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

Qantas Airways, Delta, and United Airlines 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.

$867 Cheap Flights from St. Louis to Australia in 2026/27

Find the cheapest flights from St. Louis to Australia

Return

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

15:45 - 17:15STL Lambert-St Louis-MEL Melbourne

32h 30m2 stops Dallas/Fort Worth Auckland Intl

09:45 - 18:09MEL Melbourne-STL Lambert-St Louis

24h 24m1 stop Dallas/Fort Worth

$1,360Qantas Airways

Mon, 1 Feb - Wed, 31 Mar

18:00 - 12:50STL Lambert-St Louis-BNE Brisbane

26h 50m2 stops Dallas/Fort Worth Auckland Intl

09:40 - 13:41BNE Brisbane-STL Lambert-St Louis

20h 01m1 stop Dallas/Fort Worth

$1,381Qantas Airways

Mon, 1 Feb - Sun, 14 Feb

18:00 - 06:30STL Lambert-St Louis-BNE Brisbane

20h 30m1 stop Dallas/Fort Worth

18:30 - 13:41BNE Brisbane-STL Lambert-St Louis

35h 11m2 stops Auckland Intl Dallas/Fort Worth

$1,392Qantas Airways

Mon, 1 Feb - Sun, 14 Feb

14:48 - 08:20STL Lambert-St Louis-MEL Melbourne

48h 32m2 stops Dallas/Fort Worth Auckland Intl

22:45 - 23:36MEL Melbourne-STL Lambert-St Louis

41h 51m1 stop Los Angeles

$1,398Qantas Airways

Mon, 30 Nov - Mon, 25 Jan

14:48 - 08:20STL Lambert-St Louis-MEL Melbourne

48h 32m2 stops Dallas/Fort Worth Auckland Intl

22:45 - 23:36MEL Melbourne-STL Lambert-St Louis

41h 51m1 stop Los Angeles

$1,399Qantas Airways

Mon, 30 Nov - Mon, 25 Jan

14:48 - 08:20STL Lambert-St Louis-MEL Melbourne

48h 32m2 stops Dallas/Fort Worth Auckland Intl

22:45 - 23:36MEL Melbourne-STL Lambert-St Louis

41h 51m1 stop Los Angeles

$1,412Qantas Airways

Mon, 30 Nov - Mon, 25 Jan

06:00 - 05:50STL Lambert-St Louis-BNE Brisbane

31h 50m1 stop Los Angeles

14:15 - 18:26BNE Brisbane-STL Lambert-St Louis

44h 11m2 stops Auckland Intl Dallas/Fort Worth

$1,478Qantas Airways

Wed, 25 Nov - Wed, 2 Dec

16:05 - 08:45STL Lambert-St Louis-BNE Brisbane

48h 40m2 stops Toronto Pearson Intl Vancouver Intl

09:45 - 15:26BNE Brisbane-STL Lambert-St Louis

44h 41m2 stops Vancouver Intl Toronto Pearson Intl

$1,490Air Canada

Sat, 6 Mar - Mon, 15 Mar

08:10 - 05:50STL Lambert-St Louis-BNE Brisbane

29h 40m1 stop Los Angeles

08:30 - 14:20BNE Brisbane-STL Lambert-St Louis

45h 50m2 stops Auckland Intl Dallas/Fort Worth

$1,556Qantas Airways

Mon, 7 Dec - Sun, 20 Dec

16:05 - 07:45STL Lambert-St Louis-BNE Brisbane

47h 40m2 stops Toronto Pearson Intl Vancouver Intl

09:45 - 15:26BNE Brisbane-STL Lambert-St Louis

44h 41m2 stops Vancouver Intl Toronto Pearson Intl

$1,570Air Canada

Fri, 12 Mar - Sun, 21 Mar

Cheap last-minute flights

Enter your travel dates to find the best prices.

