What is the cheapest airline that flies from Lambert-St Louis to Australia?

Air New Zealand, United Airlines, and Qantas Airways are the most popular carriers operating from Lambert-St Louis to Australia

When did momondo last update prices for flights from Lambert-St Louis Airport to Australia?

Prices for flights from Lambert-St Louis Airport to Australia are refreshed on a daily basis.

How old do you have to be to fly from Lambert-St Louis Airport to Australia?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Lambert-St Louis Airport to Australia.

What documentation or ID do you need to fly to Australia?

The travel and health documents you'll need for your trip to Australia 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 licence and a passport that is valid for six months after your intended arrival at Australia. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$752 Cheap Flights from St. Louis to Australia in 2026

1 adult

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

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

Trusted and free

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

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from St. Louis to Australia

Round-trip

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

14:40 - 07:05

STL

BNE

25h 25m

2 stops

10:00 - 20:25

BNE

STL

25h 25m

2 stops

$1,326Multiple Airlines

Wed, 29 Apr - Wed, 6 May

16:05 - 07:05

STL

BNE

48h 00m

2 stops

10:00 - 20:25

BNE

STL

49h 25m

2 stops

$1,335Air Canada

Tue, 28 Apr - Tue, 5 May

14:40 - 07:05

STL

BNE

25h 25m

2 stops

10:00 - 20:25

BNE

STL

25h 25m

2 stops

$1,343Multiple Airlines

Wed, 29 Apr - Wed, 6 May

08:30 - 10:55

STL

MEL

35h 25m

2 stops

12:10 - 22:30

MEL

STL

25h 20m

2 stops

$1,739Air New Zealand

Tue, 5 May - Mon, 18 May

06:21 - 09:05

STL

MEL

35h 44m

2 stops

13:35 - 19:30

MEL

STL

20h 55m

1 stop

$1,764Qantas Airways

Tue, 5 May - Mon, 18 May

08:30 - 10:55

STL

MEL

35h 25m

2 stops

08:35 - 05:47

MEL

STL

36h 12m

2 stops

$1,784Air New Zealand

Wed, 6 May - Mon, 18 May

15:38 - 12:10

STL

CBR

29h 32m

2 stops

06:10 - 19:30

CBR

STL

28h 20m

2 stops

$2,204American Airlines

Mon, 27 Apr - Mon, 4 May

06:21 - 10:35

STL

CNS

37h 14m

2 stops

13:40 - 17:21

CNS

STL

42h 41m

2 stops

$2,238Qantas Airways

Sun, 26 Apr - Sun, 3 May

08:30 - 13:15

STL

CBR

37h 45m

2 stops

07:15 - 18:22

CBR

STL

26h 07m

2 stops

$2,437United Airlines

Tue, 28 Apr - Tue, 5 May

08:30 - 13:15

STL

CBR

37h 45m

2 stops

07:15 - 16:57

CBR

STL

48h 42m

3 stops

$2,465United Airlines

Tue, 28 Apr - Tue, 5 May

Air Canada flights from St. Louis to Australia

Our best Air Canada deals on St. Louis to Australia flight tickets

Air Canada

28 Apr

STL16:05Lambert-St Louis

48h 00m

2 stops

BNE07:05Brisbane

5 May

BNE10:00Brisbane

49h 25m

2 stops

STL20:25Lambert-St Louis

$1,335

Air Canada

28 Apr

STL16:05Lambert-St Louis

52h 25m

3 stops

BNE11:30Brisbane

5 May

BNE10:00Brisbane

49h 25m

2 stops

STL20:25Lambert-St Louis

$1,383

Air Canada

27 Apr

STL16:05Lambert-St Louis

48h 00m

2 stops

BNE07:05Brisbane

4 May

BNE20:45Brisbane

38h 19m

3 stops

STL20:04Lambert-St Louis

$1,385

Qantas Airways flights from St. Louis to Australia

Our best Qantas Airways deals on St. Louis to Australia flight tickets

Qantas Airways

27 Apr

STL06:21Lambert-St Louis

31h 39m

1 stop

BNE05:00Brisbane

4 May

BNE09:10Brisbane

25h 20m

2 stops

STL19:30Lambert-St Louis

$1,727

Qantas Airways

26 Apr

STL06:21Lambert-St Louis

35h 59m

2 stops

SYD09:20Sydney Kingsford Smith

3 May

SYD12:00Sydney Kingsford Smith

20h 21m

1 stop

STL17:21Lambert-St Louis

$1,734

Qantas Airways

26 Apr

STL06:21Lambert-St Louis

31h 39m

1 stop

BNE05:00Brisbane

3 May

BNE20:50Brisbane

35h 31m

2 stops

STL17:21Lambert-St Louis

$1,751

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Fastest return journey

