Cheap flights from St. Louis to Melbourne from $1,120

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 4/20. 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
4:09 pm - 5:00 am
STL
-
MEL
21h 51m1 stop
Qantas Airways Logo
1:35 pm - 6:20 pm
MEL
-
STL
19h 45m1 stop
$1,120Qantas Airways
Mon, Apr 20 - Wed, Jun 10
American Airlines Logo
11:14 am - 5:00 am
STL
-
MEL
26h 46m2 stops
American Airlines Logo
1:35 pm - 8:21 pm
MEL
-
STL
21h 46m1 stop
$1,137American Airlines
Mon, Apr 20 - Wed, Jun 10
American Airlines Logo
11:14 am - 5:00 am
STL
-
MEL
26h 46m2 stops
American Airlines Logo
8:15 am - 4:10 pm
MEL
-
STL
22h 55m2 stops
$1,165American Airlines
Mon, Apr 20 - Wed, Jun 10
Qantas Airways Logo
6:50 pm - 6:00 am
STL
-
MEL
43h 10m1 stop
Qantas Airways Logo
9:45 am - 11:16 pm
MEL
-
STL
28h 31m1 stop
$1,167Qantas Airways
Fri, Apr 3 - Sun, Apr 19
Qantas Airways Logo
6:50 pm - 6:00 am
STL
-
MEL
43h 10m1 stop
Qantas Airways Logo
9:45 am - 11:16 pm
MEL
-
STL
28h 31m1 stop
$1,168Qantas Airways
Fri, Apr 3 - Sun, Apr 19
American Airlines Logo
11:47 am - 7:45 am
STL
-
MEL
27h 58m2 stops
American Airlines Logo
9:45 am - 6:17 pm
MEL
-
STL
23h 32m2 stops
$1,186American Airlines
Fri, Apr 3 - Sun, Apr 19
American Airlines Logo
10:03 am - 6:00 am
STL
-
MEL
27h 57m2 stops
American Airlines Logo
9:45 am - 6:17 pm
MEL
-
STL
23h 32m2 stops
$1,187American Airlines
Fri, Apr 3 - Sun, Apr 19
American Airlines Logo
3:36 pm - 5:00 am
STL
-
MEL
68h 24m2 stops
American Airlines Logo
4:25 pm - 3:01 pm
MEL
-
STL
39h 36m2 stops
$1,258American Airlines
Sat, Feb 28 - Wed, Mar 4
Multiple Airlines Logo
5:04 pm - 12:25 pm
STL
-
MEL
26h 21m2 stops
Multiple Airlines Logo
4:05 pm - 7:29 pm
MEL
-
STL
20h 24m1 stop
$1,270Multiple Airlines
Fri, Jan 16 - Fri, Jan 23
United Airlines Logo
8:05 am - 9:30 am
STL
-
MEL
32h 25m2 stops
United Airlines Logo
1:00 pm - 9:13 pm
MEL
-
STL
25h 13m2 stops
$1,278United Airlines
Wed, Dec 31 - Wed, Jan 14

Qantas Airways flights from St. Louis to Melbourne

Our best Qantas Airways deals on St. Louis to Melbourne flight tickets
Qantas Airways
Apr 20
STL4:09 pmLambert-St Louis
21h 51m
1 stop
MEL5:00 amMelbourne
Jun 10
MEL1:35 pmMelbourne
19h 45m
1 stop
STL6:20 pmLambert-St Louis
Qantas Airways
Apr 3
STL6:50 pmLambert-St Louis
43h 10m
1 stop
MEL6:00 amMelbourne
Apr 19
MEL9:45 amMelbourne
28h 31m
1 stop
STL11:16 pmLambert-St Louis
Qantas Airways
Apr 3
STL6:50 pmLambert-St Louis
43h 10m
1 stop
MEL6:00 amMelbourne
Apr 19
MEL9:45 amMelbourne
28h 31m
1 stop
STL11:16 pmLambert-St Louis

