Cheap flights from St. Louis to Melbourne from $587

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 4/1. 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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Cheap round-trip flights

Enter your travel dates to find the best prices.
Qantas Airways Logo
6:38 am - 9:30 am
STL
-
MEL
33h 52m
1 stop
Qantas Airways Logo
6:30 pm - 11:59 pm
MEL
-
STL
46h 29m
2 stops
$1,012Qantas Airways
Mon, Feb 16 - Tue, Feb 24
Qantas Airways Logo
6:38 am - 5:15 pm
STL
-
MEL
41h 37m
2 stops
Qantas Airways Logo
12:00 pm - 11:58 pm
MEL
-
STL
27h 58m
1 stop
$1,146Qantas Airways
Thu, Feb 26 - Fri, Mar 13
Delta Logo
1:11 pm - 7:50 am
STL
-
MEL
27h 39m
2 stops
Delta Logo
10:00 am - 11:38 pm
MEL
-
STL
28h 38m
2 stops
$1,169Delta
Mon, May 4 - Sun, May 17
Delta Logo
6:59 pm - 7:50 am
STL
-
MEL
45h 51m
2 stops
Delta Logo
10:00 am - 6:00 pm
MEL
-
STL
23h 00m
2 stops
$1,180Delta
Tue, Jun 23 - Wed, Jul 8
Delta Logo
5:00 pm - 7:50 am
STL
-
MEL
47h 50m
2 stops
Delta Logo
10:00 am - 8:49 pm
MEL
-
STL
25h 49m
2 stops
$1,185Delta
Sun, May 24 - Wed, Jun 3
Qantas Airways Logo
6:50 pm - 5:00 am
STL
-
MEL
41h 10m
1 stop
Qantas Airways Logo
6:30 pm - 10:58 pm
MEL
-
STL
45h 28m
2 stops
$1,194Qantas Airways
Sun, Mar 1 - Sun, Mar 8
Air New Zealand Logo
6:00 pm - 10:55 am
STL
-
MEL
25h 55m
2 stops
Air New Zealand Logo
8:35 am - 10:06 pm
MEL
-
STL
28h 31m
2 stops
$1,216Air New Zealand
Mon, May 25 - Mon, Jun 1
Air New Zealand Logo
6:00 am - 10:55 am
STL
-
MEL
37h 55m
2 stops
Air New Zealand Logo
8:35 am - 10:28 pm
MEL
-
STL
28h 53m
2 stops
$1,225Air New Zealand
Sun, Apr 12 - Sun, Apr 26
Multiple Airlines Logo
7:30 am - 2:10 pm
STL
-
AVV
39h 40m
3 stops
Multiple Airlines Logo
8:55 pm - 12:06 pm
AVV
-
STL
54h 11m
3 stops
$1,385Multiple Airlines
Thu, May 7 - Thu, May 14
Multiple Airlines Logo
4:13 pm - 2:10 pm
STL
-
AVV
28h 57m
2 stops
Multiple Airlines Logo
6:00 am - 5:13 pm
AVV
-
STL
28h 13m
2 stops
$1,511Multiple Airlines
Mon, Feb 16 - Tue, Feb 24

American Airlines flights from St. Louis to Melbourne

Our best American Airlines deals on St. Louis to Melbourne flight tickets
American Airlines
Mar 12
STL2:19 pmLambert-St Louis
27h 11m
2 stops
MEL9:30 amMelbourne
Mar 21
MEL12:00 pmMelbourne
27h 58m
1 stop
STL11:58 pmLambert-St Louis
$1,270
American Airlines
Mar 12
STL6:38 amLambert-St Louis
34h 52m
1 stop
MEL9:30 amMelbourne
Mar 21
MEL12:00 pmMelbourne
27h 58m
1 stop
STL11:58 pmLambert-St Louis
$1,276
American Airlines
Mar 12
STL6:38 amLambert-St Louis
34h 52m
1 stop
MEL9:30 amMelbourne
Mar 21
MEL4:05 pmMelbourne
20h 27m
1 stop
STL8:32 pmLambert-St Louis
$1,426

Qantas Airways flights from St. Louis to Melbourne

Our best Qantas Airways deals on St. Louis to Melbourne flight tickets
Qantas Airways
Feb 16
STL6:38 amLambert-St Louis
33h 52m
1 stop
MEL9:30 amMelbourne
Feb 24
MEL6:30 pmMelbourne
46h 29m
2 stops
STL11:59 pmLambert-St Louis
$1,012
Qantas Airways
Feb 26
STL6:38 amLambert-St Louis
41h 37m
2 stops
MEL5:15 pmMelbourne
Mar 13
MEL12:00 pmMelbourne
27h 58m
1 stop
STL11:58 pmLambert-St Louis
$1,146
Qantas Airways
Feb 16
STL6:18 pmLambert-St Louis
29h 57m
2 stops
MEL5:15 pmMelbourne
Feb 24
MEL11:55 pmMelbourne
41h 04m
2 stops
STL11:59 pmLambert-St Louis
$1,220

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 January 15, 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 2/16

6:38 am-9:30 am

1 stop33h 52m

Melbourne

Tue 2/24

6:30 pm-11:59 pm

2 stops46h 29m

$1,012

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Thu 2/26

6:38 am-5:15 pm

2 stops41h 37m

Melbourne

Fri 3/13

12:00 pm-11:58 pm

1 stop27h 58m

$1,146

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Mon 5/4

1:11 pm-7:50 am

2 stops27h 39m

Melbourne

Sun 5/17

10:00 am-11:38 pm

2 stops28h 38m

$1,169

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Tue 6/23

6:59 pm-7:50 am

2 stops45h 51m

Melbourne

Wed 7/8

10:00 am-6:00 pm

2 stops23h 00m

$1,180

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Sun 5/24

5:00 pm-7:50 am

2 stops47h 50m

Melbourne

Wed 6/3

10:00 am-8:49 pm

2 stops25h 49m

$1,185

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Sun 3/1

6:50 pm-5:00 am

1 stop41h 10m

Melbourne

Sun 3/8

6:30 pm-10:58 pm

2 stops45h 28m

$1,194

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Mon 5/25

6:00 pm-10:55 am

2 stops25h 55m

Melbourne

Mon 6/1

8:35 am-10:06 pm

2 stops28h 31m

$1,216

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Sun 4/12

6:00 am-10:55 am

2 stops37h 55m

Melbourne

Sun 4/26

8:35 am-10:28 pm

2 stops28h 53m

$1,225

St. LouisMelbourne

STL - AVV

STLAVV

Lambert-St Louis

Thu 5/7

7:30 am-2:10 pm

3 stops39h 40m

Melbourne Avalon

Thu 5/14

8:55 pm-12:06 pm

3 stops54h 11m

$1,385

St. LouisMelbourne

STL - AVV

STLAVV

Lambert-St Louis

Mon 2/16

4:13 pm-2:10 pm

2 stops28h 57m

Melbourne Avalon

Tue 2/24

6:00 am-5:13 pm

2 stops28h 13m

$1,511

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 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, 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 $1,343. The month of March is another great option to travel to Melbourne, with average flight prices from St. Louis averaging around $1,348.

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.
  • 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
11,135 reviews
Search American Airlines flights
Fiji AirwaysPriceFrom $1,212Free CancellationRating
8.0
216 reviews
Search Fiji Airways flights
United AirlinesPriceFrom $1,279Free CancellationRating
7.4
9,164 reviews
Search United Airlines flights
Qantas AirwaysPriceFrom $1,384Free CancellationRating
7.5
971 reviews
Search Qantas Airways 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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1 adult
Sat 2/14
Sat 2/21

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