St. LouisBrisbane

STL - BNE

STLBNE

Lambert-St Louis

Wed 29/4

14:40-07:05

2 stops25h 25m

Brisbane

Wed 6/5

10:00-20:25

2 stops25h 25m

$1,326

St. LouisBrisbane

STL - BNE

STLBNE

Lambert-St Louis

Tue 28/4

16:05-07:05

2 stops48h 00m

Brisbane

Tue 5/5

10:00-20:25

2 stops49h 25m

$1,335

St. LouisBrisbane

STL - BNE

STLBNE

Lambert-St Louis

Wed 29/4

14:40-07:05

2 stops25h 25m

Brisbane

Wed 6/5

10:00-20:25

2 stops25h 25m

$1,343

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Tue 5/5

08:30-10:55

2 stops35h 25m

Melbourne

Mon 18/5

12:10-22:30

2 stops25h 20m

$1,739

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Tue 5/5

06:21-09:05

2 stops35h 44m

Melbourne

Mon 18/5

13:35-19:30

1 stop20h 55m

$1,764

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Wed 6/5

08:30-10:55

2 stops35h 25m

Melbourne

Mon 18/5

08:35-05:47

2 stops36h 12m

$1,784

St. LouisCanberra

STL - CBR

STLCBR

Lambert-St Louis

Mon 27/4

15:38-12:10

2 stops29h 32m

Canberra

Mon 4/5

06:10-19:30

2 stops28h 20m

$2,204

St. LouisCairns

STL - CNS

STLCNS

Lambert-St Louis

Sun 26/4

06:21-10:35

2 stops37h 14m

Cairns

Sun 3/5

13:40-17:21

2 stops42h 41m

$2,238

St. LouisCanberra

STL - CBR

STLCBR

Lambert-St Louis

Tue 28/4

08:30-13:15

2 stops37h 45m

Canberra

Tue 5/5

07:15-18:22

2 stops26h 07m

$2,437

St. LouisCanberra

STL - CBR

STLCBR

Lambert-St Louis

Tue 28/4

08:30-13:15

2 stops37h 45m

Canberra

Tue 5/5

07:15-16:57

3 stops48h 42m

$2,465

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from St. Louis to Australia

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

Prices

Airlines

What is the cheapest month to fly to Australia?

In general, March is the cheapest month to fly from St. Louis to Australia. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,796. If you don’t want to visit Australia in March, then you should wait until August to fly from St. Louis, when ticket prices are also cheap, with an average price of $1,853.

Can stopping save me money on St. Louis to Australia flights?

You could potentially save up to 2% on your flight if you consider stops on a St. Louis to Australia flight.

Cheap St. Louis to Australia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Australia

Fastest flight time	20h 32m
Direct flights	None

The fastest flight from St. Louis to Australia takes 20h 32m

There are no direct flights from St. Louis to Australia. There are no popular flight routes from St. Louis to Australia.

Search flight deals

When did momondo last update prices for flights from Lambert-St Louis Airport to Australia?
Prices for flights from Lambert-St Louis Airport to Australia are refreshed on a daily basis.
How old do you have to be to fly from Lambert-St Louis Airport to Australia?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Lambert-St Louis Airport to Australia.
What documentation or ID do you need to fly to Australia?
The travel and health documents you'll need for your trip to Australia 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 licence and a passport that is valid for six months after your intended arrival at Australia. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Australia?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from St. Louis to Australia. momondo saves you time and could save you money on your trip.

Can I find flights from St. Louis to Australia with flexible booking policies on momondo?

All flight searches from St. Louis to Australia on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from St. Louis to Australia?

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 Australia.

I’m not ready to book a flight from St. Louis to Australia right now. Can momondo alert me if prices change?

Price alerts on flights to Australia from St. Louis are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.