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Cheap flights from St. Louis to Melbourne from $906

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Melbourne departing on 3/18. 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.
Qantas Airways Logo
6:50 pm - 8:20 am
STL
-
MEL
45h 30m
2 stops
Qantas Airways Logo
12:00 pm - 11:58 pm
MEL
-
STL
27h 58m
1 stop
$906Qantas Airways
Wed, Mar 18 - Wed, Mar 25
Qantas Airways Logo
4:13 pm - 8:20 am
STL
-
MEL
47h 07m
2 stops
Qantas Airways Logo
12:00 pm - 11:58 pm
MEL
-
STL
27h 58m
1 stop
$934Qantas Airways
Wed, Mar 4 - Wed, Mar 11
Delta Logo
10:43 am - 7:50 am
STL
-
MEL
30h 07m
2 stops
Delta Logo
10:00 am - 12:36 am
MEL
-
STL
29h 36m
2 stops
$1,170Delta
Wed, May 13 - Sun, Aug 16
Delta Logo
2:22 pm - 8:00 am
STL
-
MEL
24h 38m
2 stops
Delta Logo
9:10 am - 11:58 pm
MEL
-
STL
30h 48m
2 stops
$1,175Delta
Wed, Mar 4 - Wed, Mar 11
Delta Logo
7:59 pm - 7:50 am
STL
-
MEL
44h 51m
2 stops
Delta Logo
10:00 am - 12:36 am
MEL
-
STL
29h 36m
2 stops
$1,221Delta
Thu, May 14 - Sun, Aug 16
Delta Logo
9:45 am - 8:50 am
STL
-
MEL
31h 05m
2 stops
Delta Logo
10:00 am - 12:25 am
MEL
-
STL
29h 25m
2 stops
$1,224Delta
Fri, Apr 3 - Sun, Apr 19
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
$1,260American Airlines
Fri, Mar 20 - Fri, Mar 27
American Airlines Logo
9:35 am - 5:00 am
STL
-
MEL
27h 25m
1 stop
American Airlines Logo
4:05 pm - 7:42 pm
MEL
-
STL
19h 37m
1 stop
$1,269American Airlines
Sat, Mar 21 - Sat, Mar 28
Multiple Airlines Logo
4:05 pm - 11:15 pm
STL
-
AVV
62h 10m
3 stops
Multiple Airlines Logo
6:00 am - 3:29 pm
AVV
-
STL
49h 29m
3 stops
$1,617Multiple Airlines
Wed, Mar 4 - Wed, Mar 11
Multiple Airlines Logo
4:05 pm - 8:20 pm
STL
-
AVV
60h 15m
3 stops
Multiple Airlines Logo
8:55 pm - 3:24 pm
AVV
-
STL
57h 29m
3 stops
$1,706Multiple Airlines
Mon, Mar 30 - Mon, Apr 6

American Airlines flights from St. Louis to Melbourne

Our best American Airlines deals on St. Louis to Melbourne flight tickets
American Airlines
Mar 20
STL4:13 pmLambert-St Louis
25h 17m
2 stops
MEL9:30 amMelbourne
Mar 27
MEL12:00 pmMelbourne
27h 58m
1 stop
STL11:58 pmLambert-St Louis
$1,260
American Airlines
Mar 12
STL4:13 pmLambert-St Louis
25h 17m
2 stops
MEL9:30 amMelbourne
Mar 21
MEL4:05 pmMelbourne
20h 27m
1 stop
STL8:32 pmLambert-St Louis
$1,273
American Airlines
Mar 12
STL4:13 pmLambert-St Louis
25h 17m
2 stops
MEL9:30 amMelbourne
Mar 21
MEL12:00 pmMelbourne
27h 58m
1 stop
STL11:58 pmLambert-St Louis
$1,274

Qantas Airways flights from St. Louis to Melbourne

Our best Qantas Airways deals on St. Louis to Melbourne flight tickets
Qantas Airways
Mar 18
STL6:50 pmLambert-St Louis
45h 30m
2 stops
MEL8:20 amMelbourne
Mar 25
MEL12:00 pmMelbourne
27h 58m
1 stop
STL11:58 pmLambert-St Louis
$906
Qantas Airways
Mar 4
STL4:13 pmLambert-St Louis
47h 07m
2 stops
MEL8:20 amMelbourne
Mar 11
MEL12:00 pmMelbourne
27h 58m
1 stop
STL11:58 pmLambert-St Louis
$934
Qantas Airways
May 16
STL3:38 pmLambert-St Louis
22h 22m
1 stop
MEL5:00 amMelbourne
Aug 13
MEL9:45 amMelbourne
28h 23m
1 stop
STL11:08 pmLambert-St Louis
$1,235

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 4, 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

Wed 3/18

6:50 pm-8:20 am

2 stops45h 30m

Melbourne

Wed 3/25

12:00 pm-11:58 pm

1 stop27h 58m

$906

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Wed 3/4

4:13 pm-8:20 am

2 stops47h 07m

Melbourne

Wed 3/11

12:00 pm-11:58 pm

1 stop27h 58m

$934

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-12:36 am

2 stops29h 36m

$1,170

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Wed 3/4

2:22 pm-8:00 am

2 stops24h 38m

Melbourne

Wed 3/11

9:10 am-11:58 pm

2 stops30h 48m

$1,175

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Thu 5/14

7:59 pm-7:50 am

2 stops44h 51m

Melbourne

Sun 8/16

10:00 am-12:36 am

2 stops29h 36m

$1,221

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Fri 4/3

9:45 am-8:50 am

2 stops31h 05m

Melbourne

Sun 4/19

10:00 am-12:25 am

2 stops29h 25m

$1,224

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Fri 3/20

4:13 pm-9:30 am

2 stops25h 17m

Melbourne

Fri 3/27

12:00 pm-11:58 pm

1 stop27h 58m

$1,260

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Sat 3/21

9:35 am-5:00 am

1 stop27h 25m

Melbourne

Sat 3/28

4:05 pm-7:42 pm

1 stop19h 37m

$1,269

St. LouisMelbourne

STL - AVV

STLAVV

Lambert-St Louis

Wed 3/4

4:05 pm-11:15 pm

3 stops62h 10m

Melbourne Avalon

Wed 3/11

6:00 am-3:29 pm

3 stops49h 29m

$1,617

St. LouisMelbourne

STL - AVV

STLAVV

Lambert-St Louis

Mon 3/30

4:05 pm-8:20 pm

3 stops60h 15m

Melbourne Avalon

Mon 4/6

8:55 pm-3:24 pm

3 stops57h 29m

$1,706

Flights are sorted by cheapest round-trip 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, 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 09m

Direct flights

None
The fastest flight from St. Louis to Melbourne takes 22h 09m
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 09m.

  • 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
11,222 reviews
Search American Airlines flights
Qantas AirwaysPriceFrom $1,234Free CancellationRating
7.5
986 reviews
Search Qantas Airways flights
United AirlinesPriceFrom $1,281Free CancellationRating
7.4
9,236 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