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

Air Canada and ANA 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.

$704 Cheap Flights from St. Louis to Australia in 2026

1 adult

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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.

13:05 - 07:05

STL

BNE

27h 00m

2 stops

10:00 - 20:25

BNE

STL

25h 25m

2 stops

$1,391Air Canada

Wed, 6 May - Wed, 13 May

13:05 - 07:05

STL

BNE

51h 00m

2 stops

10:00 - 20:25

BNE

STL

25h 25m

2 stops

$1,406Air Canada

Tue, 5 May - Wed, 13 May

14:15 - 11:30

STL

BNE

30h 15m

3 stops

19:25 - 20:09

BNE

STL

39h 44m

3 stops

$1,537Multiple Airlines

Wed, 6 May - Wed, 13 May

19:23 - 19:20

STL

MEL

32h 57m

2 stops

07:30 - 21:37

MEL

STL

29h 07m

2 stops

$1,685Multiple Airlines

Thu, 4 Jun - Thu, 11 Jun

18:11 - 19:20

STL

MEL

34h 09m

2 stops

07:30 - 22:59

MEL

STL

30h 29m

2 stops

$1,711Fiji Airways

Sat, 9 May - Sat, 16 May

18:11 - 19:20

STL

MEL

34h 09m

2 stops

07:30 - 22:59

MEL

STL

30h 29m

2 stops

$1,906Fiji Airways

Thu, 7 May - Thu, 14 May

15:38 - 05:00

STL

MEL

22h 22m

1 stop

09:45 - 23:08

MEL

STL

28h 23m

1 stop

$1,919Qantas Airways

Sat, 16 May - Thu, 13 Aug

19:23 - 08:15

STL

MEL

21h 52m

1 stop

10:55 - 18:17

MEL

STL

22h 22m

1 stop

$1,995United Airlines

Thu, 4 Jun - Thu, 11 Jun

09:10 - 08:15

STL

MEL

32h 05m

2 stops

09:30 - 21:26

MEL

STL

26h 56m

2 stops

$2,001United Airlines

Tue, 28 Apr - Sun, 5 Jul

06:30 - 12:10

STL

CBR

38h 40m

2 stops

17:35 - 23:02

CBR

STL

44h 27m

2 stops

$2,355Qantas Airways

Fri, 18 Sep - Thu, 24 Sep

Qantas Airways flights from St. Louis to Australia

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

Qantas Airways

4 May

STL06:21Lambert-St Louis

44h 19m

2 stops

SYD17:40Sydney Kingsford Smith

18 May

SYD12:00Sydney Kingsford Smith

22h 30m

1 stop

STL19:30Lambert-St Louis

$1,861

Qantas Airways

5 Apr

STL18:50Lambert-St Louis

25h 05m

2 stops

BNE10:55Brisbane

15 Apr

BNE07:55Brisbane

24h 26m

2 stops

STL17:21Lambert-St Louis

$1,872

Qantas Airways

3 May

STL06:21Lambert-St Louis

31h 39m

1 stop

BNE05:00Brisbane

11 May

BNE08:00Brisbane

26h 30m

2 stops

STL19:30Lambert-St Louis

$1,880

United Airlines flights from St. Louis to Australia

Our best United Airlines deals on St. Louis to Australia flight tickets

United Airlines

4 June

STL19:23Lambert-St Louis

21h 52m

1 stop

MEL08:15Melbourne

11 June

MEL10:55Melbourne

22h 22m

1 stop

STL18:17Lambert-St Louis

$1,995

United Airlines

28 Apr

STL09:10Lambert-St Louis

32h 05m

2 stops

MEL08:15Melbourne

5 July

MEL09:30Melbourne

26h 56m

2 stops

STL21:26Lambert-St Louis

$2,001

United Airlines

26 Apr

STL19:05Lambert-St Louis

20h 50m

1 stop

SYD06:55Sydney Kingsford Smith

10 May

SYD10:20Sydney Kingsford Smith

25h 23m

2 stops

STL20:43Lambert-St Louis

$2,005

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

St. LouisBrisbane

STL - BNE

STLBNE

Lambert-St Louis

Wed 6/5

13:05-07:05

2 stops27h 00m

Brisbane

Wed 13/5

10:00-20:25

2 stops25h 25m

$1,391

St. LouisBrisbane

STL - BNE

STLBNE

Lambert-St Louis

Tue 5/5

13:05-07:05

2 stops51h 00m

Brisbane

Wed 13/5

10:00-20:25

2 stops25h 25m

$1,406

St. LouisBrisbane

STL - BNE

STLBNE

Lambert-St Louis

Wed 6/5

14:15-11:30

3 stops30h 15m

Brisbane

Wed 13/5

19:25-20:09

3 stops39h 44m

$1,537

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Thu 4/6

19:23-19:20

2 stops32h 57m

Melbourne

Thu 11/6

07:30-21:37

2 stops29h 07m

$1,685

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Sat 9/5

18:11-19:20

2 stops34h 09m

Melbourne

Sat 16/5

07:30-22:59

2 stops30h 29m

$1,711

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Thu 7/5

18:11-19:20

2 stops34h 09m

Melbourne

Thu 14/5

07:30-22:59

2 stops30h 29m

$1,906

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Sat 16/5

15:38-05:00

1 stop22h 22m

Melbourne

Thu 13/8

09:45-23:08

1 stop28h 23m

$1,919

Fastest return journey

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Thu 4/6

19:23-08:15

1 stop21h 52m

Melbourne

Thu 11/6

10:55-18:17

1 stop22h 22m

$1,995

St. LouisMelbourne

STL - MEL

STLMEL

Lambert-St Louis

Tue 28/4

09:10-08:15

2 stops32h 05m

Melbourne

Sun 5/7

09:30-21:26

2 stops26h 56m

$2,001

St. LouisCanberra

STL - CBR

STLCBR

Lambert-St Louis

Fri 18/9

06:30-12:10

2 stops38h 40m

Canberra

Thu 24/9

17:35-23:02

2 stops44h 27m

$2,355

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 $1,812. 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 $1,870.

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	21h 04m
Direct flights	None

The fastest flight from St. Louis to Australia takes 21h 04m

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.