Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from St. Louis to Melbourne from $550

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 5/23. 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
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from St. Louis to Melbourne

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
6:11 pm - 7:20 pm
STL
-
MEL
34h 09m
2 stops
Multiple Airlines Logo
7:30 am - 10:00 pm
MEL
-
STL
29h 30m
2 stops
$1,097Multiple Airlines
Sat, May 16 - Sat, Aug 15
Air Canada Logo
7:05 am - 11:05 am
STL
-
MEL
37h 00m
3 stops
Air Canada Logo
6:00 am - 12:06 pm
MEL
-
STL
45h 06m
3 stops
$1,200Air Canada
Tue, May 26 - Tue, Jun 2
Multiple Airlines Logo
2:15 pm - 11:05 am
STL
-
MEL
29h 50m
3 stops
Multiple Airlines Logo
8:50 pm - 8:09 pm
MEL
-
STL
38h 19m
3 stops
$1,401Multiple Airlines
Wed, May 13 - Wed, May 20
Air Canada Logo
7:05 am - 11:05 am
STL
-
MEL
37h 00m
3 stops
Air Canada Logo
6:00 am - 12:06 pm
MEL
-
STL
45h 06m
3 stops
$1,432Air Canada
Sun, May 10 - Thu, May 21
Multiple Airlines Logo
3:33 pm - 12:00 pm
STL
-
MEL
29h 27m
2 stops
Multiple Airlines Logo
9:45 am - 11:08 pm
MEL
-
STL
28h 23m
1 stop
$1,438Multiple Airlines
Thu, May 14 - Tue, Aug 11
Multiple Airlines Logo
12:36 pm - 6:45 am
STL
-
MEL
51h 09m
2 stops
Multiple Airlines Logo
1:35 pm - 7:31 pm
MEL
-
STL
20h 56m
1 stop
$1,468Multiple Airlines
Sun, May 10 - Sat, May 23
Multiple Airlines Logo
6:51 pm - 6:45 am
STL
-
MEL
44h 54m
2 stops
Multiple Airlines Logo
1:35 pm - 2:31 pm
MEL
-
STL
39h 56m
1 stop
$1,472Multiple Airlines
Tue, May 12 - Sat, May 23
United Airlines Logo
7:06 pm - 8:15 am
STL
-
MEL
22h 09m
1 stop
United Airlines Logo
10:55 am - 6:24 pm
MEL
-
STL
22h 29m
1 stop
$1,479United Airlines
Mon, May 18 - Tue, Aug 18
United Airlines Logo
7:06 pm - 8:15 am
STL
-
MEL
22h 09m
1 stop
United Airlines Logo
10:55 am - 6:17 pm
MEL
-
STL
22h 22m
1 stop
$1,481United Airlines
Sun, May 10 - Fri, May 22
Qantas Airways Logo
3:38 pm - 2:10 pm
STL
-
AVV
31h 32m
2 stops
Qantas Airways Logo
8:40 pm - 11:59 pm
AVV
-
STL
42h 19m
2 stops
$3,019Qantas Airways
Fri, May 1 - Sat, May 9

Qantas Airways flights from St. Louis to Melbourne

Our best Qantas Airways deals on St. Louis to Melbourne flight tickets
Qantas Airways
May 12
STL6:21 amLambert-St Louis
33h 24m
1 stop
MEL6:45 amMelbourne
May 19
MEL9:45 amMelbourne
29h 14m
1 stop
STL11:59 pmLambert-St Louis
$1,511
Qantas Airways
May 12
STL6:21 amLambert-St Louis
33h 24m
1 stop
MEL6:45 amMelbourne
May 21
MEL9:45 amMelbourne
29h 11m
1 stop
STL11:56 pmLambert-St Louis
$1,512
Qantas Airways
May 12
STL6:21 amLambert-St Louis
33h 24m
1 stop
MEL6:45 amMelbourne
Aug 14
MEL9:45 amMelbourne
28h 23m
1 stop
STL11:08 pmLambert-St Louis
$1,516

Air New Zealand flights from St. Louis to Melbourne

Our best Air New Zealand deals on St. Louis to Melbourne flight tickets
Air New Zealand
Apr 25
STL4:49 pmLambert-St Louis
27h 06m
2 stops
MEL10:55 amMelbourne
Apr 27
MEL9:00 pmMelbourne
36h 24m
2 stops
STL6:24 pmLambert-St Louis
$2,256
Air New Zealand
Apr 25
STL4:49 pmLambert-St Louis
27h 06m
2 stops
MEL10:55 amMelbourne
Apr 27
MEL9:00 pmMelbourne
36h 24m
2 stops
STL6:24 pmLambert-St Louis
$2,470
Air New Zealand
Apr 25
STL4:49 pmLambert-St Louis
27h 06m
2 stops
MEL10:55 amMelbourne
Apr 27
MEL9:00 pmMelbourne
36h 24m
2 stops
STL6:24 pmLambert-St Louis
$2,479

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 April 13, 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

Sat 5/16

6:11 pm-7:20 pm

2 stops34h 09m

Melbourne

Sat 8/15

7:30 am-10:00 pm

2 stops29h 30m

$1,097

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Tue 5/26

7:05 am-11:05 am

3 stops37h 00m

Melbourne

Tue 6/2

6:00 am-12:06 pm

3 stops45h 06m

$1,200

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Wed 5/13

2:15 pm-11:05 am

3 stops29h 50m

Melbourne

Wed 5/20

8:50 pm-8:09 pm

3 stops38h 19m

$1,401

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Sun 5/10

7:05 am-11:05 am

3 stops37h 00m

Melbourne

Thu 5/21

6:00 am-12:06 pm

3 stops45h 06m

$1,432

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Thu 5/14

3:33 pm-12:00 pm

2 stops29h 27m

Melbourne

Tue 8/11

9:45 am-11:08 pm

1 stop28h 23m

$1,438

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Sun 5/10

12:36 pm-6:45 am

2 stops51h 09m

Melbourne

Sat 5/23

1:35 pm-7:31 pm

1 stop20h 56m

$1,468

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Tue 5/12

6:51 pm-6:45 am

2 stops44h 54m

Melbourne

Sat 5/23

1:35 pm-2:31 pm

1 stop39h 56m

$1,472

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-6:24 pm

1 stop22h 29m

$1,479
Quickest round-trip

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Sun 5/10

7:06 pm-8:15 am

1 stop22h 09m

Melbourne

Fri 5/22

10:55 am-6:17 pm

1 stop22h 22m

$1,481

St. LouisMelbourne

STL - AVV

STLAVV

Lambert-St Louis

Fri 5/1

3:38 pm-2:10 pm

2 stops31h 32m

Melbourne Avalon

Sat 5/9

8:40 pm-11:59 pm

2 stops42h 19m

$3,019

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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, May 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 $1,155. The month of January is another great option to travel to Melbourne, with average flight prices from St. Louis averaging around $1,289.

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

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 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
7.1
11,573 reviews
Search American Airlines flights
Qantas AirwaysPriceFrom $1,155Free CancellationRating
7.5
1,018 reviews
Search Qantas Airways flights
United AirlinesPriceFrom $1,289Free CancellationRating
7.4
9,581 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.

An easier way to manage your Melbourne trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Wed 5/13
Wed 5/20
By creating a price alert you accept our terms of use and privacy policy.

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