06:15 - 07:00STL Lambert-St Louis-SYD Sydney Kingsford Smith

31h 45m1 stop Houston George Bush Intcntl

11:50 - 22:15SYD Sydney Kingsford Smith-STL Lambert-St Louis

27h 25m1 stop San Francisco

$1,901United Airlines

Mon, 2 Nov - Mon, 9 Nov

16:39 - 09:20STL Lambert-St Louis-SYD Sydney Kingsford Smith

23h 41m2 stops Denver Intl San Francisco

11:20 - 18:05SYD Sydney Kingsford Smith-STL Lambert-St Louis

23h 45m2 stops Los Angeles San Francisco

$1,972United Airlines

Sun, 1 Nov - Sun, 15 Nov

20:15 - 22:55STL Lambert-St Louis-PER Perth

60h 40m2 stops Chicago O'Hare Intl Hong Kong Intl

08:30 - 16:43PER Perth-STL Lambert-St Louis

46h 13m2 stops Hong Kong Intl Chicago O'Hare Intl

$2,151Cathay Pacific

Sun, 1 Nov - Mon, 16 Nov

10:21 - 22:55STL Lambert-St Louis-PER Perth

46h 34m2 stops Dallas/Fort Worth Hong Kong Intl

08:30 - 18:17PER Perth-STL Lambert-St Louis

47h 47m2 stops Hong Kong Intl Chicago O'Hare Intl

$2,194Multiple Airlines

Sun, 1 Nov - Mon, 16 Nov

14:54 - 10:20STL Lambert-St Louis-SYD Sydney Kingsford Smith

26h 26m3 stops Dallas/Fort Worth Los Angeles Brisbane

11:05 - 20:42SYD Sydney Kingsford Smith-STL Lambert-St Louis

26h 37m2 stops Brisbane Los Angeles

$2,209Multiple Airlines

Mon, 2 Nov - Mon, 9 Nov

19:06 - 22:55STL Lambert-St Louis-PER Perth

37h 49m2 stops Dallas/Fort Worth Hong Kong Intl

08:30 - 16:43PER Perth-STL Lambert-St Louis

46h 13m2 stops Hong Kong Intl Chicago O'Hare Intl

$2,238Cathay Pacific

Sun, 1 Nov - Mon, 16 Nov

19:05 - 14:45STL Lambert-St Louis-PER Perth

29h 40m2 stops San Francisco Melbourne

15:15 - 18:05PER Perth-STL Lambert-St Louis

40h 50m3 stops Sydney Kingsford Smith Los Angeles San Francisco

$2,275United Airlines

Sun, 1 Nov - Mon, 16 Nov

19:05 - 14:45STL Lambert-St Louis-PER Perth

29h 40m2 stops San Francisco Melbourne

15:15 - 18:05PER Perth-STL Lambert-St Louis

40h 50m3 stops Sydney Kingsford Smith Los Angeles San Francisco

$2,471United Airlines

Sun, 1 Nov - Mon, 16 Nov

08:50 - 08:35STL Lambert-St Louis-SYD Sydney Kingsford Smith

30h 45m3 stops Denver Intl Los Angeles Auckland Intl

14:05 - 23:24SYD Sydney Kingsford Smith-STL Lambert-St Louis

26h 19m3 stops Auckland Intl Los Angeles Chicago O'Hare Intl

$2,513Multiple Airlines

Mon, 2 Nov - Mon, 9 Nov

14:54 - 12:30STL Lambert-St Louis-PER Perth

31h 36m2 stops Dallas/Fort Worth Sydney Kingsford Smith

22:45 - 17:55PER Perth-STL Lambert-St Louis

33h 10m3 stops Melbourne Sydney Kingsford Smith Dallas/Fort Worth

$2,611Multiple Airlines

Sun, 1 Nov - Mon, 16 Nov

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Qantas Airways flights from St. Louis to Australia

