STL
-
MEL
25h 17m
2 stops
American Airlines Logo
12:00 pm - 11:58 pm
MEL
-
STL
27h 58m
1 stop
$1,179American Airlines
Mon, Mar 9 - Sun, Mar 22
American Airlines Logo
2:31 pm - 9:30 am
STL
-
MEL
26h 59m
2 stops
American Airlines Logo
12:00 pm - 11:58 pm
MEL
-
STL
27h 58m
1 stop
$1,192American Airlines
Thu, Mar 12 - Sat, Mar 21
United Airlines Logo
7:06 pm - 8:15 am
STL
-
MEL
22h 09m
1 stop
United Airlines Logo
10:55 am - 5:53 pm
MEL
-
STL
21h 58m
1 stop
$1,202United Airlines
Mon, May 18 - Tue, Aug 18
Qantas Airways Logo
6:38 am - 3:20 pm
STL
-
AVV
40h 42m
2 stops
Qantas Airways Logo
6:00 am - 5:21 pm
AVV
-
STL
26h 21m
2 stops
$2,392Qantas Airways
Fri, Apr 3 - Sun, Apr 19

American Airlines flights from St. Louis to Melbourne

Our best American Airlines deals on St. Louis to Melbourne flight tickets
American Airlines
Apr 7
STL6:21 amLambert-St Louis
33h 24m
1 stop
MEL6:45 amMelbourne
Apr 14
MEL9:45 amMelbourne
24h 45m
2 stops
STL7:30 pmLambert-St Louis
$1,116
American Airlines
Apr 3
STL7:00 amLambert-St Louis
31h 00m
1 stop
MEL6:00 amMelbourne
Apr 19
MEL9:45 amMelbourne
24h 48m
2 stops
STL7:33 pmLambert-St Louis
$1,129
American Airlines
Mar 9
STL4:13 pmLambert-St Louis
25h 17m
2 stops
MEL9:30 amMelbourne
Mar 22
MEL12:00 pmMelbourne
27h 58m
1 stop
STL11:58 pmLambert-St Louis
$1,179

Qantas Airways flights from St. Louis to Melbourne

Our best Qantas Airways deals on St. Louis to Melbourne flight tickets
Qantas Airways
Apr 7
STL6:21 amLambert-St Louis
33h 24m
1 stop
MEL6:45 amMelbourne
Apr 14
MEL9:45 amMelbourne
29h 12m
1 stop
STL11:57 pmLambert-St Louis
$1,127
Qantas Airways
Feb 23
STL11:46 amLambert-St Louis
24h 14m
1 stop
MEL5:00 amMelbourne
Feb 27
MEL6:00 amMelbourne
26h 28m
2 stops
STL3:28 pmLambert-St Louis
$1,171
Qantas Airways
Feb 23
STL11:46 amLambert-St Louis
24h 14m
1 stop
MEL5:00 amMelbourne
Feb 27
MEL12:00 pmMelbourne
28h 59m
1 stop
STL11:59 pmLambert-St Louis
$1,176

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 February 22, 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

Tue 4/7

6:21 am-6:45 am

1 stop33h 24m

Melbourne

Tue 4/14

9:45 am-7:30 pm

2 stops24h 45m

$1,116

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Tue 4/7

6:21 am-6:45 am

1 stop33h 24m

Melbourne

Tue 4/14

9:45 am-11:57 pm

1 stop29h 12m

$1,127

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Fri 4/3

7:00 am-6:00 am

1 stop31h 00m

Melbourne

Sun 4/19

9:45 am-7:33 pm

2 stops24h 48m

$1,129

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Wed 5/13

10:43 am-7:50 am

2 stops30h 07m

Melbourne

Sun 8/16

10:00 am-8:50 pm

2 stops25h 50m

$1,134

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Fri 4/3

2:40 pm-8:30 am

2 stops25h 50m

Melbourne

Sun 4/19

9:30 am-6:28 pm

2 stops23h 58m

$1,140

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Mon 3/9

6:29 am-7:00 am

2 stops32h 31m

Melbourne

Sun 3/22

9:10 am-4:32 pm

2 stops23h 22m

$1,147

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Mon 3/9

4:13 pm-9:30 am

2 stops25h 17m

Melbourne

Sun 3/22

12:00 pm-11:58 pm

1 stop27h 58m

$1,179

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Thu 3/12

2:31 pm-9:30 am

2 stops26h 59m

Melbourne

Sat 3/21

12:00 pm-11:58 pm

1 stop27h 58m

$1,192

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Mon 5/18

7:06 pm-8:15 am

1 stop22h 09m

Melbourne

Tue 8/18

10:55 am-5:53 pm

1 stop21h 58m

$1,202

St. LouisMelbourne

STL - AVV

STLAVV

Lambert-St Louis

Fri 4/3

6:38 am-3:20 pm

2 stops40h 42m

Melbourne Avalon

Sun 4/19

6:00 am-5:21 pm

2 stops26h 21m

$2,392

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, 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 $1,289. The month of January is another great option to travel to Melbourne, with average flight prices from St. Louis averaging around $1,343.

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?

    There are 9481.9 mi between Lambert-St Louis and Melbourne. By plane, this route typically takes 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 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
American AirlinesPriceFrom $1,118Free CancellationRating
7.2
11,340 reviews
Search American Airlines flights
Qantas AirwaysPriceFrom $1,234Free CancellationRating
7.5
996 reviews
Search Qantas Airways flights
United AirlinesPriceFrom $1,289Free CancellationRating
7.4
9,341 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