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Cheap flights from St. Louis to Melbourne from $716

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 11/25. 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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Find the cheapest flights from St. Louis to Melbourne

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
6:30 pm - 9:15 amSTL-MEL
22h 45m1 stop
United Airlines Logo
10:55 am - 5:03 pmMEL-STL
21h 08m1 stop
$1,284United Airlines
Find Deal
Fri, Apr 3 - Sun, Apr 19
United Airlines Logo
3:00 pm - 8:30 amSTL-MEL
25h 30m2 stops
United Airlines Logo
10:30 am - 9:00 pmMEL-STL
26h 30m2 stops
$1,288United Airlines
Find Deal
Fri, Mar 13 - Sat, Mar 21
United Airlines Logo
1:27 pm - 8:30 amSTL-MEL
27h 03m2 stops
United Airlines Logo
9:30 am - 4:26 pmMEL-STL
21h 56m2 stops
$1,289United Airlines
Find Deal
Fri, Apr 3 - Sun, Apr 19
Qantas Airways Logo
6:55 am - 9:30 amSTL-MEL
33h 35m1 stop
Qantas Airways Logo
4:05 pm - 4:14 pmMEL-STL
41h 09m1 stop
$1,341Qantas Airways
Find Deal
Thu, Dec 11 - Thu, Jan 15
Multiple Airlines Logo
6:00 am - 12:30 pmSTL-MEL
38h 30m2 stops
Multiple Airlines Logo
12:45 am - 11:42 pmMEL-STL
39h 57m2 stops
$1,401Multiple Airlines
Find Deal
Tue, Oct 28 - Wed, Nov 12
American Airlines Logo
4:08 pm - 9:30 amSTL-MEL
25h 22m2 stops
American Airlines Logo
12:00 pm - 11:09 pmMEL-STL
27h 09m1 stop
$1,415American Airlines
Find Deal
Sat, Mar 14 - Sun, Mar 22
Fiji Airways Logo
5:09 pm - 1:00 pmSTL-MEL
27h 51m2 stops
Fiji Airways Logo
2:15 pm - 7:30 pmMEL-STL
22h 15m2 stops
$1,523Fiji Airways
Find Deal
Tue, Oct 28 - Thu, Nov 20
American Airlines Logo
9:41 am - 5:00 amSTL-MEL
27h 19m1 stop
American Airlines Logo
12:00 pm - 11:09 pmMEL-STL
27h 09m1 stop
$1,560American Airlines
Find Deal
Sat, Mar 14 - Sun, Mar 22
Qantas Airways Logo
5:02 pm - 2:35 pmSTL-MEL
29h 33m2 stops
Qantas Airways Logo
9:00 am - 7:30 pmMEL-STL
27h 30m2 stops
$1,568Qantas Airways
Find Deal
Mon, Oct 27 - Sun, Nov 23
Multiple Airlines Logo
6:13 pm - 6:45 pmSTL-MEL
31h 32m2 stops
Multiple Airlines Logo
7:00 am - 7:36 pmMEL-STL
29h 36m2 stops
$1,657Multiple Airlines
Find Deal
Sat, Nov 29 - Sat, Dec 6

Qantas Airways flights from St. Louis to Melbourne

Our best Qantas Airways deals on St. Louis to Melbourne flight tickets
Qantas Airways
Dec 11
STL6:55 amLambert-St Louis
33h 35m
1 stop
MEL9:30 amMelbourne
Jan 15
MEL4:05 pmMelbourne
41h 09m
1 stop
STL4:14 pmLambert-St Louis
$1,341
Find similar
Qantas Airways
Oct 25
STL6:39 amLambert-St Louis
32h 06m
1 stop
MEL6:45 amMelbourne
Nov 20
MEL1:55 pmMelbourne
39h 44m
2 stops
STL12:39 pmLambert-St Louis
$1,405
Find similar
Qantas Airways
Oct 27
STL5:02 pmLambert-St Louis
29h 33m
2 stops
MEL2:35 pmMelbourne
Nov 23
MEL9:00 amMelbourne
27h 30m
2 stops
STL7:30 pmLambert-St Louis
$1,568
Find similar