American Airlines flights from St. Louis to Melbourne

Our best American Airlines deals on St. Louis to Melbourne flight tickets
American Airlines
Apr 20
STL11:14 amLambert-St Louis
26h 46m
2 stops
MEL5:00 amMelbourne
Jun 10
MEL1:35 pmMelbourne
21h 46m
1 stop
STL8:21 pmLambert-St Louis
American Airlines
Apr 20
STL11:14 amLambert-St Louis
26h 46m
2 stops
MEL5:00 amMelbourne
Jun 10
MEL8:15 amMelbourne
22h 55m
2 stops
STL4:10 pmLambert-St Louis
American Airlines
Apr 3
STL11:47 amLambert-St Louis
27h 58m
2 stops
MEL7:45 amMelbourne
Apr 19
MEL9:45 amMelbourne
23h 32m
2 stops
STL6:17 pmLambert-St Louis

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 December 4, 2025.
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 4/20

4:09 pm-5:00 am

1 stop21h 51m

Melbourne

Wed 6/10

1:35 pm-6:20 pm

1 stop19h 45m

$1,120

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Mon 4/20

11:14 am-5:00 am

2 stops26h 46m

Melbourne

Wed 6/10

1:35 pm-8:21 pm

1 stop21h 46m

$1,137

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Mon 4/20

11:14 am-5:00 am

2 stops26h 46m

Melbourne

Wed 6/10

8:15 am-4:10 pm

2 stops22h 55m

$1,165

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Fri 4/3

6:50 pm-6:00 am

1 stop43h 10m

Melbourne

Sun 4/19

9:45 am-11:16 pm

1 stop28h 31m

$1,167

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Fri 4/3

6:50 pm-6:00 am

1 stop43h 10m

Melbourne

Sun 4/19

9:45 am-11:16 pm

1 stop28h 31m

$1,168

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Fri 4/3

11:47 am-7:45 am

2 stops27h 58m

Melbourne

Sun 4/19

9:45 am-6:17 pm

2 stops23h 32m

$1,186

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Fri 4/3

10:03 am-6:00 am

2 stops27h 57m

Melbourne

Sun 4/19

9:45 am-6:17 pm

2 stops23h 32m

$1,187

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Sat 2/28

3:36 pm-5:00 am

2 stops68h 24m

Melbourne

Wed 3/4

4:25 pm-3:01 pm

2 stops39h 36m

$1,258

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Fri 1/16

5:04 pm-12:25 pm

2 stops26h 21m

Melbourne

Fri 1/23

4:05 pm-7:29 pm

1 stop20h 24m

$1,270

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Wed 12/31

8:05 am-9:30 am

2 stops32h 25m

Melbourne

Wed 1/14

1:00 pm-9:13 pm

2 stops25h 13m

$1,278

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 cheapest month to fly to Melbourne?

In general, March 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 $1,348. The month of January is another great option to travel to Melbourne, with average flight prices from St. Louis averaging around $1,396.

What is the cheapest day to depart on your flight to Melbourne?

On average, the least expensive day to fly to Melbourne from St. Louis is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $1,360. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Friday as prices are generally higher than usual. According to our data, the average ticket price to Melbourne on Friday is $2,159.

What is the cheapest time of day to depart on your flight to Melbourne?

Our most recent data shows that the best time of day to fly to Melbourne is at noon. Flights from St. Louis to Melbourne during this time can be as low as $1,087. Flights to Melbourne are more costly in the morning, with an average ticket price of $1,883. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

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

21h 51m

Direct flights

None
The fastest flight from St. Louis to Melbourne takes 21h 51m
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 21h 51m.

  • 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
Fiji AirwaysPriceFrom $1,212Free CancellationRating
8.1
209 reviews
Search Fiji Airways flights
American AirlinesPriceFrom $1,260Free CancellationRating
7.2
11,047 reviews
Search American Airlines flights
United AirlinesPriceFrom $1,279Free CancellationRating
7.4
9,066 reviews
Search United Airlines flights
Qantas AirwaysPriceFrom $1,384Free CancellationRating
7.5
947 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 1/3
Sat 1/10

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Fly into one of these airports located in Melbourne

Airports listed have a maximum distance of 31.3 mi from Melbourne