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

Qantas Airways

1 Feb

STL15:45Lambert-St Louis

32h 30m

2 stops

MEL17:15Melbourne

31 Mar

MEL09:45Melbourne

24h 24m

1 stop

STL18:09Lambert-St Louis

$1,360

Qantas Airways

1 Feb

STL18:00Lambert-St Louis

26h 50m

2 stops

BNE12:50Brisbane

14 Feb

BNE09:40Brisbane

20h 01m

1 stop

STL13:41Lambert-St Louis

$1,381

Qantas Airways

1 Feb

STL18:00Lambert-St Louis

20h 30m

1 stop

BNE06:30Brisbane

14 Feb

BNE18:30Brisbane

35h 11m

2 stops

STL13:41Lambert-St Louis

$1,392

Air New Zealand flights from St. Louis to Australia

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

Air New Zealand

21 Feb

STL06:10Lambert-St Louis

35h 25m

2 stops

SYD10:35Sydney Kingsford Smith

2 Mar

SYD11:50Sydney Kingsford Smith

27h 35m

2 stops

STL22:25Lambert-St Louis

$1,820

Air New Zealand

24 Jan

STL17:59Lambert-St Louis

47h 36m

2 stops

SYD10:35Sydney Kingsford Smith

6 Feb

SYD19:25Sydney Kingsford Smith

44h 05m

2 stops

STL22:30Lambert-St Louis

$1,860

Air New Zealand

8 Mar

STL06:15Lambert-St Louis

35h 20m

2 stops

SYD10:35Sydney Kingsford Smith

20 Mar

SYD19:25Sydney Kingsford Smith

42h 47m

2 stops

STL22:12Lambert-St Louis

$1,867

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

St. LouisMelbourne

STL Lambert-St Louis - MEL Melbourne

STLMEL

Lambert-St Louis

Mon 1/2

15:45-17:15

2 stops32h 30m

Melbourne

Wed 31/3

09:45-18:09

1 stop24h 24m

$1,360

Fastest return journey

St. LouisBrisbane

STL Lambert-St Louis - BNE Brisbane

STLBNE

Lambert-St Louis

Mon 1/2

18:00-12:50

2 stops26h 50m

Brisbane

Sun 14/2

09:40-13:41

1 stop20h 01m

$1,381

St. LouisBrisbane

STL Lambert-St Louis - BNE Brisbane

STLBNE

Lambert-St Louis

Mon 1/2

18:00-06:30

1 stop20h 30m

Brisbane

Sun 14/2

18:30-13:41

2 stops35h 11m

$1,392

St. LouisMelbourne

STL Lambert-St Louis - MEL Melbourne

STLMEL

Lambert-St Louis

Mon 30/11

14:48-08:20

2 stops48h 32m

Melbourne

Mon 25/1

22:45-23:36

1 stop41h 51m

$1,398

St. LouisMelbourne

STL Lambert-St Louis - MEL Melbourne

STLMEL

Lambert-St Louis

Mon 30/11

14:48-08:20

2 stops48h 32m

Melbourne

Mon 25/1

22:45-23:36

1 stop41h 51m

$1,399

St. LouisMelbourne

STL Lambert-St Louis - MEL Melbourne

STLMEL

Lambert-St Louis

Mon 30/11

14:48-08:20

2 stops48h 32m

Melbourne

Mon 25/1

22:45-23:36

1 stop41h 51m

$1,412

St. LouisBrisbane

STL Lambert-St Louis - BNE Brisbane

STLBNE

Lambert-St Louis

Wed 25/11

06:00-05:50

1 stop31h 50m

Brisbane

Wed 2/12

14:15-18:26

2 stops44h 11m

$1,478

St. LouisBrisbane

STL Lambert-St Louis - BNE Brisbane

STLBNE

Lambert-St Louis

Sat 6/3

16:05-08:45

2 stops48h 40m

Brisbane

Mon 15/3

09:45-15:26

2 stops44h 41m

$1,490

St. LouisBrisbane

STL Lambert-St Louis - BNE Brisbane

STLBNE

Lambert-St Louis

Mon 7/12

08:10-05:50

1 stop29h 40m

Brisbane

Sun 20/12

08:30-14:20

2 stops45h 50m

$1,556

St. LouisBrisbane

STL Lambert-St Louis - BNE Brisbane

STLBNE

Lambert-St Louis

Fri 12/3

16:05-07:45

2 stops47h 40m

Brisbane

Sun 21/3

09:45-15:26

2 stops44h 41m

$1,570

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, May 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 $1,374. If you don’t want to visit Australia in May, then you should wait until February to fly from St. Louis, when ticket prices are also cheap, with an average price of $1,789.

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

Best price found	$867
Fastest flight time	21h 15m
Direct flights	None

The best one-way flight to Australia from St. Louis in the past 72 hours is $867. The best return flight deal from St. Louis to Australia found on momondo in the last 72 hours is $1,360.

The fastest flight from St. Louis to Australia takes 21h 15m

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

Search flight deals

Frequently asked questions about flying from 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.

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.