Fiji Airways flights from St. Louis to Melbourne

Our best Fiji Airways deals on St. Louis to Melbourne flight tickets
Fiji Airways
Oct 28
STL5:09 pmLambert-St Louis
27h 51m
2 stops
MEL1:00 pmMelbourne
Nov 20
MEL2:15 pmMelbourne
22h 15m
2 stops
STL7:30 pmLambert-St Louis
$1,523
Find similar
Fiji Airways
Oct 23
STL7:41 pmLambert-St Louis
25h 19m
2 stops
MEL1:00 pmMelbourne
Nov 20
MEL2:15 pmMelbourne
22h 15m
2 stops
STL7:30 pmLambert-St Louis
$1,852
Find similar
Fiji Airways
Oct 25
STL5:09 pmLambert-St Louis
27h 51m
2 stops
MEL1:00 pmMelbourne
Nov 22
MEL2:15 pmMelbourne
22h 23m
2 stops
STL7:38 pmLambert-St Louis
$1,991
Find similar

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 October 16, 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

Fri 4/3

6:30 pm-9:15 am

1 stop22h 45m

Melbourne

Sun 4/19

10:55 am-5:03 pm

1 stop21h 08m

$1,284

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Fri 3/13

3:00 pm-8:30 am

2 stops25h 30m

Melbourne

Sat 3/21

10:30 am-9:00 pm

2 stops26h 30m

$1,288

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Fri 4/3

1:27 pm-8:30 am

2 stops27h 03m

Melbourne

Sun 4/19

9:30 am-4:26 pm

2 stops21h 56m

$1,289

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Thu 12/11

6:55 am-9:30 am

1 stop33h 35m

Melbourne

Thu 1/15

4:05 pm-4:14 pm

1 stop41h 09m

$1,341

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Tue 10/28

6:00 am-12:30 pm

2 stops38h 30m

Melbourne

Wed 11/12

12:45 am-11:42 pm

2 stops39h 57m

$1,401

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Sat 3/14

4:08 pm-9:30 am

2 stops25h 22m

Melbourne

Sun 3/22

12:00 pm-11:09 pm

1 stop27h 09m

$1,415

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Tue 10/28

5:09 pm-1:00 pm

2 stops27h 51m

Melbourne

Thu 11/20

2:15 pm-7:30 pm

2 stops22h 15m

$1,523

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Sat 3/14

9:41 am-5:00 am

1 stop27h 19m

Melbourne

Sun 3/22

12:00 pm-11:09 pm

1 stop27h 09m

$1,560

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Mon 10/27

5:02 pm-2:35 pm

2 stops29h 33m

Melbourne

Sun 11/23

9:00 am-7:30 pm

2 stops27h 30m

$1,568

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Sat 11/29

6:13 pm-6:45 pm

2 stops31h 32m

Melbourne

Sat 12/6

7:00 am-7:36 pm

2 stops29h 36m

$1,657

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 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 $1,300. The month of October is another great option to travel to Melbourne, with average flight prices from St. Louis averaging around $1,429.

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

Direct flights

None
There are no direct flights from St. Louis to Melbourne. There are no popular flight routes from St. Louis to Melbourne.
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  • 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 45m.

  • 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
Qantas AirwaysPriceFrom $687Free CancellationRating
7.5
918 reviews
Search Qantas Airways flights
Fiji AirwaysPriceFrom $1,212Free CancellationRating
8.0
205 reviews
Search Fiji Airways flights
Air New ZealandPriceFrom $1,259Free CancellationRating
8.0
515 reviews
Search Air New Zealand flights
American AirlinesPriceFrom $1,260Free CancellationRating
7.2
11,040 reviews
Search American Airlines flights
United AirlinesPriceFrom $1,281Free CancellationRating
7.4
8,982 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